Great site!

I bought my car - a 1997 c280 - a month ago. It only has 49k kms (30k miles). I've driven it with the gear selector on position "4" for 3 weeks (mostly on highways for about 500 - 700 miles) until I read the owner's manual a few days ago. During those 3 weeks, the transmission would once in a while make a single almost inaudible "clunk" when downshifting from 2nd to 1st. Otherwise, it operates smoothly. Now, after realizing my error and driving it on "D", it doesn't make the noise any more.

Did driving on "4" cause the problem, which is now solved, or is it the beginning of the dreaded 722.6 transmission problems?



TIA