This will lubricate the lock.
Transit van side door wont lock.
All motors work on all doors as can hear them even clear the contact on the side sliding door still does the same locks then unlocks its self deker gough may 2020.
Then lock it all up as normal.
I had to take out the lock to repair and decided to show whats happening when rotary knob gets stuck.
The first thing to check is to make sure that any side door roller hasn t collapsed it is usually the middle roller that goes this results in the door dropping enough so that the contact pins for the locking motor that connect the wiring from the body to the door don t align any more.
Try opening the rear door driver side and operate the inside handle.
If your drivers side door won t open try spraying some wd 40 into the area where the door connects with the lock inside the car.
Video about how you can open stuck sliding door on ford transit mk6 van.
This happened on a 10 plate transit last year more than once.
If not if its the same then there is usually a sticking sometimes faulty lock mechanism on the van.