Chris NottMonster Motorsport
Results 1 to 37 of 37
  1. #1
    imported_Tariq
    Guest

    temp not going over 69C

    Hi does anyone know why my car doesnt seem to go over 69C and always seems to be running cold!

    Any help would be appreciated

    One more thing i've already replaced the coolant temp sensor with no joy to the problem!

  2. # ADS
    ADS
     
  3. #2
    RichA3Turbo's Avatar
    ...Watching you!

    Status
    Offline
    Join Date
    Jan 2003
    Location
    Earlsfield, London
    Posts
    5,087

    Re: temp not going over 69C

    I've got the same problem! I changed the temp sensor, and the 'stat, neither of which have solved the problem. It gets upto 90oC when stationary, but not when moving. I'm going to change the O-ring on the stat, just in case its not sealing.

    Rich

  4. #3
    imported_Tariq
    Guest

    Re: temp not going over 69C

    mine doesnt seem to go anywhere near 90C

  5. #4
    imported_velcrobix
    Guest

    Re: temp not going over 69C

    I have the same problems as you Rich. Recently had a service but nothing showed on VAG com as being a problem. Let us know if changing the oring works.

    Cheers

  6. #5
    imported_Tariq
    Guest

    Re: temp not going over 69C

    hey dont mean to sound dumb but where is the o ring located and how do i remove it

    (i'm a learning diy mechanic!!)

  7. #6
    RichA3Turbo's Avatar
    ...Watching you!

    Status
    Offline
    Join Date
    Jan 2003
    Location
    Earlsfield, London
    Posts
    5,087

    Re: temp not going over 69C

    The O-ring that seals the thermostat - It should have solved the problem when i changed teh stat, but i didnt change the O ring and thats the only thing i can think of.

    Rich

  8. #7
    rickparmar's Avatar
    va va voom

    Status
    Offline
    Join Date
    May 2004
    Location
    Leicester
    Posts
    2,269

    Re: temp not going over 69C

    is a o ring like a rubber seal ?

  9. #8
    Khufu's Avatar
    6th Gear

    Status
    Offline
    Join Date
    Jan 2003
    Location
    West coast of Scotland
    Posts
    5,693

    Re: temp not going over 69C

    I hope that is all it is Rich, how many miles on the engine?

  10. #9
    RichA3Turbo's Avatar
    ...Watching you!

    Status
    Offline
    Join Date
    Jan 2003
    Location
    Earlsfield, London
    Posts
    5,087

    Re: temp not going over 69C

    [ QUOTE ]
    I hope that is all it is Rich, how many miles on the engine?

    [/ QUOTE ]

    75k

  11. #10
    Khufu's Avatar
    6th Gear

    Status
    Offline
    Join Date
    Jan 2003
    Location
    West coast of Scotland
    Posts
    5,693

    Re: temp not going over 69C

    just trying to think of other things. Just wondered if the head gasket or something could be causing back pressure and stopping the thermostat from shutting except on idle when the revs are down and less pressure. Its unlikely tho, just a thought [img]/ubbthreads/images/graemlins/crazy.gif[/img]

  12. #11
    RichA3Turbo's Avatar
    ...Watching you!

    Status
    Offline
    Join Date
    Jan 2003
    Location
    Earlsfield, London
    Posts
    5,087

    Re: temp not going over 69C

    I hope not!!

  13. #12
    RichA3Turbo's Avatar
    ...Watching you!

    Status
    Offline
    Join Date
    Jan 2003
    Location
    Earlsfield, London
    Posts
    5,087

    Re: temp not going over 69C

    Did a compression test the other day - all cylinders were at 152psi (10.4bar) which is pretty bloody good considering that the lower limit is 100psi(7bar). I think the head gasket is in pretty good condition...No oil in water, or water in oil so all looks fine there. Maybe i've just got a dodgy 'stat!? It wont get above 77oC when moving which is annoying!

    So, anymore ideas??

    Rich

  14. #13
    benjy's Avatar
    Reverse Gear

    Status
    Offline
    Join Date
    Jan 2006
    Location
    wales
    Posts
    4

    Re: temp not going over 69C

    have you checked your water pump?

  15. #14
    imported_Tariq
    Guest

    Re: temp not going over 69C

    hi Finally sorted the problem out!! Turns out it was a broken connector from the control box to the fan.

    This was causing the fan to constantly stay on hence low temp.

    All it took was a trip to a breakers yard and 3 for a connector to sort it out (not to mention a good few hours trying bits)

    Cheers

    Tariq

  16. #15
    RichA3Turbo's Avatar
    ...Watching you!

