Sunroof not closing

[27650]

G'day......
I have 1994 e36 320i sedan with a sunroof that works fine except......!!!!!!!
The car has keyless entry which when the remote pad is pushed to lock the car all the windows close and doors lock ...no problems
and the sunroof will close from an opening position then the rear will lift slightly as if heading for the "vent " position and stop which leaves
the sunroof slightly open....!
Does the sunroof motor require adjusting...? HOW...?
WHATIF.....
I disconnect the sunroof from the remote function...? HOW...? (thus closing the sunroof prior to locking the car)

thanks in advance....BOB