Operation CHARM: Car repair manuals for everyone.

Door Lock Cylinder: Service and Repair


WM 570919 Removing and installing lock cylinder

Technical values






Removing lock cylinder





1. Open door.
2. Unclip cap.
2.1. Unclip lower cap -1- with a plastic wedge ( -arrow A- ) and remove downwards -arrow B-.









3. Remove lock cylinder.
3.1. Loosen and unscrew fastening screws -2, 3- at the side until the lock cylinder -4- can be pulled out -arrow C-.
3.2. Remove the lock cylinder -4- -arrow D-.





4. Unclip lock cylinder cover.
4.1. Unclip cover -5- of lock cylinder -4- at the locking tabs -Arrows- and remove it -arrow E-.






Installing lock cylinder





1. Clip in lock cylinder cover.
1.1. Press cover -5- of lock cylinder -4- on -arrow A- , until locking tabs -arrows- engage.





2. Install lock cylinder.
2.1. Insert the car key into the lock cylinder and push the lock cylinder in -4- -arrow B- , turning the car key slightly to the right. Loosen fastening screws -2 and 3- slightly, if necessary, until the lock cylinder can be pushed in completely.
2.2. Screw in fastening screws -2, 3- at the sides -arrows C- and tighten them to the specified tightening torque => Tightening torque: 3.5 ftlb.+/-0.5 ftlb. => Tightening torque: 0.5 ftlb..





3. Clip cap into place.
3.1. Insert cap -1- at the top -arrow D- and clip it into position -arrow E-.