1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Electrical problem A3

neverfear Jan 3, 2010

  1. neverfear

    neverfear New Member

    Hello to all
    I am new to all this so i`ll do my best
    I`m working on an 01 A3 petrol that firstly had the temp needle going from normal to over heating and back again ,i changed all 3 temp sensors , 2 on thermostat housing and 1 on the radiator,even though it seem to help it didn,t cure the problem, now 6 weeks later the external fan comes on before engine reaches 30 degrees and stays on even after turning off ignition , stays on untill battery dies. I`ve changed fan relay , opened and checked fan control unit,my computer keeps bringing up the same fault sayin engine coolant temp sensor signal incorrect ,checked all the wiring , could it be the ecu .
    If anyone could throw any light on the subject i would really appreciate it,i am a mechanic and rearly give up but this one just being tough :sos:
    Happy newyear to all.

Share This Page