Land Rover Discovery Fog Lights: Specs, Fitment & Common Faults

A genuinely useful, specific finding: a single, shared fuse covers both front and rear fog lights — plus a distinctive account of wiring behind the units rubbing and shorting, and a useful clue about a corroded bulb holder.

Illustration for editorial purposes

OEM Part Number: confirm via VIN — aftermarket Valeo 044648 / Valeo 044649

Land Rover Discovery Fog Lights: Rarely Used, Easy to Forget About Until Needed

The Land Rover Discovery's fog lights sit unused for most owners most of the year, which means a fault can go unnoticed for a long time — right up until a genuinely foggy morning makes the problem obvious at the worst possible moment.

Land Rover Discovery 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 Discovery 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.

Land Rover Discovery Fog Lights: Watch: Replacing It

No Discovery 5 fog video found; this covers Discovery 3 and 4.

Fitment & Compatibility

Land Rover Discovery Fog Lights: Generations & Fog Light Type

Not every trim level of the Discovery 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 Land Rover Discovery 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.

A Genuinely Useful, Specific Finding Worth Knowing — Land Rover Discovery Fog Lights

If both the front and rear fog lights have stopped working together, this is genuinely worth knowing: a single, shared fuse located in the battery junction box covers both circuits on this platform, worth checking this specific fuse first if both fail simultaneously, rather than assuming two separate faults. It's also genuinely worth knowing that the illumination light inside the fog light switch itself is powered from this same fuse, so if the switch's own light goes out alongside the fog lights failing, this is a useful clue pointing toward this specific fuse having blown.

It's also genuinely worth knowing a useful diagnostic clue: if a bulb feels unusually difficult to remove from its holder, this itself can be a sign the holder has corroded, worth taking this resistance as a pointer toward a corroded holder being the underlying cause rather than just a stuck bulb.

Land Rover Discovery 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 Land Rover Fog Lights

The same part, covered across other Land Rover models.

• Land Rover Defender Fog Lights
• Land Rover Discovery Sport Fog Lights
• Land Rover Freelander 2 Fog Lights
• Land Rover Range Rover Evoque Fog Lights