Mercedes-Benz GLA Exhaust Manifold Replacement Parts

Most GLA engines are turbocharged four-cylinders where the exhaust manifold is integrated directly into the turbocharger assembly or the cylinder head casting, rather than being a separate bolt-on manifold in the traditional sense. This means you are unlikely to find a standalone 'exhaust manifold' as a separate serviceable part on most GLA variants — what you may actually need is the turbocharger itself, the combined turbo manifold assembly, or the cylinder head. Confirm exactly which component has failed with your mechanic before requesting quotes from a breaker, so you can ask for the correct part by name.

Yes, engine code is the single most important factor here. The GLA has used a range of four-cylinder petrol and diesel engines across its two generations — the X156 (2013–2019) and the X247 (2020-onwards) — and even within a generation, engines such as the M270, M260, OM651, and OM654 have different turbo and manifold configurations that are not interchangeable. Always give your breaker your full engine code, which you can find on your V5C or stamped on the engine block, before they pull the part.

The X156 (2013–2019) and X247 (2020-onwards) are different generations built on entirely different platforms and using different engine families, so parts from one generation are very unlikely to fit the other. The X247 moved to the newer OM654 diesel and M260 petrol engines, which have different turbo and manifold arrangements to the X156's OM651 and M270 units. Do not attempt to cross parts between these generations without confirming fitment against your exact registration and engine code with the breaker.

Trim level — whether SE, Sport, AMG Line, or any other — does not affect which turbo or manifold assembly the engine uses; what matters is the engine code and fuel type, not the badge on the tailgate. A diesel OM654 in an AMG Line will use the same assembly as the same engine in an SE, so you do not need to seek out a part from a matching trim. Just make sure the engine code and emissions standard (Euro 5 or Euro 6) match your vehicle, and your breaker can guide you from there.

It can matter, yes — Euro 5 and Euro 6 engines sometimes have different turbocharger specifications and exhaust gas recirculation setups even within the same engine family, and fitting a part from the wrong emissions era could affect performance or cause an MOT emissions failure. The GLA X156 spanned both Euro 5 and Euro 6 territory depending on the engine and model year, so do not assume all X156 turbo assemblies are identical. Give the breaker your registration so they can verify the correct emissions standard before supplying the part.

Both fall within the X156 generation (2013–2019), so there is a chance of compatibility if the engine code matches, but the early X156 diesels and later facelifted versions (facelift arrived in 2017) could have differences in turbo specification or emissions calibration that affect fitment. Confirm with your breaker against both registrations and engine codes rather than assuming all X156 diesel units are the same across the full production run. This is especially important with any emissions-related components, where a visual match does not always mean a functional one.