Hi,
I have a 2001, S60 T5. I've been having central locking issues lately. When locking the car with the remote, all the doors lock, except for the left rear door. After unlocking all the doors, and locking it again, it usually locks all the doors. Sometimes it locks all the doors successfully.

Are there any contacts that I can try and clean, and where are they located. I looked but didnt see.



Thanks!

 

Usually that means the door lock assembly is going bad.(L/R door)