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S3 Engine tempreture not stable. Anyone got a clue? Tried changing the thermostate.

Discussion in 'A3/S3 Forum (8L Chassis)' started by Karliboy, May 23, 2010.

  1. Karliboy

    Karliboy New Member

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    Ok here`s the thing.

    For some time ago the waterpump broke and it almost ruined the damn car.
    We desembled the register and waterpump and it wasen`t much left of the blades on the waterpump. So we flushed the engine trying to get out as much of the blade peaces we could before we re-esembled the new parts. Filled up cooling fluid and checked for air in the system.
    Then we re-esembled the new register/waterpump and the car runs fine and have been for some months, and i guess if there was some air in the system it would have got out by now.:keule:

    The problem now is that the tempreture is not stable at 90¤C. When i drive it drops to about 70 - 80¤C and when i drive downhill for awhile it almost sinks to 60¤C. If i stop the car to a running stand still the tempreture climbes to 90¤C and stays there until i start driving again. It never goes over 90¤C

    I have changed the thermostate that is located close to the airfilter, if you guys know where that is but that didn`t help. Does anyone know whats wrong?

    Sorry for the bad english but hey im from Norway.:whistle2:
     
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  3. Sandip

    Sandip Well-Known Member

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    I think what you have changed is the Temp sender, the thermostat is more near the alternator. It's your thermostat what needs changing:)
     
  4. s3 Hoggy

    s3 Hoggy Whats going on???

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  5. finesse

    finesse Active Member
    VCDS Map User

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  6. Andy´

    Andy´ Member

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    I did send you a PM Karliboy...
     
  7. Welly

    Welly VX220 SC Driver :)

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    Thats classic thermo failue symptoms. End of discussion.... LOL.
     
  8. Karliboy

    Karliboy New Member

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    Thanks for the help guys!
     

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