If the above-mentioned problem occurs, the cause could be an insufficiently charged starter battery. Due to the different specifications of the engine control unit and the PHEV (plug-in hybrid electric vehicle) control unit, it is possible for the communication between these control units to be faulty.
This, in turn, can lead to an insufficiently charged starter battery.
Note:
Components under high voltage.
When working on high voltage components (HV), it is absolutely essential that the complete vehicle electrical system is switched off and voltage-free beforehand. Only specially qualified persons may carry out this work (experts in working on HV intrinsically safe systems in vehicles).
Remedy:
In an authorized specialist garage, have the software of the control units updated and the spark plugs replaced.
Internal campaign code: R30331 11
This is documented in the service book.
The vehicle manufacturer has already addressed the issue and notified the owners of all the models concerned. For various reasons, however, it must be assumed that not all vehicles have been checked or rectified.
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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