This has been a helpful forum for me. I am a first time MB owner - 1986 300E. Great ride.

Last September driving along happily, my AC Blower all of sudden quit working and I smelled something burning; it seemed to be coming from under the dash on the passenger side. I quickly pulled over and saw no smoke and so I pulled onto the highway again.

The Blower has not worked since. This is what I've done:

- Put a new Blower fan in. Checked the old one and it worked with direct connection. So that was a waste of 80 dollars.

- Checked and replaced all fuses. Couldn't find any fuse matching the description of "an aluminum fuse in a coffin shaped box outside of the fuse box."

- Found a cheap but working Button Control Unit. Both of mine work now.

- Changed the Blow Contro Regulator.

- Jiggled the ignition more than I've probably needed.

All to no avail.

Today, I was searching under the dash on passenger side behind the glove box (where I originally smelled burning last september) and found a huge cluster of wires with the black fabric tape around them. The tape had melted and had melted the rubber backing of the carpet directly covering it. This cluster of wires is huge with two big red wires running right down the middle. None of the wires had lost insulation. Couldn't find a short.

What in this mess could be causing my AC Blower to not run.

Desperately seeking any help.

the fuse is near the drivers hood hinge area send a picture i will see if i can point it out, also i have heard of the wiring to the blower from the ignition switch burning and causing that smell, i also suggest you inspect the harness at the ignition switch area

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1967 250 S
1967 280SE
1968 250S
1971 280 SE
1973 220
1974 280 S
1975 450 SEL
1976 220 D
1979 300SD
1983 300 SD
1985 230 TE euro
1986 280SL
1986 500 SEL euro
1986 190E 2.3
1990 300 SE
2003 C230 K
2004 C230 K
1987 560SEL
1987 300SDL now in canada
2005 C230
1998 C43 AMG Sold to DON
1993 190E 2.6
300TD Former daily driver Totaled
current:
R320 CDI
Ram 2500 Cummins