    Status
    Offline
    Join Date
    Jan 2003
    Location
    Earlsfield, London
    Posts
    5,087

    Re: temp not going over 69C

    I don't think my fan is staying on. If i leave the car idling, it will eventually get to 90oC, but not when im moving. Glad yours is sorted though!

    Rich

  17. #16
    Timbo's Avatar
    Slowest car ever round the Top Gear track?!?

    Status
    Offline
    Join Date
    Dec 2004
    Location
    Surrey
    Posts
    275

    Dredging up an old post...

    My car has started doing something similar in the last few days. It used to run at an indicated 90c all the time once warm, but now it's a bit erratic - anything between 70c and 90c. It never goes over 90c.

    Rich - did you ever solve this? I don't think my fan is staying on.
    1997 1.8T || AmD Stage 1 || Eibach springs || Bilstein shocks || EBC Brakes - Gone!
    2006 Nissan 350z GT

  18. #17
    RichA3Turbo's Avatar
    ...Watching you!

    Status
    Offline
    Join Date
    Jan 2003
    Location
    Earlsfield, London
    Posts
    5,087
    Nah i've still got the same problem. Don't know what i can be other than the thermostat... If im sat in traffic it gets upto 90oC, but sits at about 70oC under normal conditions... I don't get it! I'm thinking of changing the stat again.

    Rich
    IHI-VF34 + RACELOGIC + Parada SpecII = Who needs Quattro?! 0-60 5.1s @ Inters '06

    Thought of the month: People need to understand what is meant by 'Build Thread'...

  19. #18
    Timbo's Avatar
    Slowest car ever round the Top Gear track?!?

    Status
    Offline
    Join Date
    Dec 2004
    Location
    Surrey
    Posts
    275
    Unless everything is fine and it's the temp sender for the gauge, or the gauge itself.

    Hmmm. Any idea if the gauge and the ECU use the same temp sender?

    I guess this isn't worth losing huge amounts of sleep over.
    1997 1.8T || AmD Stage 1 || Eibach springs || Bilstein shocks || EBC Brakes - Gone!
    2006 Nissan 350z GT

  20. #19
    Neutral

    Status
    Offline
    Join Date
    Nov 2004
    Location
    cambridge
    Posts
    75
    Has anyone found a fix for this yet because i have the exact sane problem. Has a skoda garage check the car out and both sides of the temp sender and the water pipes were the same temp so the sender was fine. They said it could be the stat but if people have already changed this then i dont want to replace it.


    humm help?

  21. #20
    Adams3's Avatar
    2nd Gear

    Status
    Offline
    Join Date
    Jun 2006
    Location
    Hertfordshire
    Posts
    407
    My temp seems to vary as well, although if i check the coolant temp using the climate control trick it always says 90degrees so i think the gauge has a mind of its own!!


    1999 AUDI S3 | AMD STAGE 2 REMAP | MILTEK CAT BACK EXHAUST | VIPER DIVERTER VALVE | EBC TURBO GROOVE DISCS | RED STUFF CERAMIC PADS | 18" RS6 REPLICA ALLOYS | ANDYMAC 'BOSE' UPGRADE.

  22. #21
    Numptie of the highest order

    Status
    Offline
    Join Date
    Jun 2004
    Location
    Crowthorne, England
    Posts
    2,512
    Adam I take it that is code 51 not 49 you were checking on the climate... which points to your gauge being knackered as 51 is the adjusted temp (that the dial should show). I'd be amased if your car when displaying code 49 (actual temp) doesn't vary. Mine is normally between 93-96 in normal driving and will go upto around 105 on a very hot day in traffic. It will come straight back down though as the fan does it's thing.

  23. #22
    KEF A3 20V T's Avatar
    Turbo's Rule

    Status
    Offline
    Join Date
    Sep 2006
    Location
    Whitby
    Posts
    198
    my A3 did the same to just the other nite. normally sticks at 90 but driving real slow bak home sat nite with winscreen demister on and temp dropped to bout 70 deg C, i just thort it was air con blowing freezing air onto heater matrix. and i was going for max MPG. turned air con off and booted it and it went bk to 90. might be the winter drawing in! lol

  24. #23
    RichA3Turbo's Avatar
    ...Watching you!

    Status
    Offline
    Join Date
    Jan 2003
    Location
    Earlsfield, London
    Posts
    5,087
    No ts nothing to do with the temp sensor, weather conditions, air temp sensor, thermostat, or any other frickin thing i can think of...Changed them all! Its really odd. Got my oil temp gauge installed now and thats more important than water temp so i can't be arsed to pursue it at the moment! lol

    Rich
    IHI-VF34 + RACELOGIC + Parada SpecII = Who needs Quattro?! 0-60 5.1s @ Inters '06

    Thought of the month: People need to understand what is meant by 'Build Thread'...

