Mercedes-Benz CLK Coil Pack Replacement Parts

Petrol-engined CLKs use individual ignition coils (often called a coil pack or coil-on-plug setup) rather than a distributor, so yes, the part exists on petrol variants of this model. Diesel CLKs (such as those with the OM611 or OM646 engine) use compression ignition and have no spark plugs or coil pack at all, so if you have a diesel CLK you need a different fix entirely. If you're unsure whether your CLK is petrol or diesel, check your V5C or run a VIN check before ordering.

The CLK ran across two main generations: the W208 (1997–2002) and the W209 (2002–2009, with a facelift around 2005), and these generations used different engine families, so a coil pack from a W208 is very unlikely to suit a W209. The engine code is the key detail here — a coil pack follows the engine, not just the model name, so even within the same generation you need to match codes exactly. Always confirm the engine code from your V5C or a VIN check and supply it to the breaker before agreeing a sale.

The W209 facelift arrived around 2005 and brought some changes, but whether those changes affected your specific engine's ignition coils depends on the engine code rather than the facelift date itself. In many cases the same petrol engine ran across the facelift boundary without coil changes, but there can be running changes mid-production that aren't always documented publicly. Confirm against your registration and engine code with the breaker to be certain before purchasing.

For the CLK, trim levels like Elegance, Avantgarde, and Sport (or AMG variants) do not affect coil pack fitment — what matters is the engine fitted, not the badge or interior specification. The AMG models (such as the CLK55 or CLK63) do use distinct high-performance engines with their own specific coils, so those should be treated as a separate engine code match rather than a trim match. Give the breaker your engine code and they can identify the correct coil regardless of which trim your car carries.

Because coil packs follow the engine code rather than the model name, a CLK sharing the same engine code as a contemporary C-Class (W203) or E-Class (W211) will often use identical coils — Mercedes regularly fitted the same engine family across multiple models. This can be a useful way to find a part if CLK-specific stock is limited, as breakers may have more donor cars from higher-volume models. Always cross-reference the engine code with the breaker to confirm compatibility before buying.

Petrol CLKs typically use one coil per cylinder, so a four-cylinder engine (such as the M271) has four coils and a V6 or V8 has six or eight respectively — your engine code will confirm the exact count. From a used-parts perspective, you can buy and fit a single coil if only one has failed, though some garages recommend replacing them as a set if the car has high mileage, since the others are likely similar age. Ask the breaker whether they can supply a full set from the same donor vehicle if you want matched units.