Subaru Impreza 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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Subaru Impreza Headlights: OEM Part Number

Accuracy note: genuinely worth knowing: Impreza headlights are frequently revised at a mid-generation facelift, changing the internal lens design and light signature even where the exterior shape looks similar — confirm your exact build date, not just generation, before ordering.

A Genuinely Important UK Rule Worth Knowing Before You Buy — Subaru Impreza Headlights

If your Impreza 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.

Subaru Impreza Headlights reference plate

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.

Subaru Impreza Headlights: What It Does

Inside the Subaru Impreza's headlight unit sit the main and dipped beam bulbs, or LED/matrix modules on higher trims, precisely angled to light the road ahead without dazzling oncoming drivers. Many current units also fold the daytime running light and front indicator into the same housing, which complicates both the part number and any repair.

Subaru Impreza Headlights: Generations, Derivatives & Headlight Type

Standard trims	Halogen as standard, with LED daytime running lights integrated on many trims
Higher trims/factory option	Genuine factory Xenon HID was offered on some generations — confirmed as a completely different housing design from halogen, not a bulb swap; halogen-specification replacement units explicitly don't fit cars originally built with factory Xenon HID

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Subaru Impreza 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 Subaru Headlights

The same part, covered across other Subaru models.