Mercedes-Benz B-Class Differential Replacement Parts

Both years fall within the W246 generation (2011–2018, facelift 2014), so they share the same basic platform, but whether the differential itself crosses the pre- and post-facelift boundary without issue depends on your exact engine code — check your V5 or run a VIN check to confirm it. The engine code is the single most important detail here, as mechanical components follow the engine spec rather than the model year badge. Give that code to the breaker and ask them to match it directly against the donor vehicle's spec.

Yes, gearbox type matters significantly — a B-Class fitted with a 7G-DCT dual-clutch automatic will require a different differential setup than one with a manual gearbox, and mixing them is not straightforward. Always tell the breaker whether your car is manual or automatic before agreeing a price. Your V5 and a VIN check will confirm the gearbox code alongside the engine code, and both details should be supplied together.

The badge name matters less than the engine code behind it, because Mercedes has used different engines under the same badge at different points in the W246's production run (2011–2018). A B200 from 2012 may carry a different engine code to a B200 from 2016, and those codes determine differential compatibility. Pull the engine code from your V5 or a VIN check and give it to the breaker — that single detail will do more to confirm fitment than the badge ever will.

No, trim level does not affect differential fitment on the B-Class — Sport, SE, and AMG Line are equipment and cosmetic packages rather than mechanical variants. The differential follows the engine code, fuel type, and gearbox type, none of which change based on trim. Focus on supplying those mechanical details to the breaker and don't be concerned about matching trim levels.

Fuel type is one of the key fitment factors for a differential, so a diesel unit and a petrol unit from the same model year are not automatically interchangeable even if they share a generation. The engine codes will differ between diesel and petrol variants, and it is the engine code that determines compatibility. Confirm the engine code from your V5 with the breaker and make sure they are matching it against the correct fuel-type donor vehicle.

The W246 generation ran from 2011 to 2018 with a facelift in 2014, and very early 2011 production cars can sometimes differ in ancillary or mounting details compared to later build dates. Whether those differences affect differential fitment in your specific case is something to confirm with the breaker against your registration, as mid-production changes of that kind are not straightforward to state as fact. Provide your engine code, gearbox type, and full registration so the breaker can check the build details directly.