ISSUE: Doors intermittently will not unlock when using the remote control
DIAGNOSIS & SOLUTION:
A customer of ours has a 2010 Ford Fiesta and they are complaining the doors intermittently fail to unlock when using the remote control. The door locks have not failed whilst the car has been in our workshop so we are struggling to diagnose the fault. Can you help?
We have had reports of this fault during the cold weather season. The likely cause is a frozen door lock mechanism due to water ingress. Remove the retaining screw from the door lock mechanism (fig. 1.1.). Dry out the door lock mechanism. Apply manufacturer’s specification aerosol grease, available from Ford parts department, to the door lock mechanism via the door lock mechanism retaining screw hole for 2 seconds. Refit the retaining screw to the door lock mechanism (fig. 1.1.). Repeat this procedure for the remaining door(s).