W110 W111 W112 Sedan, BENZ AID - COMMON QUESTIONS AND ANSWERS

Hot Wire H/AC Blower motor? 86 300SDL Turbo

Well I HAD my blower working.
Don't know why but it up and quit after a couple of days.
I ran 12v to the motor and it works.
I suspect that the Resistor is bad(just a hunch any one know how to check it?)
Would I do damage to anything if I were to bypass the resistor and run wires from the plug (leading into the resistor) to the fan motor?
Or should I put in a toggle switch and run a lead from a hot source?
I realize that it would be on "full" mode when on.
The $400.00 on a resister would be better spent on more important things right now.

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1983 300 TD - AC turns to a Hot Blast

Hi All,

I purchased by 1983 300 TD in November 2009 so this is my first summer with Frau Blucher as we have named her. The AC worked well as it started getting warmer. We have had a nice hot summer in Atlanta and I'm getting some interesting behavior from the AC.

On the hottest days when you start out, the air blows cold and the car is comfortable. As long as you are driving it is fine. When you stop to go into a store or something, very often when you start back you get an intense blast of heat out of the vents for at least 3-5 minutes. Sometimes the cool kicks back in and other times it doesn't. It is not just lukewarm air but feels like it is actually heated.

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'82 300SD overheats in 114 deg. stop and go traffic

Kent,

I have a 1982 300SD with a new radiator, hoses, thermostat, fluid with correct ratio, fan clutch, blets all from Mercedes Source. I recently to a trip to Las Vegas where it was 114 most of the time. When driving on the highway at 65 mph I had very normal engine temp and my A/C was ice cold. As soon as I got into stop and go traffic, all bets where off. The engine temp climbed to just under the red and my A/C was warm. The aux. fan was on and the fan clutch seemed to be working just fine. The condenser fins don't look to be blocked either.

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