|Vehicle model||Boxer III|
|Engine||2.0 HDi / 2.2 HDi (with Euro 6.2)|
|Year of manufacture||01/09/2019 - 11/05/2021|
|Symptoms||Engine control lamp / SCR control lamp lights up|
Important safety note
Technical information and practical tips have been compiled by HELLA in order to provide professional support to vehicle workshops in their work. The information provided on this website is intended for use by suitably qualified personnel only.
On the above-mentioned vehicle, the “check engine” lamp or the SCR control lamp may suddenly light up while the car is being driven. The warning message appears in the instrument cluster: "Engine start in 100 KM no longer possible". At the same time, the error code P20EE (SCR exhaust gas treatment) is stored in the engine control unit.
A “software weakness” is the possible cause of the problem.
In order to rule out any other causes, all system-relevant electrical and mechanical components, including the power supply, should be checked before any software update is performed.
A software update can be carried out using Hella-Gutmann macsRemote Services or a pass-through-compatible diagnostic device from the mega macs series. Furthermore, registered access to the vehicle manufacturer's online portal is required. If the appropriate equipment is not available, please contact an authorised specialist workshop.
Reprinting, distribution, reproduction, exploitation in any form or disclosure of the contents of this document, even in part, is prohibited without our express, written approval; indication of the document source is also required. The schematic illustrations, pictures and descriptions serve only for the purposes of explanation and representation of the instructions and cannot be used as a basis for installation or assembly work. All rights reserved.
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