Question about 2005 Audi A3

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Audi A3 - "headlight range detector defective"

For the past 10 days, about 2/3 of the time that I have turned the key in the ignition, the engine has not started and the computer has flashed "headlight range control defective". The other 1/3 of times, the car has started normally and the headlights appear to be working perfectly.

Can anyone advise? (Is this going to be really expensive??!!)

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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  • 3 Answers

SOURCE: Audi A4 "left dipped headlight" problem

I have the same issue on my 2002 A4. According to my Audi dealer mechanic, there is a sensor on the front suspension that controls the angle of the headlight. Replacing this may resolve the issue.

Posted on Nov 06, 2009

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SOURCE: 2004 Audi A4 headlight replacement

you have to loosen the whole headlight assembly to open the covers behind the lights to actually get to the bulbs. 4 screws, 2 are on the top of the assembly(phillips screws) the other two are hex and attach the bottom of the assembly to the car. somewhat difficult to see but look behind the assembly and down into the compartment and loosen the screws(they don't fully come out) just enough to pull the assembly out. open the black cover behind he low bean and there is the bulb

Posted on Feb 05, 2010

  • 350 Answers

SOURCE: Audi A3 ignition problem

hi if petrol was bad it would happen even when its cold have you no engine check light on as a common fault for this type of problem is the ecu,s engine temperture switch yates210456

Posted on Oct 09, 2008

Scorpedo
  • 111 Answers

SOURCE: bulb replacment

The bulbs are changed from the rear. There might be a weather cover, once its removed you will see a ring or clip holding in the bulb , remove that to remove the bulb. Install in reverse order. And a little known fact most parts stores will install bulbs for free when you buy them.

Posted on Dec 16, 2008

chalkymon
  • 9 Answers

SOURCE: replace bulb

Depending what side you need to change? Ive changed loads of these for my customers over the years, Golf's and A3's can both be a little tricky. Directly behind the lamp assembly you should see a large single piece plastic cover. x2 tags are visible at the top and have to be depressed for the cover to tilt backwards and upwards to lift out. Be aware, these tags can break so pushing the cover inwards slightly whilst depressing these tags will lesson the chance of breaking. The dip beam bulb is normally a type 499 and will have a 2 wire connector plug. Pull this straight back to remove. A sprung steel clip holds the bulb in place. With a torch you will see an obvious end to this clip. Depress and ease to the side to bring it out of line with its recess. It will no swing backwards and allow the bulb to be removed. Note the tag is upper most on the bulb. Dont touch the glass of the bulb with your fingers, hold it by the base, then reassemble in the reverse order. Hope this helps? Good luck

Posted on Jan 17, 2009

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