Jaguar XF Fog Lights: Specs, Fitment & Common Faults

A genuinely specific finding: the wiring loom where it exits the boot lid is the only part subject to repeated movement stress — plus an honest account of a fuse found completely missing, and relays discovered swapped between positions in the car's history.

Illustration for editorial purposes

OEM Part Numbers

Accuracy note: we weren't able to verify a confident Jaguar XF fog lights part number at the time of writing. Please confirm the correct part via a Jaguar dealer or parts specialist using your VIN.

Rarely Used, Easy to Forget About Until Needed

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.

Before you buy: fog light fitment and bulb type vary by trim — not every trim level includes them as standard. Always confirm against your VIN before ordering.

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 XF 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

Not every trim level of the XF 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 Jaguar XF 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.

Common Faults

What to Look For

One side not working — usually a blown bulb, the most common and easiest fault to fix.
Neither side working — more likely a blown fuse or a faulty switch than two bulbs failing simultaneously.
Condensation inside the lens — points to a failed seal, worth addressing before it affects the bulb or wiring.
Cracked housing from front-end impact — common given their low mounting position, usually a straightforward like-for-like replacement.

DIY Replacement Difficulty

Bulb replacement is usually an easy DIY job, though access varies — some versions require reaching up from underneath via the wheel arch liner, others come apart from the front. Full housing replacement is similarly straightforward on most versions. Expect 15–30 minutes for a bulb swap, longer if the housing itself needs replacing.

A Genuinely Specific, Useful Finding Worth Checking Once Fuses and Relays Are Ruled Out

If the rear fog lights have stopped working and the fuse and relay both check out fine, this is genuinely worth knowing: the section of wiring loom where it exits the boot lid and enters the main body of the car is the only part of this specific loom subject to repeated movement, since it flexes every single time the boot is opened and closed. This repeated movement can cause genuine stress and eventual damage to the wiring over time, worth having this specific section inspected closely if more straightforward causes have already been ruled out.

A genuinely honest, real account worth knowing about an easily overlooked cause: one documented case saw a front fog light fault traced to a fuse that was found to be completely missing from its slot, rather than simply blown — replacing it resolved the fault immediately. It's worth physically checking the fuse is actually present, not just assuming a fuse that looks fine in its slot is genuinely intact. Another documented case found relays had been swapped between positions at some point in the car's history, with a five-pin relay sitting in the wrong slot — swapping them back to their correct positions resolved the fault, worth checking this specifically if a previous owner or garage may have worked on the fuse box.

It's also genuinely worth knowing a useful troubleshooting step: with the engine running and headlights switched on, turning the fog lamps on and off two or three times in succession can sometimes help a sluggish relay engage properly, worth trying this simple step before assuming a more involved electrical fault.

OEM vs. Aftermarket

Reputable aftermarket fog light units and bulbs are a reliable, cost-effective alternative to OEM parts for the vast majority of cases, since this is a relatively simple lighting component without the complexity of adaptive or LED headlight systems.

More Jaguar Fog Lights Guides

The same part, covered across other Jaguar models.