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Old 06-10-2002, 05:47 PM
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blackmercedes blackmercedes is offline
Just a guy
Join Date: Dec 2000
Location: St. Albert, Alberta, Canada
Posts: 3,492
On my ACC panel, if I press the "rest" button for five seconds while driving, it cals up the diagnositics panel, giving the readout from many of the car's sensors.

I can check coolant temp, interior temp reading, bumper-mounted outside tep sensor, heater core temp, AC pressure, refrigerant temp, rpm, road speed, and charging voltage to name a few.

I can't remember how to call it up on your pre 1996 ACC unit, but it can be done. Check David C Klass' posts on this subject...

as well as this link:

CLK 430 Problem
John Shellenberg
1998 C230 "Black Betty" 240K

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