ML 3 bluetec fault code P20E821
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Newbie
Joined: Apr 2017
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2011 ML 350 bluetec
ML 3 bluetec fault code P20E821
Generic code P20E8 refers to low pressure in the bluetec tank. MB code adds a 21 number to this code. Does this designate a subset to the low pressure such as a bad pump, fault wire connection, fuse, etc. .
Newbie
Joined: Feb 2018
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GL350
AdBlue Tank capacity is 31 Liters (full tank). When error code generated, I have 21 liters in tank. So Adblue is not empty.
still looking for cause of error code
P20E821 / P20E823
MBWorld Fanatic!
Joined: Oct 2011
Posts: 7,107
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From: Bronx, N.Y.
2002 ML 320 & 2006 ML500
If you are asking about a GL350, you are on the wrong forum.
https://mbworld.org/forums/gl-class-x166-173/
https://mbworld.org/forums/gl-class-x166-173/
