location of fuse for E39 A/C blower

Most likely the final stage resistor. Did the speed sometimes vary by itself before it finally died?

This fuse is located in fuse panel 6 located behind the glove box. I had the same problem and as Dave pointed out it is more likely the final stage resistor, although in my case fuse 76 was also blown. When I purchased a new one from the dealer they had a redesigned module and the sales person commented that this is a common problem. I paid around $75.00 for the new one.

Many Thanks guys. It was the resister pack and now it is back to normal.

Ollie