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  1. #1
    jcb
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    No temperature on gauge (dead sensor)?

    If it is dead and has been driven like this is that a problem?
    it seems very hot but the 2nd fan isnt kicking in

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  3. #2
    Bradderz_1988's Avatar
    Dont replace it, Upgrade it !!

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    Whats it reading on the hvac ?? Mine displays 30 every now and then when it drops off and also reads 30'c from cold so presuming its the sensor.
    1999 Audi A4 1.8T Quattro Sport - Volcano Black

    Mods - Frankenturbo F21 Kit - 3" MAF - Saab Reds - THS Decat - Non Res Milltek - ECS Crank Pulley - 034 Snub + Bracket/Gbox Mounts - 1Z/S2 Clutch + Flywheel - 007p - ICM + EVAP Delete - PFR6Q Plugs - S4 B6 345mm Brakes - 300mm Rear Brakes - Goodridge Hoses - LCR Splitter -S4 Bumbers + Skirts/Mouldings - OEM Xenons - Apikol Diff mounts - Polytek'd Rear Diff Mount
    To do/planned -Eibach pro's - GT2871/76R + FMIC + ME7 (maybe) + Engine/stroker Build

  4. #3
    jcb
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    no reading , needle is unmoved
    (by HVAC I assume you mean gauge?)

  5. #4
    Bradderz_1988's Avatar
    Dont replace it, Upgrade it !!

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    No a/c control if you press recirc and the up button for vent distribution then go to 49 then press recirc it will give you the actual temperature in digits.
    1999 Audi A4 1.8T Quattro Sport - Volcano Black

    Mods - Frankenturbo F21 Kit - 3" MAF - Saab Reds - THS Decat - Non Res Milltek - ECS Crank Pulley - 034 Snub + Bracket/Gbox Mounts - 1Z/S2 Clutch + Flywheel - 007p - ICM + EVAP Delete - PFR6Q Plugs - S4 B6 345mm Brakes - 300mm Rear Brakes - Goodridge Hoses - LCR Splitter -S4 Bumbers + Skirts/Mouldings - OEM Xenons - Apikol Diff mounts - Polytek'd Rear Diff Mount
    To do/planned -Eibach pro's - GT2871/76R + FMIC + ME7 (maybe) + Engine/stroker Build

  6. #5
    jcb
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    they want £33 for a new one!!
    eBay have then for £7. is that a disaster waiting to happen!?

  7. #6
    "Stick a V8 in it!"

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    yeh i'd stick to genuine, speak to Jason.S on here he'll get you some discount.

    2000 A4 1.8T Sport Quattro Avant, Berry Pearl
    2000 A4 1.8T Sport Quattro Saloon, Black-ish
    1997 S4 - PPC £999 Challenge Track Car Build
    TD5 Land Rover Defender build


  8. #7
    jcb
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    TPS are selling stuff at Audi dealer prices.

  9. #8
    Bradderz_1988's Avatar
    Dont replace it, Upgrade it !!

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    Theres meyle ones on ebay for about £9 iirc
    1999 Audi A4 1.8T Quattro Sport - Volcano Black

    Mods - Frankenturbo F21 Kit - 3" MAF - Saab Reds - THS Decat - Non Res Milltek - ECS Crank Pulley - 034 Snub + Bracket/Gbox Mounts - 1Z/S2 Clutch + Flywheel - 007p - ICM + EVAP Delete - PFR6Q Plugs - S4 B6 345mm Brakes - 300mm Rear Brakes - Goodridge Hoses - LCR Splitter -S4 Bumbers + Skirts/Mouldings - OEM Xenons - Apikol Diff mounts - Polytek'd Rear Diff Mount
    To do/planned -Eibach pro's - GT2871/76R + FMIC + ME7 (maybe) + Engine/stroker Build

  10. #9
    jcb
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    saw those. and some febi ones.

