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Fitment on a used timing chain varies by vehicle, so a bit of detail goes a long way. Our request form covers what breakers need to know, so every quote you get back is for the correct part:
The CLK ran as the W208 (1997–2002) and W209 (2002–2009), and these are fundamentally different platforms with different engine families, so a timing chain from a W208 will not cross to a W209 – the two generations do not share chains. Within each generation, fitment depends heavily on engine code, which you'll find on your V5 or via a VIN check. Always confirm the exact part against your registration with the breaker before buying.
Both years sit within the W209 generation (2002–2009), so they share the same platform, but fitment of the timing chain still depends on matching engine codes exactly – for example, a 2.6 V6 chain will not suit a 3.2 V6 or a 1.8 kompressor four-cylinder. Give the breaker your engine code (stamped on the block or found via a VIN check) rather than just the year, as mid-production engine specification changes can affect which chain applies. Never assume year alone is enough to confirm fitment.
No – body style makes no difference to timing chain fitment on the CLK; the chain follows the engine, not whether the car has a fixed or folding roof. A chain from a W209 convertible with the same engine code as your coupe is mechanically identical for this purpose. Focus on matching engine code and fuel type, and let the breaker confirm the rest against your registration.
No, CLK trim levels such as Avantgarde, Elegance, and Sport do not influence timing chain fitment at all; trim affects interior, wheels, and cosmetic features, not the engine internals. The chain is determined entirely by your engine code and fuel type (petrol or diesel), so a chain sourced from a lower or higher trim car with the same engine code is what you're looking for. Confirm the engine code with your breaker for a reliable match.
This is an important distinction: the vast majority of Mercedes-Benz CLK engines across both the W208 and W209 generations use a timing chain rather than a cambelt, which is one reason these engines are popular with buyers seeking lower maintenance costs. However, the specific chain configuration – single chain, double chain, tensioners, guides – varies between engine codes, so sourcing the right chain still requires matching on engine code precisely. If you are unsure whether your particular engine variant uses a chain or belt, check with a breaker or Mercedes specialist against your VIN.
The W209 received a facelift in 2005, but this was primarily cosmetic and did not involve wholesale changes to the engine family, so chains for the same engine code often carry across that boundary. That said, ancillary and specification changes can occur mid-production without a formal model-year announcement, so you should confirm with the breaker whether the specific chain and associated components match your registration rather than relying on the facelift year alone. Engine code remains your most reliable guide.