Parts for your 2008 Subaru Impreza-Headlight bulbs

2008 Subaru Impreza headlight bulbs

Headlight bulbs are absolutely fitted to the 2008 Subaru Impreza. According to the 2008 Impreza Owner’s Manual and Subaru service information, most models use halogen H11 low-beam and HB3/9005 high-beam bulbs, while some higher-spec variants (including certain WRX/STI trims) were offered with factory HID/Xenon low-beams using D2S bulbs. So yes—headlight bulbs are relevant on this model.

On a 2008 Impreza, the headlight bulbs do the heavy lifting after dark—providing safe forward lighting, helping with road-edge visibility and signage, and keeping the car visible to others. They’re a small part with a big job, and a fresh set can make night driving far less tiring.

When to think about replacement or service:

• One side looks dimmer, flickers, or has a different colour temperature.
• The light output feels weak in rain or on unlit roads.
• A bulb has blown, or the dash shows a bulb warning (where fitted).

Good maintenance goes a long way. Inspect headlight performance every 6–12 months, clean hazy lenses, and check for moisture inside the housings. Replace bulbs in pairs to keep brightness and colour matched. Stick to ADR-compliant bulbs in Australia and New Zealand, and avoid over-wattage bulbs that can overheat the housing or wiring. If your vehicle has factory HID (D2S), handle with care—HID systems run high voltage and should be serviced with the battery disconnected, many owners prefer a qualified auto sparky for HID work.

DIY bulb change (halogen types):

1. Park safely, switch off, pop the bonnet, and let the lights cool.
2. Remove the rear dust cap on the headlamp, unplug the connector, and release the spring clip or twist-lock.
3. Swap in the correct bulb (H11 low, 9005 high). Don’t touch the glass—use gloves.
4. Re-secure, refit the dust cap, and test both beams. Adjust aim if needed to avoid glare.

Expected life varies: halogen bulbs often last a few hundred to 600 hours, while OEM HID capsules can stretch into the low thousands before dimming. If night vision still feels average with fresh bulbs, consider a professional headlight aim and a lens restoration—both can transform output without bending the rules.

Popular questions

What bulb type does a 2008 Subaru Impreza use?
Most 2008 Impreza models use H11 for low beam and HB3/9005 for high beam. Some WRX/STI variants have factory HID low-beams that take D2S capsules. Always confirm against the owner’s manual or the label on the headlamp housing.

How often should the headlight bulbs be replaced?
There’s no set kilometre interval—replace when dim, discoloured, or failed. Many owners refresh halogens every couple of years to keep output crisp, and it’s smart to replace in pairs for even light.

Can LED bulbs be fitted to a 2008 Impreza?
Only if the bulbs and housing are ADR-compliant for on-road use. LED “retrofits” in halogen housings can create glare and may not be legal. If you want an upgrade, choose compliant options and get the aim checked.