Last year, the high speed radiator fan on my 306 ran noisily for a few months then broke down completely : the impeller fell off.
It appears that the shaft bent slightly so that the fan blades were hitting the cowling, and eventually the unbalanced fan cracked the shaft (half of the shaft was still in the impeller).
After only 6 months, I've started getting a lot of noise from the fan - I think it's happened again. I shall have a good moan at the garage but I'm amazed that it would go so quickly. Is this a common problem, or could they have screwed up the repair in some way ?
-adrian