    TBH I do not want this to turn into a money pit

    if the sensor was goosed why would it run hot?
    I assumed it would run cool if anything as I expected the fan to be on permanently.
    Also done a full scan in VAG and no code for ECT sensor....strange?

  11. #10
    Bradderz_1988's Avatar
    Dont replace it, Upgrade it !!

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    No code here niether aslong as the stat is working and the viscous fan is running id say your ok the electric fan is there as a back up and when the A/C is switched on iirc
    1999 Audi A4 1.8T Quattro Sport - Volcano Black

    Mods - Frankenturbo F21 Kit - 3" MAF - Saab Reds - THS Decat - Non Res Milltek - ECS Crank Pulley - 034 Snub + Bracket/Gbox Mounts - 1Z/S2 Clutch + Flywheel - 007p - ICM + EVAP Delete - PFR6Q Plugs - S4 B6 345mm Brakes - 300mm Rear Brakes - Goodridge Hoses - LCR Splitter -S4 Bumbers + Skirts/Mouldings - OEM Xenons - Apikol Diff mounts - Polytek'd Rear Diff Mount
    To do/planned -Eibach pro's - GT2871/76R + FMIC + ME7 (maybe) + Engine/stroker Build

  12. #11
    jcb
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    so its not the sensor or it is the sensor but not an issue to run it like that?

  13. #12
    "Stick a V8 in it!"

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    Sensor for the fan is totally unrelated to the sensor for the dash.

    The CTS on the back of the head supplies a signal for the guage and a signal for the ECU. If this is faulty you'll have **** economy and probably dodgy emissions as it'll run rich all the time.

    The electric fan is controlled by a 4 pin sensor in the bottom radiator hose, and/or the Aircon controller. The viscous fan should run all the time. If you switch the AC on and the electric fan doesnt start then its faulty/broken/unplugged/blown its fuse...

    Is this the TQS your on about, or something else?

    2000 A4 1.8T Sport Quattro Avant, Berry Pearl
    2000 A4 1.8T Sport Quattro Saloon, Black-ish
    1997 S4 - PPC £999 Challenge Track Car Build
    TD5 Land Rover Defender build


  14. #13
    wallace78's Avatar
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    i didnt get a book with my car how do u put the aircon on iv a funny feeling its not working and were abouts is the sensor in the ingine bay,chees

  15. #14
    "Stick a V8 in it!"

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    Facelift or Prefacelift?

    Facelift runs the AC all the time unless its below 5c or you press the ECON button.

    Prefacelift has a "frost" symbol on the climate unit to turn on the AC.

    2000 A4 1.8T Sport Quattro Avant, Berry Pearl
    2000 A4 1.8T Sport Quattro Saloon, Black-ish
    1997 S4 - PPC £999 Challenge Track Car Build
    TD5 Land Rover Defender build


  16. #15
    wallace78's Avatar
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    cheers m8 mines the facelift

  17. #16
    Bradderz_1988's Avatar
    Dont replace it, Upgrade it !!

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    Yeah i couldnt sus that one when i got it so i make sure the econ button is lit up all the time.
    1999 Audi A4 1.8T Quattro Sport - Volcano Black

    Mods - Frankenturbo F21 Kit - 3" MAF - Saab Reds - THS Decat - Non Res Milltek - ECS Crank Pulley - 034 Snub + Bracket/Gbox Mounts - 1Z/S2 Clutch + Flywheel - 007p - ICM + EVAP Delete - PFR6Q Plugs - S4 B6 345mm Brakes - 300mm Rear Brakes - Goodridge Hoses - LCR Splitter -S4 Bumbers + Skirts/Mouldings - OEM Xenons - Apikol Diff mounts - Polytek'd Rear Diff Mount
    To do/planned -Eibach pro's - GT2871/76R + FMIC + ME7 (maybe) + Engine/stroker Build

  18. #17
    jcb
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    Quote Originally Posted by aragorn View Post
    Is this the TQS your on about, or something else?
    A6 2.8Q
    but the A6 forum is like a morgue!

    will check the AC

 

 

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