Cheap Mercedes-Benz CLA Clutch Master Cylinder

Only manual-gearbox CLA variants have a clutch master cylinder — and in practice, the vast majority of CLAs sold in the UK were fitted with Mercedes' 7-speed dual-clutch automatic (7G-DCT) or the later 8-speed wet dual-clutch, neither of which uses a conventional clutch pedal or master cylinder. If your CLA has an automatic gearbox, this part simply does not exist on your car; what you may actually need is a transmission control unit, a clutch pack component internal to the gearbox, or a hydraulic actuator — confirm exactly what has failed with your garage before searching. A small number of manual-gearbox CLA variants were produced, so if yours genuinely has a clutch pedal, a clutch master cylinder does apply — but verify this against your V5 or a VIN check first.

The C117 first-generation CLA ran from 2013 to 2019 (facelift in 2016), while the W118 second-generation CLA launched in 2019, and these are substantially different platforms, so parts are not expected to cross between generations. Even within the rare manual variants, engine codes, pedal box design, and hydraulic line routing changed between these two generations. Name the generation boundary to your breaker and ask them to match against your specific engine code and registration rather than assuming cross-generation fitment works.

Trim and badge level (CLA 180, CLA 200, CLA 220d, CLA 250) do not directly affect clutch master cylinder fitment — what matters is the engine code, fuel type, and gearbox type. Two CLAs wearing different badges but sharing the same engine code and manual gearbox are far more likely to share this part than two cars with the same badge but different engine codes. Always supply your engine code (found on your V5 or via a VIN check) to the breaker rather than relying on the badge alone.

The C117 generation was facelifted in 2016, and while the fundamental platform carried over, ancillary mounting and hydraulic line specifications can change mid-production without a full model change. For a mechanical component like this on an already rare manual variant, you should confirm fitment against your exact engine code and registration with the breaker rather than assuming pre- and post-facelift parts are interchangeable. Naming the facelift year to your breaker will help them locate the right donor car.

A very small number of CLA 220d manual variants were produced, and if yours genuinely has a clutch pedal then yes, a clutch master cylinder would be present. However, the 220d was most commonly paired with the automatic gearbox in UK-market cars, so it is worth double-checking your gearbox type on your V5 before ordering. If the part is confirmed as needed, give the breaker your engine code (the OM651 family or similar — check your V5 or a VIN check to be certain of your exact code) alongside your registration so they can match the correct unit.

If your CLA has an automatic gearbox — which covers the vast majority of UK CLAs — there is no clutch master cylinder to replace, so the fault will lie elsewhere. Common misdiagnoses include issues with the dual-clutch transmission's mechatronic unit, internal clutch packs, or the gearbox hydraulic system, none of which are served by this part. Ask your garage to confirm the exact failed component and its part number before approaching a breaker, as supplying the wrong part description will make finding the right used component much harder.