Replacing a headlamp bulb on an Audi A4 (B6)
I recently bought a 2004 Audi A4 (B6) RHD - the catch was that it had completed just under 150,000 miles. No problem, most of these were motorway miles, and in general the car is extremely tidy and well maintained, having had one very careful owner.
Since buying the car, I've completed about 2,500 miles and have fortunately only suffered a jammed CD in the CD changer, and more recently a blown left-hand dipped bulb. Usually a blown bulb shouldn't be too much of a problem, however the owners manual advises having them changed by a professional.
Hmmm.... as the blog title suggests, I'm not particularly mechanically minded, but if I can fix something myself, I will try and have a go.
Having read (nearly) every page on the Internet related to B6 headlamp bulb replacement, there didn't appear to be any decent pictures, or common approach, and all the suggested screwdriver bit sizes seemed to differ too. I've completed the job tonight, so while everything is still in my head, I thought I would write a quick blog post which will hopefully help others owners out too.
Tools and parts required
- Torx T-30 screwdriver (I used a normal bit-holding screwdriver, coupled with a Torx T-30 bit)
- 499 H7 bulb
- Headlamp / inspection lamp
- To be extra safe, you could disconnect the battery. Make sure you know your radio code etc. in case this is wiped.
- Cup of tea
Now you've got everything you need, let's start
- This may sound obvious, but firstly make sure you've identified the correct bulb - you don't want to be replacing the wrong one.
- The bulb I was replacing was the passenger-side dipped bulb. (I may cover the driver-side in a future post as and when that bulb goes, however it's pretty much the same, but you need to remove the plastic cover over the air intake)
- Remove the two torx screws on the top of the headlamp unit:
- Next, locate the left-hand rear screw. You don't need to remove this, just unscrew a few turns. Loosening this screw will enable you to remove the headlamp cluster. This screw isn't too hard to find - see the picture below:
- The rear right-hand screw is a bit harder to find. I've read in other how-to guides that you can remove the cover of the power-steering reservoir - I'm not sure how much that will help; The screw is tucked underneath a cable which can be seen in the picture below - in this picture, the headlamp has already been removed which should help you see where it is located. Again, you only need to loosen this screw, do not remove it. The gap is fairly tight between the cable and the reservoir, but with a head torch/inspection lamp, you should see it:
- With the two top screws removed, and the two rear ones loosened, disconnect the wiring harness from the rear of the headlamp cluster:
- You should now be able to gently prise the headlamp cluster forward out of the front of the car.
- With the cluster removed, undo the rear of the cluster by unhooking the metal hook:
- Disconnect the wiring block from the rear of the bulb, and unhook the wire hook retaining the bulb:
- Once you've removed the old bulb, take your new one (I recommend opening the box from the bottom so you don't end up touching the bulb glass itself) and replace.
- Now just reverse all of the actions above, and test the new bulb is working fully.
Disclaimer: In no event shall the author of this blog be liable for any incidental or consequential damages resulting from use of the material. The author of this blog does not accept liability for any injury, loss or damage incurred by reliance on the information or advice provided in the pages and sub-directories of this website or incorporated into them by reference. I am not a mechanic, I am just sharing my experiences with others, hoping that others may benefit.