Notices
 

  

User Tag List

Thread: Varying brake pedal

Results 1 to 5 of 5
  1. Varying brake pedal 
    #1
    Join Date
    Feb 2011
    Location
    Sutton Coldfield England
    Posts
    81
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    1 Post(s)
    Sometimes when driving and braking my brake pedal goes hard with slightly less travel and it's very assuring

    Other times the pedal is 'normal' - slightly softer but effective

    cant understand what might cause this or whether it's how it's meant to be

    any suggestions please


    bibh
     
    0 0 0
     

  2. Re: Varying brake pedal 
    #2
    Join Date
    Nov 2008
    Location
    Cramlington,Northumberland
    Posts
    1,818
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    6 Post(s)
    You don't mention your vehicle type, but more than likely a Servo issue. Check vacuum pipe to it and also check for water lying in Plenum chamber due to blocked drain.
    Alan.

    A6 Avant (C7) 3.0 TFSI Quattro S-Tronic
    APR ST1
     
    0 0 0
     

  3. Re: Varying brake pedal 
    #3
    Join Date
    Feb 2011
    Location
    Sutton Coldfield England
    Posts
    81
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    1 Post(s)
    Thanks Alan02
    As you say it may be servo but not sure how to confirm this

    my car A6 C5 Sport 2004 model V6 Multitronic

    Thanks Bobh
     
    0 0 0
     

  4. Re: Varying brake pedal 
    #4
    Join Date
    Nov 2008
    Location
    Cramlington,Northumberland
    Posts
    1,818
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    6 Post(s)
    Engine off, pump brake pedal repeatedly until pedal feels solid when pressed. Keep foot on pedal and start engine. Pedal should sink a few inches. You should hear a hiss when pressing pedal. If you have a vacuum pump or hose issue to the servo you will be losing essential vacuum from the servo to operate. Blocked drain grommets in the area of the servo cause water build up which ruins the servo and electrics, so check for pooling water also.
    Alan.

    A6 Avant (C7) 3.0 TFSI Quattro S-Tronic
    APR ST1
     
    0 0 0
     

  5. Re: Varying brake pedal 
    #5
    Join Date
    Feb 2011
    Location
    Sutton Coldfield England
    Posts
    81
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    1 Post(s)
    Thanks Alan but I'm a bit confused between what should happen when I depress the pedal and what shouldn't happen
    can you give me the two scenarios separately please


    Bobh
     
    0 0 0
     

Similar Threads

  1. Replies: 4
    Last Post: 30-05-2016, 12:21 AM
  2. Please Help Brake pedal spongy, hissing when depressing pedal
    By The Norwegian in forum Audi A4 - B6 Forum - 2002 - 2005
    Replies: 4
    Last Post: 23-02-2016, 11:09 PM
  3. The usual Hard brake pedal, seized binding NSF brake - Culprits please?
    By mebedforduk in forum Audi A4 - B5 Forum - 1995 - 2002
    Replies: 13
    Last Post: 26-08-2012, 09:34 AM
  4. Replies: 6
    Last Post: 27-09-2011, 07:49 PM
  5. Tickover varying
    By vincentbob in forum Passat - B5 Forum - 1997 -2005
    Replies: 1
    Last Post: 28-01-2008, 06:35 PM
Bookmarks
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
  •  




  



Disclaimer: VW Audi Forum is an "independant enthusiast website", administered in line with guidelines supplied by VAG in the UK, and is in no way related to any of the Worldwide Volkswagen,Audi,Seat,Skoda,Bentley,Bugatti,Porsche or Lamborghini group of Companies. For official up to date information on any of there vehicles, please visit the official websites. Any comments made throughout this website, are the views of the respective poster, and in no way represent the views of the VW Audi Forum Administration, or the worldwide Volkswagen & Audi Group of companies.


VW Audi Forum do not vet and are not responsible for any information which is posted in this forum. All content is viewed and used by you at your own risk and we do not warrant the accuracy or reliability of any of the information.


Copyright: Certain "words", "phrases" and "Images" used on this website by the Administration are "Copyright" of Volkswagen GB, Volkswagen AG (Germany), Audi GB, Audi AG (Germany), Volkswagen Motorsport GB, Volkswagen Motorsport AG (Germany), Audi Motorsport AG (Germany), Volkswagen Racing GB, Bentley, Bugatti, Porsche and Lamborghini. No image can be replicated by anyone WITHOUT the relevant Companies written permission.


All trademarks and copyrights remain property of their respective owners.

No part of the VW Audi Forum website or forum may be reproduced without written permission from the site administration


PLEASE NOTE - PERSONAL ABUSE, ABUSE AGAINST THIS OR ANY OTHER WEBSITE OR ANY COMPANY WILL NOT BE TOLERATED. OFFENDERS WILL BE MODERATED OR EVEN BANNED.


This website and forum are best viewed at a minimum resolution of 1024 by 768.



  



- VW AUDI Forum - The #1 Volkswagen (VW) Group Forum - Volkswagen (VW) - Audi - Seat - Skoda - Bentley - Bugatti - Lamborghini - Porsche - VW Audi Forum -


- www.vwaudiforum.co.uk - www.vwaudiforum.co.uk -