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Thermostat question

Mrt4x4 Feb 21, 2014

  1. Mrt4x4

    Mrt4x4 Member

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    Only had the car 5 days, it seems to take forever to warm upto 90 them seems to rise and fall between 70-90 depending on heating controls driving style etc, this just a dodgy thermostat you think
     
  2. CazzaVR

    CazzaVR Member

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    Sounds like it. Also worth changing the coolant temp sensor- easiest job in the world!
     
  3. Marshall878

    Marshall878 Member

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    Mine needs doing also :(

    Bleed procedure for the system? Is it worth doing a full flush and filling with new coolant?
     
  4. Gary_808

    Gary_808 Member

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    I need to do mine, never gets above 70degrees :( I have it just haven't got round to swapping it,

    Also got a new plastic bit for 3quid, thought may as well
     
  5. JoeeS3

    JoeeS3 Active Member

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    ive just done mine. its quite a fiddly job but can be done if you have small hands. try changing the cts first as thats really easy. then if that fails the thermostat. i flushed my system and filled with new coolant when i changed the thermostat as it just made more sense to do it then.
     
  6. Mrt4x4

    Mrt4x4 Member

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    Would you guys suggest changing the sensor first then, ive got warranty so wondering whats worth doing / claiming for
     
  7. Mrt4x4

    Mrt4x4 Member

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    Also is it better to get the audi sensor for £15 or another for £6 with 12month warranty
     
  8. CazzaVR

    CazzaVR Member

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    Definitely!
     
  9. bazil

    bazil BOOM BOOM

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    Ive been putting off doing my thermostat for 3 maybe 4 years now

    Temp doesnt move off the rest on the motorway lol
     
  10. CazzaVR

    CazzaVR Member

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    Surely that's just gonna make it run rich the whole time?
     
  11. Gary_808

    Gary_808 Member

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    Yup :( mines only been like it abit, but terrible mpg!
     
  12. S3Hendry

    S3Hendry Member

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    My temp gauge is all over the place.. When I first got the car, the gauge was lifeless, didn't move, so decided ill swap the temp sensor for a new one, which fixed it for, hmm 50 miles lol so think maybe a thermostat swap is my next move, only problem is I have no f@@king clue where's it's located, anyone want to shed some light on this?
     
  13. Mrt4x4

    Mrt4x4 Member

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    Thank you all for your help greatly appreciated
     
  14. Mrt4x4

    Mrt4x4 Member

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    Where is the sensor located guessing around the expansion tank
     
  15. Mrt4x4

    Mrt4x4 Member

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  16. Mrt4x4

    Mrt4x4 Member

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    Wasnt the temp sensor still drops
     
  17. nicko86

    nicko86 nicko86

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    just bought a new one for my s3, with intention of doing it myself.....its a right b***ard to get too, although only two 10mm bolts you cant do this job on your back. ive booked mine in to save the hassle, a mechanic with the right tools/surroundings will do it in 1/2 hour so worth saving me the hassle!
     

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