I'd really appreciate your help.

I have a 2008 Megane 1.5Dci with Aircon. About a week or so I started to notice a 'clicking' sound which I assumed was a leaf stuck in a vent. Anyway, the heater blower / fan just died.

a) Whats it likely to cost if I take it to Renault to fix, (i'm out of warranty by 3 months!)
b) How easy is it to replace the blower
c) Are there any work instructions / diagrams I can get hold of or is there such a thing as an up to date Haynes manual (not seen one for a 2008 Megane yet)
Thanks in anticpation....
Scott