Engine Coolant Temperature Sensor

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  • button
    S2Forum Fanatic
    • Dec 2007
    • 99
    • Country: Poland

    #1

    Engine Coolant Temperature Sensor

    Hi.
    On VAG i always see this fault code:

    VAG-COM Version: Release 311.2-N

    Control Module Part Number: 4A0 907 551 AA
    Component and/or Version: 2,2l R5 MOTR.RHV HS D03
    Software Coding: PMC 1
    Work Shop Code:
    1 Fault Found:
    00522 - Engine Coolant Temperature Sensor (G62)
    30-00 - Open or Short to B+

    I bought temperature sensor (BEHR) and I plug it. Fault code didn't gone, and "check engine" is still on.

    What's wrong?
    Audi 90 quattro '88 4.2V8 on VEMS
    Audi S4 C4 Avant 2.2T '92 @ 2,5TDI
  • spink
    S2Forum Freak
    • Jul 2003
    • 4382
    • Country: England

    #2
    have you reset the codes?

    Comment

    • button
      S2Forum Fanatic
      • Dec 2007
      • 99
      • Country: Poland

      #3
      yes, i do
      Audi 90 quattro '88 4.2V8 on VEMS
      Audi S4 C4 Avant 2.2T '92 @ 2,5TDI

      Comment

      • lini
        S2Forum Enthusiast
        • May 2007
        • 159
        • Country: Slovenia

        #4
        Broken wire. Seen some realy bad motronic conectros lateley. Pins oxidized so much they brake away. Take out motronic and mesure both lines resistance.
        S2+AAN in progress (again), BMW 3 compact

        Comment

        • button
          S2Forum Fanatic
          • Dec 2007
          • 99
          • Country: Poland

          #5
          Where is situated this G62 sensor? In water manifold, (4 pin sensor) or in the other place? I have motronic diagram and G62 is draw on it as 2 pin sensor.

          Maybe i bought wrong sensor?
          Audi 90 quattro '88 4.2V8 on VEMS
          Audi S4 C4 Avant 2.2T '92 @ 2,5TDI

          Comment

          • UrS4boy
            S2Forum Obsessed
            • Feb 2006
            • 11859
            • Country: Canada

            #6
            Originally posted by button
            Where is situated this G62 sensor? In water manifold, (4 pin sensor) or in the other place? I have motronic diagram and G62 is draw on it as 2 pin sensor. Maybe i bought wrong sensor?
            Maybe. Have a read on this:

            http://forums.audiworld.com/s4s6/msgs/148742.phtml
            RS2'd 93 UrS4 5 spd sedan
            94 UrS4 V8 6 spd manual avant

            Comment

            • button
              S2Forum Fanatic
              • Dec 2007
              • 99
              • Country: Poland

              #7
              OK. Now I know that sensor which i bought was wrong - it was 4 pin sensor.
              Audi 90 quattro '88 4.2V8 on VEMS
              Audi S4 C4 Avant 2.2T '92 @ 2,5TDI

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