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Old 10-04-2002, 05:18 PM
wayne2970 wayne2970 is offline
Join Date: Dec 2001
Location: Grand Prairie, Texas
Posts: 123
Question How do I check fan clutch?

I am having a problem w/ my 1992 300D
running hot.

Temp climbs while idling and afer a hard run.
Sometines to 110 degrees.

replaced cap, thermostat, and coolant, seems alittle better.

With engine @ 100-105 I can reach in and stop the fan cluch by hand w/a towel

1. whats the acceptable operating temperature range?
2. when do the aux fans come on( passenger side fan doesn't seem to come on often) ?

Wayne Jockers
1992 300D
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