{"title":"Bestsellers","description":"\u003cp\u003e\u003cstrong\u003eOur bestselling classic Mercedes parts\u003c\/strong\u003e – based on our actual sales figures.\u003c\/p\u003e\u003cp\u003eThese are the parts that fail most often in classic Mercedes cars – which is exactly why we always keep them tested and refurbished in stock: fuel pressure regulators, fuel accumulators, duo valves, cold start valves and more. Over 1.000 buyers have rated us 99,8 % positive.\u003c\/p\u003e\u003cp\u003eDon't see your part here? Just ask – it's often already on the shelf: +49 179 8991069 (Mon–Fri 8 am–6 pm).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePopular categories:\u003c\/strong\u003e \u003ca href=\"\/en\/collections\/kraftstoffsystem\"\u003eFuel system \u0026amp; injection\u003c\/a\u003e · \u003ca href=\"\/en\/collections\/relais\"\u003eRelays\u003c\/a\u003e · \u003ca href=\"\/en\/collections\/tacho-kombiinstrumente\"\u003eSpeedometers \u0026amp; instrument clusters\u003c\/a\u003e. By model series: \u003ca href=\"\/en\/collections\/w124\"\u003eW124\u003c\/a\u003e · \u003ca href=\"\/en\/collections\/w201\"\u003eW201\u003c\/a\u003e · \u003ca href=\"\/en\/collections\/w126\"\u003eW126\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"mercedes-a1265404745-uberspannungsschutzrelais-uberlastschutz-w201-w116-w126-123","title":"Mercedes A1265404745 Overvoltage Protection Relay Overload Protection W201 W116 W126 123","description":"\u003cdiv style=\"background:#242833;border-radius:8px;padding:18px 20px;margin:0 0 14px;color:#ffffff;\"\u003e\n\u003cp style=\"margin:0 0 8px;\"\u003e\u003cstrong style=\"color:#c69a3a;\"\u003eOriginal Mercedes-Benz overvoltage protection relay – part number A1265404745.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0;color:#cfd3dc;\"\u003eGenuine part  ·  Fits W107, W123, W126, W201  ·  \u003cstrong style=\"color:#c69a3a;\"\u003eTested\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"background:#f5f6f8;border-left:4px solid #c69a3a;border-radius:8px;padding:14px 18px;margin:0 0 16px;\"\u003e\n\u003cp style=\"margin:0 0 6px;font-weight:700;\"\u003eCondition of this part\u003c\/p\u003e\n\u003cp style=\"margin:0;\"\u003eTested, works\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;margin:0 0 16px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:8px 10px 8px 0;border-bottom:1px solid #e3e5e9;white-space:nowrap;vertical-align:top;\"\u003ePart number\u003c\/th\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e3e5e9;\"\u003eA1265404745\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:8px 10px 8px 0;border-bottom:1px solid #e3e5e9;white-space:nowrap;vertical-align:top;\"\u003eFits\u003c\/th\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e3e5e9;\"\u003eW107, W123, W126, W201\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:8px 10px 8px 0;border-bottom:1px solid #e3e5e9;white-space:nowrap;vertical-align:top;\"\u003eScope of delivery\u003c\/th\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e3e5e9;\"\u003eAs pictured\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cstrong\u003eRelated categories:\u003c\/strong\u003e \u003ca href=\"\/en\/collections\/relais\"\u003eRelays\u003c\/a\u003e · \u003ca href=\"\/en\/collections\/w116\"\u003eW116\u003c\/a\u003e · \u003ca href=\"\/en\/collections\/w201\"\u003eW201\u003c\/a\u003e · \u003ca href=\"\/en\/collections\/w126\"\u003eW126\u003c\/a\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoes this part fit your car?\u003c\/strong\u003e Send us the VIN (chassis number) and model year – we'll check it for free: \u003ca href=\"tel:+491798991069\"\u003e+49 179 8991069\u003c\/a\u003e (Mon–Fri 8 am–6 pm) or via our \u003ca href=\"\/en\/pages\/contact?thema=Ersatzteil\"\u003econtact form\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eKFZTeile-Thot\u003c\/strong\u003e specialises in spare parts for Mercedes classic cars. Free shipping within Germany, 60-day return policy.\u003c\/p\u003e","brand":"Mercedes-Benz","offers":[{"title":"Default Title","offer_id":53701334630729,"sku":"60542-1","price":59.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0913\/5344\/8777\/files\/57_14467272-7170-4d25-95f4-5a58c29fcb75.jpg?v=1769161418"},{"product_id":"asd-relais-steuergerat-w201-190er-w124-w126-mercedes-a0085452432-modul-mercedes","title":"ASD Relay Control Unit W201 190 W124 W126 Mercedes A0085452432 Module Mercedes","description":"\u003cdiv style=\"background:#242833;border-radius:8px;padding:18px 20px;margin:0 0 14px;color:#ffffff;\"\u003e\n\u003cp style=\"margin:0 0 8px;\"\u003e\u003cstrong style=\"color:#c69a3a;\"\u003eOriginal Mercedes-Benz ASD control unit relay for W201, W124 and W126 – part number A0085452432.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0;color:#cfd3dc;\"\u003eGenuine part  ·  Fits W201  ·  \u003cstrong style=\"color:#c69a3a;\"\u003ePersonally tested\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"background:#f5f6f8;border-left:4px solid #c69a3a;border-radius:8px;padding:14px 18px;margin:0 0 16px;\"\u003e\n\u003cp style=\"margin:0 0 6px;font-weight:700;\"\u003eCondition of this part\u003c\/p\u003e\n\u003cp style=\"margin:0;\"\u003ePersonally tested, works. Used part.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;margin:0 0 16px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:8px 10px 8px 0;border-bottom:1px solid #e3e5e9;white-space:nowrap;vertical-align:top;\"\u003ePart number\u003c\/th\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e3e5e9;\"\u003eA0085452432\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:8px 10px 8px 0;border-bottom:1px solid #e3e5e9;white-space:nowrap;vertical-align:top;\"\u003eFits\u003c\/th\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e3e5e9;\"\u003eW201 (190), W124, W126\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:8px 10px 8px 0;border-bottom:1px solid #e3e5e9;white-space:nowrap;vertical-align:top;\"\u003eScope of delivery\u003c\/th\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e3e5e9;\"\u003eAs pictured\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cstrong\u003eRelated categories:\u003c\/strong\u003e \u003ca href=\"\/en\/collections\/relais\"\u003eRelays\u003c\/a\u003e · \u003ca href=\"\/en\/collections\/w201\"\u003eW201\u003c\/a\u003e · \u003ca href=\"\/en\/collections\/w124\"\u003eW124\u003c\/a\u003e · \u003ca href=\"\/en\/collections\/w126\"\u003eW126\u003c\/a\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoes this part fit your car?