1980 528i E12

wrote

There's a disable switch at the driver's position. Also, check the reset buttons/circuit breakers near the driver left knee - little round button-like thingys.

If neither of those is the problem, the lift motors are frozen - quite common, even with new 200x models; you'd think they'd be able to get it right after all this time. I had to R&R or lubricate the lifts in my '77 several times.

FloydR

Just a guess, but cars of that age sometimes had a disable button for the rear windows only - to prevent kids playing with them and running the battery flat. And the switch/relay operating this circuit can get dirty through lack of use.

Nice :-)

Look for the "firstfives" site and te E12 board on Roadfly.