[Walt Fricke]

The '84 footwell blowers were not fused. Those blower motors were not durable. Bearings would fail, plastic moving parts would rub on other plastic parts, and eventually the motor would freeze. With no fuse, heat would almost set them on fire - acrid electrical heat/fire smell in the cockpit.

Amazingly stupid design - fuses were hardly unknown.

I know this because around 1993 or 4 I had to coach by phone my panicked wife about how to remove the battery cable on her '84 so the smoking would stop. She enlisted a neighbor. I replaced the blowers, but eventually decided they really weren't all that helpful, and disconnected them. I used my 2.7 as my ski car, and never wished I had footwell blowers.

I don't recall if by '85 Porsche had fixed this with a fuse. Don't recall if Porsche ever had Bosch make better blowers.

Obviously, they then over engineered the system, with a time delay, etc.