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

check engine

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Old 06-27-2011, 12:55 PM
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2005 E320 CDI (sold); 2007 R320 CDI (sold); 2008 ML320 CDI; 2014 ML350 Bluetec
check engine

I am getting 'check engine' problem. I am getting this message while I am driving and it stays up to 2-3 road trips (or a few days).

I am wondering if the problem could be related to contaminated diesel or some water in tank (I am trying run almost until the tank is empty but ..).

I have changed ALL filters (air, fuel,...) 15,000 miles ago and I don't think they are bad ...

Do you have any idea about next step ... ?
Old 06-27-2011, 01:43 PM
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98 Black C43 , 08' ML320 CDI ,11 E63
I'll take a wild stab in the dark......glow plug relay.
Old 06-28-2011, 08:59 AM
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2005 E320 CDI (sold); 2007 R320 CDI (sold); 2008 ML320 CDI; 2014 ML350 Bluetec
Originally Posted by C43AMG
I'll take a wild stab in the dark......glow plug relay.
I did scan today and I got those codes

2038-002
2668-002

(check component G3/2 - O2 sensor upstream to KAT/TWC).

it could be related to my Kleeman KD Box due to it's related to oxygen sensor

If I have problem with water in tank - can I add something to 'burn' water. On my gas engine, I used some 'gunk' but not sure if it's working for diesel.

I assume glow plug relay is giving different code, isn't it ?

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