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2020 Audi A3 Gas Tank Size & Fuel Capacity

Sedan 4 trims listed 1 fuel-system recall ← 2019 2022 →

Fuel tank capacity

13.2–14.5gal · 50–55 L

The 2020 Audi A3 has a fuel tank capacity of 13.2 to 14.5 gallons (50–55 liters), depending on the trim. The most common size is 14.5 gallons, used on 2 trims.

A full tank is good for roughly 435–475 highway miles or 319–356 miles around town, going by the EPA ratings.

14.5 gal · Smaller than 78% of 2020 models we list.

Highway range
435–475 mi
City range
319–356 mi
Fuel
Regular unleaded
EPA combined
25–30 MPG
EPA size class
Subcompact Cars

2020 Audi A3 fuel tank capacity by trim

What changes the tank sizeTap an option to filter the table

Drive

All 4 trims

MPG and range are city / highway.

TrimEngineDrive Tank MPG city / hwy Range city / hwy
Sport Premium 4dr Sedan 2.0L 4cyl Turbo 7AM · FWD MPG 27 / 36Range 356 / 475 mi 2.0L 4cyl Turbo 7AM FWD 13.2 gal50 L 27 / 36 356 / 475 mi
Sport Premium Plus 4dr Sedan 2.0L 4cyl Turbo 7AM · FWD MPG 27 / 36Range 356 / 475 mi 2.0L 4cyl Turbo 7AM FWD 13.2 gal50 L 27 / 36 356 / 475 mi
Premium Plus S line 4dr Sedan AWD 2.0L 4cyl Turbo 7AM · AWD MPG 22 / 30Range 319 / 435 mi 2.0L 4cyl Turbo 7AM AWD 14.5 gal55 L 22 / 30 319 / 435 mi
Premium S line 4dr Sedan AWD 2.0L 4cyl Turbo 7AM · AWD MPG 22 / 30Range 319 / 435 mi 2.0L 4cyl Turbo 7AM AWD 14.5 gal55 L 22 / 30 319 / 435 mi

Tank figures are the manufacturer's rated capacity, sorted smallest tank first. Range is tank size times EPA city or highway MPG.

How far a 2020 Audi A3 goes on a tank

Gallons left and the distance they cover at each mark on the fuel gauge, at EPA city and highway mileage. At the combined rating of 25 MPG, a full 14.5-gallon tank covers about 363 miles.

GaugeGallonsHighway milesCity miles
Full14.5435319
3/410.9326239
1/27.3218160
1/43.610980
1/81.85440

Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 600 gallons, roughly 41 full tanks.

Fuel gauges aren't perfectly linear and the low-fuel light comes on with a few gallons still in the tank, so plan your stop before the last eighth.

EPA combined
25–30 MPG
Tailpipe CO2
293–359 g/mi
EPA greenhouse score
5–7 of 10
Source
EPA ratings

What it costs to fill up a 2020 Audi A3

$61.91 to fill the 14.5-gallon tank from empty with regular, at this week's US average of $4.27 a gallon.

TankFuelUS avg / galFrom emptyFrom 1/4 tank
13.2 galRegular$4.27$56.36$42.27
14.5 galRegular$4.27$61.91$46.44

By region, 14.5-gallon tank

RegionRegular / galFill from empty
East Coast$4.02$58.29
Midwest$4.27$61.91
Gulf CoastLowest$3.70$53.65
Rocky Mountain$4.46$64.67
West Coast$5.42$78.59
CaliforniaHighest$5.89$85.41

Prices: U.S. Energy Information Administration retail averages for the week of October 26, 2026. This week's prices by state and city.

Your own price

  • 13.2-gallon tank$56.36
  • 14.5-gallon tank$61.91
  • A year of driving (15,000 mi)$2,562

Starts at the US average for regular; type in what your station charges. For other tank sizes, use the fill-up calculator.

A3 tank size in other years

The 2020 A3 uses the same 13.2–14.5 gal tank sizes as every A3 since 2018.

Model yearTankLongest highway range
2026 A3 14.5 gal 493 mi
2025 A3 14.5 gal 493 mi
2024 A3 13.2–14.5 gal 493 mi
2023 A3 13.2–14.5 gal 508 mi
2022 A3 13.2–14.5 gal 522 mi
2020 A3 13.2–14.5 gal 475 mi
2019 A3 13.2–14.5 gal 462 mi
2018 A3 13.2–14.5 gal 508 mi
2016 A3 13.2–14.5 gal 568 mi
2015 A3 13.2–14.5 gal 568 mi
2013 A3 14.5–15.8 gal 613 mi
Audi A3 fuel tank by model yearSmallest tank Larger tank options
200620072008200920102011201220132015201620182019202020222023202420252026
← 2019 Audi A3 Every A3 year 2022 Audi A3 →

2020 Audi A3 vs similar 2020 sedans

At 14.5 gallons, the A3's largest tank ranks fourth of the seven 2020 sedans compared here. The Jaguar XE carries the most (16.6 gal) and the Acura ILX the least (13.2 gal).

