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  1. #1
    The Doctor's Avatar
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    Thermostat or temp sender?

    Hi guys, recently my temp gauge is only reaching 80 degrees and it takes a good 10mins from cold to get there. This has started happening over the past couple of months I guess. Before, it would sit bang on 90 degrees as I would expect. I had the temp sender replaced about 15 months ago which was triggered by a warning on the dash if I remember correctly (I now have the green one) but I'm not sure if this would be the cause of my new problem or maybe it could be the thermostat? Anyone shed some light on this please. Either way I'll probably fix it myself, just want to make sure I'm replacing the correct bit! Thanks.

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  3. #2
    finesse's Avatar
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    green temp sender if updated part

    your issue is the thermostat

    get a genuine one from Audi + o-ring and g12 plus

    Thermostat replacement procedure..>> - AudiWorld Forums

  4. #3
    BASS 666's Avatar
    BMW aye right dead on..

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    i had the same problem and i changed my stat yesterday job done..
    2002 1.9 tdi 130ish brake a4. full reiger body kit, 19 inch rs6 avant rims, eibach springs, home made grill, full leather interior, centre arm rest, quad powerflow exausts, a few engine mods, chrome door mirrors, aero wipers, s line door blades.

  5. #4
    The Doctor's Avatar
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    Nice one lads. Thanks. Got a part number & price?

  6. #5
    NoggyS3's Avatar
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    I would also say its the stat. My S3 did same thing, changed stat and hey presto all sorted

    Stat and O-ring is around 4

    Not sure on the G12 as a mate gave me a bottle.

    You may as well get a new dipstick funnel as i can guarantee it will disintegrate as soon as you touch it. They get very brittle over time.

    Part No. 06A 103 663 B 3.50 or there abouts.
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    Standard Nogaro Blue 21O AMK S3

  7. #6
    danger S3's Avatar
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    sorry to be an idiot but what's the stat?

  8. #7
    BASS 666's Avatar
    BMW aye right dead on..

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    thermostat..
    2002 1.9 tdi 130ish brake a4. full reiger body kit, 19 inch rs6 avant rims, eibach springs, home made grill, full leather interior, centre arm rest, quad powerflow exausts, a few engine mods, chrome door mirrors, aero wipers, s line door blades.

  9. #8
    Jonesy's Avatar
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    I had similar issues which were fixed by changing the temp sender. Easy job just make sure the engine is cool before you remove it otherwise your get covered in boiling hot coolant like myself :/
    2001 Audi S3 - Facelift - Revo remap - Forge 007p DV - BMC Panel Filter- Type R Ariel - Aero wipers - n75j valve.

  10. #9
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    Temp sensor oh yes oops

  11. #10
    BASS 666's Avatar
    BMW aye right dead on..

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    did you delete my last mesg ?
    2002 1.9 tdi 130ish brake a4. full reiger body kit, 19 inch rs6 avant rims, eibach springs, home made grill, full leather interior, centre arm rest, quad powerflow exausts, a few engine mods, chrome door mirrors, aero wipers, s line door blades.

  12. #11
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    Its a good idea to disconnect the battery as the thermostat is right behind the live connection on the alternator, coming from the battery. Else cover the connection. Audi specialist Abtech fried mine.

  13. #12
    bengal's Avatar
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    Quote Originally Posted by pj123 View Post
    Its a good idea to disconnect the battery as the thermostat is right behind the live connection on the alternator, coming from the battery. Else cover the connection. Audi specialist Abtech fried mine.
    I'll second this as i fried mine when i did my thermostat

  14. #13
    The Doctor's Avatar
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    Already replaced the diptsick tube last week when I did the PCV simplification/catch can mod. And yes, the old one snapped as I expected it to! Forunately I prevented any bits from dropping into the sump.

    Good advice re battery disconnection. Presumably I only need to disconnect one terminal? Only problem is I don't think I have the radio code. Any way I can find this out before disconnecting the battery?

  15. #14
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    yes just one terminal, you should always disconnect the negative from a battery first (and its always the last to go back on). Covering the alternator terminal could be your other option, plus being extra careful!
    Paul

  16. #15
    The Doctor's Avatar
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    -ve terminal is what I thought, given the -ve earth.

    Anyone got a thermostat part number please?

  17. #16
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    Part no from GSF is 931vg0450. 11.46 including vat...
    2002 S3 8L, FORGE 007, R-TECH RE-MAPP, MILTEK CAT BACK NON-RESONATED, JETEX CONE FILTER AND 260 BHP ISH.......

  18. #17
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    Love this forum! Thanks guys.

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    I will be attempting to replace my stat soon, after having the exact same symptoms. I bought the following last night from Audi:

    Thermostat - 24
    Rubber O-ring - 3
    1L G12 coolant - 7.

    These are approximate prices (give or take 1), and include VAT.

  20. #19
    The Doctor's Avatar
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    Just checked. Seems to be a different part number now?

    176VG0110THERMOSTAT A3 Petrol 9/96 >

  21. #20
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    As above, number 6 for APY, AMK & BAM

  22. #21
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  23. #22
    luke2702's Avatar
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    Quote Originally Posted by The Doctor View Post
    Just checked. Seems to be a different part number now?

    176VG0110THERMOSTAT A3 Petrol 9/96 >
    Only got mine last week. So dont understand...
    2002 S3 8L, FORGE 007, R-TECH RE-MAPP, MILTEK CAT BACK NON-RESONATED, JETEX CONE FILTER AND 260 BHP ISH.......

  24. #23
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    going to do my stat this week, is one like this ok? Audi - Euro Car Parts UK

    or would it have to be genuine audi?

  25. #24
    bengal's Avatar
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    The one from euro should be fine but they wont be much more if any from the dealers so it might be worthwhile getting one from them.

  26. #25
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    I heard they were 24 from the dealers.. which is triple the price, if thats true i'll go non gen, if dealer is close to the 8.99 il get oem

  27. #26
    "Stick a V8 in it!"

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    Just go with a good brand.

    I got mine from AllGermanParts, was just over a tenner iirc.

    A nice rule of thumb is to look at the stat itself, if the manufacturer has bothered to put their name on it, its probably reasonable quality.

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  28. #27
    SiGainey's Avatar
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    It was something like 18 quid when I went to get one last week from the dealer, so I went to a local factor and got one for 4 quid inc VAT. The best tip I can give you for replacing it is to certainly remove the battery negative and also remove the supply lead from the alternator, then you can get a 5mm allen key socket UNDER the thermostat housing and it makes the job a real easy one - took me half an hour including changing the coolant for new G12 stuff

  29. #28
    bengal's Avatar
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    I too got one for 5 from a local motor factor which lasted 2 months so i got another one for 5 from a different motor factor which lasted less than 2 months so i got one from gsf for 13 and its been fine for 6 months maybe i was unlucky but its something to think about.

  30. #29
    finesse's Avatar
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    TPS or Audi

 

 

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