Cheap Mercedes-Benz E-Class Catalytic Converter

The W211 E-Class ran from 2002 to 2009 and the W212 from 2009 to 2016, and these are distinct generations with different exhaust system designs, so a direct swap is very unlikely even where the engine code looks similar on paper. The W212 also introduced Euro 5 and later Euro 6 emission standards, meaning a cat from the older W211 era could fail MOT even if it physically mounted up. Always confirm with the breaker against your exact registration before purchasing.

The W212 received its facelift in 2013, but the key fitment question is whether the engine code and emissions standard changed at that point for your specific variant, not simply whether the car is pre- or post-facelift. Where the engine code remained the same across the facelift, fitment may be possible, but catalytic converter interchange across this boundary is strong confirm-with-breaker territory given the emissions implications for MOT. Give your breaker your registration so they can check the exact specification.

Yes, all petrol-engined E-Class models are fitted with a catalytic converter as standard, and diesel variants also carry one as part of their exhaust after-treatment system alongside a diesel particulate filter. The exact configuration depends heavily on the engine code and the emissions era of the vehicle, so what you are looking for will differ between, for example, a petrol W211 and a Euro 6 diesel W213. Confirm the precise part against your registration with the breaker before ordering.

Trim level — whether SE, Avantgarde, AMG Line, or Sport — does not affect which catalytic converter is fitted; what matters is the engine code, fuel type, and emissions standard for your vehicle. You may find cosmetic differences around the exhaust exits on different trims, but the cat itself is determined by the drivetrain specification, not the trim badge. Focus your search on matching the engine code and year rather than the trim name.

The W213 generation began in 2016 and is a completely different platform to the W212, so the exhaust systems are not designed to be interchangeable. Beyond the physical differences, the W213 is predominantly Euro 6 compliant and fitting a Euro 6 cat to an earlier-registered vehicle may not be straightforward or beneficial for MOT purposes. This is firmly confirm-with-breaker territory — supply your registration and engine code for a reliable answer.

Diesel E-Class models typically carry both a catalytic converter and a diesel particulate filter as separate components within the exhaust after-treatment system, so you need to be clear with your breaker about which part you actually need. The exact arrangement varies by engine code and emissions era, with Euro 5 and Euro 6 diesel variants having different system layouts. Confirm with your breaker exactly which component is faulty and supply your registration so they can source the correct part.