Question about 1999 Audi A4

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Fuel gauge audi a4 1999 1.8t

J dell,

thank you for the excellent description. I was able to follow it easily and get to the sensor. Unfortunalty, all the wires were in good shape and I did not see any problem with the connection. Time for a new sensor?
Interesting that the car stalled when I pulled the sensor while running?
thanks
Nathan

Posted by on

  • ndopp Aug 07, 2008

    J_del,



    thanks, that worked out great. Once I got down into the tank and figured out how to pull the float, I managed to replace it without blowing myself up.



    the wire was so shot I went for the new unit vs messing around creating a new wire.



    thanks again for the solution,



    nathan

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Glad it helped. Another question for you - did you actually see a wire that was run beneath the float arm on the body of the sender? If not, it may have broken off completely. Here's a picture of where the wire is:

<img src="http://www.audiworld.com/tech/pics/elec77-sendingunit.jpg">

Also, on the backside there is a small circuit board (which you can see in the picture as well) that is contacted by a wiper point - as you swing the float arm through its range of motion, yo'ull see it contact a number of solder points. Try cleaning those. Finally, did you check the electrical contacts on the pump unit itself, where the harness for the sender plugs in? Even if the contact points on the sender harness are clean, the socket they plug into could be dirty.

If none of that fixes it, I'd say you're in for a new sender. Let me know what happens OK?

Posted on Jul 31, 2008

  • Jeremy Dellow
    Jeremy Dellow Aug 08, 2008

    No problem and I'm glad it worked out for ya:)

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    Connector Shown From Component Side
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  1. Adjust the fuel tank float to the following positions:
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Good luck.....

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