How to remove 07 - 11 MERCEDES CL550 S550 Abs Pump Electric Module Control Unit




can anyone tell me what tools are needed and how to remove just the module part of the abs pump. It looks like torx screws but nearly impossible to remove them as the angle and space to work in is real limited.
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You replaced the brushes? Is this a DIY? I wondering if should I just send the entire unit in. Unless you think I can fix the brushes myself
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check youtube repairing BMW GS 1200 ABS, you have to drill a hole to get it to come to bits.... On VAG cars they made a repair kit available... not seen one but they are all the samething - the module on the GS looks the same as your S class




But they all got caught with trousers down, so had to find another way to kill the planet and steal $2500 - so they invented the sticky brushes in the pump motor - this is more random in time to fail, as if you seldom activate ABS or ESP it should reach 10 years, but if a bad driver, then it should get dirty around the 5 to 7 year mark, just like they want it... As the carbon dust builds up just enough to make the brushes stick - one could drill a hole at the bottom and wash out with brake cleaner. This is likely the failure mode you have, as it comes and goes as a big enough bump gets the brushes to behave for a few minutes. - Give it a whack with a block of wood it will be good for 6 months
Don't forget the 10 to 11 year deliberately aged copper wire in the ABS wheel sensors that always goes on all W221 - you should notice the extra beeps and "random" park brake behaviour as another clue to this ABS sensor failure




