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Old 05-18-2015, 11:44 PM
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300SD81 300SD81 is offline
1981 Mercedes-Benz 300SD
 
Join Date: Aug 2006
Location: University of Georgia
Posts: 1,082
Quote:
Originally Posted by Hit Man X View Post
In any event, I agree the resistor is in a poor location. I vacuum out in there often. I like having the ability to use 'auto' and low speed so I keep that area clean!

Just finished a rewire of that area in my 300SD due to a small fire, all the HVAC did was high speed. Pretty annoying. The repair was a big time PITA... booster has to come out to really get in there.
This isn't the blower motor resistor, but the resistor for the electric fan infront of the radiator. I definitely wouldn't want to eliminate low speed on the blower. Is there another one there on the 300? My SD is parked at my mom's house until I finish an engine rebuild, probably in like 5 years at this rate. The 560 only has 1 resistor there.

I'm tempted to slap together a circuit to get rid of these resistors and use PWM. Less wasted power, no heat, and software-adjustable fan speeds.
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Ich liebe meine Autos!

1991 Mercedes-Benz 560SEL | Megasquirt MS3-Pro | 722.6 transmission w/ AMG paddles | Feind Motorsports Sway Bar | Stinger VIP Radar | AntiLaser Priority | PLX Wideband O2 | 150A Alternator | Cat Delete
1981 Mercedes-Benz 300SD | Blown engine, rebuilding someday...
1981 Mercedes-Benz 300SD | Rear ended, retired in garage.
2009 Yamaha AR230HO | Das Boot

Excessive speeding? It ain't excessive till I redline!
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