I noticed when I was driving the auto lock was triggering every time I moved from standstill, also the lock light was not illuminating on the locking button in the car.

 

I then noticed that the rear passenger door was making a strange noise when locking the car, and on testing the door was not locked.

 

I have been able to use the manual override to lock the door but need to know what the issue is.

 

I can hear the actuator trying to lock the door but is obviously doesn't succeed.

 

Is the issue likely to be the actuator or the locking mechanism or even just a cable issue?

 

Cheers

You will most likely require a new door latch as it contains the full locking mechanism.

 

plug the car in and check for faults