Mercedes-Benz A-Class Fog Lights: Specs, Fitment & Common Faults
A genuinely important finding: 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 — worth knowing before searching fruitlessly for a fuse that doesn't exist.
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Mercedes-Benz A-Class Fog Lights: OEM Part Number
Mercedes-Benz A-Class Fog Lights: Rarely Used, Easy to Forget About Until Needed
Because the Mercedes-Benz A-Class's fog lights spend most of the year switched off, a developing fault is easy to miss entirely — right up until the one genuinely foggy commute where you actually need them and discover they don't work.
Mercedes-Benz A-Class 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 A-Class 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 A-Class 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 A-Class 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 A-Class 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 A-Class Fog Lights
If a fog light fault has appeared and you can't find a relevant fuse anywhere, 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. Worth knowing this before spending time searching fruitlessly through a fuse box diagram for a fuse that simply doesn't exist for this specific circuit, and worth having a proper diagnostic scan carried out instead if bulbs have already been checked and found to be fine.
It's also genuinely worth knowing that some models are fitted with only one rear fog light rather than two, positioned on one specific side only, worth checking your specific model's setup before assuming a bulb is missing on the other side.
Mercedes-Benz A-Class 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.