Recently I've had an issue with all door locks not wanting to lock via the dashboard central locking button. All locks operate in both directions using the key in the driver's door, however my key fob no longer works, using any of the buttons. There is no alarm sound when trying to lock the doors via the fob, which would cancel out the possibility of a door/trunk being slightly open. I have replaced the 15amp central locking fuse to no avail. Any and all help would be great. Thanks!

 

your key fob probably needs a good cleaning and perhaps a new battery

https://www.youtube.com/watch?v=6BIkFju9cYs&ab_channel=ToTheGarage