A6 C5 (4B2, 4B4)1.8 T (110kW/150PS) · 1.8 T quattro (110kW/150PS) · 2.4 (121kW/165PS) · 2.4 quattro (121kW/165PS) · 2.8 (142kW/193PS) · 2.8 quattro (142kW/193PS) · 1.8 (92kW/125PS) · 2.7 T (169kW/230PS) · 2.7 T quattro (169kW/230PS) · 1.8 T quattro (132kW/180PS) · 2.4 (100kW/136PS) · 4.2 quattro (220kW/299PS) · 1.8 T (132kW/180PS) · 2.8 (132kW/180PS) · 2.8 (140kW/190PS) · 2.4 (115kW/156PS) · 3.0 (162kW/220PS) · 3.0 quattro (162kW/220PS) · 2.4 (125kW/170PS) · 2.4 quattro (125kW/170PS) · 2.4 (120kW/163PS) · 2.4 quattro (120kW/163PS) · 2.4 quattro (115kW/156PS) · 2.8 quattro (140kW/190PS)
A6 C5 Avant (4B5, 4B6)2.8 quattro (142kW/193PS) · 1.8 T (110kW/150PS) · 2.4 (121kW/165PS) · 2.8 (142kW/193PS) · 1.8 T quattro (110kW/150PS) · 2.4 quattro (121kW/165PS) · 2.7 T (169kW/230PS) · 2.7 T quattro (169kW/230PS) · 2.4 (100kW/136PS) · 1.8 T quattro (132kW/180PS) · 4.2 quattro (220kW/299PS) · 1.8 T (132kW/180PS) · 2.8 (132kW/180PS) · 2.8 (140kW/190PS) · 2.4 (115kW/156PS) · 2.4 (125kW/170PS) · 2.4 quattro (125kW/170PS) · 3.0 (162kW/220PS) · 3.0 quattro (162kW/220PS) · 2.4 (120kW/163PS) · 2.4 quattro (120kW/163PS) · 2.4 quattro (115kW/156PS)