Mercedes-Benz CLA Fog Lights: Specs, Fitment & Common Faults
On the CLA, there's genuinely no separate fuse for the fog lights at all on many modern models, since the entire system is controlled by the body control module instead.
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Mercedes-Benz CLA Fog Lights: OEM Part Number
Mercedes-Benz CLA Fog Lights: Rarely Used, Easy to Forget About Until Needed
Fog lights are one of those parts on the Mercedes-Benz CLA nobody checks until they need them, and with most owners using them only a few times a year, a fault can linger unnoticed for a long time before a foggy morning finally reveals it.
Mercedes-Benz CLA Fog Lights: What It Does
Front fog lights are angled and positioned to illuminate the road surface in low visibility conditions without creating the glare a standard headlight beam would in fog. Some higher trims of the CLA integrate fog lights into the same housing as cornering lights or daytime running lights, which affects both the part number and the complexity of any repair.
Fitment & Compatibility
Mercedes-Benz CLA Fog Lights: Generations, Derivatives & Fog Light Type
| Standard/non-AMG cars | Round halogen fog lamp as standard — confirmed as a genuinely different design from Sport/AMG package cars, not just a finish difference |
|---|---|
| AMG Styling Package cars | A different fog light design specific to this package, not interchangeable with the standard round halogen unit; some non-AMG cars without the Luxury Package have no fog light fitted at all, just a blanking cover |
Not every trim level of the CLA comes with fog lights fitted as standard, and the housing design often differs between trims that have them integrated with other lighting functions and those with a standalone unit. Always confirm your specific trim's fitment before ordering. Whether you're sourcing a replacement fog 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 Fog Lights
If a fog light fault has appeared and you can't find a relevant fuse, this is genuinely worth knowing: on many modern models, there's genuinely no separate fuse for the fog lights at all, since the entire system is controlled by the body control module instead.
It's also genuinely worth knowing that replacing any external light bulb with an LED bulb can genuinely trigger a "defective lights" warning message on the dashboard, not necessarily indicating a genuine fault.
Mercedes-Benz CLA Fog Lights: Common Faults, DIY Difficulty & Aftermarket Advice
These are the same regardless of make or model — see our full Fog Lights Guide for common faults to check for (including exactly what fails an MOT), how easy this job is to DIY, and aftermarket advice.
More Mercedes-Benz Fog Lights
The same part, covered across other Mercedes-Benz models.