Used Mercedes-Benz GLB Fuel Injection Pump

The Mercedes GLB (X247) launched in 2019 and runs as a single generation through the current production, so a 2020 and 2022 car sit within the same generational family — but fitment of the injection pump depends first and foremost on matching the engine code exactly, not the model year alone. Both cars must share the same engine code (found on your V5 or a VIN check) and fuel type for a used pump to be a viable candidate. Confirm the match with your breaker against both registrations before proceeding, as ancillary and mounting details can change quietly during a production run.

No — fuel injection pumps are entirely different between diesel and petrol engines, and the two are not interchangeable under any circumstances. Always confirm your fuel type and, more importantly, the exact engine code with your breaker, as this is the single most reliable way to identify the correct pump. Quoting your registration or VIN to the breaker will let them verify the engine code and source the right unit.

Trim level — whether your GLB is an SE, Sport, or AMG Line — has no effect on which fuel injection pump you need, as this is a mechanical part that follows the engine, not the badge or specification level. What matters is your engine code, fuel type, and gearbox type, all of which you can find on your V5 or through a VIN check. You may find cosmetic differences when buying from a dismantled AMG Line car (such as different exterior trim), but these are irrelevant to pump fitment.

The GLB X247 generation began in 2019, so in broad generational terms a 2019 car and a newer example are in the same family — however, year-to-year changes in ancillary fittings and mounting arrangements can occur within a generation without a formal facelift announcement. The safest approach is to match the engine code precisely and then confirm cross-year fitment with your breaker against both registrations, rather than assuming all X247 pumps are identical.

The 200d and 220d badges can indicate different states of tune or even different engine variants, which means the injection pump may not be the same part — engine codes are the definitive guide here, not the badging. Check the engine code on your V5 or via a VIN decoder and supply it directly to your breaker so they can verify whether the pumps are interchangeable. Never assume badge-to-badge compatibility on mechanical fuel system components.

Whether a used fuel injection pump requires ECU pairing, immobiliser coding, or programming after installation is something you must confirm with your fitting garage and your breaker before buying, as this varies by engine variant and can affect whether the vehicle starts at all. Findapart breakers can tell you the origin of the part, but the coding question sits with a Mercedes specialist or main dealer who can advise based on your specific registration and engine management system. Factor any programming costs into your budget before committing to the purchase.