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  • Oil warning light coming on

    Every few km I drive, the oil light comes on but the car has oil. It's a 1997 S6.
    I hope it's not the oil pump. Can anyone tell me where the oil pressure switch is located, it might be a faulty switch
    [SIGPIC]1997 Ur-S6 SMS Revo S

  • #2
    is this since you blocked up the turbo oil return line?

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    • #3
      Only a observation of your post ref oil restriction to turbo. If anyone gives you advice on this problem, will you ignore this to.

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      • #4
        You should listen to the experts mate

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        • #5
          do you have an oil pressure gauge?

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          • #6
            Hi, I have a AAN S4 and have the same problem. Oil pressure gauge show normal values. The engine is running smooth and quite, but the oil warning on board computer randomly appears. I suspect oil warning light sensor, but haven't have the time to replace it.

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            • #7
              Originally posted by audi660 View Post
              Every few km I drive, the oil light comes on but the car has oil. It's a 1997 S6.
              I hope it's not the oil pump. Can anyone tell me where the oil pressure switch is located, it might be a faulty switch
              You might want read these:

              20VT Oil Pressure Sender, Switches, Wiring and Check Valves (with UPDATES):

              http://forums.quattroworld.com/s4s6/msgs/96161.phtml

              Oil Pump, Temperature Sender, Pressure Relief Valve Info.:

              http://forums.quattroworld.com/s4s6/msgs/93029.phtml



              RS2'd 93 UrS4 5 spd sedan
              94 UrS4 V8 6 spd manual avant

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              • #8
                Thanks Urs4boy!
                In my case I was planning to change F22, because warning appears at idle also. F1 should be taken into consideration above 2000 rpm.

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                • #9
                  Could also be something wrong with the cluster "board computer" itself(bad solder etc.).
                  Audi UrS4 Avant 2.5 20vt - twincharged - Project
                  Audi 80q B4 Sedan 2.2 20vt - Daily user
                  BMW 320d Touring e91 M-Sport - Daily user
                  BMW 740iA e38 - Project

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                  • #10
                    Yes, if the warning still appears after F22 is changed I will check the wiring and the board computer cluster.

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