1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Argh! Urgent help.

Discussion in 'A4/S4 forum(B5 Chassis)' started by Paddymph, Oct 15, 2012.

  1. Paddymph
    Offline

    Paddymph Member

    Joined:
    Apr 18, 2012
    Messages:
    70
    Likes Received:
    0
    [Oct 15, 2012]
    Posted a while back that my brakes seem to be sticking. To the extent that every now and then the front left will smoke it gets that hot.

    Garage checked and said they could find anything wrong.

    This morn the brake pedal hit the floor with no resistance at all. Hardly braking in fact. Yet the front left is still gettin hot as if stuck on?

    WHat would cause the pedal to feel like this?
    #1
  2. Ads

    Ads

    [Sep 16, 2014]

  3. Broken Byzan
    Offline

    Broken Byzan Photographic Moderator Staff Member Moderator VCDS Map User

    Joined:
    Apr 26, 2004
    Messages:
    12,596
    Likes Received:
    273
    [Oct 15, 2012]
    Faulty ABS pump, the valves can sieze preventing the fluid from returning to the cylinder, thus holing the brake "on"
    #2
  4. Paddymph
    Offline

    Paddymph Member

    Joined:
    Apr 18, 2012
    Messages:
    70
    Likes Received:
    0
    [Oct 15, 2012]
    And making the pedal feel weak as piss?
    #3
  5. AR-rkon
    Online

    AR-rkon Midlands regional Moderator Regional Rep

    Joined:
    Oct 8, 2010
    Messages:
    1,706
    Likes Received:
    78
    [Oct 15, 2012]
    Yep, as there will be very little fluid in the master cylinder...
    #4
  6. Paddymph
    Offline

    Paddymph Member

    Joined:
    Apr 18, 2012
    Messages:
    70
    Likes Received:
    0
    [Oct 15, 2012]
    Ok guys thanks. Wish the garage was this helpful. Just hoping ill be able to get it home after work
    #5
  7. Paddymph
    Offline

    Paddymph Member

    Joined:
    Apr 18, 2012
    Messages:
    70
    Likes Received:
    0
    [Oct 15, 2012]
    To clarify. Is the abs pump and abs module the same thing?

    DIY job or a garage?
    Last edited: Oct 15, 2012
    #6
  8. jcb
    Offline

    jcb Active Member VCDS Map User

    Joined:
    Sep 19, 2005
    Messages:
    4,118
    Likes Received:
    13
    [Oct 15, 2012]
    Sounds like the Module
    BBS Reman with recon it for you.

    you could always pull the module and see if that solved the problem
    you will effectively have no ABS but you can still drive.

    Just tape and seal the open housing when you take out the module.

    front passenger wheel off job I am afraid
    remove wheel arch lining and washer bottle and then torx screws on front of module
    #7
  9. Paddymph
    Offline

    Paddymph Member

    Joined:
    Apr 18, 2012
    Messages:
    70
    Likes Received:
    0
    [Oct 15, 2012]
    Urgh. Sounds complicated. Would removing a fuse do the same thing?

    I'd rather have some braking than none at all whilst I figure out what to do... :(
    #8
  10. Broken Byzan
    Offline

    Broken Byzan Photographic Moderator Staff Member Moderator VCDS Map User

    Joined:
    Apr 26, 2004
    Messages:
    12,596
    Likes Received:
    273
    [Oct 15, 2012]
    Id bet its the pump not the module that's faulty, so removing the fuse has no impact as the hydraulics can still stick preventing fluid returning and / or cycling fluid within the valve block rather than allowing it to reach the brakes
    #9
  11. Paddymph
    Offline

    Paddymph Member

    Joined:
    Apr 18, 2012
    Messages:
    70
    Likes Received:
    0
    [Oct 15, 2012]
    That does sound more like my problem.

    Seems to affect the front left more from what I can see..and feel. Red hot. Starting to fall out with this car now :(
    #10

Share This Page