With the above-mentioned vehicles, "air flow" or "air stream" sounds may be heard while the air-conditioning system is running.
These sounds are usually transmitted via the refrigerant lines of the evaporator. In order to remedy this, the lines in the area of the evaporator or in the vehicle interior should be suitably insulated. It may be necessary to remove/replace various panelling and/or covers to do this.
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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