RW, I'm having a similiar problem with my 320 also. Drivers side mirror worked fine but pass. side glass seemed to be stuck.
Had my mechanic take a look, now nothing. NO power to either side AND my tele. steering wheel no longer does anything. Checked the fuse and it was ok. I'm wondering if there maybe is a
relay somewhere that could be bad. If you find a solution please post!! I have to get this fixed!!