Used Mercedes-Benz B-Class Rear Cross Member

No — the W245 (2005–2011) and W246 (2012–2018) are entirely different generations with different platforms, so the rear cross member is not a straight swap between them. The W246 facelift arrived in 2014 but both pre- and post-facelift W246 cars share the same platform; confirm with the breaker whether those specific pressings interchange across that 2014 boundary. Always quote your registration to the breaker so they can verify the exact part against your car.

Both years sit within the W246 generation (2012–2018), so the platform is the same, but the 2014 facelift may have brought pressing changes to the rear structure — confirm with the breaker against both registrations before buying. The B-Class is a five-door hatch throughout the W246 run, so body style is not a variable here. Never assume fitment without the breaker checking part numbers against your reg.

Trim level does not affect the rear cross member; SE, Sport, and AMG Line all share the same body structure within the same generation. You may find cosmetic underbody trim or diffuser details differ between grades, but the cross member itself is the same pressing. Confirm with the breaker using your registration to be certain.

The W245 ran from 2005 to 2011 as a single generation, so cars within that range share the same platform and body style. Mid-generation pressing changes are possible, so rather than assuming any W245 part fits yours, have the breaker check both registrations against their stock. Quoting your exact reg is the safest approach.

No — whether your W246 has a petrol, diesel, or electric (B 250 e) powertrain, the rear cross member is determined by the body platform, not the engine. The B-Class W246 is a five-door hatch throughout, so there is no body-style variation to worry about in this generation either. Confirm with the breaker using your registration as a final check.

Give the breaker your full registration number and, if you know it, the chassis generation — W245 for a 2005–2011 car or W246 for a 2012–2018 car. Engine and trim level will not change the part, but the breaker may want to cross-reference part numbers if the donor car is close to the 2011–2012 generation changeover or the 2014 W246 facelift boundary. The more detail you provide upfront, the quicker they can confirm a match.