Engine codes. A6 C7 Avant (4G5, 4GD). Engine S6 quattro Engine codes CEUC Production years 2012/02 - 2018/09 kW 309 hp 420 ccm 3993. Engine 1.8 TFSI Engine codes CYGA Production years 2014/09 - 2018/09 kW 140 hp 190 ccm 1798.
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