Mercedes-Benz B-Class Coil Spring Replacement Parts

Yes, the B-Class uses coil springs as part of its suspension setup on both the front and rear axles across all generations, so this is a genuine part to source from a breaker. The front axle uses a MacPherson strut arrangement with a coil spring over the damper, and the rear also uses coil springs as part of its torsion beam or multi-link setup depending on the generation. You are looking for the right part.

These are two distinct generations — the W245 ran from 2005 to 2011, and the W246 ran from 2011 to 2018 — and the two generations use different suspension geometry, so springs from one will not cross over to the other. Always source a spring that matches your specific generation, which you can confirm from your registration or the chassis plate. Never assume a spring from the earlier car will drop straight in.

Trim level alone does not change the fundamental spring specification on the B-Class — an SE and an AMG Line with the same engine and generation share the same basic suspension architecture. However, AMG Line and Sport variants may have been fitted with lowered or uprated suspension from the factory, which could mean a different spring rate or ride height, so you should confirm the exact spring fitted to your car with the breaker against your registration rather than assuming trim makes no difference. The breaker can check this before supplying the part.

The W246 received a facelift around 2014-2015, but both pre-facelift and post-facelift cars sit within the same generation and share the same basic suspension design. In many cases the coil spring will interchange across the facelift boundary, but whether a specific spring is identical depends on factors such as engine variant, and this is best confirmed with the breaker against both registrations before ordering. Do not assume fitment without that check.

Engine size can influence suspension specification on the B-Class, as heavier or more powerful engines may be paired with uprated springs to suit the different front axle loading. For this reason, it is worth telling the breaker your exact engine code or displacement alongside your registration when requesting a spring, rather than treating all B-Class springs as interchangeable. The breaker can cross-reference this against their donor vehicle to give you the best chance of a correct match.

The 4MATIC all-wheel-drive variants of the W246 have a different rear suspension arrangement compared to the standard front-wheel-drive models, so rear springs from a 4MATIC and a non-4MATIC car are not interchangeable. Between front-wheel-drive variants such as a B180 and a B200, the springs may share fitment but the different engine and vehicle weights mean you should still confirm with the breaker using both registrations before buying. Never mix 4MATIC and non-4MATIC running gear without expert verification.