Can anyone help me with advice on how to change the l/h passenger side headlight on a 94 magna v6 exec please?

Remove grille, remove indicator light, undo 2 10 mm bolts each side, pull forward, undo light connections.

'94 would be a 2nd gen, you'll find a dedicate section of the forum here (http://www.aussiemagna.com/forums/forumdisplay.php?f=11).

By "change", do you mean the assembly, or just the bulb? If assembly, as per MadMax's instructions, a bit more detail can be found here (http://www.aussiemagna.com/forums/showthread.php?t=87106&p=1379157&highlight=#post1379157). If just bulb, can't quite recall but I'm thinking the washer bottle may be behind it, so easiest to just unbolt the washer bottle and lift it out to give much clearer access.