Sounds like hoses, especially if after sitting 1/2 hour the brakes
are free again. I put new hoses on one 240D, and after a year, the
LF was swollen shut. ATE hoses... I have not attacked the problem
yet. Am just letting the car sit for now.
As Mr DIllon said, open the bleeder and push back the brake pads from
the rotor. If it binds up and is relieved by opening the bleeder,
you have bad hoses.
A few weeks ago I mentioned I broke down on the way to my shorehouse. Since
I replaced the power booster on my 78 240D before I went ahead & ordered
A PB from Rockauto.con,got it in a day & a half .I contortingly installed
it [ Dan- easy for me being 5'-6] Then I realized the check valve on the
vacuum pump was kaput. Couldn't remove it due to the galling between the
steel valve & the aluminum body. So I put in a new one. I even had to remove
a broken bolt from the previous owner. Bled the brakes with my homemade
pressure bleeder [Boy that's fun !!]
Then when I would drive it a few miles,after a few lights
my front right caliper would lock up & I had to abandon the car Half an
hour later I come back I would drive back to my house before it would get
tight again. I installed both front NEW calipers[Bendix] just 2 years ago. I
replaced all four brake hoses about 4 years ago.
My question is does this sound like brake hoses collapsing on the
inside ?? I don't remember my source for these hoses [Chinese?] My car
brakes would be fine after it "cools" down after a half hour or more. I bled
the brakes again still same thing.
I did notice that my rear brake hoses did have some black specs
when I bled them so I'm wondering about the hoses.
HELP ! I'm now 92 miles away from my car since I had to come home
due to renters. I'm 4 weeks away from My week at the house when I could
work on it again in my driveway. Any suggestions ?? If I need hoses
from MB. Caliper from Rockauto. THanx guys.
PS runs like a new car except for the eventual lockup
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