Anyone install a grease fitting to a sealed ball joint or similar? I did find this link:
http://forums.pelicanparts.com/porsche-911-technical-forum/539377-how-may-put-grease-fittings-ball-joints-tie-rod-ends.html
Yes, replacing it would be nice (and expensive on the Benz), but I'm not sure it's the rear control ball joint that is squeaking. It sure seems like it though when I'm under the car.
So my thought was to drill a hole in the bottom, use a self tapping zerk fitting, grease it up and see what results I get. If it works, I leave it until I replace it or move on to the control arm bushings if that wasn't the problem.
Thoughts?