{"product_id":"mercedes-zundschaltgerat-tsz-k-0227051024-a0005458432-w116-r107-c107-w114-350-sl","title":"Mercedes ignition switching unit TSZ-k 0227051024 A0005458432 W116 R107 C107 W114 350 SL","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;\"\u003eIgnition switching unit of the contact-controlled transistor ignition TSZ-k, Bosch no. 0 227 051 024 \/ Mercedes no. A 000 545 84 32, for the W114, W116 and R107\/C107.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0;color:#cfd3dc;\"\u003eGenuine removed part  ·  Security lacquer intact – not yet opened  ·  \u003cstrong style=\"color:#c69a3a;\"\u003eFits W114, W116, R107\/C107\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;\"\u003eUsed removed part, untested. The aluminium die-cast housing is matte and oxidised throughout, with dark spots and storage dust; no cracks or deformation are visible. The cover sits firmly with a surrounding seal and four yellow-zinc-plated nuts; the red security lacquer on one nut is intact – an indication that the unit has not been opened before. The base plate shows clear scratch and abrasion marks; all three mounting lugs are undamaged. The contacts of the 4-pin connector and the coaxial centre pin are slightly tarnished, but straight and free of verdigris; the coaxial outer contact is slightly corroded on the inside. No functional test was carried out.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"margin:22px 0 8px;\"\u003eFunction and location\u003c\/h3\u003e\n\u003cp\u003eThe TSZ-k switching unit takes the trigger signal from the breaker contact in the distributor and switches the ignition coil's primary current electronically. As a result, the breaker contact only carries a control current, which significantly reduces contact burn and allows a stronger ignition spark.\u003c\/p\u003e\n\u003cp\u003eThe unit is installed in the engine bay on the wheel arch or bulkhead, connected via a 4-pin shielded round connector and a single coaxial connection to the ignition coil.\u003c\/p\u003e\n\n\u003ch3 style=\"margin:22px 0 8px;\"\u003eHow can you tell an ignition switching unit is defective?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEngine does not start, or there is no ignition spark\u003c\/li\u003e\n\u003cli\u003eRough running engine, misfires, or ignition faults\u003c\/li\u003e\n\u003cli\u003eThe breaker contact in the distributor burns out unusually quickly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"margin:22px 0 8px;\"\u003eCompatible vehicles\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eW114:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e280 E\u003c\/li\u003e\n\u003cli\u003e280 CE\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eW116:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e280 SE, SEL\u003c\/li\u003e\n\u003cli\u003e350 SE, SEL\u003c\/li\u003e\n\u003cli\u003e450 SE\u003c\/li\u003e\n\u003cli\u003e450 SE, SEL\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eR107 \/ C107:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e350 SL\u003c\/li\u003e\n\u003cli\u003e450 SL\u003c\/li\u003e\n\u003cli\u003e350 SLC\u003c\/li\u003e\n\u003cli\u003e450 SLC\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"margin:22px 0 8px;\"\u003ePart numbers\u003c\/h3\u003e\n\u003cp\u003eBosch number 0 227 051 024, Mercedes-Benz part number A 000 545 84 32.\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 6px;\"\u003eNot to be confused with Bosch 0 227 100 001 (Mercedes A 000 545 76 32) – that is the contactless TSZ-i with inductive sensor. The connectors do fit, but the units are not functionally interchangeable; the engine will not run with it.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 4px;font-weight:700;\"\u003eNot identical to:\u003c\/p\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003eBosch 0 227 051 014 (A 000 545 39 32) – earlier version of the same family with cooling fins\u003c\/li\u003e\n\u003cli\u003eBosch 0 227 051 015 (A 000 545 41 32) – for the W108, W111, W113, and early W114\/W115\u003c\/li\u003e\n\u003cli\u003eNot a D-Jetronic injection control unit of the 0 280 000 xxx series – significantly larger housing\u003c\/li\u003e\n\u003cli\u003eScope of delivery excludes mating connector, cable, and bracket\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\"\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\n\u003ch3 style=\"margin:22px 0 8px;\"\u003eFAQ\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 4px;\"\u003e\u003cstrong\u003eIs the ignition switching unit tested?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eNo, this is a used removed part without a functional test. The red security lacquer on one housing nut is intact – an indication that the unit has not been opened before.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 4px;\"\u003e\u003cstrong\u003eHow does the TSZ-k differ from the TSZ-i?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eThe TSZ-i (Bosch 0 227 100 001, Mercedes A 000 545 76 32) is a contactless version with an inductive sensor. The connectors do fit this unit, but the two systems are not functionally interchangeable.\u003c\/p\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 switching unit itself; mating connector, cable, and bracket are not included. For further details, see the product photos.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eRelated categories:\u003c\/strong\u003e \u003ca href=\"\/en\/collections\/w116\"\u003eW116\u003c\/a\u003e, \u003ca href=\"\/en\/collections\/w107-r107\"\u003eW107 \/ R107\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":54960896868681,"sku":"90055","price":189.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0913\/5344\/8777\/files\/57_9c48e842-bb8b-4160-ac6a-391a171e6435.jpg?v=1787304265","url":"https:\/\/kfzteile-thot.de\/en\/products\/mercedes-zundschaltgerat-tsz-k-0227051024-a0005458432-w116-r107-c107-w114-350-sl","provider":"KFZTeile-Thot","version":"1.0","type":"link"}