Audi A6 (4F2, C6) 04.2004 - 08.2011. This is the compressor air relief valve (4F0616005) for the Audi A6/S6 C6. Audi S6 quattro (4F2,4F5 C6) 03.2006 - 08.2011. Audi A6 Avant (4F5, C6) 11.2004 - 08.2011.
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