Question about 2000 Audi A4

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The car will not start early in the morning until the sun is high up - warm.

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  • nick_angore Jun 24, 2009

    Venexcsd,

    Tried the solution. Parked the car at abot 9.30 PM woke up at 6.30 AM and it wouldnt start!

    Came back in 40 minutes and this time it started on the first turn however the following happened - and has been happeining regulaly - The entire dashboard instruments - gauge etc - were not working and instead had flashes of immobilizer and seatbelt signs. After driving for 2 kilometres there were flashes indicating SERVICE! This flashed on interminently for seveal minutes and then all dashborad instruments were back on.

    Regards,

    Nick

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  • Master
  • 1,185 Answers

Normally that is to do with condensation forming on the electrics due to the change in temperature overnight

Go to your local car shop and buy a tin of Holts Ignition Seal .

Get the engine warm , switch it off and then spray two coats of the spray over the ignition plugs & leads plus anything electrical.

We used that stuff on Rally cars to stop the water getting to the plugs

Posted on Jun 23, 2009

  • Tom
    Tom Jun 24, 2009

    New ballgame



    To get the faults you are describing it is down to the Engine Control Unit not as first thought an ignition problem.



    Weird fix number two coming up



    Inside the ECU there is a voltage regulator to provide a smooth voltage for the electronics I would bet that it is starting from cold at a voltage of say 6vdc.



    When you leave it the residual heat from the components inside are warming up the regulator and it is then providing near 12v



    Once the car starts and you start putting loads on the alternator the voltage drops again causing the ECM to "false" as it gets warmer it then corrects itself and will run until the next shut down.



    Sounds crazy but !! , locate the ECU box on your car , get a fan heater and stand it so that it is blowing hot air into the box, dont worry about how hot it gets as it normally cooks pretty good



    Give it 30 minutes of heat then try it

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