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M-Class (W164) Produced 2006-2011: ML280CDI, ML320CDI, ML420CDI, ML350, ML500, ML550

Engine codes - what do they mean?

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Old 01-09-2022 | 06:53 PM
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RicedMl320CDI's Avatar
RicedMl320CDI
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From: Calgary Canada
Mercedes Ml320 CDI w164 2008
Engine codes - what do they mean?
They appeared after I replaced the electric wastegate actuator on my 2008 ML320CDI

but after replacing it I no longer have an issue with losing boost pressure-

do these codes signify any other issues that I need to adress?







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Old 01-10-2022 | 02:45 AM
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Maj. Dundee's Avatar
Maj. Dundee
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From: Bronx, N.Y.
2002 ML 320 & 2006 ML500
What is the part# of Y77/1 that you replaced? Did you purchase it from M/B?
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