Reverse gear is applied by a clutch pack in the front of trans, only gear that its used for. Sounds like the clutches are worn or application seal rings are leaking durning application. SOmewhat major repair at 10 hrs & $175 in parts. Most of the time a GOOD shop would suggest all of the FIBER clutch plates be replaced on cars with mileage. IN ALL auto transmissions these discs are designed to slip & that causes wear! IN other words normal! At what mileage this wear happens & is normal is the real ?????
MERCEDES BENZ MASTER GUILD TECHNICIAN
ASE MASTER TECHNICIAN
27 YEARS DEALER M.B. Shopforeman
190E 2.3 ITS RACECAR
1986 190E 16V