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2003 Audi A4 Gas Tank Size & Fuel Capacity

Sedan 13 trims listed 2 fuel-system recalls ← 2002 2004 →

Fuel tank capacity

17.4–18.5gal · 66–70 L

The 2003 Audi A4 has a fuel tank capacity of 17.4 to 18.5 gallons (66–70 liters), depending on the trim. The most common size is 17.4 gallons, used on 8 trims.

A full tank is good for roughly 400–537 highway miles or 278–370 miles around town, going by the EPA ratings.

18.5 gal · Smaller than 61% of 2003 models we list.

Highway range
400–537 mi
City range
278–370 mi
Fuel
Premium unleaded (required)
EPA combined
18–23 MPG
EPA size class
Compact Cars

2003 Audi A4 fuel tank capacity by trim

What changes the tank sizeTap an option to filter the table

Drive
Engine

All 13 trims

MPG and range are city / highway.

TrimEngineDrive Tank MPG city / hwy Range city / hwy
1.8T Avant quattro AWD 4dr Wagon 1.8L 4cyl Turbo 5A · AWD MPG 18 / 26Range 313 / 452 mi 1.8L 4cyl Turbo 5A AWD 17.4 gal66 L 18 / 26 313 / 452 mi
1.8T Avant quattro AWD 4dr Wagon 1.8L 4cyl Turbo 5M · AWD MPG 18 / 26Range 313 / 452 mi 1.8L 4cyl Turbo 5M AWD 17.4 gal66 L 18 / 26 313 / 452 mi
1.8T quattro AWD 4dr Sedan 1.8L 4cyl Turbo 5A · AWD MPG 18 / 26Range 313 / 452 mi 1.8L 4cyl Turbo 5A AWD 17.4 gal66 L 18 / 26 313 / 452 mi
1.8T quattro AWD 4dr Sedan 1.8L 4cyl Turbo 5M · AWD MPG 18 / 26Range 313 / 452 mi 1.8L 4cyl Turbo 5M AWD 17.4 gal66 L 18 / 26 313 / 452 mi
3.0 Avant quattro AWD 4dr Wagon 3.0L 6cyl 5A · AWD MPG 16 / 24Range 278 / 418 mi 3.0L 6cyl 5A AWD 17.4 gal66 L 16 / 24 278 / 418 mi
3.0 Avant quattro AWD 4dr Wagon 3.0L 6cyl 6M · AWD MPG 16 / 23Range 278 / 400 mi 3.0L 6cyl 6M AWD 17.4 gal66 L 16 / 23 278 / 400 mi
3.0 quattro AWD 4dr Sedan 3.0L 6cyl 5A · AWD MPG 16 / 24Range 278 / 418 mi 3.0L 6cyl 5A AWD 17.4 gal66 L 16 / 24 278 / 418 mi
3.0 quattro AWD 4dr Sedan 3.0L 6cyl 6M · AWD MPG 16 / 23Range 278 / 400 mi 3.0L 6cyl 6M AWD 17.4 gal66 L 16 / 23 278 / 400 mi
1.8T Fwd 2dr Convertible 1.8L 4cyl Turbo CVT · FWD MPG 20 / 28Range 370 / 518 mi 1.8L 4cyl Turbo CVT FWD 18.5 gal70 L 20 / 28 370 / 518 mi
1.8T Fwd 4dr Sedan 1.8L 4cyl Turbo 5M · FWD MPG 20 / 29Range 370 / 537 mi 1.8L 4cyl Turbo 5M FWD 18.5 gal70 L 20 / 29 370 / 537 mi
1.8T Fwd 4dr Sedan 1.8L 4cyl Turbo CVT · FWD MPG 20 / 27Range 370 / 500 mi 1.8L 4cyl Turbo CVT FWD 18.5 gal70 L 20 / 27 370 / 500 mi
3.0 Fwd 2dr Convertible 3.0L 6cyl CVT · FWD MPG 18 / 25Range 333 / 463 mi 3.0L 6cyl CVT FWD 18.5 gal70 L 18 / 25 333 / 463 mi
3.0 Fwd 4dr Sedan 3.0L 6cyl CVT · FWD MPG 18 / 26Range 333 / 481 mi 3.0L 6cyl CVT FWD 18.5 gal70 L 18 / 26 333 / 481 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 2003 Audi A4 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 21 MPG, a full 17.4-gallon tank covers about 365 miles.

