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1984 SL500 brake question
I have a 1984 MB 500SL, it is the 1st 500SL. It is at my dad's in Vegas and is barely driven. Brought it in for a brake job 2 years ago and put 250 miles on it since. The front right brake is binding, while driving the car pulls to one side and the same on braking.
When jacked up I can barely turn the wheel, I take the wheel off and cannot turn the rotor. I open the bleeder screw and it turns, I bleed it, close the screw drive the car and the same problem. OK I figure bad caliper so I put a new on on. Same problem, any suggesstions? |
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I'm going to presume you haven't swapped the wheel with one of the incorrect offset that doesn't clear the caliper. (I did that once and wondered why the wheel wouldn't turn...) The most common thing that retains pressure on the caliper is a defective rubber brake hose. These rupture internally and pinch off the inside of the line. Depending on the rupture, it can HOLD pressure on the caliper, or BLOCK pressure from the caliper. I presume that opening the bleeder valve on the caliper releases the pressure? There is nothing related to the master cylinder that could do this to only one wheel...
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02 S500 92 500SL 92 400E (Sold) 87 300E (Sold) 83 300D Turbo (Sold) 75 300D (Sold) 74 240D (Sold after 20 years) |
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Its probably the rubber brake lines, they are cheap I'd replace all 4.
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1999 SL500 1969 280SE 2023 Ram 1500 2007 Tiara 3200 |
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