Mercedes-Benz S-Class Fuel Injection Pump Replacement Parts
Get quotes for a used or replacement Mercedes-Benz S-Class fuel injection pump. Genuine second hand parts from UK vehicle dismantlers - free request, breakers with stock reply direct.
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Choosing the right used Mercedes-Benz S-Class fuel injection pump
Used fuel injection pumps vary between vehicles - and whether you call it used, second hand or a replacement, matching the right one matters. These are the details breakers need to match the right part to your car - our request form asks them so you only hear from suppliers with the correct part:
- State the engine code
Other used Mercedes-Benz S-Class parts
- Used Mercedes-Benz S-Class Differential
- Used Mercedes-Benz S-Class Cylinder Head
- Used Mercedes-Benz S-Class Gearbox
- Used Mercedes-Benz S-Class AC Compressor
- Used Mercedes-Benz S-Class Quarter Panel
- Used Mercedes-Benz S-Class Front Grille
- Used Mercedes-Benz S-Class Wheel Hub
- Used Mercedes-Benz S-Class Wiper Motor
- Used Mercedes-Benz S-Class Parcel Shelf
- Used Mercedes-Benz S-Class Window Winder Motor
- Used Mercedes-Benz S-Class Front Bumper
- Used Mercedes-Benz S-Class Scuttle Panel
Used fuel injection pump for other Mercedes-Benz models
Fitment questions
Will a fuel injection pump from a 2010 S-Class fit my 2014 S-Class?
This spans the W221 generation (2005–2013) and the W222 generation (2013 onwards), which are distinct platforms with different engines, so a pump from a 2010 W221 will not cross over to a 2014 W222 as a straightforward swap. The engine code is the critical detail here — confirm your exact engine code from your V5 or a VIN check and supply it to the breaker, as fitment follows the engine rather than the model year alone. Always confirm interchange with the breaker against your registration before purchasing.
Does the fuel injection pump from an S350 fit an S500 of the same year?
No — the S350 and S500 use entirely different engines (a diesel or petrol straight-six versus a V8 petrol in most generations), so the injection pumps are not interchangeable regardless of the year being the same. The badge and trim level make no difference to pump fitment; what matters is the engine code, which will differ completely between these two variants. Get your engine code from your V5 or a VIN check and give it to the breaker so they can match the correct unit.
Does trim level affect which fuel injection pump I need — for example, does an AMG Line S-Class need a different pump to a standard SE?
Trim level does not affect the fuel injection pump — AMG Line, SE, and other trim designations on the S-Class refer to cosmetic and equipment differences such as body styling, interior materials, and alloy wheel designs, none of which influence the pump specification. What determines fitment is the engine code, fuel type (diesel or petrol), and gearbox type, all of which can be identical across trim levels. Confirm your engine code from the V5 and supply it to the breaker to ensure a correct match.
I have a W221 S-Class — will any W221 fuel injection pump fit mine?
The W221 generation ran from 2005 to 2013 with a facelift in 2009, and while many mechanical components are shared across that run, mid-production ancillary and mounting changes mean you should not assume any W221 pump will simply bolt on without further checks. The engine code is the most important detail, as different engines within the W221 range — such as the diesel OM642 or various petrol units — each require their own specific pump. Confirm the exact engine code from your V5 and ask the breaker to verify compatibility against your registration before buying.
Can I use a petrol S-Class fuel injection pump in a diesel S-Class?
No — petrol and diesel fuel systems are fundamentally different; a petrol high-pressure pump and a diesel injection pump are entirely incompatible and cannot be substituted for one another under any circumstances. Always confirm your fuel type alongside your engine code when contacting a breaker, as mixing these up would result in a completely non-functional part. Supply your registration and engine code to the breaker so the correct unit is identified with certainty.
Do I need to worry about ECU pairing when buying a used fuel injection pump for my S-Class?
This is a genuine concern with modern Mercedes-Benz injection systems, as some pumps or associated control units may be coded or paired to the original vehicle, which can cause immobiliser or start issues if the replacement is not correctly matched or recoded. This is not something we can confirm or rule out here — you must raise it directly with the breaker against your specific registration and engine code, and factor in potential coding costs with a specialist. It is an important question to ask before purchase, not after.