Just recently I've got this problem. Anybody else experience it? Something is definitely not right. Been busy at work, so don't have to chance to take it to the mechanic. Thanks.

 

Water pump ?

 

A mechanic told me it's the transmission. To rebuild it, it is going to cost $2800. I did some research on this forum and I read that it might be the transmission fluid or even the TCU (transmission control unit). I have to keep my fingers cross. Anybody can recommend me a reliable mechanic that knows Mercedes in NY. Thanks.