Second Hand Mercedes-Benz GLS Exhaust Manifold

Yes, all petrol-engined GLS variants (including the GLS 400, GLS 450, and GLS 580 with their turbocharged V6 and V8 units) have exhaust manifolds, and the diesel GLS 350d and GLS 400d also carry exhaust manifolds as part of their turbocharged diesel setups. Because every GLS engine is turbocharged, the exhaust manifold is a standard fitment across the range. There is no naturally aspirated GLS variant where this part would be absent, so you are looking for the right part — just make sure you match it to your exact engine code.

These are fundamentally different generations with different engine families, so a manifold from the X166 (sold in the UK from 2016) is very unlikely to fit an X167 (introduced from 2019 onwards) even where engine displacement looks similar on paper. The X167 also introduced updated Euro 6d-compliant engines with revised exhaust routing and mounting points. Name the generation clearly when contacting a breaker, and always cross-reference your engine code to confirm compatibility before purchasing.

Yes, this matters significantly — the diesel GLS 350d and GLS 400d use different engine families entirely from the petrol GLS 450 and GLS 580, meaning their exhaust manifolds are not interchangeable across fuel types. Even within the diesel or petrol ranges, different displacement and state-of-tune variants can have different manifold configurations, so always match the part to your exact engine code (for example OM654 for the 400d or M276 for the earlier petrol six-cylinder). Your registration will identify your engine code, and the breaker can then confirm against their stock.

Trim level does not affect exhaust manifold fitment — AMG Line, AMG Line Premium, and standard GLS trims all use the same engine variants and the manifold is determined entirely by your engine code and emissions specification, not by the trim badge. You may find cosmetic differences in surrounding components (undertray panels, heat shields) depending on specification, but the manifold itself is the same across trims sharing the same engine. Focus your search on engine code and model year rather than trim name.

Emissions era is important for the GLS because engine specifications, including exhaust gas recirculation routing and manifold geometry, were revised as Mercedes moved through Euro 6 sub-stages (Euro 6b, 6c, 6d-temp, 6d) across the X166 and X167 generations. A manifold from the wrong emissions era may not seal or mount correctly and could cause emissions failures at MOT. Always tell the breaker your exact engine code and model year so they can match the correct emissions-era specification — do not assume a visually similar manifold from a different year will be a safe swap.

No — the AMG GLS 63 uses a high-output AMG-specific V8 engine (the M177 in the current X167 generation) with its own bespoke exhaust manifold design that is not shared with standard GLS petrol or diesel variants. You will need a manifold specifically sourced from a GLS 63 AMG or a compatible AMG V8 donor vehicle, and breakers with AMG stock are less common, so availability may be limited. Confirm the exact engine code and generation with the breaker, and be prepared that pricing and lead times for AMG-specific parts may differ significantly from mainstream GLS components.