Due to cracks in the expansion tank return nozzle, a loss of coolant may be experienced in the above vehicles.
These cracks are caused by thermal loads and may lead to a loss of coolant. If the engine temperature increases as a result of this, acoustic and visual signals will be issued accordingly by the instrument cluster. If necessary, the engine will switch to "emergency running."
In order to remedy the problem, the expansion tank should be check and, if necessary, replaced.
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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