Seat Ibiza Headlights: Specs, Fitment & Common Faults
Bulb type, unit part numbers, and the faults that actually cause that flickering or dim light you've noticed.
Illustration for editorial purposes
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OEM Part Number: confirm via VIN — aftermarket LH Valeo 046724 / RH Valeo 046725
| Passenger side (LH / nearside) headlight — aftermarket | Valeo 046724 (halogen H7, W5W, PY21W, with DRL, electric levelling, bulb included, original part); Valeo 046720 (halogen H4, W5W, PY21W, with DRL, electric levelling, original part); Valeo 044821 (halogen H4, W5W, PY21W, no DRL, electric levelling, original part); Valeo 043816 (halogen H7, no DRL, electric levelling, original part); TYC 20-14374-15-2 (halogen H7/H7, chrome, no levelling motor); Diederichs 7426981 (halogen H7/H7, chrome, electric, Depo/TYC quality) |
|---|---|
| Driver's side (RH / offside) headlight — aftermarket | Valeo 046725 (halogen H7, W5W, PY21W, with DRL, electric levelling, bulb included, original part); Valeo 046721 (halogen H4, W5W, PY21W, with DRL, electric levelling, original part); Valeo 044822 (halogen H4, W5W, PY21W, no DRL, electric levelling, original part); TYC 20-14373-15-2 (halogen H7/H7, chrome, no levelling motor); Diederichs 7426980 (halogen H7/H7, chrome, electric, Depo/TYC quality); Van Wezel 4924964 (halogen H7/H7, PX26d) |
| Bulb types | dipped H7 (PX26d) or H4 (P43t), indicator PY21W, sidelight W5W; xenon D1S on bi-xenon units |
| Genuine (OE) numbers quoted | None quoted in catalogue listings — order genuine units against your VIN |
| Fitment notes | Halogen H4 (base) and H7 (higher trims, some with DRL) units cover most cars, and only the Valeo 044833/044834 pair are bi-xenon (D1S) with no LED headlights listed. |
A Genuinely Important UK Rule Worth Knowing Before You Buy — Seat Ibiza Headlights
If your Ibiza 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.
Seat Ibiza Headlights: Watch: Replacing It
6J headlight bulb
Seat Ibiza Headlights: What It Does
The Seat Ibiza's headlight unit houses the main and dipped beam bulbs (or LED/matrix modules on higher trims), positioned and angled to illuminate the road ahead without excessively dazzling oncoming traffic. Many modern units also integrate the daytime running light and front indicator into the same housing, which affects both the part number and the complexity of any repair.
Seat Ibiza Headlights: Generations, Derivatives & Headlight Type
| Standard trims | Halogen headlights on base and mid trims — genuinely still fitted even on relatively well-equipped versions of some generations |
|---|---|
| FR (factory-optioned) | Bi-Xenon was available as a genuine factory option (around £425 at the time), though this was an option rather than standard even on FR — not every FR-badged Ibiza has it |
| Current generation, higher trims | Full LED headlights, confirmed as a completely different assembly and connector from the halogen units fitted to lower trims — swapping between the two isn't a straightforward plug-and-play job |
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Seat Ibiza 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 Seat Headlights
The same part, covered across other Seat models.