after my scheduled lube service at the benz service center, i noticed that my 190e2.6 had more gear whine than usual. Not intrusive but noticeable nonetheless.
This is a 5spd manual, and i can correlate the gear whine pitch to vehicle speed - whether in gear or in neutral.
the scheduled service i had at Benz was just a regular lube service (i.e. no additional checks/services as per service handbook). Aside from engine lube, does this also cover lube service for the transmission and rear axle?
My transmission and rear axles do not have oil leaks and i was just wondering what could have caused the extra gear whine, which is too much of a coincidence after getting it back from the shop.