Today when I went to unlock my car I turned the key and nothing happened on my driver's side. Can't lock it either. The trunk and passenger side central locking work fine so I can lock the whole car temp. from the pass. or trunk. What's wrong? Thanks, Scott

Remove either the door rubber or the black covers near the door handle at the side of the door (after opening) and untighten the torque (or whatever) "bolt" you see in there while using a flashlight). Don't turn the bolt out to far, you only need to untighten it a little so that you can get the lock out of the door (push it to the rear after the bolts has been released a bit and then pull it out the door).
There is a pin from the lock itself to the mechanism in the door which is either broken or came loose...

greetingz,

Scott Did you solve this problem,It happened to me recently what happen is the pin broke(its a little pin to turn the mechanism)what i did is make a replica of the pin with the help of dremel.The dealer don't sell the pin but the whole lock assembly.

Ron
93' 190e

300 E Door Lock Problem
 

in my case, i cannot without struggle to get
my master key into the driver's door lock.
doors will lock but the key is not smooth getting in.
broken pins? what is the fix? TIA