Hi all, I have a slightly different door central door locking problem and wondered if anyone else has come across this. I have a 2011 MY HSE auto. When locking and unlocking the doors I can hear the drivers door lock, locking and unlocking opening in quick succession for about 5-10 seconds before stopping. I sounds a bit like teeth chattering. I know it is an aftermarket one off of eBay and not an original. The other door locks and tailgate are all a bit intermittent on unlocking as well, as you have to press the remote button several times. I thought the intermittent functioning may be due to ageing remotes but as to the “chattering” i have no idea. Has anyone else heard of this, I have a good a look at old posts but can only find "not working" issues.