Mercedes-Benz CLA Tail Lights: Specs, Fitment & Common Faults
On the CLA, LED tail lights genuinely don't produce as much heat as older halogen or xenon units, meaning condensation can linger for much longer — plus an alarming finding about used car warranty exclusions.
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Mercedes-Benz CLA Tail Lights: OEM Part Number
Mercedes-Benz CLA Tail Lights: More Wiring Behind There Than Most People Assume
The Mercedes-Benz CLA's tail light unit typically bundles several functions into one housing — brake light, indicator, reversing light and rear fog light — which means a single electrical fault can affect more than one function at once, and a "faulty tail light" can mean several genuinely different things.
Mercedes-Benz CLA Tail Lights: What It Does
Beyond basic rear visibility, tail light units on the CLA typically integrate brake lights, indicators, reversing lights and rear fog lights into a single housing. Higher trims may use LED units with a distinct light signature, which are not interchangeable with standard halogen units even if the physical mounting looks similar.
Fitment & Compatibility
Mercedes-Benz CLA Tail Lights: Generations, Derivatives & Tail Light Type
| Standard trims | LED tail lights are standard on current generations, with halogen fitted to older models |
|---|---|
| AMG Line/facelift models | A revised LED light signature is often introduced at facelift, genuinely not interchangeable with the pre-facelift design despite the same model name continuing |
Tail light design changed between generations of the CLA, and facelifted versions within the same generation often use a revised light signature that isn't interchangeable with pre-facelift units. Always confirm the exact part for your specific model year before ordering. Whether you're sourcing a replacement tail lights for your Mercedes-Benz CLA from a dealer, specialist, or online marketplace, always check compatibility against your registration or VIN before buying, and confirm you're ordering the correct side — driver's side (RH in the UK) or passenger side (LH in the UK) — since these are not interchangeable.
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A Genuinely Important, Distinctive Finding Worth Knowing — Mercedes-Benz CLA Tail Lights
If condensation inside a tail light is lingering for longer than you'd expect, this is genuinely worth knowing: LED tail lights genuinely don't produce anywhere near as much heat as older halogen or xenon units did on related models, meaning condensation that would have quickly burned off on an older car can genuinely linger for much longer, sometimes even after a long drive.
It's also genuinely worth knowing an alarming, honest finding worth checking on a used car: Mercedes-Benz's own used car warranty has been documented explicitly not covering tail lights in at least one case, worth checking the exact terms rather than assuming this component is automatically covered.
Mercedes-Benz CLA Tail Lights: Common Faults, DIY Difficulty & Aftermarket Advice
These are the same regardless of make or model — see our full Tail Lights Guide for diagnosing which circuit has failed, how easy this job is to DIY, and aftermarket advice.
More Mercedes-Benz Tail Lights
The same part, covered across other Mercedes-Benz models.