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  1. #1
    DaveMK^'s Avatar
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    HELP PLS!!!! Just had the 5hr revo trial..

    Ive just had the revo trial done at a reputable garage called vagtech, I know the owner too so I trust him.

    He plugged my S3 into the vagcom and it came back all clear no errors so he did the map.

    I started driving the car and was waiting for the temp to hit 90 but after 3 miles it didn't it was stuck on 70, then after that it started going all the way down to 60!!! no matter how far I drove it stuck on 60 maybe moved up to 65 but thats it.

    Ive only ever seen this problem once in my car (ive had it 4 weeks) and that soon went back up to 90.

    So has the revo trial done something it shouldn't?

    Has my temp sensor gone conviently after the revo?

    What damage am I doing by driving the car? Im not driving it past 3k at the mo.

    Any speed responses greatly appreciated!!!

    Thanks

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  3. #2
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    It's likely to be either the temp sensor or the thermostat
    03 Ebony black S3, Dieselgeek short shift, its started..

  4. #3
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    It is probably just coincident that it happened after the revo trial, if you've had it only 4 weeks its possible that it was on its way out before
    03 Ebony black S3, Dieselgeek short shift, its started..

  5. #4
    DaveMK^'s Avatar
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    Ive done some searches on the forum and it seems a common problem!

    Am I doing damage by driving it? I will get i to Audi tomorrow and make use of my warranty

  6. #5
    Tastyterrier's Avatar
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    Just don't rag it to be safe, v probably the thermostat.
    A3 1.8TQS: Supersport Springs and Shocks, Xenons, BMC Filter, 18" OEM TTV6's, Bailey DV, N75J and Phase 1 Custom Code.

  7. #6
    voorhees's Avatar
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    common fault coolant tempature sensor (along with coilpacks,drivers door switch,rusty roof rails and bottom of doors,strips)
    every 10 k is the recommended change
    I'm clean tonight (no crack)

  8. #7
    DaveMK^'s Avatar
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    Quote Originally Posted by voorhees
    I'm clean tonight (no crack)
    ;-) thanks

  9. #8
    Prawn's Avatar
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    My thermostat has been stuck open for months now!

    Unless im in traffic, the car will never heat up to 90 at all, and only reaches 65-70 degrees.

    Its not an issue, and shouldnt effect how you drive it AT ALL!

    Go enjoy your 5 hour trial! Then realise that Revo is too harsh and get a custom code map
    -------------------------------------------------------------------------------------------------

    Prawns TFSI Turbo'd 1.8T Track Car

    But I know nothing so ignore me.

  10. #9
    Tastyterrier's Avatar
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    Custom code all the way baby!
    A3 1.8TQS: Supersport Springs and Shocks, Xenons, BMC Filter, 18" OEM TTV6's, Bailey DV, N75J and Phase 1 Custom Code.

  11. #10
    DaveMK^'s Avatar
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    thanks for the help guys :-)

  12. #11
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    Dont forget to post when you have sorted the problem to let us know what it was
    Audi A6 C4 2.6 SE
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    164K and still going strong !

  13. #12
    DaveMK^'s Avatar
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    Quote Originally Posted by 96a6v6
    Dont forget to post when you have sorted the problem to let us know what it was
    Will do bud!

  14. #13
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    Quote Originally Posted by Prawn
    My thermostat has been stuck open for months now!

    Unless im in traffic, the car will never heat up to 90 at all, and only reaches 65-70 degrees.

    Its not an issue, and shouldnt effect how you drive it AT ALL!
    ummm..this is rubbish, your coolant temp pretty important, i'd get a new thermostat quick

  15. #14
    jesters3's Avatar
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    Personally go back to your garage and ask them to quickly run another VAG.COM scan so that they are aware that something has occured and may be able to help further.
    Jester
    "On my second S3 and loving it. RS3 here I come!!!"

  16. #15
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    Quote Originally Posted by jonS3
    ummm..this is rubbish, your coolant temp pretty important, i'd get a new thermostat quick
    Agreed. If you didnt need a thermostat then Audi wouldnt fit one!
    A6 3.0 TDI.

  17. #16
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    Give Jon a quick ring , Sure he will have a quick look for you,,

    If its only wound the from yours cant hurt !

    Thanks

  18. #17
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    Vagcheck is a good company , it is Wak
    Very clever guy
    But the remap can bring out the worst in the sensors if they are on their way out
    That is why you have a diagnostic check before and after
    The chances are it will be the coolant temp sensor as I said all sensors need to be at their best
    Coolant temp sensors are one of the most common to fail
    We buy them in 100 at a time as they are so common to fail
    Do it staright away before the trial ends , it is fun
    Sarah

  19. #18
    DaveMK^'s Avatar
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    Just taken the car to Audi, they diagnosed it as the temp sensor and possibly the thermostat, they have ordered both in and will fit them for me.

    Thanks for the help everyone.

  20. #19
    Bong Water's Avatar
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    Quote Originally Posted by Prawn
    My thermostat has been stuck open for months now!

    Unless im in traffic, the car will never heat up to 90 at all, and only reaches 65-70 degrees.

    Its not an issue, and shouldnt effect how you drive it AT ALL!

    Go enjoy your 5 hour trial! Then realise that Revo is too harsh and get a custom code map
    I would change it if I were you, my car runs even smoother than before as the oil is now also getting to optimum temp as before it wasnt as the engine was being constantly cooled by the thermostat being stuck open
    Skint because of my car, the forums made me do it

  21. #20
    DaveMK^'s Avatar
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    Update for those who are having similar problems, Audi replaced the Temp sender not the thermostat as that was fine.

