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The A6 is Audi's executive sedan, covered from the 1994 C4 through the C5, C6, C7 and C8 generations. Engines range from four-cylinder TFSI and V6 TDI units to the supercharged and turbo 3.0-liter V6.


Model year 2020 is part of the A6 C8 generation (2019–2026). Most procedures are shared with the other years of this generation, but engines, options and wiring changed from year to year, so the manual is made for the 2020 model year.
Check the model year on your VIN: on a 2020 vehicle the 10th character of the 17-digit VIN is “L”. Vehicles built for North America always carry the model year in that position; on some European or Australian vehicles it may be left unused, so in that case go by the registration papers or the build plate.
At about 6 years old, a 2020 vehicle is usually past its basic warranty. Typical jobs at this age are brakes, suspension parts, fluids, the 12V battery and diagnosing sensor faults with the factory wiring diagrams.
Same generation: 2019 Audi A6, 2021 Audi A6, 2022 Audi A6, 2023 Audi A6, 2024 Audi A6, 2025 Audi A6, 2026 Audi A6.
All Audi A6 model years: 1994 · 1995 · 1996 · 1997 · 1998 · 1999 · 2000 · 2001 · 2002 · 2003 · 2004 · 2005 · 2006 · 2007 · 2008 · 2009 · 2010 · 2011 · 2012 · 2013 · 2014 · 2015 · 2016 · 2017 · 2018 · 2019 · 2020 · 2021 · 2022 · 2023 · 2024 · 2025 · 2026
Engines
4-cylinder TDI engine, 2.0 ltr. 4-valve common rail (EA 288 EVO) DEZD DEZF DFBA
4-cylinder direct injection engine (2.0 ltr. 4-valve TFSI, EA 888 Gen. III) DKNA DKWB DLHA DLHB DLGA DPMA DKWC
4-cylinder direct injection engine (2.0 ltr. 4-valve TFSI, EA 888 Gen. III, B cycle) DKUA DKYA
4-cylinder direct injection engine (2.0 ltr. 4-valve TFSI, EA888evo4) DMTA DPAA DMTC DPUA DPVA DUVA DRYA
6-cylinder TDI engine, 3.0 ltr. 4-valve common rail (EA 897 - Gen. II) DDVB DDVE DDVF
6-cylinder TDI engine, 3.0 ltr. 4-valve common rail (EA 897 - Gen. III) DPXA DPXB DMGA DMGH DMGK
6-cylinder TDI engine, 3.0 ltr. 4-valve common rail (EA 897 - Gen. II, S6, S7) DEWA
6-cylinder TDI engine, 3.0 ltr. 4-valve common rail (EA 897 Gen. I) CVMD
6-cylinder direct injection engine (2.9 ltr., 3.0 ltr. 4-valve TFSI EA 839) DKMB DLZA
6-cylinder TDI engine, 3.0 ltr. 4-valve common rail (EA 897 Gen. III, S4, S5, S6, S7, SQ5) DMKC DMKD
8-cylinder direct injection engine (4.0 ltr. 4-valve TFSI EA 825) DJPB
