Manually open the boot/trunk

[Kelvin uk]

I disconnected the battery because the screen wipers will not turn off then because its raining and with thinking I closed the boot/trunk is there a way to open it manually 

[Greydog]

Morning Kelvin

There is normally a manual/emergency release pull check your handbook for it's location

Or you could try connecting a batery to the charging points under the bonnet see if it allows the central locking to work

Dave

[Kelvin uk]

Thanks Dave but I've sorted it now, do you know which fuse powers the windscreen wipers?

Kelvin 

[Greydog]

Morning Kelvin

I think in the boot the fuse panel there will have a fuse location diagram folded up in the holder 

Most BMW's have fuses and relays behind the glove box and in the boot and a panel in the engine bay. All I can tell you is the X5 wiper fuse is 37 in the glove box panel there is also a relay (probably your issue) all you need is the 3ft long multi jointed fingers of a Bavarian Gnome that can grip like mole grips and it's simple 🤣

Check for the layout diagram in the boot

Dave