Thread: CEL light - clarification for W124, 1995 E320
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Old 10-05-2011, 05:04 PM
Kestas Kestas is offline
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Join Date: Jun 2002
Location: Motor City, MI
Posts: 2,855
Hold button 6-10 secs after reading code. You may be holding too long.

I'm not sure if erasing can time out, i.e., that it needs to be done immediately (within 3 secs) after reading, but that's what I do.
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95 E320 Cabriolet, 169K
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