Expansion Valve Sounds - A3 Documentary (Solution)

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Michael II
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29-08-2003, 9:22 Subject: Expansion Valve Sounds - A3 Documentary	Quote

Loud operating noises from the expansion valve at high ambient temperatures. Up to chassis number 8L YA 133 938. High-frequency whistling noises can occur at high ambient temperatures due to pressure pulsations within the refrigerant cycle. Solution: Install a new expansion valve with part number 6N0 820 679 C. Tschüss Michael II Translated on 02-10-2026, 11:09.

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