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Old 07-15-2002, 11:58 PM
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pmizell pmizell is offline
Benz Zealot
Join Date: Jun 2001
Location: Houston, Texas
Posts: 838
The proper idle speed while in P or N is 650RPM's plus or minus 50, same with AC compressor engaged.

In D it is 550RPM +/- 50.


'91 300E, 215K miles

Last edited by pmizell; 07-16-2002 at 12:57 AM.
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