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Audi A6 problems: all generations

We have documented 4 generations of the Audi A6: A6 C5 (1997–2004), A6 C6 (2004–2011), A6 C7 (2011–2018) and A6 C8 (2018–today). The one with the best score is the Audi A6 C8 (6.3/10). Choose the generation or the year to see its faults, the engines best avoided and what to check before buying.

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  1. Audi A6 C5

    1997–2004 · code 4B

    Engines and gearboxes: 1.9 TDI, Multitronic gearbox

    Most serious fault: Critical severity

    3.5 out of 10MotorFiable Score

  2. Audi A6 C6

    2004–2011 · code 4F

    Engines and gearboxes: Multitronic gearbox, 3.0 TDI V6, ZF 6HP gearbox, 2.0 TDI, Audi 3.0 TFSI V6

    Most serious fault: Critical severity

    4.6 out of 10MotorFiable Score

  3. Audi A6 C7

    2011–2018 · code 4G

    Engines and gearboxes: Multitronic gearbox, 3.0 TDI V6, Audi 3.0 TFSI V6, ZF 8HP gearbox, 2.0 TDI

    Most serious fault: Critical severity

    4.9 out of 10MotorFiable Score

  4. Audi A6 C8

    2018–today

    Engines and gearboxes: 3.0 TDI V6, Audi 3.0 TFSI V6

    Most serious fault: Critical severity

    6.3 out of 10MotorFiable Score

Problems with Audi cars · Audi A6 warning lights · Least reliable cars