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 notice
The following technical information and tips for practical use have been set up by HELLA in order to offer professional support to automotive workshops in their daily work. The information available here on this website is only to be used by appropriately trained specialist staff.
The reprinting, distribution, reproduction, exploitation in any form and 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, figures and descriptions are for explanation and presentation of the document text and cannot be used as a basis for installation or design. All rights reserved.
Not helpful at all
Very helpful