  25. #24
    Numptie of the highest order

    Status
    Offline
    Join Date
    Jun 2004
    Location
    Crowthorne, England
    Posts
    2,512
    Oh... it's a bit off topic, just curious but where abouts did you fit the oil temp sensor, extra hole in the sump?

  26. #25
    Timbo's Avatar
    Slowest car ever round the Top Gear track?!?

    Status
    Offline
    Join Date
    Dec 2004
    Location
    Surrey
    Posts
    275
    Rich - does the oil temp stay constant as the water temp gauge fluctuates? If so that would point to a dodgy water temp gauge wouldn't it?

    Mine seems to have gone back to normal for the time being... (famous last words)
    1997 1.8T || AmD Stage 1 || Eibach springs || Bilstein shocks || EBC Brakes - Gone!
    2006 Nissan 350z GT

  27. #26
    RichA3Turbo's Avatar
    ...Watching you!

    Status
    Offline
    Join Date
    Jan 2003
    Location
    Earlsfield, London
    Posts
    5,087
    Quote Originally Posted by god_thats_quick
    Oh... it's a bit off topic, just curious but where abouts did you fit the oil temp sensor, extra hole in the sump?
    In the oil cooler (where the filter screws on to) there is a blanking plug. Unscrew this, screw in the temp sensor that comes with the gauge and job done!

    Yes - MUCH more simple than i was expecting thats for sure!!

    Rich
    IHI-VF34 + RACELOGIC + Parada SpecII = Who needs Quattro?! 0-60 5.1s @ Inters '06

    Thought of the month: People need to understand what is meant by 'Build Thread'...

  28. #27
    RichA3Turbo's Avatar
    ...Watching you!

    Status
    Offline
    Join Date
    Jan 2003
    Location
    Earlsfield, London
    Posts
    5,087
    Quote Originally Posted by Timbo
    Rich - does the oil temp stay constant as the water temp gauge fluctuates? If so that would point to a dodgy water temp gauge wouldn't it?

    Mine seems to have gone back to normal for the time being... (famous last words)
    water temperature changes much faster than oil does, and the oil system doesnt have a thermostat. I've also changed my temp sensor and the ECU temp and gauge temp match.

    Rich
    IHI-VF34 + RACELOGIC + Parada SpecII = Who needs Quattro?! 0-60 5.1s @ Inters '06

    Thought of the month: People need to understand what is meant by 'Build Thread'...

  29. #28
    Adams3's Avatar
    2nd Gear

    Status
    Offline
    Join Date
    Jun 2006
    Location
    Hertfordshire
    Posts
    407
    Quote Originally Posted by god_thats_quick
    Adam I take it that is code 51 not 49 you were checking on the climate... which points to your gauge being knackered as 51 is the adjusted temp (that the dial should show). I'd be amased if your car when displaying code 49 (actual temp) doesn't vary. Mine is normally between 93-96 in normal driving and will go upto around 105 on a very hot day in traffic. It will come straight back down though as the fan does it's thing.
    Oh yeah of course, i have lost my list of climate readout codes, will check tonight using 49. Silly me lol


    1999 AUDI S3 | AMD STAGE 2 REMAP | MILTEK CAT BACK EXHAUST | VIPER DIVERTER VALVE | EBC TURBO GROOVE DISCS | RED STUFF CERAMIC PADS | 18" RS6 REPLICA ALLOYS | ANDYMAC 'BOSE' UPGRADE.

  30. #29
    Neutral

    Status
    Offline
    Join Date
    Nov 2004
    Location
    cambridge
    Posts
    75
    All fixed - Jabba changed the thermostat and the car is running correct temp and heating up in no time now. 105 lighter but the car works now yay.

  31. #30
    hud at ye bam

    Status
    Offline
    Join Date
    Jan 2006
    Location
    Aberdeenshire
    Posts
    2,231
    Quote Originally Posted by RichA3Turbo
    No ts nothing to do with the temp sensor, weather conditions, air temp sensor, thermostat, or any other frickin thing i can think of...Changed them all! Its really odd. Got my oil temp gauge installed now and thats more important than water temp so i can't be arsed to pursue it at the moment! lol

    Rich
    It's that RS3 front-end Rich. Too efficient. It lets all that cool air into the engine when you're on the move
    [/sarcasm]

  32. #31
    Neutral

    Status
    Offline
    Join Date
    Oct 2006
    Location
    Norway
    Posts
    37
    Quote Originally Posted by RichA3Turbo
    water temperature changes much faster than oil does, and the oil system doesnt have a thermostat. I've also changed my temp sensor and the ECU temp and gauge temp match.

