300e door locks
 

when i insert my master key into the drivers side door lock it wont go in. i see there is a little metal door in the locking mechanis that keeps debris out when theres no key installed and it seems to be broken.i dont think some prankster put glue in my locks how do i go about getting this fixed. pls help. i cant lock my doors

you need to see an auto locksmith.
use passenger side door or trunk to lock doors.

In this case, you can replace the lock on that side, or do what I did on my car.

Use a small pick tool and pick out the little door and toss it.

This will buy you time...