1992 300E 3.0L Has Check Engine Light on 1992 Mercedes-Benz 300E

1992 300E 3.0L Has Check Engine Light on and when i hold the button down on the Diagnostic Box for three seconds and release it Flashes 18 times. What is that code please or what is the problem? Plus i know that its time for a new IAC Valve, ive clean ed it twice and it runs a little smoother everytime after i clean it. HELP! Thanks

by in Santa Clara, CA on April 03, 2011
1 answer
ANSWER by on May 03, 2011
18 flashes should be Current to idle control valve is illogical. If it were my car, I'd use a known good ICV valve and see if that takes care of the code before spending the roughly 400 bucks on a new valve.
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