first brake application is significantly softer than the second and third
03-14-2006, 06:51 PM
#1
Junior Member
Thread Starter
Join Date: Jan 2006
Posts: 1,134
Likes: 0
Received 0 Likes
on
0 Posts
first brake application is significantly softer than the second and third
like...the brake goes about twice the distance on the first pump than it does on the subsequent ones.
failing bomb? what happens if it completely goes out...does that leave me sans brakes?
failing bomb? what happens if it completely goes out...does that leave me sans brakes?
03-14-2006, 07:27 PM
#3
AudiWorld Super User
Join Date: Aug 2003
Posts: 2,334
Likes: 0
Received 0 Likes
on
0 Posts
Meaning - the first pump has assist - the latter ones do not.
This is indeed a symptom of a 'waterlogged' bomb. (Almost out of nitrogen, but full of fluid.)
You still have all of the brakes you had before, even if the bomb goes completely flat.
You just have to do all of the work yourself - and depress the pedal just as far as if the bomb was still assisting you.
Eat your Wheaties!
You still have all of the brakes you had before, even if the bomb goes completely flat.
You just have to do all of the work yourself - and depress the pedal just as far as if the bomb was still assisting you.
Eat your Wheaties!
03-14-2006, 07:32 PM
#4
AudiWorld Super User
Join Date: Jul 2003
Posts: 2,319
Likes: 0
Received 0 Likes
on
0 Posts
wow, i always thought bomb just affected after the car is off (keeping pressure)
bombs suck, my 5000 had a bad bomb it didnt have one good pump after the car was off, and my brake pedal always felt the same (kinda hard 
)
)
03-14-2006, 07:40 PM
#5
AudiWorld Super User
Join Date: Aug 2003
Posts: 2,334
Likes: 0
Received 0 Likes
on
0 Posts
You are partially correct -
Yes - it is to maintain applications after the car is off - but without the bomb - the pump would not produce pressurized fluid fast enough to provide assist for serious braking - meaning - get strong!
My subject line respone to Crapple was for his test case.
My subject line respone to Crapple was for his test case.
Trending Topics
03-14-2006, 08:25 PM
#8
AudiWorld Super User
Join Date: Aug 2003
Posts: 2,334
Likes: 0
Received 0 Likes
on
0 Posts
Only if something is wrong with your master cylinder
As your pads wear - the additional fluid that occupies the space vacated by the piston in the caliper comes from the master cyl resivour - unless the pedal does not come all of the way out after an application.
Thread
Thread Starter
Forum
Replies
Last Post
q2quest
S4 (B6 & B7 Platforms) Discussion
13
12-03-2004 02:00 PM