Renard,

Sounds like the piston seals are starting to fail. Replace the M/C.  New
fluid and/or bleeding will not fix it. Before you put in the replacement
M/C make you bench bleed it, it'll make completing the job much faster
after you install it.

Jorge
87 GTI 16V
92 Passat GL


                                                                                
                
                    "Fli GLi"                                                   
                
                    <[email protected]        To:     "A2" 
<[email protected]>             
                    .com>                     cc:                               
                
                    Sent by:                  Subject:     Failing MC, I 
think...               
                    owner-a2_16v@conne                                          
                
                    cticom.com                                                  
                
                                                                                
                
                                                                                
                
                    09/13/2001 05:42                                            
                
                    PM                                                          
                
                                                                                
                
                                                                                
                





  So, what are the symptoms of a failing master cylinder?  I have no
experience with MC.  Here is what is happening:

- sporadically the pedal will go 3/4 to the floor
- when this happens, if I pump it 2-3 times I get pressure
- seems to only happen at slow speeds, i.e. in a parking lot, when moving
in
slow traffic, etc.
- when it is acting up I can put the pedal 3/4 to the floor when the car is
stopped by pressing on the pedal lightly; if I press hard or pump it I
      get
pressure

  It seems to only do this when the car is warmed up.  It will do it for a
while, then stop.  Some ideas I had :

- MC failing
- time to bleed the system
- time for new fluid

  Anyone have any ideas/advice??  I need to get this taken care of soon b/f
I slam into someone.

           Thanks,

           Renard

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