How Do I Reset Keyless entry on '96 MB SL320

May have to take this to a dealership.

you can always lock/unlock car!!! on drivers side, take out little black plastic disc, and it will reveal manual key hole !! good luck skm

Problem, my SL sometimes will not start, have to crank the key back and forth, I know it is an alarm fuction, but can never figure it out, never know when it's going to start acting like an ex wife.

Point your remote key to the door sensor and press either lock or open button twice then insert the key to the keyhole and turn counterclockwise. That should reset your remote.