\u003c\/strong\u003e Send us the VIN (chassis number) and model year – we'll check it for free: \u003ca href=\"tel:+491798991069\"\u003e+49 179 8991069\u003c\/a\u003e (Mon–Fri 8 am–6 pm) or via our \u003ca href=\"\/en\/pages\/contact?thema=Ersatzteil\"\u003econtact form\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eKFZTeile-Thot\u003c\/strong\u003e specialises in spare parts for Mercedes classic cars. Free shipping within Germany, 60-day return policy.\u003c\/p\u003e","brand":"Mercedes-Benz","offers":[{"title":"Default Title","offer_id":54198981099849,"sku":"60299","price":59.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0913\/5344\/8777\/files\/57_1f1044a7-a723-40c7-89e7-ae14bd535b5d.jpg?v=1776237313"},{"product_id":"blinkerrelais-a2018210047-w201-w124-w126-w202-wischerrelais-relais-mercedes","title":"Turn Signal Relay A2018210047 W201 W124 W126 W202 Wiper Relay Relay Mercedes","description":"\u003cdiv style=\"background:#242833;border-radius:8px;padding:18px 20px;margin:0 0 14px;color:#ffffff;\"\u003e\n\u003cp style=\"margin:0 0 8px;\"\u003e\u003cstrong style=\"color:#c69a3a;\"\u003eOriginal Mercedes-Benz turn signal relay \/ wiper relay for W201, W124 and W126 – part number A2018210047.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0;color:#cfd3dc;\"\u003eGenuine part  ·  Fits W201, W124, W126, W202  ·  \u003cstrong style=\"color:#c69a3a;\"\u003ePersonally tested\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"background:#f5f6f8;border-left:4px solid #c69a3a;border-radius:8px;padding:14px 18px;margin:0 0 16px;\"\u003e\n\u003cp style=\"margin:0 0 6px;font-weight:700;\"\u003eCondition of this part\u003c\/p\u003e\n\u003cp style=\"margin:0;\"\u003ePersonally tested, works. Used part.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;margin:0 0 16px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:8px 10px 8px 0;border-bottom:1px solid #e3e5e9;white-space:nowrap;vertical-align:top;\"\u003ePart number\u003c\/th\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e3e5e9;\"\u003eA2018210047\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:8px 10px 8px 0;border-bottom:1px solid #e3e5e9;white-space:nowrap;vertical-align:top;\"\u003eFits\u003c\/th\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e3e5e9;\"\u003eW201, W124, W126, W202\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:8px 10px 8px 0;border-bottom:1px solid #e3e5e9;white-space:nowrap;vertical-align:top;\"\u003eScope of delivery\u003c\/th\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e3e5e9;\"\u003eAs pictured\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cstrong\u003eRelated categories:\u003c\/strong\u003e \u003ca href=\"\/en\/collections\/relais\"\u003eRelays\u003c\/a\u003e · \u003ca href=\"\/en\/collections\/w201\"\u003eW201\u003c\/a\u003e · \u003ca href=\"\/en\/collections\/w124\"\u003eW124\u003c\/a\u003e · \u003ca href=\"\/en\/collections\/w126\"\u003eW126\u003c\/a\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoes this part fit your car?\u003c\/strong\u003e Send us the VIN (chassis number) and model year – we'll check it for free: \u003ca href=\"tel:+491798991069\"\u003e+49 179 8991069\u003c\/a\u003e (Mon–Fri 8 am–6 pm) or via our \u003ca href=\"\/en\/pages\/contact?thema=Ersatzteil\"\u003econtact form\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eKFZTeile-Thot\u003c\/strong\u003e specialises in spare parts for Mercedes classic cars. Free shipping within Germany, 60-day return policy.\u003c\/p\u003e","brand":"Mercedes-Benz","offers":[{"title":"Default Title","offer_id":54198981755209,"sku":"60295","price":29.99,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0913\/5344\/8777\/files\/57_e8cf7362-4fc0-4cb3-9448-f75e5e052f53.jpg?v=1776237373"},{"product_id":"mercedes-kraftstoffdruckregler-druckregler-0438161001-bosch-w126-r129-w124-w201","title":"Mercedes fuel pressure regulator pressure regulator 0438161001 BOSCH W126 R129 W124 W201","description":"\u003cdiv style=\"background:#242833;border-radius:8px;padding:18px 20px;margin:0 0 14px;color:#ffffff;\"\u003e\n\u003cp style=\"margin:0 0 8px;\"\u003e\u003cstrong style=\"color:#c69a3a;\"\u003eGenuine fuel pressure regulator Mercedes W201 W124 W126 R129 BOSCH – part number 0438161001.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0;color:#cfd3dc;\"\u003eGenuine part  ·  Fits W201, W124, W126, R129  ·  \u003cstrong style=\"color:#c69a3a;\"\u003eTested\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"background:#f5f6f8;border-left:4px solid #c69a3a;border-radius:8px;padding:14px 18px;margin:0 0 16px;\"\u003e\n\u003cp style=\"margin:0 0 6px;font-weight:700;\"\u003eCondition of this part\u003c\/p\u003e\n\u003cp style=\"margin:0;\"\u003eTested, works, small scratches and signs of use\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;margin:0 0 16px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:8px 10px 8px 0;border-bottom:1px solid #e3e5e9;white-space:nowrap;vertical-align:top;\"\u003ePart number\u003c\/th\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e3e5e9;\"\u003e0438161001\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:8px 10px 8px 0;border-bottom:1px solid #e3e5e9;white-space:nowrap;vertical-align:top;\"\u003eManufacturer\u003c\/th\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e3e5e9;\"\u003eBOSCH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:8px 10px 8px 0;border-bottom:1px solid #e3e5e9;white-space:nowrap;vertical-align:top;\"\u003eFits\u003c\/th\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e3e5e9;\"\u003eW201, W124, W126, R129\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:8px 10px 8px 0;border-bottom:1px solid #e3e5e9;white-space:nowrap;vertical-align:top;\"\u003eEngines\u003c\/th\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e3e5e9;\"\u003e116.020, 116.024, 116.025, 116.028, 116.029, 116.032, 116.033, 116.036, 116.120\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:8px 10px 8px 0;border-bottom:1px solid #e3e5e9;white-space:nowrap;vertical-align:top;\"\u003eScope of delivery\u003c\/th\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e3e5e9;\"\u003eAs pictured\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cstrong\u003eRelated categories:\u003c\/strong\u003e \u003ca href=\"\/en\/collections\/w201\"\u003eW201\u003c\/a\u003e · \u003ca href=\"\/en\/collections\/w124\"\u003eW124\u003c\/a\u003e · \u003ca href=\"\/en\/collections\/w126\"\u003eW126\u003c\/a\u003e · \u003ca href=\"\/en\/collections\/kraftstoffsystem\"\u003eFuel system \u0026amp; injection\u003c\/a\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoes this part fit your car?\u003c\/strong\u003e Send us the VIN (chassis number) and model year – we'll check it for free: \u003ca href=\"tel:+491798991069\"\u003e+49 179 8991069\u003c\/a\u003e (Mon–Fri 8 am–6 pm) or via our \u003ca href=\"\/en\/pages\/contact?thema=Ersatzteil\"\u003econtact form\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eKFZTeile-Thot\u003c\/strong\u003e specialises in spare parts for Mercedes classic cars. Free shipping within Germany, 60-day return policy.\u003c\/p\u003e","brand":"Bosch","offers":[{"title":"Default Title","offer_id":54199533928777,"sku":"60549","price":149.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0913\/5344\/8777\/files\/57_18463fcf-7e5c-4d9a-af31-d3b4b7ff273b.jpg?v=1776243894"},{"product_id":"mercedes-w124-turschloss-satz-schlussel-schliesszylinder-orig-e-klasse","title":"Mercedes W124 door lock set key lock cylinder genuine E-Class","description":"\u003cdiv style=\"background:#242833;border-radius:8px;padding:18px 20px;margin:0 0 14px;color:#ffffff;\"\u003e\n\u003cp style=\"margin:0 0 8px;\"\u003e\u003cstrong style=\"color:#c69a3a;\"\u003eGenuine Mercedes-Benz W124 door lock set lock cylinder with key.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0;color:#cfd3dc;\"\u003eGenuine part  ·  \u003cstrong style=\"color:#c69a3a;\"\u003eFits W124\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"background:#f5f6f8;border-left:4px solid #c69a3a;border-radius:8px;padding:14px 18px;margin:0 0 16px;\"\u003e\n\u003cp style=\"margin:0 0 6px;font-weight:700;\"\u003eCondition of this part\u003c\/p\u003e\n\u003cp style=\"margin:0;\"\u003eNew springs, tested, functional\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;margin:0 0 16px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:8px 10px 8px 0;border-bottom:1px solid #e3e5e9;white-space:nowrap;vertical-align:top;\"\u003eFits\u003c\/th\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e3e5e9;\"\u003eW124 (all models)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:8px 10px 8px 0;border-bottom:1px solid #e3e5e9;white-space:nowrap;vertical-align:top;\"\u003eScope of delivery\u003c\/th\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e3e5e9;\"\u003eAs pictured\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cstrong\u003eRelated categories:\u003c\/strong\u003e \u003ca href=\"\/en\/collections\/w124\"\u003eW124\u003c\/a\u003e · \u003ca href=\"\/en\/collections\/schloesser-tuergriffe\"\u003eLocks \u0026amp; door handles\u003c\/a\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoes this part fit your car?\u003c\/strong\u003e Send us the VIN (chassis number) and model year – we'll check it for free: \u003ca href=\"tel:+491798991069\"\u003e+49 179 8991069\u003c\/a\u003e (Mon–Fri 8 am–6 pm) or via our \u003ca href=\"\/en\/pages\/contact?thema=Ersatzteil\"\u003econtact form\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eKFZTeile-Thot\u003c\/strong\u003e specialises in spare parts for Mercedes classic cars. Free shipping within Germany, 60-day return policy.\u003c\/p\u003e","brand":"Mercedes-Benz","offers":[{"title":"Default Title","offer_id":54199712809289,"sku":"60626","price":149.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0913\/5344\/8777\/files\/57_8ff0f69b-f91c-4eb3-9c00-7c1acc215be8.png?v=1776244710"},{"product_id":"bosch-warmlaufregler-0438140100-mercedes-w123-230e-230ce-230te-m102-k-jetronic","title":"Bosch warm-up regulator 0438140100 Mercedes W123 230E 230CE 230TE M102 K-Jetronic","description":"\u003cdiv style=\"background:#242833;border-radius:8px;padding:18px 20px;margin:0 0 14px;color:#ffffff;\"\u003e\n\u003cp style=\"margin:0 0 8px;\"\u003e\u003cstrong style=\"color:#c69a3a;\"\u003eRefurbished genuine Bosch warm-up regulator.\u003c\/strong\u003e Bosch warm-up regulator 0438140100 for the K-Jetronic of the Mercedes-Benz four-cylinder inline engine M102 E23 in model series W123\/C123\/S123 (230 E, 230 CE, 230 TE). The regulator was completely disassembled, cleaned and set on the test bench to the original Bosch specification.\u003c\/p\u003e\n\u003cp style=\"margin:0;color:#cfd3dc;\"\u003eCompletely disassembled and cleaned  ·  New diaphragm and seals  ·  \u003cstrong style=\"color:#c69a3a;\"\u003e5-year warranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003e\u003cspan style=\"display:inline-block;background:#f5f6f8;border:1px solid #c69a3a;border-radius:8px;padding:5px 12px;margin:2px 6px 2px 0;font-weight:600;\"\u003eControl pressure ✓\u003c\/span\u003e\u003cspan style=\"display:inline-block;background:#f5f6f8;border:1px solid #c69a3a;border-radius:8px;padding:5px 12px;margin:2px 6px 2px 0;font-weight:600;\"\u003eHeating resistor ✓\u003c\/span\u003e\u003cspan style=\"display:inline-block;background:#f5f6f8;border:1px solid #c69a3a;border-radius:8px;padding:5px 12px;margin:2px 6px 2px 0;font-weight:600;\"\u003eSprings ✓\u003c\/span\u003e\u003cbr\u003eThe control pressure was set on the test bench to the original Bosch specification and the pressure values were logged, the heating resistor was tested for function and the springs were replaced if necessary.