Should the vehicles mentioned above experience a defect of the cabin fan, the possible cause might be frozen water inside the fan enclosure.
Under certain conditions, falling snow can enter the fan enclosure via the fresh air intake.
There, it may condensate and freeze during low outside temperature, thus blocking the fan motor. Vehicles with Climatronic will then display the following error codes:
To eliminate the problem, uninstall the fan motor and check. If no damage is evident, the motor can be reinstalled. Bore a hole with a 4 mm diameter at the deepest point of the fan enclosure. This ensures that the accumulated water will be drained.
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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