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1986 300SDL with leaky front calipers
My car has developed a leak in at least one of the front calipers--haven't inspected the other caliper yet; one is enough to warrant repairs to both.
On my 85 300D I upgraded the front brakes to the 1st gen W126 brakes (calipers, rotors), replaced the bearings, new pads, etc. On this car I need to save a bit of money if possible. Question #1: Has anyone successfully performed a caliper rebuild on this type of caliper? I have read that if you just have leaky calipers that a new seal kit may be all you need to do. Are there any special tools/techniques required? Question #2: I have been reading here that dealing with brake bleeding issues is complicated when ABS is involved, which it will be on this car. The caliper started leaking badly while I was on my way home; by the time I got home the front brake reservoir was dry. So there's bound to be air in the system now. Are there solutions to this bleeding issue that will not be big $$s? Thanks to all who can help.
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Mike Frederick 1986 300SDL, 240K+ miles 1985 300D KaliKar, 270K+ miles |
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AARGH! I just found this thread: 81 300SD replace or rebuild caliper
But I still have the question about the ABS.
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Mike Frederick 1986 300SDL, 240K+ miles 1985 300D KaliKar, 270K+ miles |
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Mikey,
FWIW, (in my experience) caliper issues seem to sneak up on you over time, not be a catastrophic as you describe. Go in and inspect, but I'd guess maybe a brake line blew. As in calipers/brakes, if this is the case, replace both. If one's gone, the other is prolly right behind it.... Let us know what you find... |
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Bleeding with ABS is not a problem at all. One thing though. Go ahead and replace the brake lines as well. I believe they are supposed to be replaced every 2 years ? Also when installing them make sure there are no kinks. There is always a reference line ( white or dotted white line) it should be as straight as possible.
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92 500E Silver 66k 82 Porsche 911SC 84K 68 Cadillac ( Gone Now ) 03 Suburban Z71 200K 85 300SD 217k From Original Owner ( Dad ) |
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Answer
__________________
ASE Master Mechanic asemastermechanic@juno.com Prototype R&D/testing: Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician. Noise Vibration and Harshness (NVH). Dynamometer. Heat exchanger durability. HV-A/C Climate Control. Vehicle build. Fleet Durability Technical Quality Auditor. Automotive Technical Writer 1985 300SD 1983 300D 1984 190D 2003 Volvo V70 2002 Honda Civic https://www.boldegoist.com/ |
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