Horn doesn’t work out a new horn on and changed the fuse to what fuse I think it is 

does anyone know exactly what fuse I’m changing 

thanks Ian 

F44 in relay box for Mk7 Transit

Standard relay box

Is this front or back fuse box under glove box with 

4 minutes ago, Iwelsh8 said:

Is this front or back fuse box under glove box with 

Front one, behind the glovebox.  It should look exactly the same as the picture.

Hi Tom thanks for info 

changed it to no avail any other ideas 

1 minute ago, Iwelsh8 said:

Hi Tom thanks for info 

changed it to no avail any other ideas 

Could be the relay.  R14 in that same box.  Just swap it with another one the same size to test.

If it's not horn, fuse or relay then you'll have to look at the steering wheel contacts and clock spring to check if the horn signal is getting through from the wheel.

Hi Tom switched r15 to r14 and it worked so what is r15 for as my horn has always worked but had auto electrician looking at van a few weeks ago 

Just now, Iwelsh8 said:

Hi Tom switched r15 to r14 and it worked so what is r15 for as my horn has always worked but had auto electrician looking at van a few weeks ago 

Also any ideas on side door central locking not working but all other doors do 

I can lock it manually from inside 

1 hour ago, Iwelsh8 said:

Hi Tom switched r15 to r14 and it worked so what is r15 for as my horn has always worked but had auto electrician looking at van a few weeks ago 

R15 is for DRL's (daytime running lights)

The usual fault for a single door not locking is the door module.  Though as you've had other electrical issues, it would be worth checking plugs and wiring for the module before replacing in this case.