The trans is designed to hold the shift only when cold!! There is a solenoid at the LEFT front of the transmission mounted to 2 small metal pipes, IF the wire becomes disconnected THEN............
AS long as it isn't a California version car, or the check engine light will come ON.
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)