Has anyone had this? Ran the car briefly this morning (-2.0c) and when trying to re-lock it with the remote there was a second of hammering noise from the drivers door lock mechanism but it didn't actually lock that door. Ran the engine some more, opened and closed other doors etc. to no effect. Drove it 2 miles and the problem gradually reduced to 'three hammers then locked' and finally 'lock as usual'. Booked into dealers but they say it's a new one to them.