If a customer complains about the above problem, this could be caused by the servo motor for the swirl flaps (see Fig. 1). Oil may reach the servo motor through the air hose. Under certain circumstances this can cause a short circuit inside the servo motor. This causes the engine to go into emergency mode, resulting in fault code entries for the servomotor. In addition, the fuses for the motor control unit (F43, F44, Fig. 2) may blow. They are located in the fuse box in the engine compartment. The fuse box is located on the front left, near the splash wall. In this case, the servo motor must be replaced. Furthermore, the oil deposits in the turbocharger hose should be removed and the fuses should be replaced if necessary. Clear the fault codes after the repair.
Fig. 1
Fig. 2
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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