{"product_id":"mercedes-hella-relais-blau-12v-30a-0015427591-hella-099856-w124-w126-w201","title":"Mercedes Hella relay blue 12V 30A 0015427591 Hella 099856 W124 W126 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;\"\u003eHella control relay 12V\/30A in blue aluminum housing, part number 0015427591 (Hella 099856) – for Mercedes W123, W126, W201, W124, R107 \u0026amp; R129.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0;color:#cfd3dc;\"\u003eProfessionally refurbished  ·  Function-tested  ·  \u003cstrong style=\"color:#c69a3a;\"\u003eFor high-current loads such as fuel pump \u0026amp; main fan\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin:0 0 16px;\"\u003e\n\u003cspan style=\"display:inline-block;background:#f5f6f8;border:1px solid #e3e5e9;border-radius:999px;padding:5px 12px;margin:0 6px 6px 0;font-size:14px;\"\u003e✓ Function tested\u003c\/span\u003e\n\u003c\/p\u003e\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;\"\u003eThe relay was professionally refurbished, function-tested, and is fully operational.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:22px 0 8px;\"\u003eFunction and location\u003c\/h3\u003e\n\u003cp\u003eThis Hella control relay with 12V\/30A is a standard switching relay for high-current loads such as fuel pump, main fan, or horn. It operates with the 30 \/ 85 \/ 86 \/ 87 wiring diagram (changeover contact).\u003c\/p\u003e\n\u003cp\u003eThe installation location is the relay box in the interior, behind the passenger footwell or under the dashboard, depending on the model series.\u003c\/p\u003e\n\u003ch3 style=\"margin:22px 0 8px;\"\u003eUsed part or refurbished part?\u003c\/h3\u003e\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;\"\u003eStandard used part\u003c\/th\u003e\n\u003cth style=\"text-align:left;padding:8px 0;border-bottom:1px solid #e3e5e9;\"\u003eThis refurbished part\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 10px 8px 0;border-bottom:1px solid #e3e5e9;vertical-align:top;\"\u003eAge unknown, fitted untested\u003c\/td\u003e\n\u003ctd style=\"padding:8px 0;border-bottom:1px solid #e3e5e9;vertical-align:top;\"\u003eProfessionally refurbished and function-tested\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 style=\"margin:22px 0 8px;\"\u003eHow can you tell a relay is faulty?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThe fuel pump no longer switches on, the vehicle doesn't start or starts poorly\u003c\/li\u003e\n\u003cli\u003eThe main fan no longer starts up, the engine tends to overheat\u003c\/li\u003e\n\u003cli\u003eThe horn stays silent or only works sporadically\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin:22px 0 8px;\"\u003eCompatible vehicles\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eW123 (1976–1986):\u003c\/strong\u003e Sedan, estate (S123), coupé (C123)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eW126 S-Class (1979–1991):\u003c\/strong\u003e Sedan and SEC coupé C126\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eW201 190 series (1982–1993):\u003c\/strong\u003e all variants\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eW124 E-Class (1984–1995):\u003c\/strong\u003e Pre-facelift II: 200 E \/ 230 E \/ 260 E \/ 300 E \/ 300 D \/ 300 TE \/ 300 CE \/ 500 E. Post-facelift II: E 200 \/ E 220 \/ E 280 \/ E 320 \/ E 420 \/ E 500\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eR107 SL\/SLC (1971–1989):\u003c\/strong\u003e 280 SL to 560 SL\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eR129 SL roadster (1989–2001):\u003c\/strong\u003e 300 SL \/ 500 SL \/ SL 280 \/ SL 320 \/ SL 500 \/ SL 600\u003c\/p\u003e\n\u003cp\u003eThe Mercedes part number of this relay is 0015427591, the corresponding Hella number is 099856. It belongs to the Hella size range 001 542, under which further 12V\/30A relays with different wiring diagrams and end numbers are offered.\u003c\/p\u003e\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 6px;\"\u003eThe exact end number 0015427591 is critical. Hella sells various 12V\/30A relays of the 001 542 size range with different wiring diagrams (normally-open 87, changeover 87\/87a) and Mercedes end numbers. Please compare your old relay's number 1:1.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 4px;font-weight:700;\"\u003eDoes not fit:\u003c\/p\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003eRelays with other current ratings (10A, 15A, 40A)\u003c\/li\u003e\n\u003cli\u003eRelays with changeover contact 87a (different pinout)\u003c\/li\u003e\n\u003cli\u003eUSA\/Canada versions with different wiring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\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\"\u003e0179 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\u003ch3 style=\"margin:22px 0 8px;\"\u003eFAQ\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 4px;\"\u003e\u003cstrong\u003eWhat's included in the scope of delivery?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eThe exact scope of delivery is shown in the product photos.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 4px;\"\u003e\u003cstrong\u003eHow does this relay differ from similar versions?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eThe exact end number 0015427591 is critical. Hella offers further relays in the 001 542 size range with different wiring diagrams (e.g. normally-open 87 instead of changeover 87\/87a) – please compare with the old part before buying.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 4px;\"\u003e\u003cstrong\u003eCan I return the part if it doesn't fit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eYes, a 60-day return policy and free shipping within Germany apply.\u003c\/p\u003e\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 \u0026amp; \u003ca href=\"\/en\/collections\/w126\"\u003eW126\u003c\/a\u003e\u003c\/p\u003e\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":"Hella","offers":[{"title":"Default Title","offer_id":54850917400905,"sku":"60616","price":19.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0913\/5344\/8777\/files\/57_5ff2d974-58cd-4e95-81a2-191b41265f12.jpg?v=1787303937","url":"https:\/\/kfzteile-thot.de\/en\/products\/mercedes-hella-relais-blau-12v-30a-0015427591-hella-099856-w124-w126-w201","provider":"KFZTeile-Thot","version":"1.0","type":"link"}