GaugeGallonsHighway milesCity miles
Full17.4452313
3/413.1339235
1/28.7226157
1/44.411378
1/82.25739

Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 714 gallons, roughly 41 full tanks.

In real driving: owners who log fill-ups at fueleconomy.gov average 24 MPG in the A4 (18 drivers), about 418 miles on a full 17.4-gallon tank.

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
18–23 MPG
Tailpipe CO2
386–494 g/mi
Source
EPA ratings

What it costs to fill up a 2003 Audi A4

$91.87 to fill the 17.4-gallon tank from empty with premium, at this week's US average of $5.28 a gallon.

TankFuelUS avg / galFrom emptyFrom 1/4 tank
17.4 galPremium$5.28$91.87$68.90
18.5 galPremium$5.28$97.68$73.26

By region, 17.4-gallon tank

RegionPremium / galFill from empty
East Coast$4.93$85.78
Midwest$5.37$93.44
Gulf CoastLowest$4.57$79.52
Rocky Mountain$5.12$89.09
West Coast$6.08$105.79
CaliforniaHighest$6.36$110.66

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

  • 17.4-gallon tank$91.87
  • 18.5-gallon tank$97.68
  • A year of driving (15,000 mi)$3,771

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

A4 tank size in other years

The 2003 A4 uses the same 17.4–18.5 gal tank sizes as the 2002 model.

Model yearTankLongest highway range
2008 A4 16.6–18.5 gal 574 mi
2007 A4 16.6–18.5 gal 574 mi
2006 A4 16.6–18.5 gal 574 mi
2005 A4 16.6–18.5 gal 574 mi
2004 A4 16.6–18.5 gal 537 mi
2003 A4 17.4–18.5 gal 537 mi
2002 A4 17.4–18.5 gal 537 mi
2001 A4 16.4–16.6 gal 481 mi
2000 A4 15.6–16.4 gal 476 mi
1999 A4 15.6–16.4 gal 476 mi
1998 A4 16.4 gal 476 mi
Audi A4 fuel tank by model yearSmallest tank Larger tank options
199619971998199920002001200220032004200520062007200820092010201120122013201420152016201720182019202020212022202320242025
← 2002 Audi A4 Every A4 year 2004 Audi A4 →

2003 Audi A4 vs similar 2003 sedans

The A4 has the largest tank of the seven 2003 sedans compared here, 18.5 gallons against 18.5 for the Volvo S60.

2003 modelTankLongest highway range
Audi A4 17.4–18.5 gal 537 mi
Volvo S60 18.5 gal 500 mi
Lexus IS 300 17.5 gal 403 mi
Saab 9-3 16.4–16.9 gal 490 mi
BMW 3 Series 16.6 gal 448 mi
Mercedes-Benz C-Class 16.4 gal 459 mi
Jaguar X-Type 16.0 gal 400 mi

Other 2003 sedans of a similar size, one model per brand.

2003 Audi A4 fuel system recalls

NHTSA lists 2 fuel-system recalls for the 2003 Audi A4, out of 3 recalls in total. A recall applies only to the vehicles named in it, so check your VIN.

Delivery · Fuel pumpAug 28, 2007 · NHTSA 07V375000 · Volkswagen Of America, Inc · 34,358 vehicles

On certain vehicles equipped with 1.8l turbo, 2.8l v6, or 3.0l engines, a change in the electrical motor components in the fuel pump can lead to an inoperative fuel pump and, ultimately, stoppage of fuel supply to the engine causing it to stall.