\u003c\/p\u003e\n\n\u003cdiv style=\"background:#f5f6f8;border-left:4px solid #c69a3a;border-radius:8px;padding:14px 18px;margin:0 0 16px;\"\u003e\n\u003cp style=\"margin:0 0 6px;font-weight:700;\"\u003e5-year warranty on this refurbished warm-up regulator\u003c\/p\u003e\n\u003cp style=\"margin:0;\"\u003eIf there is a problem: send the regulator in – we will repair or replace it. In addition, a 60-day return policy and free shipping within Germany apply.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c!--altteil-bonus--\u003e\u003cdiv style=\"background:#f5f6f8;border:2px solid #c69a3a;border-radius:8px;padding:14px 18px;margin:0 0 16px;\"\u003e\n\u003cp style=\"margin:0 0 6px;font-weight:700;\"\u003e♻ Old-part bonus: 50 € back for your old regulator\u003c\/p\u003e\n\u003cp style=\"margin:0;\"\u003eBuy this regulator at the regular price, install it at your leisure and then send us your old Bosch warm-up regulator – even if defective, as long as it is complete. After receipt, we refund you \u003cstrong\u003e50 €\u003c\/strong\u003e to your payment method. Simply register your old part within 60 days on our \u003ca href=\"\/en\/pages\/ankauf#anmelden\"\u003ebuyback page\u003c\/a\u003e – all conditions are listed there as well.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;margin:0 0 16px;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:8px 6px;border-bottom:2px solid #242833;\"\u003eYour options\u003c\/th\u003e\n\u003cth style=\"text-align:left;padding:8px 6px;border-bottom:2px solid #242833;\"\u003eCondition\u003c\/th\u003e\n\u003cth style=\"text-align:left;padding:8px 6px;border-bottom:2px solid #242833;\"\u003eWarranty\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 6px;border-bottom:1px solid #e3e5e9;\"\u003eNew part from Bosch\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px;border-bottom:1px solid #e3e5e9;\"\u003eno longer manufactured\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px;border-bottom:1px solid #e3e5e9;\"\u003e–\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 6px;border-bottom:1px solid #e3e5e9;\"\u003eUntested used regulator\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px;border-bottom:1px solid #e3e5e9;\"\u003eControl pressure and diaphragm condition unknown\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px;border-bottom:1px solid #e3e5e9;\"\u003enone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f6f8;\"\u003e\n\u003ctd style=\"padding:8px 6px;font-weight:700;\"\u003e\u003cstrong\u003eRefurbished genuine part (this listing)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px;font-weight:700;\"\u003edisassembled, cleaned, new wear parts, set on the test bench\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px;font-weight:700;\"\u003e5 years ✓\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eHow can you tell a warm-up regulator is defective?\u003c\/h3\u003e\n\n\u003cp\u003eThe warm-up regulator is a control-pressure regulator of the Bosch K-Jetronic for the Mercedes-Benz 4-cylinder inline engine M102 E23. When the engine is cold, it lowers the control pressure and thereby enriches the mixture in the warm-up phase; the electric heating adapts the regulation to the engine characteristics.\u003c\/p\u003e\n\n\u003cp\u003eIf the regulator is defective, the control pressure is no longer lowered or adjusted correctly in the warm-up phase, so the mixture enrichment during cold running is no longer right.\u003c\/p\u003e\n\n\u003cp\u003eDetailed diagnostic instructions in the guide: \u003ca href=\"\/en\/blogs\/mercedes-tacho-reparatur\/warmlaufregler-w123-230e-endnummer-0438140065\"\u003eWarm-up regulator W123 230 E: which end number fits\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch3\u003eWhat was done during refurbishment\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eComplete disassembly into all individual parts\u003c\/li\u003e\n\u003cli\u003eCleaning in an ultrasonic bath\u003c\/li\u003e\n\u003cli\u003eNew diaphragm installed\u003c\/li\u003e\n\u003cli\u003eSprings checked and replaced if necessary\u003c\/li\u003e\n\u003cli\u003eAll seals replaced\u003c\/li\u003e\n\u003cli\u003eHeating resistor tested for function\u003c\/li\u003e\n\u003cli\u003eSet on the test bench to the original Bosch specification\u003c\/li\u003e\n\u003cli\u003ePressure values logged\u003c\/li\u003e\n\u003cli\u003eDelivered with new copper sealing rings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFits the following vehicles\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eModel series W123 \/ C123 \/ S123 (1976–1986)\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e230 E sedan [W123] — 100 kW (136 PS), 2.3 l, engine M102 E23, model year 04.1980 – 12.1985\u003c\/li\u003e\n\u003cli\u003e230 CE coupe [C123] — 100 kW (136 PS), 2.3 l, engine M102 E23, model year 04.1980 – 12.1985\u003c\/li\u003e\n\u003cli\u003e230 TE T-Modell \/ station wagon [S123] — 100 kW (136 PS), 2.3 l, engine M102 E23, model year 04.1980 – 12.1985\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThe Bosch numbers 0438140065, 0438140097 and 0438140150 are compatible for the same fitment and directly interchangeable in case of shortages.