Audizine - An Automotive Enthusiast Community

Results 1 to 3 of 3
  1. #1
    Established Member Two Rings
    Join Date
    May 14 2014
    AZ Member #
    224263
    My Garage
    93 300zx, 01 MR-S, 07 a4, 99 a4 avant
    Location
    Auburn, WA.

    Question regarding brake pedal

    Guest-only advertisement. Register or Log In now!
    So I recently got the car back up and running and noticed that when parked and foot on the brake pedal I have good pressure but if you keep your foot on it that the pedal slowly goes to the floor. No leaks were found and fluid level is good. Did some searching and some posts said this is normal while others hinted at a possible internal mbc leak. Is this actually normal or am I needing to look into it more? I don't remember it doing it before but it very well could have.

  2. #2
    Veteran Member Four Rings Charles.waite's Avatar
    Join Date
    Jun 27 2011
    AZ Member #
    77478
    Location
    Seattle, WA

    That doesn't seem normal to me. Could definitely be a master cylinder thats leaking internally
    -CP
    2008 2.0t S-Line Ti 6MT Avant
    2017 Q7 3.0t
    SOLD -- 2012 Q5 2.0t - Stock Mommy Missile with new timing chains
    Former USP CLUB MEMBER #136
    2004 A4 1.8TQ 6MT USP - APR Stage 1+ - FSI Coils - BKR7EIX-11 - B6S4 Front + B7A4 Rear Brakes - 034 Street Trans Mount
    SOLD -- 2006 A4 2.0TQ Avant Tiptronic

  3. #3
    Established Member Two Rings
    Join Date
    May 14 2014
    AZ Member #
    224263
    My Garage
    93 300zx, 01 MR-S, 07 a4, 99 a4 avant
    Location
    Auburn, WA.

    Doesn't seem normal to me either from my experience with other cars but a lot of tdi's seem to have this as normal apperantly and then I found this thread searching and in particular post #28. http://www.audizine.com/forum/showth...to-double-pump

    Is there anyway to really test a mbc?

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  


    © 2001-2025 Audizine, Audizine.com, and Driverzines.com
    Audizine is an independently owned and operated automotive enthusiast community and news website.
    Audi and the Audi logo(s) are copyright/trademark Audi AG. Audizine is not endorsed by or affiliated with Audi AG.