Second Hand Mercedes-Benz CLA Throttle Body

Yes, but only on petrol-engined CLA variants — the petrol units (such as the M270 and M260 four-cylinder engines found across the range) use an electronically controlled throttle body. Diesel CLAs (the OM607 and OM651 engines) do not use a conventional throttle body in the same way, as diesel engines control power through fuelling rather than air throttling, so if you have a diesel CLA this is almost certainly not the part you need. If you're on a diesel, you may be thinking of the EGR valve, intake flap, or swirl flap assembly instead — worth checking with a breaker against your registration.

The CLA ran in two generations: the first-generation C117 (2013–2019, with a facelift in 2016) and the second-generation C118 (2019 onwards), so a 2014 and a 2018 car are both C117s and share the same generation. Fitment within the C117 generation is primarily driven by the engine code — a 2014 CLA 200 and a 2018 CLA 200 both use the M270 engine family and are likely compatible, but mid-production ancillary or mounting changes can occur, so confirm the engine code from your V5 or a VIN check and verify with the breaker before buying.

Yes, the C117 (2013–2019) and C118 (2019 onwards) are entirely different platforms and use different engine families — the C118 petrol models moved to the M260 unit rather than the M270 — so throttle bodies from these two generations are not interchangeable. Always match by engine code rather than model year alone, and confirm across this generation boundary with the breaker against your exact registration.

Trim level does not determine which throttle body is fitted — what matters is the engine code, fuel type, and whether the car is a standard or performance variant (for example, the CLA 45 AMG uses a different high-performance engine and will have a different throttle body to a CLA 200 AMG Line despite both wearing AMG badges). Check your trim's engine code on your V5, supply it to the breaker, and don't be put off if a part comes from a lower or higher trim car — the trim name itself is irrelevant to fitment.

No, the 4MATIC drivetrain does not affect the throttle body — this part is determined by the engine, not how power is delivered to the wheels. The CLA 250 uses the M270 engine regardless of whether it's front-wheel drive or 4MATIC, so the throttle body should be the same across both drivetrain configurations; confirm the engine code matches between your car and the donor vehicle when speaking to the breaker.

Throttle bodies on modern Mercedes petrol engines can sometimes require adaptation or coding to the ECU after fitting, and this is something you should confirm with a qualified Mercedes technician or the breaker before purchasing a used unit. We can't state as fact exactly which CLA variants require coding and which do not, as this can vary and is best verified against your specific registration — budget for any adaptation work when considering the total cost of a used part.