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  1. #1
    3rd Gear

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    Help - coolant warning light on S3

    Hi All,

    As per title I got the horrible beeps and coolant warning symbol on the DIS this morning when starting up. Coolant level seems fine and this disappeared when I switched off the ignition and started up again. Any idea if why this might have happened?

    Cheers,

    B.

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  3. #2
    6th Gear

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    knackered expansion tank sensor?


  4. #3
    hud at ye bam

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    Common fault on a cold morning. Apparently.
    [/sarcasm]

  5. #4
    Aky
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    Aky

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    I had this on my golf - just had to top it up ever so slightly & it went off.

  6. #5
    AL_B's Avatar
    6th Gear

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    We had this on our Golf GTi Anni.

    1st time - turned out to be Coolant Temp Sensor
    2nd time - Water pump
    3rd time - Coolant level sensor

    Finally, all is ok now.
    '07 Phantom Black S3 - '07 to now - Bucket Seats, FBMFSW, BOSE, Symphony II+, Cruise Control, Elec Folding Mirrors, Front Centre Armrest, Rear Armrest & Through Load, Interior Light Pack, Luggage Pack, Reversible Boot Mat, Luggage net.
    '02 Silver S3 (225bhp) - '02 to '07
    '99 A3 1.8T - '99 to '02

    '11 Rising Blue Golf R - '12 to now - 19" Black Talladega's
    '52 Black Golf GTi MkIV Anniversary - '03 to '12

  7. #6
    C_Audiboy's Avatar
    Vroom Vroom

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    Quite a common A3 8L problem...... a coupla threads here should explain:-

    Coolant warning

    coolant warning on start up

    Hope this helps.......
    -------------------------

    987 Boxster 2.7 (05) - Current
    A3 2.0T Quattro S-Line (55) - gone
    S3 Quattro (02) - gone

    -------------------------


  8. #7
    3rd Gear

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    Many thanks all - seems fine at the mo but I'll investigate the other threads.

    Regards,

    B

  9. #8
    3rd Gear

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    OK - read the threads, and thanks for those. If I need to top up must this be coolant or can I put in a small amount of water without worrying?

  10. #9
    C_Audiboy's Avatar
    Vroom Vroom

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    Water is what I used, I think a small amount is fine.
    -------------------------

    987 Boxster 2.7 (05) - Current
    A3 2.0T Quattro S-Line (55) - gone
    S3 Quattro (02) - gone

    -------------------------


  11. #10
    Aky
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    Aky

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    small amount of water is fine

  12. #11
    monkeytrousers's Avatar
    2nd Gear

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    yeah ... try 100ml at a time, until it stops the warning going off.
    Audi A4 3.0 TDI Quattro 2008 - Ice Silver

    JUST GONE: BMW 330i M Sport Saloon 2006 - Le Mans Blue

    GONE BUT NOT FORGOTTEN: Audi S3 Quattro 2002 - AMD stage 1 - 261BHP - MTM clutch - Brilliant Black

 

 

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