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Old 05-26-2003, 03:07 PM
manny manny is offline
Registered User
Join Date: Feb 2003
Location: Ontario, Canada
Posts: 3,160

You have nothing to lose by trying a slightly hotter plug.

On some vehicles, I may ask people to test the coolant/aircharge temperature sensor, just to be sure the values are in spec.'s, as an errant reading may tell the ECU to enrichen the fuel mixture to compensate for a " cold " engine.

However, it is only speculation on my part, that this would apply to an M-B.
2007 C 230 Sport.
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