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePart numbers:\u003c\/strong\u003e Bosch 0438140100 · Mercedes 000 070 27 62 (A 000 070 27 62) · Mercedes 102 070 03 62 (A 102 070 03 62) · Exchange number 0438140150 · Bosch Refurbish Service No. F 026 TX2 103\u003c\/p\u003e\n\n\u003cdiv style=\"background:#f5f6f8;border-left:4px solid #c69a3a;border-radius:8px;padding:14px 18px;margin:0 0 16px;\"\u003e\n\u003cp style=\"margin:0 0 6px;font-weight:700;\"\u003e⚠ Important: compare the part number before buying\u003c\/p\u003e\n\u003cp style=\"margin:0 0 8px;\"\u003eThis warm-up regulator is intended exclusively for the injection models E, CE and TE with the four-cylinder engine M102 E23, not for carburetor versions. The 230 GE (G-Class) uses a different warm-up regulator (0438140065), and the six-cylinder models 280 E, 280 CE, 280 TE use other regulators (e.g. 0438140057, 0438140067, 0438140147). The successor series W124 with KE-Jetronic uses completely different components from 1985. Before buying, compare the Bosch number on your old part 1:1 with the part number stated here.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 4px;font-weight:600;\"\u003eDoes not fit:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCarburetor versions (200, 230, 230 C, 230 T) do not need this regulator — it is intended exclusively for the injection models “E” \/ “CE” \/ “TE” with M102 engine\u003c\/li\u003e\n\u003cli\u003eThe 230 GE [W460] G-Class uses a different warm-up regulator (0438140065)\u003c\/li\u003e\n\u003cli\u003e6-cylinder models such as 280E, 280CE, 280TE [W123] use other regulators (e.g. 0438140057, 0438140067, 0438140147)\u003c\/li\u003e\n\u003cli\u003eSuccessor series W124 from 1985 with KE-Jetronic uses completely different components\u003c\/li\u003e\n\u003cli\u003eDiesel models (240D, 300D) have no warm-up regulator\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoes this part fit your car?\u003c\/strong\u003e Send us the VIN (chassis number) and model year – we'll check it for free: \u003ca href=\"tel:+491798991069\"\u003e+49 179 8991069\u003c\/a\u003e (Mon–Fri 8 am–6 pm) or via our \u003ca href=\"\/en\/pages\/contact?thema=Ersatzteil\"\u003econtact form\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\n\u003ch4\u003eWhat warranty is provided?\u003c\/h4\u003e\n\n\u003cp\u003e5-year warranty on this refurbished regulator. If there is a problem, send it in – we will repair or replace it. In addition, a 60-day return policy and free shipping within Germany apply.\u003c\/p\u003e\n\n\u003ch4\u003eDoes the regulator fit my vehicle?\u003c\/h4\u003e\n\n\u003cp\u003eCompare the Bosch number on your old part 1:1 with the part number stated here. If in doubt, we will check the fit free of charge based on the VIN (chassis number), model year or engine code.\u003c\/p\u003e\n\n\u003ch4\u003eWhat was done to the regulator?\u003c\/h4\u003e\n\n\u003cp\u003eThe regulator was completely disassembled, cleaned in an ultrasonic bath and fitted with a new diaphragm and new seals. The heating resistor was tested for function and the springs were replaced if necessary. It was then set on the test bench to the original Bosch specification and the pressure values were logged. It is delivered with new copper sealing rings.\u003c\/p\u003e\n\n\u003ch4\u003eWhy not a new part?\u003c\/h4\u003e\n\n\u003cp\u003eBosch no longer supplies new warm-up regulators. That is why we rely on refurbishing genuine parts.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eKFZTeile-Thot\u003c\/strong\u003e specializes in spare parts for Mercedes classic cars and classics – with in-house refurbishment for Bosch K-Jetronic components.\u003c\/p\u003e","brand":"Bosch","offers":[{"title":"Default Title","offer_id":54850905211209,"sku":"60736","price":549.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0913\/5344\/8777\/files\/57_936547a6-3225-4936-9bc9-20d61ce39a52.jpg?v=1787305710"},{"product_id":"bosch-kaltstartventil-0280170412-blau-mercedes-w124-w126-w201-190e-300-e-ferrari","title":"Bosch cold start valve 0280170412 blue Mercedes W124 W126 W201 190E 300 E Ferrari","description":"\u003cdiv style=\"background:#242833;border-radius:8px;padding:18px 20px;margin:0 0 14px;color:#ffffff;\"\u003e\n\u003cp style=\"margin:0 0 8px;\"\u003e\u003cstrong style=\"color:#c69a3a;\"\u003eOriginal Bosch cold start valve, blue housing, refurbished.\u003c\/strong\u003e Bosch cold start valve 0280170412 with blue housing and long nozzle tube, fits Mercedes models with the M103 engine (W124, W126, W201, R107) as well as Ferrari models with K-Jetronic. Genuine, fully disassembled, cleaned and tested.\u003c\/p\u003e\n\u003cp style=\"margin:0;color:#cfd3dc;\"\u003eFully disassembled and cleaned  ·  Tested and fully functional  ·  \u003cstrong style=\"color:#c69a3a;\"\u003e5-year warranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003e\u003cspan style=\"display:inline-block;background:#f5f6f8;border:1px solid #c69a3a;border-radius:8px;padding:5px 12px;margin:2px 6px 2px 0;font-weight:600;\"\u003eGenuine ✓\u003c\/span\u003e\u003cspan style=\"display:inline-block;background:#f5f6f8;border:1px solid #c69a3a;border-radius:8px;padding:5px 12px;margin:2px 6px 2px 0;font-weight:600;\"\u003eTested ✓\u003c\/span\u003e\u003cspan style=\"display:inline-block;background:#f5f6f8;border:1px solid #c69a3a;border-radius:8px;padding:5px 12px;margin:2px 6px 2px 0;font-weight:600;\"\u003eFunctional ✓\u003c\/span\u003e\u003cbr\u003eEvery valve is a genuine Bosch part, fully disassembled, cleaned and function tested.\u003c\/p\u003e\n\n\u003cdiv style=\"background:#f5f6f8;border-left:4px solid #c69a3a;border-radius:8px;padding:14px 18px;margin:0 0 16px;\"\u003e\n\u003cp style=\"margin:0 0 6px;font-weight:700;\"\u003e5-year warranty on this refurbished valve\u003c\/p\u003e\n\u003cp style=\"margin:0;\"\u003eShould a problem occur: send in the valve – we will repair or replace it. In addition, a 60-day return policy and free shipping within Germany apply.