I am coming down to the end of the extended service contract on my 300M and I noticed some minor clunking in the steering. I brought it in to the dealer and they replaced the steering gear mounting bushing. The clunking has not changed. And in addition I get a loud annoying click occasionally that sounds like the plastic cowl trim under the wipers is hitting the bottom of the windshield. I tried tightening the screws which hold it down but most had been overtightened and the retaining plastic underneath them no longer did the job. Does the plastic trim under the wipers get removed to replace the steering gear mounting bushing? The front struts were replaced a few months ago so the screw retainers could have been stripped then but I wasn't getting the annoying click after that job was done that I get now.
By the way they also changed the oil and the oil stick was not in all the ways.