Mercedes-Benz B-Class Suspension Leg Replacement Parts

Yes, the B-Class is a front-wheel-drive car and uses MacPherson strut suspension at the front, so it does have front suspension legs (also called strut assemblies) on both the nearside and offside. The rear suspension uses a torsion beam arrangement, so there are no traditional suspension legs at the rear. When searching for a used part, make sure you specify front NS or front OS so the breaker can supply the correct side.

The W245 and W246 are entirely different generations with different platform dimensions, so the suspension legs are not interchangeable between them. Always confirm the generation of the car you are buying from by checking the registration against the breaker's donor vehicle details. Never assume a part from one generation will bolt onto another without verification.

The W246 ran from 2012 to 2018, with a facelift introduced in 2015 that was primarily cosmetic. For suspension legs, the generation boundary is the important one, but whether a pre-facelift and post-facelift W246 leg crosses over without issue is something you should confirm with the breaker against your exact registration, as subtle running gear updates can occur mid-generation. In many cases they are the same, but a good breaker will check the VIN to be certain.

Engine size can influence suspension specification on some cars, but on the B-Class the front suspension leg fitment is primarily determined by the generation — W245 or W246 — rather than whether you have a smaller 1.5 or 1.6 diesel versus a larger 2.0 petrol or diesel. That said, if your car has any sport or AMG Line suspension, confirm with the breaker whether the spring and damper rates differ, as those variants may use a different setup. Always quote your registration to the breaker so they can match the correct part.

Trim level on its own does not determine which suspension leg you need, as SE, Sport, and AMG Line are largely cosmetic distinctions on the B-Class rather than fundamental engineering differences. However, AMG Line and Sport models may have been fitted with lowered or firmer suspension, so while the physical leg may look similar, spring and damper specifications could vary — confirm this with the breaker against your registration rather than assuming any W246 leg will be a straight swap. The breaker will be able to cross-reference your VIN to identify the correct specification.

Yes, nearside (NS, driver's left, kerb side) and offside (OS, driver's right) suspension legs are handed and are not interchangeable. Always tell the breaker which side you need before they pull the part, and if possible confirm by inspecting your existing leg to be sure you have the correct side identified. Ordering the wrong side from a breaker's dismantled car is an easy and avoidable mistake.