Chris NottEM Tuning
Results 1 to 15 of 15
  1. #1
    Reverse Gear

    Status
    Offline
    Join Date
    Dec 2013
    Posts
    23

    update on my overheating audi, now bleeding the coolant system help needed

    I took the thermostat out my audi today, will try and upload a picture later.
    Am hoping this is the problem looking at the state of it.

    I have replaced the thermostat and have tried to bleed the system but haven't managed to get all the air out. I have no heating in the car. The bleed screw on the top of the pipe can't be undone, what other ways can I try to bleed it? Thanks

  2. # ADS
    ADS
    Join Date
    Always
    Posts
    Many
     
  3. #2
    Mike.M's Avatar
    5th Gear

    Status
    Offline
    Join Date
    Oct 2003
    Location
    Dorset
    Posts
    1,414
    The system self bleeds.

    Remove the cap on the overhead tank, put the climate controls on the hottest and fastest setting.....then keep revs about 2k to get temp up to 90 and keep it there while monitoring the water level and topping up.

    This whole process should not take anymore than 30 minutes max
    Mike

  4. #3
    2nd Gear

    Status
    Offline
    Join Date
    Oct 2012
    Posts
    385
    Correct me if i am wrong but i am sure one of the 2 hoses that goes through the bulkhead should have a little hole in it maybe under the hose clip, if you slide the hose off a little bit and let coolant /air out the the hole then this is how to bleed the heater

  5. #4
    SL11CKK's Avatar
    3rd Gear

    Status
    Offline
    Join Date
    Apr 2011
    Location
    Barking & London
    Posts
    614
    Yep your correct on the TDIs - I don't know about the Petrols.

    The two pipes going into the cabin are indeed the bleeding pipes well the one on the left. You need to undo the clip holding the hose and take it down a certain amount as there is little small hole on the pipe itself which will let all the air out.

    Anyways I went by this guide How to do a VW Passat TDI coolant flush and change

  6. #5
    Reverse Gear

    Status
    Offline
    Join Date
    Dec 2013
    Posts
    23
    Have had a go this morning, as soon as car heats up to 90 and is running for about five minutes, the water bubbles out over, there is nothing coming out the bleed hole by the heater, the top of the radiator is hot, the bottom is cold, the small return pipe when taken off has steam coming out, the water is flowing out of the expansion tank out of the hole where the return pipe would be, this suggests the water is backing up the out pipe at the bottom of the expansion tank. Still got no heating in the car.

  7. #6
    6th Gear

    Status
    Offline
    Join Date
    Jul 2007
    Location
    London
    Posts
    3,076
    Blown head gasket or cracked head...
    FOR SALE:
    -Golf mk 5/audi a3 1.6 FSI fuel pump, brand new genuine part boxed + seals
    -audi a3 (1998 to 2003) genuine clutch slave cylinder to fit 1.6 engines BRAND NEW
    -Rear bush press tool to fit new rear axle bushes on Golf Mk3/4, Audi a3/S3, Seat Leon/Toledo, Skoda Octavia mk 1/2 used once

  8. #7
    Reverse Gear

    Status
    Offline
    Join Date
    Dec 2013
    Posts
    23
    How does this stop the system bleeding? When I turn the radiator drain plug at the bottom of the radiator nothing is coming out. I have a head gasket test I can do on the car but I don't think it can be done when the water isn't circulating.

  9. #8
    s3joe's Avatar
    1st Gear

    Status
    Offline
    Join Date
    Mar 2012
    Location
    Liverpool
    Posts
    296

    My Social Networking

    Visit s3joe's Instagram Channel
    It sounds like your putting the water in too fast or not squeezing the hoses to try and get the air out first. Try taking the top hose off and filling the rad though the top hose first to make sure it's not blocked

  10. #9
    Reverse Gear

    Status
    Offline
    Join Date
    Dec 2013
    Posts
    23
    I haven't put any water through it as it's not going around so can't pour any water through if that makes sense, tried pouring the water into the top of radiator yesterday but this doesn't seem to have made any difference, there is nothing coming out the bottom of the radiator so am assuming the radiator has a block.

  11. #10
    s3joe's Avatar
    1st Gear

    Status
    Offline
    Join Date
    Mar 2012
    Location
    Liverpool
    Posts
    296

    My Social Networking

    Visit s3joe's Instagram Channel
    Sounds like it to me i would take it off and try it that way if it is blocked get it reconditioned

  12. #11
    Catcherofcarp50's Avatar
    Neutral

    Status
    Offline
    Join Date
    Nov 2013
    Posts
    31
    Hi there had similar problem on a mg and I pushed my hose pipe in it to see if there was any blockages and I took one hose off the heater matrix and put the hose in that hope you get it sorted

  13. #12
    Reverse Gear

    Status
    Offline
    Join Date
    Dec 2013
    Posts
    23
    FOT59AE1.jpg
    Here is the thermostat once taken out, if picture has attached properly. I think I have now bled the system and it appears to be ok. Going to take it for a drive in a bit and check everything is ok.

  14. #13
    No Gear

    Status
    Offline
    Join Date
    Dec 2012
    Location
    Shropshire
    Posts
    217
    What's that lodged in the thermostat?

  15. #14
    s3joe's Avatar
    1st Gear

    Status
    Offline
    Join Date
    Mar 2012
    Location
    Liverpool
    Posts
    296

    My Social Networking

    Visit s3joe's Instagram Channel
    That does not look rite it's as if the spring has snapped if so the water will not go around the engine properly

  16. #15
    4th Gear

    Status
    Offline
    Join Date
    Jul 2007
    Posts
    765
    The stat has stuck open which is what is intended.The wax inside has failed allowing the spring to extend

 

 

Similar Threads

  1. so I got an Audi now for the fun
    By cat88 in forum A3/S3/Sportback (8P Chassis)
    Replies: 20
    Last Post: 28th October 2012, 19:10
  2. trying to bleed the water system on my 2.4 v6 petrol
    By scanny1 in forum A4/A4 cabriolet/S4 forum(B6 chassis)
    Replies: 5
    Last Post: 26th March 2012, 21:56
  3. Replies: 15
    Last Post: 25th February 2011, 20:18
  4. I'm struggling to bleed the coolant system - 1.8T BEX
    By Danb in forum A4/A4 cabriolet/S4 forum(B6 chassis)
    Replies: 3
    Last Post: 22nd June 2010, 10:35
  5. Audi 80 2.0 8v sport help needed
    By wayner007 in forum Classic Audi Forum
    Replies: 13
    Last Post: 5th October 2006, 10:25

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