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;margin:0 0 16px;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:8px 6px;border-bottom:2px solid #242833;\"\u003eYour options\u003c\/th\u003e\n\u003cth style=\"text-align:left;padding:8px 6px;border-bottom:2px solid #242833;\"\u003eCondition\u003c\/th\u003e\n\u003cth style=\"text-align:left;padding:8px 6px;border-bottom:2px solid #242833;\"\u003eWarranty\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 6px;border-bottom:1px solid #e3e5e9;\"\u003eUntested used part\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px;border-bottom:1px solid #e3e5e9;\"\u003eCondition and function unknown\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px;border-bottom:1px solid #e3e5e9;\"\u003enone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f6f8;\"\u003e\n\u003ctd style=\"padding:8px 6px;font-weight:700;\"\u003e\u003cstrong\u003eRefurbished genuine part (this listing)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px;font-weight:700;\"\u003efully disassembled, cleaned and tested, fully functional\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px;font-weight:700;\"\u003e5 years ✓\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eHow can you tell a cold start valve is defective?\u003c\/h3\u003e\n\n\u003cp\u003eThe cold start valve of the Bosch K-\/KE-Jetronic injects extra, finely atomized fuel into the intake manifold when starting the cold engine, enriching the mixture. It is controlled via the thermo-time switch, which limits the injection duration depending on temperature. If the valve fails, this additional cold-start enrichment is missing, and the cold engine starts poorly.\u003c\/p\u003e\n\n\u003cp\u003eThe valve is located on the intake manifold or intake plenum, bolted via a 2-hole flange. Fuel supply is via a union nut fitting, and it is controlled via a 2-pin connector.\u003c\/p\u003e\n\n\u003ch3\u003eFits the following vehicles\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eW201 (1987–1993, M103)\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e190 E 2.6\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eW124 (1987–1992, M103)\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e260 E\u003c\/li\u003e\n\u003cli\u003e260 E 4MATIC\u003c\/li\u003e\n\u003cli\u003e300 E\u003c\/li\u003e\n\u003cli\u003e300 E 4MATIC\u003c\/li\u003e\n\u003cli\u003e300 CE (C124)\u003c\/li\u003e\n\u003cli\u003e300 TE (S124)\u003c\/li\u003e\n\u003cli\u003e300 TE 4MATIC (S124)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eW126 (1987–1991, M103)\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e260 SE\u003c\/li\u003e\n\u003cli\u003e300 SE\u003c\/li\u003e\n\u003cli\u003e300 SEL\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eR107 (1987–1989, M103)\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e300 SL\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eFerrari (K-Jetronic)\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eTestarossa (1984–1991)\u003c\/li\u003e\n\u003cli\u003e512 TR (1991–1994)\u003c\/li\u003e\n\u003cli\u003e512 BBi (1981–1984)\u003c\/li\u003e\n\u003cli\u003e400i (1979–1985)\u003c\/li\u003e\n\u003cli\u003e412 (1985–1989)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003ePart numbers:\u003c\/strong\u003e 0280170412 (Bosch) · A 000 071 47 37 (Mercedes) · 000 071 47 37 (Mercedes). Price is per piece. Scope of delivery: see product photos.\u003c\/p\u003e\n\n\u003ch3\u003eWhich variant fits? Comparing the three Bosch numbers\u003c\/h3\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;margin:0 0 12px;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:8px 6px;border-bottom:2px solid #242833;\"\u003eBosch number\u003c\/th\u003e\n\u003cth style=\"text-align:left;padding:8px 6px;border-bottom:2px solid #242833;\"\u003eIdentifying feature\u003c\/th\u003e\n\u003cth style=\"text-align:left;padding:8px 6px;border-bottom:2px solid #242833;\"\u003eFits\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 6px;border-bottom:1px solid #e3e5e9;\"\u003e0280170403\u003cbr\u003e\u003ca href=\"\/en\/products\/bosch-kaltstartventil-0280170403-schwarz-mercedes-w124-w126-w116-r107-190e-300-e\"\u003eblack\u003c\/a\u003e · \u003ca href=\"\/en\/products\/bosch-kaltstartventil-0280170403-blau-kurz-mercedes-w124-w126-w116-r107-190-e-sl\"\u003eblue short\u003c\/a\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px;border-bottom:1px solid #e3e5e9;\"\u003eblack or blue-gray, \u003cstrong\u003eshort\u003c\/strong\u003e nozzle tube\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px;border-bottom:1px solid #e3e5e9;\"\u003eM102\/M103\/M116\/M117 up to 08\/1987\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f6f8;\"\u003e\n\u003ctd style=\"padding:8px 6px;border-bottom:1px solid #e3e5e9;\"\u003e\n\u003cstrong\u003e0280170412\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eblue (this listing)\u003c\/strong\u003e · \u003ca href=\"\/en\/products\/bosch-kaltstartventil-0280170412-grun-mercedes-w124-w126-w201-190e-300-e-ferrari\"\u003egreen\u003c\/a\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px;border-bottom:1px solid #e3e5e9;\"\u003eblue or green, \u003cstrong\u003elong\u003c\/strong\u003e nozzle tube\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px;border-bottom:1px solid #e3e5e9;\"\u003eM103 six-cylinder from 09\/1987, Ferrari K-Jetronic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 6px;border-bottom:1px solid #e3e5e9;\"\u003e0280170447\u003cbr\u003e\u003ca href=\"\/en\/products\/bosch-kaltstartventil-0280170447-gelb-mercedes-190e-w124-300-e-24-300-sl-24-r129\"\u003eyellow\u003c\/a\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px;border-bottom:1px solid #e3e5e9;\"\u003eyellow housing\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px;border-bottom:1px solid #e3e5e9;\"\u003e24V engines, 190 E 1.8, 200 E \/ 230 E\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cdiv style=\"background:#f5f6f8;border-left:4px solid #c69a3a;border-radius:8px;padding:14px 18px;margin:0 0 16px;\"\u003e\n\u003cp style=\"margin:0 0 6px;font-weight:700;\"\u003e⚠ Important: Compare the variant before buying\u003c\/p\u003e\n\u003cp style=\"margin:0 0 8px;\"\u003eBlue housing with long nozzle tube — the stamped marking 0280170412 is the decisive identifying feature. Technically identical to the green version 0280170412, the color difference only indicates the production period. Do not confuse it with the also-blue valve 0280170403 with a short nozzle tube. Compare the stamped marking as well as the Mercedes cross-reference number A 000 071 47 37 of your old part 1:1.