    It now warms up to 90 in around 5 mins and stays there.

  22. #21
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    how much did it cost if you dont mind me asking as i just recently had the same problem driving back on the motorway the other day temp seemed to go to about 65-70, wasnt sure how bad this was to my engine? like you i had a check on diagnostics which didnt come up with anything. do you think it would be best to go to my audi dealer?

  23. #22
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    Quote Originally Posted by DaveMK^
    Update for those who are having similar problems, Audi replaced the Temp sender not the thermostat as that was fine.

    It now warms up to 90 in around 5 mins and stays there.
    Cool beans !!

  24. #23
    DaveMK^'s Avatar
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    Well it was all done under warranty so didn't cost me a penny but I think the bill was around 120 from audi. Labour was the killer!

    They gave me a brand new A3 TDI S-Line for the day and even Valeted my car before I came back :-)

  25. #24
    Stewart's Avatar
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    Quote Originally Posted by DaveMK^
    Well it was all done under warranty so didn't cost me a penny but I think the bill was around 120 from audi. Labour was the killer!

    They gave me a brand new A3 TDI S-Line for the day and even Valeted my car before I came back :-)
    What did you think of the A3?
    Rarrrr! I'm not Lesdyxic!

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  26. #25
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    have you found any gains or difference in the performance after gettng the cahnge

  27. #26
    DaveMK^'s Avatar
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    The car seems to drive a lot smoother, and it seems to idle alot better in the morning.

    The A3 was really nice, interior was very smart and felt like I was in a cockpit. The steering was ridiculously light though it felt like I was turning the wheels on ice. Lots of torque though

  28. #27
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    A faulty coolant temp sensor can cause the following:

    rough running at idle
    engine running rich
    cold start issues
    low fuel economy

    So I would imagine there has been a difference to the way the car drives!
    Kev

    Revo Technik
    www.revotechnik.com

  29. #28
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    what sort of cold start issues?

  30. #29
    maxlbrown's Avatar
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    The temp sensor reports to the ECU how hot the car is and regulates the amount of fuel delivered based on all the available data. A duff coolant or air temp sensor will blow the fuel delivery out of whak therefore any remapping work done will be pointless. these are not expensive items or really difficult to replace so may as well get them done they do make a huge difference even on a standard car.
    A6 2.4Se Man
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  31. #30
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    hummm interesting. basically i have a remapped s3 which doesnt feel like one atal at the mo. seems sluggish and the temp when driving on the motorway stays very low, the turbo doesnt seem to kick in as much as it did before. could these all signal the thermostat goin/gone?

  32. #31
    Aky
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    Have you tried un-plugging your MAF? any difference?

  33. #32
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    i havent tries that. it was suggested but when i had the diagnostics done it was given the all clear. do you thihk its worth trying that anyway

  34. #33
    Bong Water's Avatar
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    Quote Originally Posted by S3 Rav
    hummm interesting. basically i have a remapped s3 which doesnt feel like one atal at the mo. seems sluggish and the temp when driving on the motorway stays very low, the turbo doesnt seem to kick in as much as it did before. could these all signal the thermostat goin/gone?
    Nip outside and pop the bonnet, have a look to the rear of your engine in front of the bulk head in the middle you should see a blue elctronic connector, unplug the plastic clip that you can see and remove the electronic connector, remove the temp sender, only a small amount of water will 'dribble' out. Pop in a new temp sender and O ring, I paid 28 for both from Audi

    If that doesnt sort the problem then its the thermostat which was the case with mine, soon as it was replaced everything heats up properly and the car runs much smoother and slightly better MPG's
    Skint because of my car, the forums made me do it

  35. #34
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    thanks mate will give that a try

  36. #35
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    We order in loads of the temp sensors in at a time as these are so so common to fail
    I would do one no matter what if it had the old syle one in
    They are approx £22.50 + VAT dead easy to do , just make sure you have the engine cold and takes 10 mins if your unlucky
    The hardest thing is finding them
    Sarah

  37. #36
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    Quote Originally Posted by AwesomeSarah
    We order in loads of the temp sensors in at a time as these are so so common to fail
    I would do one no matter what if it had the old syle one in
    They are approx 22.50 + VAT dead easy to do , just make sure you have the engine cold and takes 10 mins if your unlucky
    The hardest thing is finding them
    Sarah
    Well said !!

  38. #37
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    Quote Originally Posted by revomike
    Well said !!
    Ooh thank you
    Say hi to Kev for me give him a hug and tell him I am sure it is his round
    Sarah

  39. #38
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    Will do....

    Shandy for him (light weight ) lol

    Last edited by revomike; 21st February 2008 at 17:09.

  40. #39
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    Quote Originally Posted by AwesomeSarah
    Vagcheck is a good company , it is Wak
    Very clever guy
    But the remap can bring out the worst in the sensors if they are on their way out
    That is why you have a diagnostic check before and after
    The chances are it will be the coolant temp sensor as I said all sensors need to be at their best
    Coolant temp sensors are one of the most common to fail
    We buy them in 100 at a time as they are so common to fail
    Do it staright away before the trial ends , it is fun
    Sarah
    Hi Sarah,
    Vagtech are a different company to us!
    Last edited by Wak-VAGCHECK; 21st February 2008 at 23:59.

 

 

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