Bluetec with code P203D - MBWorld.org Forums

Jan 10, 2018 | 06:48 PM

littlehandegan

Thread Starter

Member

Joined: Feb 2009

Posts: 246

Likes: 2

From: Charleston, SC

Gelandewagen

Bluetec with code P203D

2011, 42,000 miles, getting P203D code.

Is it the adblue heater?

Jan 11, 2018 | 09:20 AM

kbob999

Super Member

Joined: Jul 2014

Posts: 992

Likes: 245

From: Tucson, AZ

'20 X5 M50i; '17 Ram 3500; Golf Cart; Bikes; Scooters

A quick Google search shows you could be low on adblue fluid, or have a bad Nox sensor:
https://mbworld.org/forums/diesel-fo...ml#post6918296

Let us know what fixes it.

Jan 11, 2018 | 11:09 AM

kajtek1

MBWorld Fanatic!

Joined: Jan 2009

Posts: 9,224

Likes: 1,797

From: V E G A S

1922 Ford Model T / no OBD

Don't wait long. Those cars have programs that when CEL is neglected on AddBLue codes - at some point it will start 10 starts countdown.

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