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  1. #1
    Bradderz_1988's Avatar
    Dont replace it, Upgrade it !!

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    Coolant temp sensor

    Anyone know if audi have changed the temp sensor on the tqs ordered one and its dark green prt no is 059 919 501 where as mine is blue iirc do i need the blue one ?? Only asking as the outlet on the cyclinder head is leaking coolant slightly so thought id get a new sensor whilst im at it also would you recommend fitting a non-gen oil cooler or is it best to fit a genuine ???

    Cheers in advance.
    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

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  3. #2
    Chriscooke's Avatar
    Clueless!

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    My cts was green iirc. I'll have a check later if you like?

  4. #3
    Bradderz_1988's Avatar
    Dont replace it, Upgrade it !!

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    Just had a look and its definately got a blue one, going to jump on etka now as i need to get some more part numbers anyway as tge parts guy at work is hopeless lol
    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

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

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    Had a look and it says blue 4 pin part number - 078 919 501 B Click on it and it says dropped on 01/08/2002 use the part number 059 919 501 which i have, anyone else switched to the green sensor or have you had the blue one ??
    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
    Iceash's Avatar
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    If my needle is jumping while warming up. Is this the sensor I need to order?

  7. #6
    jcb
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    IIRC the plug is different isn't it

    I have a brand new green one sitting here that I bought in error!

  8. #7
    Iceash's Avatar
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    Quote Originally Posted by jcb View Post
    IIRC the plug is different isn't it

    I have a brand new green one sitting here that I bought in error!
    different?

    want to post to me as a birthday present :-D

  9. #8
    jcb
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    Quote Originally Posted by Iceash View Post
    different?

    want to post to me as a birthday present :-D
    sure if you cover the £10 postage

  10. #9
    Iceash's Avatar
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    Quote Originally Posted by jcb View Post
    sure if you cover the £10 postage
    lol I can get em new cheaper than that!

  11. #10
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    Not a genuine one. Mine was about £29 inc clip and I ring at the dealers a few months back iirc.
    1999 Audi A4 1.8TQS (Standard)
    2003 VW Golf GT TDi
    2002 Audi S8 4.2 SOLD
    2004 Alfa 156 2.4JTD 20V Veloce SOLD
    2000 Audi A4 2.8 Quattro tiptronic (Electric heated seats, winter pack, lowered on H&R Springs & 18" A8 sport wheels) SOLD
    1999 Audi A4 1.9TDI 110hp (with full Audi Sports kit) SOLD

  12. #11
    Iceash's Avatar
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    Quote Originally Posted by Mr K View Post
    Not a genuine one. Mine was about £29 inc clip and I ring at the dealers a few months back iirc.
    i've used cheapie ones before with success :-)

  13. #12
    Bradderz_1988's Avatar
    Dont replace it, Upgrade it !!

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    Stick to a genuine sensor !! And you will get a green instead of blue sensor dont worry it supersedes to the green one and is the correct one used on our cars !!Also id say its most probably your stat thats fooked and not the sensor both are around £20 each so do the stat first as they say do it right first time round and only use genuine parts !!
    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

  14. #13
    Iceash's Avatar
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    Well I did wonder stat, changed that 18 months ago, but the needle plummets holds shots up. Holds drops back to zero then returns to where it was then makes it to 90'c. Where is the sensor and stat located? I'll change both for piece of mind.

  15. #14
    Bradderz_1988's Avatar
    Dont replace it, Upgrade it !!

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    Sensor is on back of the head on the outlet tank, stat is behind the power steering pump follow the bottom rad hose and you'll find it !!
    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

  16. #15
    Iceash's Avatar
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    Do you have to be under car to change it?

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

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    Id say yes as you have to rest it on its housing and manoeuvre it in to position.
    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
    "Stick a V8 in it!"

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    The new ones are all green.

    If you have a digital clock, you'll have a D Shaped plug and the PN ends in an A.
    If you have analog clock, you'll have a square plug and the PN doesnt have the A.

 

 

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