I just finished replacing all of bushings in the front and rear suspension of my 420 SEL as well as the motor mounts, ball joints, and steering components. Thanks to everyone who has posted information on these topics - I found them very useful. The Performance Products spring compressor worked very well - no problems. I no longer have the ominous squeaking noise emanating from the underside of the vehicle whenever I am on the road.

On to my question: the interior has its share of noises as well. I have found several links concerning this topic but wondered if more information were available. A product called leatherique was recommended, as was silicon for the leather portion of the interior. Does anyone have other ideas on what to use and where to apply the products in order to alleviate the general squeaking associated with the leather/door panels, etc.?

Thanks in advance.