Door lock: replacement and selection

When and why car door lock needs replacement

Lifetime limit of a car door lock is not specified by manufacturers. This component is replaced in case of corrosion damage of the lock cylinder, flip latch, stopper or other elements of the lock, and also as a result of abrasion or breakage of cylinder pins. Moreover, the car part is to be replaced in case of inner mechanical damages and if lock mechanism fastening clips got loose.

Lock corrosion is caused by ingress of moisture and dirt into the device, and pins wear-out is caused by improper usage, particularly, turning the key when the door is not completely shut. Mechanical defects inside the car part can appear as a result of attempted break in.

The following signs indicate car door lock defects: taking the key out of the keyhole is impossible, it can’t be put into the lock or gets jammed when turning the cylinder. Damage also can be detected by screeching sound at turning and the fact that the door can’t be opened or closed with the key.

Replacement of the whole lock mechanism usually requires removal of trimming and dismantling of the door. In case you don’t have experience in such repairs, it is recommended to entrust the procedure to service station specialists. Moreover, to avoid damage to the door trim and car paint, demounting and installation of the lock should be done with special tools.

How to select car door lock

According to locking mechanisms there are pin tumbler and wafer tumbler locks.