JMB RetrofitsAH Fabrications
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  1. #1
    liam_mcf's Avatar
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    Engine coolant temperature sensor

    Looking for one for a 1996 P Reg 1.8T

    Anyone any ideas where i could pick one up from?

    Been to a car part place round the corner, they have another two sensors but the one i'm looking for!

    Even a part number would be handy, struggling to find the correct one

    Thank you for any help

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  3. #2
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    I can help...what color is your current switch, and does your car have air con?

  4. #3
    liam_mcf's Avatar
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    It does have air con mate, i'm not 100% sure on the colour but i will check when i'm home from work....hopefully in a couple of hours

    thanks!!

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    No worries.

  6. #5
    graham A4's Avatar
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    ANY AUDI DEALERSHIP WILL SUPPLY U THE CORRECT SENSOR ONCE THEY HAVE THE CHASSIS NUMBER, THERE VERY CHEAP I BOUGHT ONE RECENTLY FOR 25 EUROS SO IT B EVEN CHEAPER IN STERLING

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    Can't seem to locate the sensor at all!!

    I know what it looks like......i think

    Been told its located at the rear of the engine bay, sorry but very limited knowledge of engines...

    Anyone point me in the right direction?

    Cheers

  8. #7
    "Stick a V8 in it!"

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    Its at the back of the cylinder head.

    If you look down the gap between the cylinder head and the firewall, you will see a black metal pipe running across the back of the head. In the middle of this pipe there is a round boss with the sensor in, you'll see the electrical plug sticking out the top.

    You'll need to pop the connector off to see the color of the sensor itself.

    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
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  9. #8
    andybnwc's Avatar
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    just out of interest are the green and the blue sensors different and if so in what way as , ive just replaced on both cars the s4 sorted but the other one seems to have made a difference but seems to not move much at all . thanks in advance
    99 Nogaro S4 now black bonnet and roof,blackdiamond discs and pads,Hybrid K04 with uprated actuators ,Rs4 clutch custom lightweight flywheel, esp lightweight pulley set ,Rs4 intake pipes ,rs4 mounts ,full samco hose set,F-hose delete ,BMC carbon induction, full stainless exhaust with de cat pipes, custom chip,18"ultra lights,LED rear clusters,6000k xenons ,LED sides,KW coilovers,powerflex bushes ,Boost guage in pillar pod,isotta steering wheel and gearknob,B&M short shifter

  10. #9
    liam_mcf's Avatar
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    Quote Originally Posted by aragorn View Post
    Its at the back of the cylinder head.

    If you look down the gap between the cylinder head and the firewall, you will see a black metal pipe running across the back of the head. In the middle of this pipe there is a round boss with the sensor in, you'll see the electrical plug sticking out the top.

    You'll need to pop the connector off to see the color of the sensor itself.
    Thank you for this, will have a look when its light tomorrow! Cheers

  11. #10
    "Stick a V8 in it!"

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    Quote Originally Posted by andybnwc View Post
    just out of interest are the green and the blue sensors different and if so in what way as , ive just replaced on both cars the s4 sorted but the other one seems to have made a difference but seems to not move much at all . thanks in advance

    What do you mean by not move much?

    A working CTS/Instrument Cluster will come round to exactly 90c and sit there once warmed up.

    The cluster has a buffer built in so that any temperature in the "normal" range (which is around 80-100c) will show 90, and the guage will only ever move if its outside this range...

    2000 A4 1.8T Sport Quattro Avant, Berry Pearl
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  12. #11
    andybnwc's Avatar
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    it pretty much stays on just above 0 and if i am not driving in traffic amy get to about a quarter, i put a blue sensor in as thats what came out . The old one didnt seem that bad tho
    99 Nogaro S4 now black bonnet and roof,blackdiamond discs and pads,Hybrid K04 with uprated actuators ,Rs4 clutch custom lightweight flywheel, esp lightweight pulley set ,Rs4 intake pipes ,rs4 mounts ,full samco hose set,F-hose delete ,BMC carbon induction, full stainless exhaust with de cat pipes, custom chip,18"ultra lights,LED rear clusters,6000k xenons ,LED sides,KW coilovers,powerflex bushes ,Boost guage in pillar pod,isotta steering wheel and gearknob,B&M short shifter

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

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    faulty thermostat?

    If its all working correctly it should read 90 all the time.

    What does vagcom say its reading?

    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
    liam_mcf's Avatar
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    Ok due to aragorn's spot on description i found it no problem, took the plug off and the sensor is blue in colour.

    Siena would you happen to have one that would do the trick?

    If so let me know a price

  15. #14
    andybnwc's Avatar
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    Quote Originally Posted by aragorn View Post
    faulty thermostat?

    If its all working correctly it should read 90 all the time.

    What does vagcom say its reading?
    ill have a go tmrw if i get chance , where about on vag com will it be read
    99 Nogaro S4 now black bonnet and roof,blackdiamond discs and pads,Hybrid K04 with uprated actuators ,Rs4 clutch custom lightweight flywheel, esp lightweight pulley set ,Rs4 intake pipes ,rs4 mounts ,full samco hose set,F-hose delete ,BMC carbon induction, full stainless exhaust with de cat pipes, custom chip,18"ultra lights,LED rear clusters,6000k xenons ,LED sides,KW coilovers,powerflex bushes ,Boost guage in pillar pod,isotta steering wheel and gearknob,B&M short shifter

  16. #15
    "Stick a V8 in it!"

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    just have a flick thru the engine sensors, its in there somewhere.

    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


  17. #16
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    Quote Originally Posted by liam_mcf View Post
    Ok due to aragorn's spot on description i found it no problem, took the plug off and the sensor is blue in colour.

    Siena would you happen to have one that would do the trick?

    If so let me know a price
    Liam, I have a couple here, will let you know how much tomorrow.

  18. #17
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    Quote Originally Posted by Siena View Post
    Liam, I have a couple here, will let you know how much tomorrow.
    Excellent Siena, thank you!

  19. #18
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    28.75, includes the O-ring.

  20. #19
    liam_mcf's Avatar
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    Thanks, PM sent!

 

 

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