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Old 01-04-2007, 04:29 PM
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justinperkins justinperkins is offline
I ♥ German Cars
 
Join Date: Sep 2006
Location: Austin
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Quote:
Originally Posted by sixto View Post
The dial is a trimming plug for idle control. Turning the knob should raise or lower idle in 25 or 50 rpm increments.

The big resistor is probably for the low speed setting of the auxiliary fan.

Sixto
93 300SD
I was wondering the other day what that dial was. Good to know. I can't believe how easy MB made it to adjust the idle on this engine.
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1987 300TD, 1987 300TD
2008 R32, 2000 Passat Wagon
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