This post is purely about bulb changing in the headlamp unit.If like me you don't have a manual it can be a bit daunting as it's pretty near inpossible to remove any of the bulbs with the headlamp unit in situ.
A quick post on the SBMCC ( thanks Kev) and it all became clear.I took a few photo's while I was at it.Doesn't take long once you know what to do.
First (after opening the bonnet)! There are two screws to remove at the inside edge of the unit.This will loosen the plastic trim panel above the unit.Theres a plastic push fit type clip in the centre area of the trim.This needs prising up carefully ,then the whole thing hinges out from the wing area.
Then two screws under the unit and carefully price out the clips.One in the middle and another nearer the wing.This panel was harder to remove than the top one!
Next there's three bolts to remove (10mm socket).One bolt ontop of the unit and two below
Now the whole light unit can be pulled forward enough to gain access to the bulb holder.Twist the large black round panel( centre of pic 2) anti clockwise till it clicks then it pulls out revealing the said bulbs.Squeeze open the two spring catches and remove the electric plug.Job done.