Well that is the best 2 cents I've gotten all day! Thanks to all, and I must say it is impressive to have responses from such qualified experts! I will print the letter from the forum and advise of results. My mechanic is also tickled that such forums are so imformative. God bless & in spite of it all, still luv my Benz (hope I feel the same way after I speak to my dealership!!;-))