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NOT getting up to temperature

Discussion in 'A3/S3 Forum (8L Chassis)' started by hobo_mofo, Feb 12, 2012.

  1. hobo_mofo
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    hobo_mofo New Member

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    [Feb 12, 2012]
    Hi,

    Over the last couple of weeks my A3 has been taking ages to finally get to 90 degrees. Sometimes im driving for 30 mins and its not even 90 degrees. When it eventually get there it sometimes drops and fluctuates. Coolant is fine. The car is due a service soon so im gonna get it seen to but.....

    Does anyone know what the problem is?

    Thanks
    #1
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  3. AGU-TURBO
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    AGU-TURBO Audi a3 1.8t AGU

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    [Feb 12, 2012]
    More than likely you'r thermostat wants replacing. After 10-15 minutes of driving it should be upto 90
    #2
  4. S3featesV9
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    S3featesV9 Active Member

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    [Feb 12, 2012]
    Thermostat. Stuck open, so coolant is constantly being cooled whilst driving.
    #3
  5. <tuffty/>
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    <tuffty/> Badger 5 Edition Staff Member Moderator

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    [Feb 12, 2012]
    Blimey... there should be a prize for someone posting the millionth 'not getting to temp' thread lol...

    I have lost count of how many of these have been posted over the past month or so ;P

    As said bud, thermostat is a very common fault as is the coolant temp sensor... if changing the stat doesn't fix it then changing the CTS should...

    <tuffty/>
    #4
  6. egesford
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    egesford Member

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    [Feb 12, 2012]
    is it just me or are these thermostats complete pants, mine went, so i replaced it with a motorad one, which doesnt open. so i replaced that with a genuine audi one, which after 1 week, i think is stuck open
    #5
  7. AGU-TURBO
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    AGU-TURBO Audi a3 1.8t AGU

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    [Feb 12, 2012]
    Yes, Mines f**ked to lol
    #6
  8. hobo_mofo
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    hobo_mofo New Member

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    [Feb 12, 2012]
    i thought it might of been the thermostat. Read a few similar threads but wanted to make sure.

    Cheers all
    #7
  9. *Rich*
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    *Rich* Professional

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    [Feb 12, 2012]
    I'll save starting another thread then, mines also stuck open :)
    #8
  10. hobo_mofo
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    hobo_mofo New Member

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    [Feb 12, 2012]
    Would this by any chance have something to do with my **** MPG?
    #9
  11. Alex C
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    Alex C Well-Known Member VCDS Map User

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    [Feb 12, 2012]
    stuck open thermostat -> cold engine -> **** mpg
    #10
  12. S3featesV9
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    S3featesV9 Active Member

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    [Feb 12, 2012]
    Yeah. Car will be injecting more fuel (to warm up the engine). I was getting about 22mpg. Then once changed it rose to 28 within a week.
    #11
  13. sportquattro
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    sportquattro Active Member

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    [Feb 12, 2012]
    Just to add to the list mines sitting at 80 deg for last week, but is in for a service tomorrow so will be sorted then. They do seem to fail with frightening rapidity though.
    #12
  14. hobo_mofo
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    hobo_mofo New Member

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    [Feb 12, 2012]
    Ok thats good to hear. Hopefully see an increase of 19mpg. Thanks all
    #13
  15. tubby-ben
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    tubby-ben Member

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    [Feb 12, 2012]
    mines 23mpg at mo, usually getting 32mpg
    #14

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