Date registered: Jan 2007
Vehicle: 1982 240D, 1986 560SL, 1987 560SEC, 1990 300SE, 2002 E320, 2002 SA 500SL, 2005 S500, and others
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Upper Control Arm replacement steps?
My new to me 2005 S500 4Matic has a front right suspension rattle that I have diagnosed as a bad upper ball joint. The boot is torn, and I can induce play with a pry bar, so it needs to be replaced.
The car has only 56,000 on it, and the remainder of the front suspension seems fine, so I just want to do this one part.
I have not had a chance to purchase a shop manual yet and with 3 other MB’s in the garage, normally I can make do with my knowledge base and other manuals, but this suspension is entirely new to me. I have searched the forum, but most of the posts relate to the lower arm and ball joint.
The work looks very strait forward and accessible but some pointers would be helpful. I believe the inner bolts are removed from the engine side and the upper bolt simply removed and the ball joint separated. Then be careful to make sure that the ride height sensor is put back correctly
Do I need to release the air on this side before starting? Any other points to remember?
The car will be on a hoist for this work.
If there is any interest I can post some pictures on this procedure.
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