Golf GT TDi 5 door. As per title really, the rear nearside door doesn't lock when the others are locked with the central locking. It might be coincidental but the battery went flat and since then the central locking fails to flash the indicator lights when lock is operated from the remote and the 1 door stays unlocked. The indicators flash correctly when unlocking and the door opens ok from inside and outside. I have had the internal door panel off but all the central locking gubbins is behind the door skin so not accessible. Can anybody help with a cure? Thanks.
Rob