2020 modelTankLongest highway range
Jaguar XE 16.6 gal 564 mi
Genesis G70 15.8 gal 474 mi
Alfa Romeo Giulia 15.3 gal 505 mi
Audi A3 13.2–14.5 gal 475 mi
Mercedes-Benz A-Class 13.5 gal 473 mi
BMW 2 Series Gran Coupe 13.2 gal 436 mi
Acura ILX 13.2 gal 449 mi

Other 2020 sedans of a similar size, one model per brand.

2020 Audi A3 fuel system recalls

NHTSA lists 1 fuel-system recall for the 2020 Audi A3, out of 3 recalls in total. A recall applies only to the vehicles named in it, so check your VIN.

Fuel systemFeb 14, 2024 · NHTSA 24V110000 · Volkswagen Group Of America, Inc. · 261,257 vehicles

Volkswagen Group of America, Inc. (Volkswagen) is recalling certain front-wheel drive 2015-2020 Audi A3 Sedan, 2015-2019 Audi A3 Cabriolet, 2019-2020 Volkswagen Jetta GLI, 2018 Golf Sportwagen GP, 2018-2019 Golf Sportwagen A7, 2015-2017 Golf Sportwagen, 2015-2020 Golf GTI, and 2015-2020 Golf A7 vehicles. Due to a problem with a suction jet pump seal inside the fuel tank, fuel may flow into the evaporative emissions (EVAP) system and possibly leak out of the charcoal canister.

Risk and remedy

Risk: A fuel leak in the presence of an ignition source increases the risk of a fire.

Remedy: Dealers will replace the suction pump, free of charge. Final owner notification letters for Audi owners were mailed on July 25, 2024. Final owner letters for VW owners were mailed on August 13, 2024. Owners may contact Volkswagen customer service at 1-800-893-5298 or Audi customer service at 1-800-253-2834. Volkswagen's numbers for this recall are VW: 20UF/Audi: 20YF. Vehicles that were previously recalled under 16V-647 will need to have the new remedy completed. This recall expands and replaces previous recall number 16V-647.

All Audi fuel recalls Look up your tank by VIN

Frequently asked questions

What is the fuel tank capacity of the 2020 Audi A3?

The 2020 Audi A3 holds between 13.2 and 14.5 gallons, depending on the trim. 14.5 gallons is the usual size; the smaller 13.2-gallon tank is on the Sport Premium 4dr Sedan.

How many gallons and liters does the 2020 Audi A3 gas tank hold?

The 2020 Audi A3 tank holds 50–55 liters, or 13.2–14.5 gallons in US gallons.

Which 2020 Audi A3 has the biggest gas tank?

The 14.5-gallon tank is on the Premium Plus S line 4dr Sedan AWD, Premium S line 4dr Sedan AWD. The smallest tank, 13.2 gallons, is on the Sport Premium 4dr Sedan.

Does AWD change the 2020 Audi A3 gas tank?

Yes. FWD: 13.2 gal; AWD: 14.5 gal.

How far can a 2020 Audi A3 go on a full tank?

About 435–475 miles on the highway and 319–356 miles in town, going from full to empty at its EPA ratings. Expect less in practice, since nobody runs the tank dry.

How many miles can a 2020 Audi A3 go on a quarter tank?

About 109 highway miles or 80 in town from the 14.5-gallon tank, which has roughly 3.6 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.

What gas does the 2020 Audi A3 take?

Regular unleaded. The label inside the fuel door confirms it for your car.

How much does it cost to fill up a 2020 Audi A3?

At the US average of $4.27 a gallon for regular (EIA, week of October 26, 2026), filling the 14.5-gallon tank from empty costs $61.91. It ranges from $53.65 in the Gulf Coast to $85.41 in California.

How much does a full tank of gas weigh in a 2020 Audi A3?

About 90 pounds for the 14.5-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.

Does the 2020 Audi A3 have a bigger gas tank than the Mercedes-Benz A-Class?

Yes. The 2020 Audi A3 holds up to 14.5 gallons; the 2020 Mercedes-Benz A-Class holds up to 13.5.

Has the 2020 Audi A3 had a fuel pump or fuel system recall?

Yes. NHTSA lists 1 fuel-system recall for the 2020 Audi A3: 24V110000 (fuel system). Check your VIN at nhtsa.gov/recalls to see if your car is affected.

Sources

  • Tank sizes: manufacturer-rated capacities from US-market specifications, checked against independent references. Updated October 2026.
  • MPG and range: EPA ratings (fueleconomy.gov). Range is tank size times EPA MPG.
  • Fuel prices: U.S. Energy Information Administration, week of October 26, 2026 (this week's prices).
  • Recalls: NHTSA recall database (Audi fuel system recalls).

Does your owner's manual say something different? Let us know and we'll fix it. More on how we check the numbers.

Other 2020 Audi models

A415.3 gallons A4 allroad15.3 gallons A515.3 gallons A619.3 gallons A6 allroad19.3 gallons A719.3 gallons A817.2–21.7 gallons Q315.9 gallons Q515.3–18.5 gallons Q722.5 gallons Q822.5 gallons R819.3–21.9 gallons