Cheap Mercedes-Benz B-Class Exhaust Manifold

On B-Class variants fitted with turbocharged engines — which covers the vast majority of the range from the W245 (2005–2011) onwards and essentially all W246 (2012–2018) and W247 (2019–present) models — the exhaust manifold is typically integrated into the turbocharger housing or the cylinder head assembly rather than being a separate bolt-on component, which is common on modern direct-injection engines. On the earlier W245 with naturally aspirated petrol engines (such as the B170 and B200 non-turbo), a more conventional exhaust manifold exists as a distinct part. If you're looking for a used unit, knowing whether your engine is turbocharged or naturally aspirated is the first step before searching.

No — the W245 and W246 are different generations with different engine families, different mounting points, and different emissions configurations, so parts do not cross over between them. Even if two engines share a similar displacement figure, the manifold geometry, sensor positions, and turbocharger integration will differ. Always search by engine code and generation, and confirm with the breaker against your registration plate to be certain.

Trim level — whether SE, Sport, AMG Line, or any other — does not affect the exhaust manifold fitment on the B-Class; what matters is the engine code and model year. A B200 SE and a B200 AMG Line from the same year will share the same manifold provided the engine code matches. When buying from a breaker, focus on the engine code rather than the trim badge, and ignore any trim-related differences.

Engine code matters far more than displacement alone on the B-Class, because Mercedes used several different 2.0-litre and 1.6-litre units across generations with different turbocharger setups, manifold designs, and emissions hardware. For example, a 2.0-litre unit in a pre-facelift W246 may carry a different engine code to one in the post-2014 facelift W246, and the parts may not interchange. Always give the breaker your full engine code (found on your V5C or stamped in the engine bay) rather than just the size.

The W246 received a facelift in 2014, and while many running gear components carried over, some engine variants were updated around that time, which can affect manifold and emissions hardware compatibility. Whether a pre-facelift (2012–2014) and post-facelift (2014–2018) manifold are interchangeable depends specifically on your engine code and whether any changes were made to that unit at the facelift. Confirm with the breaker against your registration, as this is exactly the kind of boundary where visual similarity can mask a fitment mismatch.

The manifold itself sits upstream of the DPF, but on diesel B-Class models the manifold, turbocharger, and emissions hardware are closely related in terms of fitment and year-specific design — particularly around the Euro 5 to Euro 6 transition that affected diesel cars from around 2015 onwards. Using a manifold from the wrong emissions era could affect how the downstream emissions system functions and potentially cause MOT issues. Specific questions about whether the catalytic converter or DPF hardware interchanges alongside the manifold are strong confirm-with-the-breaker territory — give them your registration and engine code before buying.