This is the compressor air release valve (4G0616005) for the Audi A6 C7 / A7 4G. Audi A7 Sportback 4G (2010-2018). Audi A6 C7 4G (2010-2018). Compressor drain valve VW Phideon (3E) 2016+. Compressor drain valve Maybach 57, 62.
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