I've got a replacement front drivers side indicator unit to fit,a s the lense has come off the existing one. How easy is it to do and what do I need to do?

Easy peasy. Lift bonnet, remove 1 No. hexagonal fixing holding indicator bracket to headlamp. Pull indicator unit towards you, and remove wiring clip from old unit. There is a slider on the side of the headlamp that when re-fitting, you must ensure that the plastic lug of the new indicator sits inside. Hard to describe, but should be apparent when working on the lens.

cheers thanks