Hyundai i30 Headlights: Specs, Fitment & Common Faults

Bulb type, unit part numbers, and the faults that actually cause that flickering or dim light you've noticed.

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OEM Part Number: confirm via VIN — aftermarket LH TYC 20-12278-15-2 / RH TYC 20-12277-05-2

Accuracy note: Covers the Hyundai i30 (2017-) as listed in the UK aftermarket catalogues. Headlights are sold by side (passenger / nearside = LH, driver's / offside = RH on a UK car) and by lamp type — halogen, xenon (D1S / D3S) and LED or full-LED units are not interchangeable, and DRL, cornering and levelling options change the part number again. The references below are UK aftermarket catalogue listings for this generation, labelled by brand; genuine numbers are shown only where a listing quotes one. Check the lamp type and traffic side (UK right-hand-traffic units, not LHD) against your VIN, and expect xenon / LED and adaptive units to need levelling adjustment or coding after fitting.

Passenger side (LH / nearside) headlight — aftermarket	Van Wezel 8254961 (halogen H7/H7, electric levelling motor, pre-facelift); Van Wezel 8254963 (halogen H7/H7/H7, dynamic bending light, pre-facelift); Van Wezel 8227963 (halogen H7/H7/H7, facelift); Diederichs 6837081 (halogen H7/H7, electric levelling motor); Alkar 2781580 (halogen H7/H7/H7, electric levelling motor); TYC 20-12278-15-2 (halogen H7/H1, electric levelling motor)
Driver's side (RH / offside) headlight — aftermarket	Van Wezel 8254962 (halogen H7/H7, electric levelling motor, pre-facelift); Van Wezel 8254964 (halogen H7/H7/H7, dynamic bending light, pre-facelift); Van Wezel 8227964 (halogen H7/H7/H7, facelift); Diederichs 6837080 (halogen H7/H7, electric levelling motor); Abakus 221-1192RMLEMN2 (halogen H7/H7/H7, electric levelling motor); TYC 20-12277-05-2 (halogen H7/H1)
Bulb types	dipped H7, main H7 or H1, indicator PY21W, sidelight W5W
Genuine (OE) numbers quoted	None quoted in catalogue listings — order genuine units against your VIN
Fitment notes	All halogen; no DRL, xenon or LED units listed. There are separate pre-facelift and facelift units, and H7/H7/H7 types are the projector units with dynamic bending light.

A Genuinely Important UK Rule Worth Knowing Before You Buy — Hyundai i30 Headlights

If your i30 has factory-fitted halogen headlamp housings, converting them to fit LED bulbs is treated as a definite MOT failure under the current inspection manual — this isn't a grey area or a minor advisory, since a housing designed for halogen doesn't distribute an LED bulb's light output correctly, which can genuinely dazzle oncoming drivers. If you want a genuine LED upgrade, the correct route is a complete headlight unit designed for LED from the factory, not a bulb swap into an existing halogen housing.

Before you buy: matrix LED, adaptive, and cornering headlight systems often require electronic coding to the car after a unit swap, even for a genuine like-for-like replacement — a headlight that isn't recognised by the car's electronics can trigger warning lights or fail to auto-level correctly. Check whether your specific trim has one of these systems before assuming a straightforward bulb-in, bulb-out job.

Hyundai i30 Headlights: Watch: Replacing It

🎬 Watch: How to Replace the DEFECTIVE Hyundai I30 Headlights [2012-2017] (older gen)

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Second-gen i30 headlight unit replacement; no 2017- video identified.

Hyundai i30 Headlights: What It Does

The Hyundai i30's headlight unit job is positioning the main and dipped beam bulbs (or LED/matrix modules on higher trims) to light the road without dazzling oncoming drivers. That housing frequently also contains the daytime running light and front indicator, which is exactly why part numbers and repairs here can get complicated.

Hyundai i30 Headlights: Generations, Derivatives & Headlight Type

Standard trims	Halogen as standard
Higher trims/N Line	LED headlights become available further up the range, genuinely a different assembly and connector from the halogen units on lower trims

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Hyundai i30 Headlights: Common Faults, DIY Difficulty & Aftermarket Advice

These are the same regardless of make or model — see our full Headlights Guide for the four bulb technologies and how they differ, UK law on aim and modifications, common faults to check for, how difficult this job is to DIY, and confirming fitment against your VIN.

More Hyundai Headlights

The same part, covered across other Hyundai models.