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Audi A6 Gas Tank Size & Fuel Capacity by Year

Sedan 1995–202632 model years

18.5–21.7gal · 70–82 L

Across 32 model years (1995–2026), the Audi A6 has used tanks from 18.5–21.7 gallons. The 2026 model holds 19.3 gallons.

Pick your model year

How the tank changed over the years

Audi A6 fuel tank by model yearSmallest tank Larger tank options
19951996199719981999200020012002200320042005200620072008200920102011201220132014201520162017201820192020202120222023202420252026

Audi A6 tank size by generation

Model years with the same tank sizes, grouped. A change usually marks a new generation or a redesign.

Model yearsTankLiters
2019–202619.3 gallons73 L
2017–201819.8 gallons75 L
2015–201619.2–19.8 gallons73–75 L
2012–201419.8 gallons75 L
2005–201121.1 gallons80 L
2000–200418.5–21.7 gallons70–82 L
1998–199918.5 gallons70 L
1996–199719.8–21.1 gallons75–80 L
199521.1 gallons80 L

Audi A6 tank size by year

YearTankLitersBest highway rangeTrims
2026 Audi A6 19.3 gallons 73 L 560 mi 3
2025 Audi A6 19.3 gallons 73 L 598 mi 5
2024 Audi A6 19.3 gallons 73 L 637 mi 5
2023 Audi A6 19.3 gallons 73 L 598 mi 5
2022 Audi A6 19.3 gallons 73 L 618 mi 5
2021 Audi A6 19.3 gallons 73 L 598 mi 8
2020 Audi A6 19.3 gallons 73 L 618 mi 6
2019 Audi A6 19.3 gallons 73 L 618 mi 5
2018 Audi A6 19.8 gallons 75 L 673 mi 10
2017 Audi A6 19.8 gallons 75 L 673 mi 7
2016 Audi A6 19.2–19.8 gallons 73–75 L 730 mi 8
2015 Audi A6 19.2–19.8 gallons 73–75 L 730 mi 8
2014 Audi A6 19.8 gallons 75 L 653 mi 8
2013 Audi A6 19.8 gallons 75 L 653 mi 7
2012 Audi A6 19.8 gallons 75 L 653 mi 2
2011 Audi A6 21.1 gallons 80 L 633 mi 4
2010 Audi A6 21.1 gallons 80 L 591 mi 4
2009 Audi A6 21.1 gallons 80 L 570 mi 4
2008 Audi A6 21.1 gallons 80 L 570 mi 4
2007 Audi A6 21.1 gallons 80 L 570 mi 4
2006 Audi A6 21.1 gallons 80 L 570 mi 4
2005 Audi A6 21.1 gallons 80 L 506 mi 2
2004 Audi A6 18.5–21.7 gallons 70–82 L 477 mi 7
2003 Audi A6 18.5–21.7 gallons 70–82 L 499 mi 6
2002 Audi A6 18.5–21.7 gallons 70–82 L 499 mi 6
2001 Audi A6 18.5–21.7 gallons 70–82 L 499 mi 5
2000 Audi A6 18.5–21.7 gallons 70–82 L 477 mi 5
1999 Audi A6 18.5 gallons 70 L 463 mi 3
1998 Audi A6 18.5 gallons 70 L 463 mi 4
1997 Audi A6 19.8–21.1 gallons 75–80 L 485 mi 4
1996 Audi A6 19.8–21.1 gallons 75–80 L 485 mi 4
1995 Audi A6 21.1 gallons 80 L 485 mi 4

Audi A6 fuel system recalls by year

NHTSA lists fuel-system recalls for 13 Audi A6 model years. Each year's page has the details, the risk and the free remedy.

Frequently asked questions

What size gas tank does the Audi A6 have?

The 2026 Audi A6 holds 19.3 gallons. Older years range from 18.5–21.7 gallons; the table has every year.

Has the tank size changed over the years?

Yes. The largest tank changed in 2019, 2012, 2005, 2000, 1998.

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