Air cond won't turn off

[lqbanotxano]

I just had some work done to my car. The mechanic disconnected the battery. Now that the battery is reconnected the air conditioner, rear defogger & oscillator won't turn off....this after I drove 36 miles. All the 4 buttons are lit up & none will turn off. It did this other times when I disconnected the battery but things would go back to normal after I drove a few miles. Any ideas?

On a 1993 318is

[DesktopDave]

Not sure if this will help, but it seems like your problem:

http://www.macadamizer.com/bmwfix.html