Risk and remedy

Risk: If fuel flow to the engine is interrupted, the vehicle could stall without warning and thus present a potential risk of crash.

Remedy: Dealers will install new fuel pumps free of charge. The recall began on september 28, 20007. Owners may contact vw at 1-800-222-8987 or audi at 1-800-822-2834. This recall is a supplement to a previous campaign (please see 06v017).

Delivery · Fuel pumpJan 23, 2006 · NHTSA 06V017000 · Volkswagen Of America, Inc · 74,000 vehicles

On certain vehicles produced from september 2002 - march 2003, equipped with 1.8l turbo, 2.8l v6, or 3.0l engines, a change in the electrical motor components in the fuel pump can lead to an inoperative fuel pump and, ultimately, stoppage of fuel supply to the engine causing it to stall.

Risk and remedy

Risk: If fuel flow to the engine is interrupted, the vehicle could stall without warning and thus present a potential risk of crash.

Remedy: Dealers will install new fuel pumps free of charge. The recall began on april 10, 2006. Owners may contact vw at 1-800-222-8987 or audi at 1-800-822-2834.

All Audi fuel recalls Look up your tank by VIN

Frequently asked questions

What is the fuel tank capacity of the 2003 Audi A4?

The 2003 Audi A4 holds between 17.4 and 18.5 gallons, depending on the trim. 17.4 gallons is the usual size; the 18.5-gallon tank comes on the 1.8T Fwd 2dr Convertible (1.8L 4cyl Turbo CVT).

How many gallons and liters does the 2003 Audi A4 gas tank hold?

The 2003 Audi A4 tank holds 66–70 liters, or 17.4–18.5 gallons in US gallons.

Which 2003 Audi A4 has the biggest gas tank?

The 18.5-gallon tank is on the 1.8T Fwd 2dr Convertible, 1.8T Fwd 4dr Sedan, 1.8T Fwd 4dr Sedan and 2 other trims. The smallest tank, 17.4 gallons, is on the 1.8T Avant quattro AWD 4dr Wagon.

Does AWD change the 2003 Audi A4 gas tank?

Yes. AWD: 17.4 gal; FWD: 18.5 gal.

How far can a 2003 Audi A4 go on a full tank?

About 400–537 miles on the highway and 278–370 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 2003 Audi A4 go on a quarter tank?

About 113 highway miles or 78 in town from the 17.4-gallon tank, which has roughly 4.4 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.

How many miles does a 2003 Audi A4 really get on a tank?

Drivers who log their fill-ups at fueleconomy.gov average 24 MPG in the 2003 Audi A4 (18 drivers), which works out to about 418 miles on a full 17.4-gallon tank.

What gas does the 2003 Audi A4 take?

Premium unleaded (required). The label inside the fuel door confirms it for your car.

How much does it cost to fill up a 2003 Audi A4?

At the US average of $5.28 a gallon for premium (EIA, week of October 26, 2026), filling the 17.4-gallon tank from empty costs $91.87. It ranges from $79.52 in the Gulf Coast to $110.66 in California.

How much does a full tank of gas weigh in a 2003 Audi A4?

About 115 pounds for the 18.5-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.

Does the 2003 Audi A4 have a bigger gas tank than the Volvo S60?

No, they match: both top out at 18.5 gallons in 2003.

Has the 2003 Audi A4 had a fuel pump or fuel system recall?

Yes. NHTSA lists 2 fuel-system recalls for the 2003 Audi A4: 07V375000 (delivery · fuel pump); 06V017000 (delivery · fuel pump). 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).
  • Real-world MPG: driver-reported fill-ups shared at fueleconomy.gov (My MPG).

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

Other 2003 Audi models

A618.5–21.7 gallons A823.7–24.2 gallons allroad quattro18.5 gallons RS 621.7 gallons S621.7 gallons S823.8 gallons TT14.5–16.3 gallons