Audi Original "S" Cars Discussion forum for the Audi Audi Ur S4, Ur S6, S2 & RS2

Loosing the brake pressure

Thread Tools
 
Search this Thread
 
Old 11-26-2008, 12:51 PM
  #1  
AudiWorld Member
Thread Starter
 
ROCCO_16V's Avatar
 
Join Date: Mar 2003
Location: Toronto
Posts: 220
Likes: 0
Received 0 Likes on 0 Posts
Default Loosing the brake pressure

Hey guys, let me start by saying that my car is loosing P/S fluid from the X plug area on the pump. I have the plug along with all the seals that go on the pump, on order at the local dealership, they'll be here in a day or 2.

The fluid level in the reservoir never got below the minimum mark, I always top it up (using the Pentosin CHF fluid).

But today, I was on a steep incline waiting to merge into the traffic, I had my foot on the brake, but the car was inching forward and I had to press the pedal harder (almost to the floor). Also in traffic, the braking is weaker and if I try to slow down by pressing the pedal steadily and over a longer distance, it looks as the brakes are loosing their bite. I shut the engine off and the firs pedal had pressure, while the next ones went alot lower. To me it seems like the bomb could be on the way out, but I wanted to run it by the gurus, because of the coincidence with the P/S fluid or pressure leak.

Any imput is highly appreciated.
Thanks,
Florin
Old 11-26-2008, 01:06 PM
  #2  
AudiWorld Super User
 
UrS4boy's Avatar
 
Join Date: Feb 2001
Posts: 18,801
Likes: 0
Received 5 Likes on 5 Posts
Default

I think "almost to the floor" = brake servo not "bomb" issue.
Old 11-26-2008, 03:11 PM
  #3  
Former Vendor
 
nate @ 034MOTORSPORT's Avatar
 
Join Date: May 2003
Location: Fremont, CA
Posts: 1,352
Likes: 0
Received 0 Likes on 0 Posts
Default

Master cylinder more likely.
Old 11-26-2008, 03:38 PM
  #4  
AudiWorld Super User
 
kinderutz's Avatar
 
Join Date: Jun 2005
Posts: 2,622
Likes: 0
Received 1 Like on 1 Post
Default

2nd
Old 11-26-2008, 05:25 PM
  #5  
AudiWorld Member
Thread Starter
 
ROCCO_16V's Avatar
 
Join Date: Mar 2003
Location: Toronto
Posts: 220
Likes: 0
Received 0 Likes on 0 Posts
Default

Thanks guys! Now for the cheapest source, can any be cheaper than Autohaus AZ?
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
r1racer
A6 / S6 (C6 Platform) Discussion
34
11-03-2023 04:54 PM
SteveK-O (stock!)
A4 (B5 Platform) Discussion
22
04-25-2005 11:57 AM
emmett03
Audi Original "S" Cars
2
08-16-2004 08:59 AM
Krisko
Florida Discussion
6
03-30-2004 04:33 PM
BSCA4
A4 (B5 Platform) Discussion
8
08-09-2002 05:41 AM



Quick Reply: Loosing the brake pressure



All times are GMT -8. The time now is 10:46 PM.