Driver side mirror doesn't fold
 

Just finally started driving my new (to me) 2012 35i today.

One issue I found is that the drivers side mirror doesn't fold (pass side does). Any ideas on troubleshooting?

Thanks!

While I was bleeding the coolant, I started playing with the mirror - folded it manually a few times, and the motorized fold started working. I assume it hasn't been used for a while.