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P02CD - Clyinder 1 Fuel Injection max Learning

Old Jan 26, 2018 | 11:23 PM
  #1  
CdnNick's Avatar
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2014 ML350 bluetec
P02CD - Clyinder 1 Fuel Injection max Learning

Vehicle is 2014 ML 350 Bluetec
recently the light came on.. zero issue.. then at idle about a week later now it’s having a bit of a rough idle, but only in park.. in gear it’s fine.
doesnt madly fluctuate rpm.. just rougher then usual.
110,000kms
due for B service in 10,000

Also has stored clyinder 1 and stored cylinder 4
thats front of engine.
not sure why 1 is permeant and 4 is only stored.
I can check some simple stuff tomorrow, any suggestions? Ive hard the diesel isn’t great this winter, but just water in it.. The filter / separator should be able to keep up and there should be a code if it sensed that.
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Old Apr 9, 2020 | 11:09 AM
  #2  
Chamelleon's Avatar
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Joined: Aug 2019
Posts: 58
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From: Calgary, Canada
ML500, ML350 BT, GLE 400
Hi there.

I am having the same issues: rogue idle only in P gear, CEL and after scanning it popped out the code P02CD.

Any advice?

Thank you
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Old Apr 9, 2020 | 11:24 AM
  #3  
CdnNick's Avatar
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2014 ML350 bluetec
Yea I figured it out..
crappy fuel and or lack of cetane..
I use a cetane additive and it hasn’t come back.
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Old Nov 24, 2020 | 09:01 PM
  #4  
gsehmbi89's Avatar
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2014 Mercedes ML350 Bluetec
I am having the same problem as well. I also ended up topping up my DEF fluid and it took the entire jug of it.

Going to try a cetane additive and hope that it clears it.
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Old Mar 30, 2021 | 02:06 AM
  #5  
Ryan Okion's Avatar
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2014 GL350
Originally Posted by CdnNick
Yea I figured it out..
crappy fuel and or lack of cetane..
I use a cetane additive and it hasn’t come back.
What brand of cetane additive you used? Thanks
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Old Mar 30, 2021 | 02:09 AM
  #6  
Ryan Okion's Avatar
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2014 GL350
Originally Posted by gsehmbi89
I am having the same problem as well. I also ended up topping up my DEF fluid and it took the entire jug of it.

Going to try a cetane additive and hope that it clears it.
​​​​​​After you fill up the DEF, is the code went off?
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