I have a 2011 135i vert. When I turn on the climate control fan (ac or heat, in manual mode, not auto mode), I find that it usually cuts out for a split second every minute or 2. It only cuts out for maybe half a second, and then starts right back up again, but it's very frequent. Doesn't really affect performance, but it's annoying, cause I can hear it stopping, even if only briefly. Is that normal?
