This 2009 Audi Q5 S Line came in with the dipped beam headlight out. The Q5 at this age uses Xenon HID (High Intensity Discharge) headlights rather than standard halogen bulbs — so the bulb specification is completely different. The bulb required is a D3S 35W Xenon unit, which is more expensive than a standard halogen but straightforward to replace once the headlight is partially removed.
The headlight doesn't need to come fully out — just loosening the three T30 Torx bolts and sliding it forward slightly gives enough access to reach in and swap the bulb.
Bulb Specification — Audi Q5 2009 S Line Xenon
What You'll Need
Step-by-Step Guide
Remove the Top Plastic Panel & Clips
Open the bonnet. There's a plastic trim panel running along the top of the headlight area — remove the clips holding it down and lift it clear. This gives you a clear view of the headlight unit and the Torx bolts holding it in. Note that some clips may already be missing on older Q5s — replace any that are broken.
Loosen the Three T30 Torx Bolts
The headlight is secured by three T30 Torx bolts — two visible from above and one located down at the bottom rear of the headlight unit which you'll need to reach for. Undo all three. The headlight does not need to come out completely — just loosen it enough to slide it forward slightly and create access to the back of the unit.
Slide the Headlight Forward & Access the Bulb
With the bolts out, carefully slide the headlight forward on its lower mounting rail — it runs on a sliding mechanism underneath so it won't come all the way out without bumper removal. You only need a few centimetres of clearance to get your hand behind it to access the bulb. There is a small rubber gasket on the side — be careful not to damage it.
Remove the Plastic Cover & Old Bulb
Reach behind the headlight and locate the plastic bulb cover — it has a small metal clip holding it on. Ping the clip off and the cover will come away. Be careful not to drop the cover down into the bumper. Behind the cover you'll find the D3S Xenon bulb. Disconnect the plug from the bulb and pull the old bulb free — it will likely be clearly blown or discoloured.
Fit the New D3S Bulb & Reassemble
Fit the new D3S 35W Xenon bulb — press it firmly into the holder and reconnect the plug securely. Refit the plastic cover and clip. Slide the headlight back into position, refit all three T30 Torx bolts and tighten down. Refit the top plastic panel and all clips. Turn the ignition on and test both headlights — both dipped beams should now be working.
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Job Summary
What to expect on this job:
