A4 (B5 Platform) Discussion Discussion forum for the B5 Audi A4 produced from 1995-2001 B5 FAQ

Brake calipers not releasing fully... what did I do wrong?

Thread Tools
 
Search this Thread
 
Old 04-21-2003, 09:36 AM
  #11  
AudiWorld Super User
Thread Starter
 
Gordan T.'s Avatar
 
Join Date: Mar 2000
Posts: 4,137
Likes: 0
Received 0 Likes on 0 Posts
Default

Thanks, will try.
Old 04-21-2003, 09:37 AM
  #12  
AudiWorld Super User
Thread Starter
 
Gordan T.'s Avatar
 
Join Date: Mar 2000
Posts: 4,137
Likes: 0
Received 0 Likes on 0 Posts
Default I don't think I'd have crushed the lines on both sides...

Besides, braking seems relatively normal - it's the releasing that's screwy.
Old 04-21-2003, 09:38 AM
  #13  
Banned
 
ModifiedA4's Avatar
 
Join Date: Mar 2000
Posts: 34,209
Likes: 0
Received 2 Likes on 2 Posts
Default (more)...

the reason this happens is that your fluid level goes down as your pads wear. If any fluid was ever added while the pads were worn, then when the calipers are compressed for new pads that excess fluid has to go somewhere. If you didnt remove the excess fluid during the pad change, then the excess fluid will create backpressure in the system.
Old 04-21-2003, 09:53 AM
  #14  
AudiWorld Super User
Thread Starter
 
Gordan T.'s Avatar
 
Join Date: Mar 2000
Posts: 4,137
Likes: 0
Received 0 Likes on 0 Posts
Default Granted... but I did not add any fluid. OTOH, dealer might have.

I've been treating this as a more-or-less closed system, which I guess it is not. It certainly can't hurt to check the brake fluid level, especially since it's time to replace it anyway.
Old 04-21-2003, 09:55 AM
  #15  
Banned
 
ModifiedA4's Avatar
 
Join Date: Mar 2000
Posts: 34,209
Likes: 0
Received 2 Likes on 2 Posts
Default I'm 90% sure this is your problem...

the dealer always "tops off your fluids" if you do regularly scheduled service through them.
Old 04-21-2003, 10:07 AM
  #16  
AudiWorld Super User
Thread Starter
 
Gordan T.'s Avatar
 
Join Date: Mar 2000
Posts: 4,137
Likes: 0
Received 0 Likes on 0 Posts
Default

I'll proceed on that assumption. Thanks!
Old 04-21-2003, 10:08 AM
  #17  
Head Cat Herder

 
Kris Hansen's Avatar
 
Join Date: Oct 1998
Posts: 66,550,451
Received 85 Likes on 48 Posts
Default ...which is why you really should open the bleeders when retracting the pistons..

instead of trying to force the fluid upstream, it pushes it out into your cup. This will get the old dirty fluid out of the caliper, and allow newer fluid in.
Old 04-21-2003, 10:43 AM
  #18  
AudiWorld Super User
 
Audiboy's Avatar
 
Join Date: Mar 2000
Posts: 13,200
Likes: 0
Received 2 Likes on 2 Posts
Default

That sounds good. Shouldn't be the handbrake then
Old 04-21-2003, 11:05 AM
  #19  
RKA
AudiWorld Uber User
 
RKA's Avatar
 
Join Date: Mar 2000
Posts: 66,965
Likes: 0
Received 0 Likes on 0 Posts
Default How much resistance?

If you can still turn the wheel, I'm not certain I would be worried. Drive it around and see what happens. If you smell something burning, or the rotors/wheels get VERY hot after a few minutes of driving, you have a problem. If everything seems find, the resistance might be coming from the rear differential or just minor contact between the pad and rotor.
Old 04-21-2003, 11:27 AM
  #20  
Head Cat Herder

 
Kris Hansen's Avatar
 
Join Date: Oct 1998
Posts: 66,550,451
Received 85 Likes on 48 Posts
Default If they stop instantly, then you may have a problem. If they just sort of stop..

it may just be the differential. Compared to the fornts, are they the same or worse?


Quick Reply: Brake calipers not releasing fully... what did I do wrong?



All times are GMT -8. The time now is 03:29 AM.