Used Mercedes-Benz G-Class Exhaust Manifold

The G-Class ran as the W463 generation from 1989 right through to 2018, when it was replaced by the heavily revised W464 — and while the two generations share a visual resemblance, the engines changed significantly with the W464 adopting updated Euro 6 powertrains, so a manifold crossing that 2018 boundary is very unlikely to be a straightforward swap. Engine codes and emissions hardware differ between generations, meaning even a physically similar-looking manifold may not seal correctly or may not meet MOT emissions requirements. Name the generation boundary clearly to your breaker and confirm against your registration plate before buying.

Yes, the engine code is the single most important factor when sourcing a used G-Class exhaust manifold — the G-Class has been offered with a range of petrol and diesel engines across its long production life, including naturally aspirated and turbocharged units, and each has its own manifold design and port configuration. A manifold from a different engine family will almost certainly not fit even if the vehicle looks identical from the outside. Always quote your engine code to the breaker, which you can find on your V5C or by asking the breaker to check against your registration.

Absolutely — petrol and diesel exhaust manifolds are completely different parts and are not interchangeable on the G-Class. Diesel variants also sit within different emissions eras, with later Euro 5 and Euro 6 diesel engines incorporating different exhaust routing and connections to meet tighter NOx and particulate standards, so even within diesel variants the year and emissions standard matter. Always confirm fuel type and Euro emissions standard with the breaker alongside your engine code.

Trim level alone does not affect manifold fitment, but the AMG G63 uses a completely different engine (the M177 or M176 twin-turbocharged petrol V8 depending on generation) compared to the diesel G350d (OM642 or similar), so what looks like a trim difference is actually an entirely different engine family requiring a different manifold. If you have an AMG variant, make sure any part is sourced from the correct AMG engine, not a standard G-Class unit. Confirm the exact engine code with your breaker rather than relying on the badge alone.

The W463 ran from 1989 to 2018, so both those years sit within the same generation, which is a positive starting point. However, emissions regulations tightened during that period — Euro 5 applied from around 2011 and Euro 6 began phasing in from 2014 onwards — meaning the exhaust system components on a 2015 or 2017 car may differ from a 2012 car depending on which Euro standard each engine was built to. Match the engine code and Euro emissions era carefully, and confirm the specific interchange with your breaker against both registrations.

The exhaust manifold itself and DPF are separate components, but on DPF-equipped vehicles the manifold and downpipe may be designed with specific connections and sensor ports to work with the downstream emissions equipment, which can cause fitment or MOT issues if mixed with a non-DPF system. Whether a specific manifold from a DPF car will physically fit and work correctly on a pre-DPF G-Class is something you must confirm with the breaker against your exact registration and engine code — this is not a swap we can confirm as straightforward.