Hi - a while back my wife's '95 525i touring started to make blower fan noises. I was hoping it might only be debris but no suck luck. Finally while she was driving smoke came out of all vents.
Nothing works now. I checked and the blower fuse (30amp) is blown and keeps blowing. So I assume the blower motor is burnt and shorting out.

Is there a diagram to show how to exchange it? Is it a big job?

Thanks for any input.