It is a classic sign of one of the motors failing in the actuator and this is by far the most common problem. Never say never though there could be a lesser known issue. It would be fair to say that a replacement drivers door actuator would almost always solve the problem.
When they first start to fail they do actually operate with the central locking / unlocking button on the centre console but not the remote.
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Dave...
Lost a few stones  and a Gall Bladder and part of a bile duct and all of my dignity in the suppository incident
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