Close
Car Questions
RepairPal is your advocate for car care advice and guidance

Door lock is jammed.

(1990 Mercedes-Benz 350SDL)
in Port Washington, NY on June 22, 2011
Driver side door lock is jammed so that the key won't turn, lock or unlock. The lock itself works when locking from the passenger door. Tried jiggling, but no effect. Anybody else have this problem? Thanks!
Displaying 1 answer & 0 comments
Popular Answer
on June 22, 2011
Try lubricating the lock with a penetrating oil like Liquid Wrench. Don't use WD-40 because it's no good in locks, it dries to a waxy substance which is good for rust prevention but it's not really a lubricant, and after a while, it'll gum up a lock. That's my personal painful experience talking...
If that's no good, you may need to replace the lock. Get a locksmith to re-key the lock so you can use the original key.
Sign in to reply
Get a repair estimate
RepairPal estimates are guaranteed at over 2,000 quality certified locations nationwide.
Or interested in getting a repair? Find a Shop

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
The radio does not shut off when the left front door is opened and the car is off. and i did notice that when i ope...
The window will work when i press it on remote. the entire lift gate will not even open manually. it seems to unlock ...
Didn't find what you were looking for?