Mercedes A160 brake wheel problem - Mercedes-Benz Forum

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post #1 of 1 (permalink) Old 02-08-2013, 07:23 AM Thread Starter
BenzWorld Junior Member
Date registered: Sep 2009
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Mercedes A160 brake wheel problem


I have Mercedes Classic A160 model 1999/2000 (LHD). The problem I have with it is that when I apply the brakes, the passenger side wheel doesn't get released for a good 3 hrs. After 3 hours, the wheel is free to rotate.

I showed it to the mechanic here who says that the problem is with the ABS unit. To demonstrate, he jacked the problem wheel up and rotated it with his hands, then he applied and released the foot brake and as expected the wheel just froze. It would not budge. He then loosened one of the four screws at the top of the ABS unit. Some oil came out and then he was able to move the wheel with his hands again.

Upon discussing the mechanic said, he wouldn't want to attempt to repair the ABS unit as it's connected with the ECU.

The problem I have with all this is why the wheel gets released after 3 or so hours by itself.

I though it would be the piston (brake cylinder) but it's not according the mechanic.

I just wanted to verify this with the experts here, if they would agree with the mechanic. And the best place to get a replacement. There's loads on ebay selling for around £50.

Another thing I would like to mention is that I bought a brand new dry cell battery for my car about a year and a half ago. For most part of this time, the car was not started let alone driven. Consequently the battery is now dead and won't even charge.

The problem is I don't know if this battery is a primary one or secondary because apparently I read somewhere that the primary dry cell battery does not recharge but the secondary one does.

Could anyone confirm the battery specs that is suitable for this car?

shajju is offline  
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