Fault code U010B85
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Joined: Apr 2025
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Mercedes E220d w213
Fault code U010B85
Hi any one got a idea what this means fault code is U010B85 it says as below
Communication with the exhaust gas recirculation controller (cylinder bank 2) has a malfunction
There is a signal above the permissable limit value
how would I fix it
Thanks Mark
Communication with the exhaust gas recirculation controller (cylinder bank 2) has a malfunction
There is a signal above the permissable limit value
how would I fix it
Thanks Mark
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Joined: Apr 2019
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From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
Can your scanner interact with that EGR Module at all ?
Ultimately this may be related to back-pressure from a dirty DPF...
Last edited by CaliBenzDriver; Apr 6, 2025 at 11:59 PM.
Out Of Control!!
Joined: Apr 2019
Posts: 12,007
Likes: 6,830
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
one new EGR under warranty: no difference.
There are two EGR's...
Modern Bosch 4 cyl. ECU can track bank1 and bank2 for best emission management. Engine doesn't need to be split in 60° V.... 180° is a line.
Again this has something to do with back pressure from clogged DPF.
Check the harness for factory painted GND post, interact with module them tackle pressure issue.
There are two EGR's...
Modern Bosch 4 cyl. ECU can track bank1 and bank2 for best emission management. Engine doesn't need to be split in 60° V.... 180° is a line.
Again this has something to do with back pressure from clogged DPF.
Check the harness for factory painted GND post, interact with module them tackle pressure issue.
Last edited by CaliBenzDriver; Apr 10, 2025 at 12:55 AM.
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W213 All-terrain
More likely is about one High pressure EGR that return the gases before the DPF and a low pressure EGR that's use the cleaned gases behind the DPF.
I would start with a real diagnosis.
I would start with a real diagnosis.
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