300E Blower out/flashing lights in the night
 

I gave my 74 year old mother the 300E. I have never had trouble with the blower control...until, alas, it went out after she had the car 4 days.
The car has been having a strange issue with the lights. When you press on the brake with the headlights off, the "bulb out" light comes on and the lights for the window switches, dash switches all flash on and off quickly. As of this weekend the Climate fan won't work on any speed.

I'm trying to diagnose the car before she spends 5 hours driving it to me (the car is in Arkansas). After searches I have narrowed it to:

1. Voltage Regulator/Alternator brushes
2. Blower Fuse Link
3. Blower Regulator

I appreciate any ideas before she drives it here

i wouldn't allow my mom to drive the car, moreso a
long distance run.

Apparantly the car is just possessed. She called last night and said as soon as she turned the headlights on, the A/C started blowing fine. I'm going to order brushes for the alternator and see if that does it.

She is very stubborn and wouldn't hear of me flying up to fix the car...said that the windows work and she won't melt. I'm relieved it's working again though.