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 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.
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