Second Hand Mercedes-Benz GLB Differential

The GLB (X247) has been produced from 2019 onwards with a facelift arriving in 2023, so you are working within a single generation throughout. Whether a differential from a pre-2023 car crosses cleanly to a post-facelift car depends on engine code, gearbox type, and whether any ancillary or mounting changes were introduced at that facelift point — confirm this directly with the breaker against your exact registration. The engine code (found on your V5 or via a VIN check) is the single most useful detail you can supply to the breaker.

No — these use entirely different drivetrains, the 200 being a petrol unit and the 220d a diesel, and the differentials are matched to the specific engine and gearbox combination rather than the GLB badge itself. Always match on engine code first, then confirm gearbox type (manual or automatic), as these will differ between the two variants. Supply your engine code to the breaker rather than just the model name to avoid an expensive mismatch.

Trim level does not affect differential fitment on the GLB — AMG Line, Sport, and SE are cosmetic and equipment packages rather than mechanical variations, so the drivetrain components are determined by engine code, fuel type, and gearbox rather than which trim your car carries. You may find that the donor car looks slightly different inside or carries different alloys, but that has no bearing on whether the differential will suit your vehicle. Match on engine code and gearbox type, not on trim badge.

These are different engine codes producing different power outputs and the 4MATIC system is calibrated accordingly, so a straight swap between the 250 and 200 is not guaranteed even though both are 4MATIC petrols within the same X247 generation. Confirm the exact engine codes for both the donor and recipient vehicle with the breaker, as internal ratios and ancillary connections may differ. Never assume two 4MATIC cars share the same differential purely because they carry the same badge.

The 2019 original and the 2024 post-facelift model are both part of the same X247 generation, which is helpful, but the 2023 facelift is a known boundary and whether ancillary or mounting details changed around that point is something you need to confirm with the breaker against both registrations. Matching engine codes and gearbox types between the two cars is the essential starting point before worrying about model year. Route the final compatibility check to the breaker, who can cross-reference the part numbers directly.

Whether the differential or associated electronic components require any ECU pairing or immobiliser coding after fitting is something you must confirm with the breaker and your fitting garage rather than assume either way, as this can vary by specification and we cannot state it as fact here. It is worth raising the question before purchase so you can factor any additional setup costs into your decision. A specialist Mercedes-Benz independent or main dealer will be able to advise on whether coding is required for your specific vehicle.