Dealer visit , under warranty , 
The problem is, that we have changed the indicators to the INPRO smoked ones! The dealer will surely turn round to us and say "we think you did it!"
I was the one that actually discovered this fault with his mirrors..... I pushed the wing mirror forward so that I could get to the screw holding the puddle light (this is the correct way to get to the screw, so I wasn't forcing it), and when we folded the mirror back in it just wouldn't set back into its original position. Thankfully, after a little play with the electric folding mirrors, it clicked back into place. Seeing as this has never happened on my wing mirrors (ive replaced the puddle light bulbs numerous times), i would suspect that his mirror is faulty.
However....explaining all that to an incompetent dealer may prove to be difficult!!!!