The coolant temperature warning light may suddenly flash on the vehicles listed above. Code P00B7 (engine coolant flow insufficient) is stored in the error memory.
The cause may be an insufficient delivery rate of the coolant pump (in certain operating situations).
To remedy the fault, a modified coolant pump (55579016) should be installed.
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.
Not helpful at all
Very helpful