Mercedes-Benz S-Class Fuel Injector Replacement Parts
Need a used Mercedes-Benz S-Class fuel injector? Request a free quote from UK vehicle dismantlers and compare offers direct.
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Buying a used Mercedes-Benz S-Class fuel injector: what matters
Fitment on a used fuel injector varies by vehicle, so a bit of detail goes a long way. Our request form covers what breakers need to know, so every quote you get back is for the correct part:
- State whether it's petrol or diesel
- State the engine code if known
Other used Mercedes-Benz S-Class parts
- Used Mercedes-Benz S-Class Fuel Injection Pump
- Used Mercedes-Benz S-Class Clutch
- Used Mercedes-Benz S-Class Gearbox
- Used Mercedes-Benz S-Class Drive Shaft
- Used Mercedes-Benz S-Class Rear Light
- Used Mercedes-Benz S-Class Wing
- Used Mercedes-Benz S-Class Subframe
- Used Mercedes-Benz S-Class Heater Motor
- Used Mercedes-Benz S-Class Fog Light
- Used Mercedes-Benz S-Class Scuttle Panel
- Used Mercedes-Benz S-Class Brake
- Used Mercedes-Benz S-Class Bonnet
Used fuel injector for other Mercedes-Benz models
Fitment questions
Do fuel injectors exist on all Mercedes-Benz S-Class variants, or only certain engines?
Fuel injectors exist on virtually all S-Class variants, but the type differs significantly by fuel system: petrol engines use direct or port injection, while diesel engines use high-pressure common-rail injectors — these are completely different parts and will not interchange. You must match the injector to your exact fuel type and engine code, not just the S-Class badge. If you're unsure whether your car is petrol or diesel, check the V5C or a VIN lookup before approaching a breaker.
Will a fuel injector from a 2005 W220 S-Class fit my 2008 W221 S-Class?
The W220 ran from 1998 to 2005, and the W221 replaced it from 2005 to 2013 — these are entirely different generations with different engine families, fuel rail designs, and injector fitments, so a W220 injector will not fit a W221. Even within each generation, fitment is determined by the engine code stamped on your V5C or revealed by a VIN check, not the model year alone. Always supply your engine code to the breaker so they can confirm an exact match.
Does it matter whether my W222 S-Class is an S350d or an S500 when buying a used fuel injector?
Yes, this matters enormously — the S350d is a diesel and uses a completely different high-pressure common-rail injector to the S500's petrol direct-injection unit, and the two are not interchangeable under any circumstances. Beyond fuel type, different petrol variants within the W222 (2013–2020, facelift 2017) also carry different engine codes — an M276 3.0 V6 injector is not the same as an M278 4.7 V8 injector, for example. Give the breaker your full engine code, which you'll find on your V5C or via a VIN check, to ensure the correct part is sourced.
Does the trim level affect which fuel injector I need — for example, does an S-Class AMG Line or SE use a different injector to an AMG S63?
Trim level does not affect injector fitment — an AMG Line or SE badge is a cosmetic and equipment designation, not an engine change. What does determine fitment is the engine code: if an AMG S63 (W222) shares the same M177 4.0 biturbo V8 as another variant, the injectors will be the same part. However, because some AMG engines can have specific fuelling calibrations, confirm with the breaker against your registration before purchasing.
Can I use an injector from a pre-facelift W221 on a post-facelift W221 S-Class?
The W221 ran from 2005 to 2013 with a facelift in 2009, and while many engines carried over, ancillary and mounting details can change across a facelift year. The engine code is the critical starting point — if both cars share the same engine code, there is a strong chance the injector is the same part, but confirm this with the breaker against your specific registration before buying. Do not assume pre- and post-facelift injectors interchange without that check.
Do I need to worry about ECU coding or immobiliser pairing when fitting a used fuel injector to my S-Class?
Modern Mercedes-Benz engines, particularly common-rail diesel units and direct-injection petrol engines from the W221 and W222 generations, can require injector coding to the ECU after fitting — each injector may carry a calibration code that must be programmed in for correct fuelling. Whether your specific engine requires this, and whether a used injector can be successfully coded to your car, is something you must confirm with the breaker and your fitting garage before purchase. This is not a step to overlook, as incorrect coding can affect engine performance and fuel economy.