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 4px;font-weight:600;\"\u003eDoes not fit:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEarly M103 up to 08\/1987 (use the predecessor valve 0280170403 with short nozzle tube)\u003c\/li\u003e\n\u003cli\u003e24V engines (300 E-24 and others use 0280170447)\u003c\/li\u003e\n\u003cli\u003eFacelift models from 6\/1993 (E 320 etc., M104 with HFM — no longer has a cold start valve)\u003c\/li\u003e\n\u003cli\u003eDiesel engines\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoes this part fit your car?\u003c\/strong\u003e Send us the VIN (chassis number) and model year – we'll check it for free: \u003ca href=\"tel:+491798991069\"\u003e+49 179 8991069\u003c\/a\u003e (Mon–Fri 8 am–6 pm) or via our \u003ca href=\"\/en\/pages\/contact?thema=Ersatzteil\"\u003econtact form\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\n\u003ch4\u003eWhat warranty is provided?\u003c\/h4\u003e\n\n\u003cp\u003e5-year warranty on this refurbished valve. If there is a problem, send it in – we will repair or replace it. In addition, there is a 60-day return policy and free shipping within Germany.\u003c\/p\u003e\n\n\u003ch4\u003eDoes this valve fit my vehicle?\u003c\/h4\u003e\n\n\u003cp\u003eFirst compare the stamped marking on your old valve: this variant has a blue housing with a long nozzle tube and the number 0280170412. If unsure, we'll check the fit using your VIN (chassis number) free of charge.\u003c\/p\u003e\n\n\u003ch4\u003eWhat is the difference between the blue and the green version of the 0280170412?\u003c\/h4\u003e\n\n\u003cp\u003eTechnically both are identical, the color difference only indicates the production period. However, do not confuse this valve with a long nozzle tube with the also-blue 0280170403, which has a short nozzle tube — the stamped marking 0280170412 is decisive.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eKFZTeile-Thot\u003c\/strong\u003e specializes in spare parts for classic Mercedes and classics – with in-house refurbishment for Bosch K-\/KE-Jetronic components.\u003c\/p\u003e","brand":"Bosch","offers":[{"title":"Default Title","offer_id":54872664998217,"sku":"60764","price":180.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0913\/5344\/8777\/files\/s-l1600_5ab4099e-f3b3-40af-88fd-81ed3d306a35.webp?v=1784305161"},{"product_id":"mercedes-w124-duoventil-heizungsventil-umwalzpumpe-bosch-a0018303784-392020028","title":"Mercedes W124 duo valve heater control valve auxiliary water pump Bosch A0018303784 0392020028","description":"\u003cdiv style=\"background:#242833;border-radius:8px;padding:18px 20px;margin:0 0 14px;color:#ffffff;\"\u003e\n\u003cp style=\"margin:0 0 8px;\"\u003e\u003cstrong style=\"color:#c69a3a;\"\u003eRefurbished genuine duo valve with auxiliary water pump – like new.\u003c\/strong\u003e Bosch\/Mercedes genuine part A0018303784 for the late W124: valve and integrated auxiliary water pump completely overhauled, all wear parts replaced, thoroughly cleaned – not an untested used part.\u003c\/p\u003e\n\u003cp style=\"margin:0;color:#cfd3dc;\"\u003eValve and auxiliary water pump completely overhauled  ·  Every valve individually tested  ·  \u003cstrong style=\"color:#c69a3a;\"\u003e5-year warranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003e\u003cspan style=\"display:inline-block;background:#f5f6f8;border:1px solid #c69a3a;border-radius:8px;padding:5px 12px;margin:2px 6px 2px 0;font-weight:600;\"\u003eLeak tightness ✓\u003c\/span\u003e\u003cspan style=\"display:inline-block;background:#f5f6f8;border:1px solid #c69a3a;border-radius:8px;padding:5px 12px;margin:2px 6px 2px 0;font-weight:600;\"\u003eFlow ✓\u003c\/span\u003e\u003cspan style=\"display:inline-block;background:#f5f6f8;border:1px solid #c69a3a;border-radius:8px;padding:5px 12px;margin:2px 6px 2px 0;font-weight:600;\"\u003eSwitching function ✓\u003c\/span\u003e\u003cbr\u003eEvery valve is tested individually after refurbishment: leak test, flow test and switching test of both valve circuits.\u003c\/p\u003e\n\n\u003cdiv style=\"background:#f5f6f8;border-left:4px solid #c69a3a;border-radius:8px;padding:14px 18px;margin:0 0 16px;\"\u003e\n\u003cp style=\"margin:0 0 6px;font-weight:700;\"\u003e5-year warranty on this refurbished part\u003c\/p\u003e\n\u003cp style=\"margin:0;\"\u003eShould a problem occur: send in the valve – we will repair or replace it. In addition, a 60-day return policy and free shipping within Germany apply.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c!--altteil-bonus--\u003e\u003cdiv style=\"background:#f5f6f8;border:2px solid #c69a3a;border-radius:8px;padding:14px 18px;margin:0 0 16px;\"\u003e\n\u003cp style=\"margin:0 0 6px;font-weight:700;\"\u003e♻ Old-part bonus: 35 € back for your old duo valve\u003c\/p\u003e\n\u003cp style=\"margin:0;\"\u003eBuy this valve at the regular price, install it at your leisure, and then send us your old duo valve with auxiliary water pump – even if it is defective, as long as it is complete. Upon receipt we will refund you \u003cstrong\u003e35 €\u003c\/strong\u003e to your payment method (15 € for an old valve without a pump). Simply send in the old part within 60 days on our \u003ca href=\"\/en\/pages\/ankauf#anmelden\"\u003ebuyback page\u003c\/a\u003e – all conditions are listed there as well.