In the above vehicles, whistling noises can be produced when the air-conditioning system is operated. One possible cause could be vibrations in the "expansion valve/coolant hose" assembly.
A modified coolant hose with expansion valve is available from the auto manufacturer as a remedy. Vehicles up to the following vehicle identification no. may be affected:
SHSRE5***8U016571 / SHSRE7***8U004030
However, before replacing the hose assembly, it must be ensured that the noise is not caused by an incorrect coolant level.
For this vehicle, the fill level of R134a is 465g.
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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