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W639 sliding door not locking/unlocking

11193 Views 4 Replies 3 Participants Last post by  phil24_7
Hi All, my 2008 Vito side rear door has decided it is no longer unlocking consistently with the remote lock/unlock. The physical lock/unlock buttons work ok from inside. So, sometimes it will not unlock remotely, more importantly, sometimes it will not lock remotely, so I need to manually lock it inside first!
I am not sure if it is simply a dirty contact somewhere or if the relay is not functioning to lock/unlock.

Anyone investigated this before?

cheers

Richard
1 - 1 of 5 Posts
Try replacing the battery in the fob. Failing that try the spare fob.
1 - 1 of 5 Posts
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