Cheap Mercedes-Benz CLS EGR Valve

Yes, but only on diesel-engined CLS models — the EGR (Exhaust Gas Recirculation) valve is a standard component on diesel engines to reduce NOx emissions, so if your CLS is a diesel (for example a 220d, 250d, 350d or 400d variant) it will have one. Petrol-engined CLS variants do not use an EGR valve in the same way and are unlikely to need this part. Check your V5C or ask your breaker to confirm your exact engine code before ordering.

Almost certainly not — the C219 and C218 are entirely different platforms with different engine families, so the EGR valve design, mounting, and connections will differ between generations. Even if a unit looks visually similar, the engine codes are different and the emissions standards changed significantly across that boundary, with Euro 5 applying from around 2011. Always confirm fitment against your exact engine code and registration with the breaker rather than going by generation alone.

The C218 received a facelift in 2014, and while the engine line-up carried over broadly, there were updates to engine management and emissions hardware around this period as Euro 6 requirements came in from 2014 onwards. An EGR valve from a pre-facelift Euro 5 engine may not be the correct match for a post-facelift Euro 6 engine even if the displacement looks the same, so the engine code is the key check. Give your breaker your full registration and engine code so they can verify the part number before you commit.

No — trim level has no bearing on EGR valve fitment whatsoever; AMG Line, Sport, and standard trims all share the same engine and emissions hardware when the engine code is the same. What matters is your engine code and fuel type (diesel), not how the car is badged or specced. If two cars share the same engine code and emissions standard, the EGR valve should be the same part regardless of trim.

The 350 BlueTEC and later 350d badges were used across the W218's production run but can correspond to different engine variants and emissions tunes, so you should not assume all 350-badged units share the same EGR valve. Confirm the exact engine code from your V5C or the sticker in the engine bay and pass this to your breaker, as they can match the part by code rather than by badge. This is the safest approach given how emissions hardware can differ even within the same displacement family.

It is genuinely possible, because the CLS and E-Class of the same generation shared engine families — for example, the C218 CLS and the W212 E-Class used many of the same diesel units. However, fitment depends entirely on the engine codes being identical and the emissions era matching, so do not assume compatibility based on displacement or badge alone. Route this question directly to your breaker with both registrations or engine codes and let them confirm against part numbers before purchasing.