Hyundai i30 Fog Lights: Specs, Fitment & Common Faults

On the i30, fog lights that never worked reliably from new can genuinely be traced to poor solder quality on very fine wires.

Illustration for editorial purposes

OEM Part Numbers

Accuracy note: we weren't able to verify a confident Hyundai i30 fog lights part number at the time of writing. Please confirm the correct part via a Hyundai dealer or parts specialist using your VIN.

A Genuinely Specific, Real Root Cause Worth Knowing About

If your fog lights have never worked reliably, even from new, this is genuinely worth knowing: one documented case on a related model identified the underlying cause as poor solder quality on the very fine wires within the fog light circuit, which can eventually trip or break as a result of a genuinely marginal manufacturing joint.

A genuinely important diagnostic warning worth knowing: when checking for a proper ground connection, it's worth avoiding an ohmmeter for this specific test — an unloaded resistance test can occasionally return a false positive. A test light connected to battery positive gives a genuinely more reliable result.

It's also worth knowing about a genuinely distinctive symptom pattern: fog lights that work correctly on high beam but fail specifically on low beam points toward an issue with a specific connection tied to the low beam circuit interaction.

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 i30 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 i30 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 Hyundai i30 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.

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 Hyundai Fog Lights Guides

The same part, covered across other Hyundai models.