AH FabricationsJMB Retrofits
Results 1 to 21 of 21

Thread: Low coolant

  1. #1
    robby's Avatar
    2nd Gear

    Status
    Offline
    Join Date
    Dec 2003
    Location
    West yorkshire
    Posts
    455

    Low coolant

    I've just bought a TDi 140 (late 06 plate with 43k) and noticed the coolant is down to the MIN mark.
    The oil cap and dipstick have no mayo on so i don't think it's the cracked head problem?

    Do A3s suffer from leaking radiators like the mk5 Golfs or is there anything else to check?

    Cheers

  2. # ADS
    ADS
    Join Date
    Always
    Location
    Global
    Posts
    Many
     
  3. #2
    Lex
    Lex's Avatar
    2nd Gear

    Status
    Offline
    Join Date
    Mar 2008
    Posts
    364
    mine leaked from cracked pipes, EGR, Rad and clyinderhead. pressure tested showed nothing and there was no way for the garage to indicate if it was the head and it turned out to be.

    good luck, hope you dont have the problems i had
    now : A3 2.0 TDI, ST-3 remap, coilovers, matte black rs6 alloys

    800 spent on my car in a week, is that excessive? B***ocks is it

  4. #3
    robby's Avatar
    2nd Gear

    Status
    Offline
    Join Date
    Dec 2003
    Location
    West yorkshire
    Posts
    455
    Thanks Lex, so do you remember which pipes?

    Last VAG i had was a mk5 Golf 2.0fsi petrol which leaked coolant, it turned out to be the water pump and egr but the local VW dealer said they were replacing radiators at 1-2 a week!! seemed they corroded at the bottom corners

  5. #4
    N8
    N8's Avatar
    Kowalski Details

    Status
    Offline
    Join Date
    Jul 2007
    Location
    Salford, Manchester
    Posts
    17,137

    My Social Networking

    Add N8 on Facebook Visit N8's Instagram Channel
    Mike had coolant leaking, it was the head that had gone!!

  6. #5
    robby's Avatar
    2nd Gear

    Status
    Offline
    Join Date
    Dec 2003
    Location
    West yorkshire
    Posts
    455
    N8 - did yours have mayo on the oil filler cap or dipstick? what mileage had it done?

    mine has 43k and will come with 12 months RAC warranty which i'm told can be used at the main dealers

  7. #6
    N8
    N8's Avatar
    Kowalski Details

    Status
    Offline
    Join Date
    Jul 2007
    Location
    Salford, Manchester
    Posts
    17,137

    My Social Networking

    Add N8 on Facebook Visit N8's Instagram Channel
    Wasn't mine, Mikey's!

  8. #7
    robby's Avatar
    2nd Gear

    Status
    Offline
    Join Date
    Dec 2003
    Location
    West yorkshire
    Posts
    455
    sorry N8 - thought it said mine in your reply instead of Mike

  9. #8
    N8
    N8's Avatar
    Kowalski Details

    Status
    Offline
    Join Date
    Jul 2007
    Location
    Salford, Manchester
    Posts
    17,137

    My Social Networking

    Add N8 on Facebook Visit N8's Instagram Channel
    No Mike, his user is 'Mikey' send him a pm lad.

  10. #9
    Reverse Gear

    Status
    Offline
    Join Date
    Jan 2010
    Posts
    4
    I have very recent experience of this. My A3 2.0tdi (mar-07) started going through coolant 1 year ago and progressively got worse (to the point of requiring a full top up every 250 miles). I had emulsification on the dip stick (grey and gluey) but not immediately and probably only started showing a couple of months ago (10 months after problem started).

    It has been into the dealer several times for "investigation". First they replaced the EGR valve. Second time they replaced the coolant reservoir tank. Third time, they rang and said that after a full overnight pressure test that they couldn't find the problem.
    After a week Audi finally decieded to remove the cylinder head, consequently found all the missing coolant mixed with the oil and then found a crack on the inside of the cylinder head and have now replaced it. The fact that they have now broken my reverse gear selection is another story!!!

    Anyway - hope that helps!

  11. #10
    4th Gear

    Status
    Offline
    Join Date
    Nov 2006
    Location
    Cheshire
    Posts
    881
    I too was losing lots of coolant. A pressure test at Audi didnt indicate a cracked head so they fitted a new EGR valve. 2 weeks later and I was still getting coolant loss. 2nd time in at Audi they confirmed the head was cracked and replaced it FOC under warrenty.
    Audi A3 2.0TDI S-Line
    OEM+

    Coming soon: VW Passat 2.0TDI 170 DSG

  12. #11
    robby's Avatar
    2nd Gear

    Status
    Offline
    Join Date
    Dec 2003
    Location
    West yorkshire
    Posts
    455
    What sort of mileages are the heads cracking at?

    i'll be getting a years RAC warranty so will be covered but as it's a know problem shouldn't Audi be replacing the heads at their dealers?