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;margin:0 0 16px;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:8px 6px;border-bottom:2px solid #242833;\"\u003eYour options\u003c\/th\u003e\n\u003cth style=\"text-align:left;padding:8px 6px;border-bottom:2px solid #242833;\"\u003eCondition\u003c\/th\u003e\n\u003cth style=\"text-align:left;padding:8px 6px;border-bottom:2px solid #242833;\"\u003eWarranty\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 6px;border-bottom:1px solid #e3e5e9;\"\u003eMercedes new part\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px;border-bottom:1px solid #e3e5e9;\"\u003eno longer available\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px;border-bottom:1px solid #e3e5e9;\"\u003e–\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 6px;border-bottom:1px solid #e3e5e9;\"\u003eUntested used part\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px;border-bottom:1px solid #e3e5e9;\"\u003eCondition of valve and pump unknown\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px;border-bottom:1px solid #e3e5e9;\"\u003enone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f6f8;\"\u003e\n\u003ctd style=\"padding:8px 6px;font-weight:700;\"\u003e\u003cstrong\u003eRefurbished genuine part (this listing)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px;font-weight:700;\"\u003ecompletely overhauled, all wear parts replaced, tested three times\u003c\/td\u003e\n\u003ctd style=\"padding:8px 6px;font-weight:700;\"\u003e5 years ✓\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eHow can you tell a duo valve with auxiliary water pump is defective?\u003c\/h3\u003e\n\n\u003cp\u003eOne side no longer heats, the heater stays hot permanently or fails completely – the cases vary and can affect one or both heating circuits. The duo valve sits in the engine bay on the bulkhead and, by pulsing, controls the heating water flow to both heater cores (side-independent temperature control, de-energized open = full heating output).\u003c\/p\u003e\n\n\u003cp\u003eTypical for the version \u003cstrong\u003ewith\u003c\/strong\u003e auxiliary water pump: when stationary and at low engine speed the heater does not get properly warm, while it works at higher engine speed – then the pump no longer delivers enough heating water.\u003c\/p\u003e\n\n\u003cp\u003eDetailed diagnostic instructions in the guide: \u003ca href=\"\/en\/blogs\/mercedes-tacho-reparatur\/w124-umwaelzpumpe-heizung-duoventil-pruefen\"\u003eW124 heater cold at idle? Check the auxiliary water pump on the duo valve\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch3\u003eFits the following Mercedes models\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eModel series 124 with automatic climate control or Tempmatic\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eW124 sedan\u003c\/li\u003e\n\u003cli\u003eS124 T-model\u003c\/li\u003e\n\u003cli\u003eC124 coupe\u003c\/li\u003e\n\u003cli\u003eA124 Cabriolet\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThis version with integrated auxiliary water pump was generally fitted from approx. 08\/1991. Vehicles with manual heating (Bowden cable) do not use this valve.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePart numbers:\u003c\/strong\u003e A0018303784 \/ 0018303784 (Mercedes) · 0392020028 (Bosch). Price applies per piece. Scope of delivery: see product images.\u003c\/p\u003e\n\n\u003cdiv style=\"background:#f5f6f8;border-left:4px solid #c69a3a;border-radius:8px;padding:14px 18px;margin:0 0 16px;\"\u003e\n\u003cp style=\"margin:0 0 6px;font-weight:700;\"\u003e⚠ Important: compare the part number before buying\u003c\/p\u003e\n\u003cp style=\"margin:0 0 8px;\"\u003eThe version \u003cstrong\u003ewithout\u003c\/strong\u003e auxiliary water pump carries the number A0008306584 and is a different part – as are other deviating numbers. The number on your installed valve is what counts, please compare 1:1. We also have the version without a pump in stock, refurbished: \u003ca href=\"\/en\/products\/mercedes-duoventil-heizungsventil-a0008306584-w124-s124-r129-300-e-e320-sl-bosch\"\u003eDuo valve A0008306584 without auxiliary water pump\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoes this part fit your car?\u003c\/strong\u003e Send us the VIN (chassis number) and model year – we'll check it for free: \u003ca href=\"tel:+491798991069\"\u003e+49 179 8991069\u003c\/a\u003e (Mon–Fri 8 am–6 pm) or via our \u003ca href=\"\/en\/pages\/contact?thema=Ersatzteil\"\u003econtact form\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\n\u003ch4\u003eWhat warranty is provided?\u003c\/h4\u003e\n\n\u003cp\u003e5-year warranty on this refurbished part. If there is a problem, simply send the valve in – we repair or replace it. In addition there is a 60-day return policy and free shipping within Germany.\u003c\/p\u003e\n\n\u003ch4\u003eHow does it differ from the valve without a pump?\u003c\/h4\u003e\n\n\u003cp\u003eThis version has an integrated electric auxiliary water pump that circulates the heating water when stationary and at low engine speed. It carries part number A0018303784 and was generally fitted from approx. 08\/1991. The version without a pump (A0008306584) is not identical in construction.\u003c\/p\u003e\n\n\u003ch4\u003eHow is the valve tested?\u003c\/h4\u003e\n\n\u003cp\u003eAfter refurbishment, every valve goes through our own in-house developed test procedure with three stations: leak test, flow test and switching test of both valve circuits. Only when all three are passed does the part go on sale.\u003c\/p\u003e\n\n\u003ch4\u003eWhy is there no new part?\u003c\/h4\u003e\n\n\u003cp\u003eMercedes no longer supplies this valve, and there is no aftermarket version on the market. That is why we fully refurbish genuine parts – “like new” condition.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eKFZTeile-Thot\u003c\/strong\u003e specializes in spare parts for classic Mercedes cars. Every duo valve from our refurbishment program goes through our own in-house developed test and refurbishment procedure.\u003c\/p\u003e","brand":"Bosch","offers":[{"title":"Default Title","offer_id":54984557658441,"sku":"60798","price":348.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0913\/5344\/8777\/files\/57_9581c1a6-d5b1-4602-8e4f-ff16df6fb848.png?v=1785733811"}],"url":"https:\/\/kfzteile-thot.de\/en\/collections\/meistverkauft.oembed","provider":"KFZTeile-Thot","version":"1.0","type":"link"}