Second Hand Mercedes-Benz CLK EGR Valve
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Choosing the right used Mercedes-Benz CLK egr valve
Used egr valves vary between vehicles - and whether you call it used, second hand or a replacement, matching the right one matters. These are the details breakers need to match the right part to your car - our request form asks them so you only hear from suppliers with the correct part:
- State whether it's petrol or diesel
- State the engine code if known
Other used Mercedes-Benz CLK parts
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- Used Mercedes-Benz CLK Exhaust System
- Used Mercedes-Benz CLK Lambda Sensor
- Used Mercedes-Benz CLK Rear View Mirror
- Used Mercedes-Benz CLK Sump
- Used Mercedes-Benz CLK Door
- Used Mercedes-Benz CLK Clutch
- Used Mercedes-Benz CLK Scuttle Panel
- Used Mercedes-Benz CLK Boot Lid
- Used Mercedes-Benz CLK Door Handle
- Used Mercedes-Benz CLK Turbo
Used egr valve for other Mercedes-Benz models
Fitment questions
Does the Mercedes-Benz CLK actually have an EGR valve?
It depends entirely on the engine. Diesel-engined CLKs (such as the 220 CDI and 270 CDI) do have an EGR valve, as EGR is standard on diesel engines to reduce NOx emissions. However, the CLK's petrol engines — which made up the majority of the range — are naturally aspirated or supercharged units that did not use EGR, so if your CLK is petrol you are unlikely to need one. Check your V5 or registration plate lookup to confirm your fuel type before searching.
Will an EGR valve from a W208 CLK diesel fit a W209 CLK diesel?
The CLK ran across two generations: the W208 (1997–2002) and the W209 (2002–2009), and these are distinct platforms with different engine families, so parts do not simply swap between them. Even if the diesel engine codes look similar, the EGR valve mounting, pipework, and electrical connectors are likely to differ. Always confirm the exact engine code on your car — found on the V5 or stamped on the engine block — with the breaker before purchasing.
Does the year of the W209 CLK diesel matter when buying a second-hand EGR valve?
Yes, engine code and emissions specification matter. The W209 CLK diesel was updated during its production run, and later examples moved toward Euro 4 compliance with revised EGR calibration and potentially different valve specifications compared with early W209 diesels. Matching the engine code exactly — for example 611 or 647 depending on variant — is the safest approach. Give the breaker your registration so they can verify the correct part against your specific engine build.
Does the trim level — for example Elegance or Avantgarde — affect which EGR valve I need?
No, trim level has no bearing on the EGR valve fitted to your CLK. Elegance, Avantgarde, and other trim designations relate to interior specification, exterior styling, and equipment levels, none of which change the engine or its emissions hardware. The only things that matter are your engine code and fuel type, so two CLK diesels of the same engine code will use the same EGR valve regardless of trim. Focus your search on the engine code rather than the badge on the car.
Can I use an EGR valve from a Mercedes E-Class or C-Class diesel on my CLK?
It is possible that certain engine families were shared across Mercedes models of the same era, which could mean parts interchange — but this is not something to assume without checking. Engine code, connector type, and pipe routing all need to match, and a valve from a different model may look identical but be calibrated or dimensioned differently. This is exactly the kind of cross-model interchange question to put directly to the breaker, who can cross-reference by engine code and part number before you commit to buying.
How do I make sure the used EGR valve I'm buying will pass MOT?
An EGR valve in poor condition or from the wrong emissions era can cause your CLK to fail emissions testing at MOT. Make sure the part matches your exact engine code and emissions specification — not just the engine size — as later Euro 4 calibrated valves may differ from earlier units. Buying from a breaker who can verify the donor vehicle's registration and engine code against yours is the best safeguard. A reputable breaker should be able to confirm the part number matches before sale.