  13. #12
    Mick a3's Avatar
    Mellow Yellow

    Status
    Offline
    Join Date
    Apr 2009
    Location
    Greenock,Scotland
    Posts
    269
    I need to top mine up every 2 weeks or so, I dont do alot of mile's ad im worried that it might be the head. I also done a pressure test and it showed up nothing.

  14. #13
    Reverse Gear

    Status
    Offline
    Join Date
    Jan 2010
    Posts
    4
    Quote Originally Posted by robby View Post
    What sort of mileages are the heads cracking at?
    Mine currently has 52k miles. It started at 34k miles. Still in 3 year warranty so Audi covered it.

  15. #14
    robby's Avatar
    2nd Gear

    Status
    Offline
    Join Date
    Dec 2003
    Location
    West yorkshire
    Posts
    455
    Isn't the same engine used in the mk5 Golf and Seat Leon (maybe Skoda)? wonder if those cars have the same problem, haven't heard of any

  16. #15
    4th Gear

    Status
    Offline
    Join Date
    Nov 2006
    Location
    Cheshire
    Posts
    881
    Mine started losing coolant around 36k. Got it fixed and its now on 49k and I check the coolant once a month and its not dropped at all.
    Audi A3 2.0TDI S-Line
    OEM+

    Coming soon: VW Passat 2.0TDI 170 DSG

  17. #16
    4th Gear

    Status
    Offline
    Join Date
    Nov 2006
    Location
    Cheshire
    Posts
    881
    oh, just to add, I never noticed a change in the cars performance or anything else while coolant was being lost, it still felt and drove the same, only thing to tell was losing coolant!!!!
    Audi A3 2.0TDI S-Line
    OEM+

    Coming soon: VW Passat 2.0TDI 170 DSG

  18. #17
    4th Gear

    Status
    Offline
    Join Date
    Nov 2006
    Location
    Cheshire
    Posts
    881
    Quote Originally Posted by Mick a3 View Post
    I need to top mine up every 2 weeks or so, I dont do alot of mile's ad im worried that it might be the head. I also done a pressure test and it showed up nothing.

    I strongly suspect you do have a cracked head. You should NOT need to top your coolant up this often!!!
    Audi A3 2.0TDI S-Line
    OEM+

    Coming soon: VW Passat 2.0TDI 170 DSG

  19. #18
    Reverse Gear

    Status
    Offline
    Join Date
    Jan 2010
    Posts
    4
    I would agree with Mikey. The pressure tests showed nothing up on mine at all and I still had a cracked head. It was only when audi took the head off the engine they found the coolant in the engine and the problem!! They also had to replace the intercooler because it was full of gunk.

    Having just got mine back after being fixed, it's having a good test at the end of the week when I'm due a 500 mile round trip.... finger crossed!!

  20. #19
    Mick a3's Avatar
    Mellow Yellow

    Status
    Offline
    Join Date
    Apr 2009
    Location
    Greenock,Scotland
    Posts
    269
    Ah ****! another trip to the garage to get this checked out and hope its not too costly if it is cracked. I done a 300 mile round trip the other day and all seemed fine and the coolant still hasnt flashed up since, any other signs or symptoms of a cracked head apart from maybe white smoke from the exhaust?

    I'm having no luck with this audi at all!

  21. #20
    devonmikeyboy's Avatar
    As far from JBS as possible !

    Status
    Offline
    Join Date
    Feb 2007
    Posts
    1,257
    You might want to read the following link.http://www.audi-sport.net/vb/showthread.php?76277-[2-0-TDI]-How-to-know-if-your-cylinder-head-will-Crack-(if-it-hasnt-yet)
    If you need to replace the head i have a spare head laying in my garage as well as a full engine and running gear etc.
    06 Audi 2.0 PD140 Sport TDI Quattro S-LINE.
    Old engine 330 bhp @ flywheel 263 bhp @ wheel 490 lb torque. Audidriver write up HERE
    Now stripped and playing with an uprated Cryo treated engine fitted with bigger turbo,water/methanol,uprated injectors etc etc.Wanting 400 bhp and 500 lb torque.

    Other car 500+ bhp MK4 Golf R32 turbo.

  22. #21
    Reverse Gear

    Status
    Offline
    Join Date
    Jan 2010
    Location
    northants
    Posts
    3
    i had the same problem but mine was that the coolant sensor was leaking water asoon as i put new oring n clip on problem was solved

 

 

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