Is it the front or rear that does not blow?
Had the same problem with my old L322, it was a quick fix, by replacing the reostate, took the garage 40mins, this was for the front blower.
It could also be the fuse, not sure which one, but there is a guide in the glover box.
Hi,did you manage to fix the problem? I have the same problem in my car today, did you find out what the problem was? pls email me on ammars27@aol.com to tell me what it was