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white pieces in brake fluid reservior

Discussion in '360/430' started by Speed seeker Don, Jun 13, 2018.

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  1. Speed seeker Don

    Speed seeker Don Rookie

    Feb 19, 2018
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    Full Name:
    Donald Roskos
    #1 Speed seeker Don, Jun 13, 2018
    Had my mechanic start to change fluid and found what may have been small soft pieces of plastic in my 2004 360. He was afraid to bleed the calipers even after removing the debris. Anyone else ever see this? I bought a used reservoir and it had a little of the same in it but not as much as mine. Will this be a problem if even after we clean it out.??? We plan to push the claiper pistons back to push any pieces back to the reservoir.
     
  2. shad99

    shad99 Formula Junior

    Dec 12, 2013
    300
    Japatul Valley, CA
    Full Name:
    Andy
    #2 shad99, Jun 13, 2018
    Oh yes! Had the same a year ago. The plastic tank apparently started to deteriorate and the pieces eventually got into the master cylinder and destroyed the seals. Replaced the master cylinder and installed a new tank. Thoroughly flushed the lines to remove the stuff. Brakes are fine now.

    I posted about this at the time, but nobody chimed in. I checked with Ferrari of San Diego and they said they had seen increasing cases of this over the past couple of years. I think it's age related and is the same or similar phenomenon as the deteriorating plastic fuel pumps in these cars. I replaced fuel pumps two years ago and the pump and brake reservoir material sure look the same. Both made by Bosch.

    Based on my experience, I wouldn't install the used tank. New aren't very expensive and will provide a little insurance against repeat failure.

    Cheers, Andy
     
  3. Speed seeker Don

    Speed seeker Don Rookie

    Feb 19, 2018
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    Donald Roskos
    #3 Speed seeker Don, Jun 14, 2018
    Thanks so much. I thought that others must have had this problem. My master cylinder is not visibly leaking so I think it is ok. Ordered a new reservoir and am returning the used one. How was ur master cylindr acitn with its;s seaks destroyed? Thanks so much. Don
     
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  4. shad99

    shad99 Formula Junior

    Dec 12, 2013
    300
    Japatul Valley, CA
    Full Name:
    Andy
    #4 shad99, Jun 14, 2018
    Brake pedal was very stiff prior to annual flush. Actually too stiff, due to the clogging from the plastic. After flush, pedal was very soft. You could pump it up, but wouldn't stay that way due to the internal leakage. First thought air, but bleeding several times didn't improve. New master cylinder did the trick.
     
  5. Speed seeker Don

    Speed seeker Don Rookie

    Feb 19, 2018
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    Donald Roskos
    #5 Speed seeker Don, Jun 16, 2018
    thx so much for the info. I am awaiting a new res. I think and pray that the master cyl is ok. It is soft now but can be pumped up and will hold so I think the seals are ok. my mechanic thinks we should push the pistons in the caliphers back to force fluid back to the MC ans to the res to clear any pieces in the lines or caliphers. Is it better to do that or just pump the fluid through to the calipers and get rid of any debris that way? Don
     
  6. Speed seeker Don

    Speed seeker Don Rookie

    Feb 19, 2018
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    Donald Roskos
    #6 Speed seeker Don, Jun 16, 2018
    Why didn't Bosch do a better job? What is the symtom if the fuel pump has the same problem? The deterioration problem should be listed in the ppi list for others looking to buy.
     
  7. shad99

    shad99 Formula Junior

    Dec 12, 2013
    300
    Japatul Valley, CA
    Full Name:
    Andy
    #7 shad99, Jun 16, 2018
    Many posts on the fuel pump problem. Issue is fuel leaking from the pressure regulator on top of the pumps. Replacement pumps are a different material (I think polyvinyl) and different color. Would sure be on my PPI list for a 360. Not much of a chore to inspect.
     

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