MERCEDES remote key|||programming, owners manual or service manual ought to explain procedure.|||Hold the remote button down while holding the window up button at the same time for 10 seconds.If the code dosen`t reset you will have to take it to the shop and let them reset it.When you take all power from onboard computer away as when you changed battery,this will cause the trouble you are having.|||change the batteries in key
close car
lock the car with remote hold down for 60 sec
un lock the car until windows open keep button key depressed
lock car keep button depressed until all closed
batteries in remote can changed using metal part of key
readmanual dont force wipe red dot on door handle
