Mine does
,
in the rocker cover
The horn on Rover 200 Series is twin horn and is tucked away by the side of the passanger side headlight.
something around 110Nm
the horn is the button in the middle of the steering wheel
there is none it,s a hyrdaulic system
10W-40 (per the haynes manual)
f5 (20amp) under bonnet.
Under the bonnet by the battery it also works the horn
fuse box under bonnet
You add it to your water tank this is used to stop oil leaks in engines, follow instructions to the letter or it will not work.