Second Hand Mercedes-Benz A-Class Fuel Pump

The A-Class has run across four generations: W168 (1997–2004), W169 (2004–2012), W176 (2012–2018, facelift 2015), and W177 (2018–present), and these are entirely different platforms with different fuel systems, so a pump from one generation will not cross to another. Within a generation, fitment is driven primarily by engine code rather than the year badge on the car. Confirm the engine code from your V5 or a VIN check and give that to the breaker — it is the single most reliable way to match the pump correctly. Never assume cross-generation fitment without the breaker verifying against your registration.

Yes — fuel type is one of the most important factors for pump fitment, because petrol and diesel systems use fundamentally different pump designs and are not interchangeable. On the A-Class, diesel variants (such as those with CDI engine codes) use a high-pressure injection pump as part of the fuel delivery system, while petrol variants use an in-tank low-pressure pump. Always specify your fuel type and engine code when requesting quotes from a breaker. Fitting the wrong type of pump will mean the car will not run and could cause damage.

No — trim level has no bearing on fuel pump fitment for the A-Class; SE, Sport, AMG Line and full AMG variants running the same engine code will use the same pump. What matters is the engine code, fuel type, and where applicable the gearbox type, not the badge or interior specification. When you contact a breaker, skip the trim level and lead with your engine code and fuel type instead. You may find cosmetic or minor ancillary differences between stripped and higher-spec cars, but these do not affect the pump itself.

The W176 ran from 2012 to 2018 with a facelift in 2015, and while the core platform remained the same across that span, ancillary and mounting changes can occur mid-production without a full model change. If both cars share the same engine code and fuel type, there is a reasonable chance of compatibility, but you should confirm with the breaker against your specific registration before buying. The breaker can cross-reference the part numbers to check whether the pre- and post-facelift pumps are identical. Do not assume fitment across the facelift boundary without that check.

Gearbox type can be a relevant fitment factor for fuel pumps on some engine and platform combinations, so it is worth mentioning to the breaker alongside your engine code and fuel type. In many cases the pump itself is unaffected by gearbox choice, but there are production variants where associated components differ, and the breaker will need your full vehicle details to be certain. Providing your registration number allows the breaker to run a VIN check and confirm the exact specification. Always let the breaker verify rather than assuming gearbox type is irrelevant.

The most reliable way to match a used pump to your W176 is to share your engine code (found on your V5C or via a VIN check) and your fuel type with each breaker quoting you. Engine code is the primary fitment determinant — two W176 cars with different engine codes may require different pumps even if they look identical from the outside. If the breaker can provide the part number from the donor vehicle, you or they can cross-reference it against your car's part number to confirm a match. ECU pairing or immobiliser coding requirements are something to raise directly with the breaker for your specific vehicle, as this varies and is not something to take as a given.