Used Mercedes-Benz CLE Glow Plugs

Glow plugs only exist on diesel engines, and the Mercedes-Benz CLE — launched in 2023 as a petrol-only coupé and cabriolet — is not offered with a diesel engine in any variant sold in the UK. No CLE has ever been fitted with glow plugs from the factory, so this part simply does not exist on this model. If your CLE is running rough when cold or is slow to start, the issue is more likely related to spark plugs, ignition coils, or fuel injectors — confirm the exact concern with a mechanic before ordering parts.

There is no CLE 220d; Mercedes-Benz has not offered a diesel CLE in any market, and the 220d badging belongs to the C-Class diesel range rather than the CLE lineup. It is likely there has been a mix-up between the CLE and a similar-looking Mercedes model such as the C-Class or E-Class, both of which are available with diesel engines and do use glow plugs. Double-check your V5 or run a VIN check to confirm the exact model and engine code, then search for parts against the correct vehicle.

No — the CLE 300 and CLE 450 are both petrol-engined variants using turbocharged four-cylinder and inline-six petrol units respectively, none of which use glow plugs. Glow plugs are a diesel-only component used to pre-heat the combustion chamber, and petrol engines use spark plugs instead. If you need ignition-related parts for a CLE 300 or CLE 450, search for spark plugs or ignition coils matched to your specific engine code.

Because all UK-market CLE models run petrol engines, the equivalent service items are spark plugs and ignition coils rather than glow plugs. For a hard cold start specifically, also consider the fuel system — injectors, fuel pressure regulator, or the coolant temperature sensor can all cause similar symptoms on a petrol engine. Give the breaker your registration and engine code so they can quote the correct ignition components for your exact variant.

No trim level on the CLE changes the fact that all variants use petrol engines; AMG Line, Exclusive, and AMG trims are all petrol-only in the UK market and none are fitted with glow plugs. Trim level affects interior specification, exterior styling, and suspension tuning rather than the fundamental engine type. If you are sourcing ignition parts, what matters is your engine code — found on your V5 or via a VIN check — not the trim badge.