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

Power loss issues

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Old Mar 26, 2022 | 11:13 AM
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gripper999's Avatar
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Mercedes ml280 w164
Power loss issues

Hi all, help needed please …Ive got a 07 ml280 ( w164) and totally lost power over 2000revs. Engine management light has come on.
it has done this a few times time over the last few months, but no management light, and turning the car off and restarting cleared it.
local garage won’t touch it as said it’s an electrical problem and they haven’t got the knowledge .
it shows several faults referencing single wire mode to Sam , and various earth faults ,, any help please, or who may have knowledge local to newhaven ( Brighton) many thanks,
my car soft mb11 scanner shows the faults as unknown? 2095-000, 2094-000, 2601-000, 2600-000, 2526-000, 2530-000 to list a few


Last edited by gripper999; Mar 26, 2022 at 11:17 AM.
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Old Mar 27, 2022 | 10:03 AM
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Maj. Dundee's Avatar
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From: Bronx, N.Y.
2002 ML 320 & 2006 ML500
Here is a list of codes which I have highlighted in yellow, scan through the entire pages.

It seems the problem is with B2-6b1 & B2-7b1.





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Old Mar 27, 2022 | 11:18 AM
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Mercedes ml280 w164
Thanks for your reply, is it common for both to fail at the same time?? Or is there a controller that links the 2 somewhere?? Also there seems a lot of oil in the intake pipe, is it worth cleaning it out , and the 2 sensors, or just replace the 2 parts?
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Old Mar 27, 2022 | 01:26 PM
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Maj. Dundee's Avatar
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From: Bronx, N.Y.
2002 ML 320 & 2006 ML500
Originally Posted by gripper999
Thanks for your reply, is it common for both to fail at the same time?? Or is there a controller that links the 2 somewhere?? Also there seems a lot of oil in the intake pipe, is it worth cleaning it out , and the 2 sensors, or just replace the 2 parts?
I do not have one of these vehicles and I can only suggest to clean the intake pipe. These codes are so convoluted, M/B makes it so difficult to decide what to do.
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