    Rich
    You might have been so unlucky you got a faulty stat though Rich, because to me this is a clear stat problem when considering all the facts you presented. No intention of lecturing or anything, but please promise me to always change gaskets, o-rings, and sealer washers when installing new parts ( especially at hard to reach areas ) - I've scratched my head a few times too many before, leaving crucial components like seals up for lady luck to determine it's condition.

    I learnt my lesson a long time ago, and I hope it's just the o-ring and not a faulty stat you have. Best of luck, buddy.

  33. #32
    RichA3Turbo's Avatar
    ...Watching you!

    Status
    Offline
    Join Date
    Jan 2003
    Location
    Earlsfield, London
    Posts
    5,087
    Yeah the stat is the only thing i can think of. I changed the stat and the o-ring. But yeah you are right, It is the only thing that makes and sense to me too...But chen i changed it, the problem stayed in an identical manner.

    Rich
    IHI-VF34 + RACELOGIC + Parada SpecII = Who needs Quattro?! 0-60 5.1s @ Inters '06

    Thought of the month: People need to understand what is meant by 'Build Thread'...

  34. #33
    RichA3Turbo's Avatar
    ...Watching you!

    Status
    Offline
    Join Date
    Jan 2003
    Location
    Earlsfield, London
    Posts
    5,087
    Quote Originally Posted by ChriS3
    It's that RS3 front-end Rich. Too efficient. It lets all that cool air into the engine when you're on the move
    Its a good theory! Unfortunately its occured since then!

    I'm really beyond caring though....The oil is getting to temp just fine so thats all im really worrying about.

    Rich
    IHI-VF34 + RACELOGIC + Parada SpecII = Who needs Quattro?! 0-60 5.1s @ Inters '06

    Thought of the month: People need to understand what is meant by 'Build Thread'...

  35. #34
    KEF A3 20V T's Avatar
    Turbo's Rule

    Status
    Offline
    Join Date
    Sep 2006
    Location
    Whitby
    Posts
    198
    i dont think its the stat!!! imo the stat is only there to circulate water around the engine when its cold to warm it up quicker then when the engine gets up to temp it opens to let the water flow round the rad! if this was blocked shot your engine would boil in like 10 mins and if it was blocked open it would just take longer to get up to operating temperature! i think it is just that the cooling pack is very efficient with the lovely cool weather were having!

  36. #35
    Neutral

    Status
    Offline
    Join Date
    Oct 2006
    Location
    Norway
    Posts
    37
    Quote Originally Posted by RichA3Turbo
    Yeah the stat is the only thing i can think of. I changed the stat and the o-ring. But yeah you are right, It is the only thing that makes and sense to me too...But chen i changed it, the problem stayed in an identical manner.

    Rich

    Yeah, sorry. It was a little late and things got to quickly, what I meant is that I hope the new stat isn't faulty so that you'd have to buy a new one again. Anyway as you say the oil temp stays fine so no need for panic.
    Vroom vrooooom

  37. #36
    Reverse Gear

    Status
    Offline
    Join Date
    Aug 2006
    Posts
    18
    silly question i know, but ive got the same porblem, where is the thermostat?

  38. #37
    RichA3Turbo's Avatar
    ...Watching you!

    Status
    Offline
    Join Date
    Jan 2003
    Location
    Earlsfield, London
    Posts
    5,087
    Quote Originally Posted by KEF A3 20V T
    i dont think its the stat!!! imo the stat is only there to circulate water around the engine when its cold to warm it up quicker then when the engine gets up to temp it opens to let the water flow round the rad! if this was blocked shot your engine would boil in like 10 mins and if it was blocked open it would just take longer to get up to operating temperature! i think it is just that the cooling pack is very efficient with the lovely cool weather were having!
    No, it should not happen. The temp should be at 90oC at all times. the 1.8T is very efficient in keeping the correct temp. The stat being open is the primary caude i feel. As you say, it being open all the time passes the water to the radiator for cooling... Mine get to 90oC only when stopped in traffic... It HAS to be the stat. I think i may change it again.

    Rich
    IHI-VF34 + RACELOGIC + Parada SpecII = Who needs Quattro?! 0-60 5.1s @ Inters '06

    Thought of the month: People need to understand what is meant by 'Build Thread'...

 

 

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Single Sign On provided by vBSSO

Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

Content Relevant URLs by vBSEO