If the above-mentioned fault pattern is discovered shortly after damage has occurred to the turbocharger, the problem can stem from contamination in the charge air system. In the event of damage to the turbocharger, fine particles of metal debris or chips can remain in the intake system. These contaminants are drawn in and can damage the measuring foil of the air mass sensor. In some cases such a fault pattern only manifests itself 2 to 3 weeks after the renewal of the turbocharger.
In order to avoid possible subsequent damage after the changing of the turbocharger, the intake system should be checked beforehand and cleaned if necessary.
Further information can be found in the technical information:
"Replacing a charge air cooler following a turbocharger defect"
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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