Dodgy earth I think.

Can anyone help me to where this earth should be connected I have been exsperiancing some silly faults my low water light will come on
and if my full beam is on then the horn won't work but if I put it to main beam on alls good. And occasionally the oil light and buzzer will sound briefly.
I feel this earth should be plugged into the fuze box and if so where.
Many thanks in advance for all you help. 

You might look at the A2 resource pages, but they are some what confusing.  There are only the "L" single plugs on the back of the fuse box where I think the earthing should go as there is one one run of earth.
You might want to take it back to the Star Connections on the inside firewall, which might be safer, you can also jumper it to a good ground and see if that in fact works better.

Having Good Earthing points from the Battery to Frame and Frame to engine go a very long way to ensuring that your vehicle is up-to-snuff electrically.

Where is a Riddle.

What to Divorces, Great Coffee, and Electrics all have in common?


Good Grounds.  

that wire goes to the earth claw (star) above the fusebox, its what supplies the earth path to it

also if you have 2 earth claws there should be a small loop wire joining them together

for the fusebox earth this one is the brown wire hanging out of the white engine loom D plug, pin 22. its tapped into the same pin as the wiper motor earth. It should plug into the front of that white spade block pictured