Mercedes-Benz CLS DPF Replacement Parts

This is a key boundary question: the CLS moved from its second generation (W218, launched 2011) through a facelift in 2014, but the more important distinction for a DPF is the engine code and emissions standard, as Euro 5 and Euro 6 engines can have different exhaust aftertreatment setups even within the same body generation. A DPF from a pre-facelift 2011–2014 car may not be a straight swap onto a 2015 facelift model even if the engine appears similar on paper. Confirm the engine code and emissions standard on both cars with the breaker against your registration before ordering.

Yes, engine code is the single most important factor for DPF fitment on a Mercedes-Benz CLS — the DPF is matched to a specific engine family and its exhaust system, not simply to the model name or year. Two CLS cars from the same year can carry different diesel engines with different DPF assemblies that are not interchangeable. Always give the breaker your exact engine code, which you'll find on your V5C or by checking your registration against a data lookup.

No — trim level does not affect DPF fitment on the CLS; whether your car is a standard CLS, an AMG Line, or a higher specification variant, the DPF is determined by the engine and the emissions standard the car was built to, not the trim. You may find cosmetic differences around the exhaust exits depending on trim, but the DPF unit itself is engine-driven. Confirm the engine code and registration with the breaker to make sure you're matched to the right part.

It is very unlikely to be a straightforward swap, as Euro 5 and Euro 6 diesel systems are designed around different emissions thresholds and the DPF and associated sensors can differ accordingly — fitting the wrong era DPF could also cause an MOT failure. The CLS W218 spanned both Euro 5 and Euro 6 production periods, so age alone does not tell you which standard your car meets. Check your registration with a data service or ask the breaker to confirm the emissions standard of both the donor car and your own before proceeding.

The W219 (first generation CLS, 2004–2010) and W218 (second generation, 2011–2018) are distinct platforms with different engine families and exhaust architectures, so cross-generation DPF interchange is very unlikely. Even where engine codes appear related, the exhaust systems were redesigned between generations. Confirm directly with the breaker using both registrations, as this is strong confirm-with-breaker territory and not something that should be assumed from visual similarity alone.

Yes, mileage is worth considering because a DPF from a high-mileage donor car may be partially blocked or close to the end of its serviceable life, which could mean a short time before problems reappear on your car. Ask the breaker for the donor vehicle's mileage and, where possible, whether any fault codes were present. Beyond mileage, still confirm the engine code and emissions era match your car's registration before agreeing to buy.