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Old 11-19-2002, 11:35 PM
Tom McMenamin's Avatar
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Join Date: Aug 2001
Location: Orange Park Florida
Posts: 363
560 Sl Eating Front Calipers!

Hello to all!

I am trying to understand Why my SL is eating Calipers.

I replaced them at 86000 miles and now have 106,000 and I am replacing them once again. Last time rebuilt, this time rebuilt!

I am not sure if this is normal but it seems to me that something is not right if I am going thru them that quickly.

What is happening is that the Front Calipers are locking up and this was the same problem I had at 86K.

Now, it is possible that this is standard procedure for the car? I would appreciate comment!

If this is not normal then what should I look for that might be causing this other than the nut behind the wheel?

All comments graciously accepted and Thanks in Advance!
1988 560SL
Black Pearl/Palamino

Last edited by Tom McMenamin; 11-19-2002 at 11:45 PM.
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Old 11-20-2002, 12:06 AM
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Join Date: Sep 2001
Location: Wrightsville Beach NC
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This is a shot in the dark but a suggestion none the less. How about the brake booster? Hope you find the gremlin soon !

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Old 11-20-2002, 12:54 AM
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do you drive on salted roads?
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Old 11-20-2002, 12:58 AM
Tom McMenamin's Avatar
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Join Date: Aug 2001
Location: Orange Park Florida
Posts: 363
N o Salted roads Will!

1988 560SL
Black Pearl/Palamino
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Old 11-20-2002, 01:49 AM
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Location: San Francisco, CA
Posts: 3,096

What do you mean by "eating Calipers" ....? I have certainly heard of cars "eating" rotors .... What are some of the other symptoms?

Locking up brakes on your car could mean something other than calipers. ABS system, have your checked it out? It makes me thing that possibly the ABS sensors are the problem ....

Have your replaced your flexible brake lines?

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Old 11-20-2002, 02:06 AM
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How are they being rebuilt? Are the bores being sleeved? If so, is the rebuilder using stainless steel sleeves?

I wonder if the bores have a rough texture from either bad rebuilding or (water in the brake fluid induced) corrosion, causing the calipers (pistons) to stick. Any brake fluid leakage from the calipers?
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