On the vehicle specified above, a complaint has been made that the engine warning light illuminates when traveling downhill over longer distances.
In addition, error codes P0201, P0202, P0203 and P0204 (synonymous with: injection valve / nozzle 1-4, power circuit malfunction) are stored in the engine control unit.
The cause could be a faulty calibration of the engine control unit.
The vehicle manufacturer has already addressed the issue.
A software update is available from CW 5 / 2013.
A changed software shall be used in the production from November 26, 2012 and chassis number WOLF7B1AEDV602062.
Important safety note
Technical information and practical tips have been compiled by HELLA in order to provide professional support to vehicle workshops in their day-to-day work. The information provided on this website is intended for use by suitably qualified personnel only.
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 and indication of the source. 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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