Fault codes but no warning messages - Mercedes-Benz Forum
 
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post #1 of 1 (permalink) Old 07-31-2019, 05:02 PM Thread Starter
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Date registered: Apr 2019
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Fault codes but no warning messages

Good day! I have a 2012 w166 ML350 Bluetec - Question, what does it mean where there are fault codes upon scanning, clearing and scanning again (using Carly), but there are no warning messages/lights or driveability issues.

Most notable of the codes are related to the fuel pump:
164100 - The difference between the specified and
actual pressure at the fuel pump is too large.

062900 - The output for the fuel pump has a short
circuit to positive

But again, no lights, warnings or issues and would have never known there were any concerns if I didn't proactively scan it
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