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AAARGH!!!! 2001 S3 temp issues and more!!!

Discussion in 'A3/S3 Forum (8L Chassis)' started by S3 Costs owner life, Feb 15, 2011.

  1. S3 Costs owner life
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    S3 Costs owner life New Member

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    [Feb 15, 2011]
    Any thoughts on the following symptoms for a 2001 S3
    • Car struggles up to get to and does not maintain a normal running temperature
    • ECU light on
    • Below average MPG 24ish – careful driving – used to get more
    • The air con does not know what temperate it is, I.E whatever temp I set it at it blows about the same and the air does not get hot.
    Any suggestions as to what will be causing these issues and which I should tackle first?

    Many thanks for the help!!!!!
    #1
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  3. AttackOfTheEddieMunster
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    AttackOfTheEddieMunster Member

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    [Feb 15, 2011]
    Having been through a similar experience, point 1 will be down to the thermostat, resulting in point 4, and 2 and 3 could be the CTS incorrectly reading the coolant temperature and therefore running slightly rich. Thermostat is about £24 from Audi, the CTS around £8-£9 from any parts retailer.

    Note - I had a "genuine" Audi thermostat fitted by a dealer, didn't resolve the problem. Collected and fitted a "genuine" Audi thermostat myself today, problem resolved. I did the CTS too, purely because I had my tools out and it's only a 5 minute job.
    #2
  4. beachbuggy
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    beachbuggy Well-Known Member

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    [Feb 15, 2011]
    Will almost certainly the thermostat.
    #3
  5. stu_b
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    stu_b Member

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    [Feb 24, 2011]
    Is there any how to guides on here on replacing the thermostat?
    #4
  6. s3dave
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    s3dave TFSI Hybrid

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    [Feb 24, 2011]
    Last edited: Feb 24, 2011
    #5
  7. Sandip
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    Sandip Well-Known Member

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    [Feb 24, 2011]
    #6
  8. Speedy Steve
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    Speedy Steve Active Member

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    [Feb 24, 2011]
    yep id agree with stat if you have vagcom you can check the temp while running in that then id go for CTS which is a breeze to change
    #7

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