2002 Audi A4 Gas Tank Size & Fuel Capacity
Fuel tank capacity
17.4–18.5gal · 66–70 L
The 2002 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 261–370 miles around town, going by the EPA ratings.
18.5 gal · Smaller than 58% of 2002 models we list.
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2002 Audi A4 fuel tank capacity by trim
What changes the tank sizeTap an option to filter the table
- Drive
- Engine
All 11 trims
MPG and range are city / highway.
| Trim | Engine | Drive | Tank | MPG city / hwy | Range city / hwy | |
|---|---|---|---|---|---|---|
| 1.8T Avant quattro AWD 4dr Wagon 1.8L 4cyl Turbo 5A · AWD MPG 17 / 26Range 296 / 452 mi | 1.8L 4cyl Turbo 5A | AWD | 17.4 gal66 L | 17 / 26 | 296 / 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 17 / 26Range 296 / 452 mi | 1.8L 4cyl Turbo 5A | AWD | 17.4 gal66 L | 17 / 26 | 296 / 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 15 / 23Range 261 / 400 mi | 3.0L 6cyl 5A | AWD | 17.4 gal66 L | 15 / 23 | 261 / 400 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 15 / 23Range 261 / 400 mi | 3.0L 6cyl 5A | AWD | 17.4 gal66 L | 15 / 23 | 261 / 400 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 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 18 / 26Range 333 / 481 mi | 1.8L 4cyl Turbo CVT | FWD | 18.5 gal70 L | 18 / 26 | 333 / 481 mi | |
| 3.0 Fwd 4dr Sedan 3.0L 6cyl CVT · FWD MPG 17 / 25Range 315 / 463 mi | 3.0L 6cyl CVT | FWD | 18.5 gal70 L | 17 / 25 | 315 / 463 mi | |
| No trim matches all of these filters. | ||||||
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 2002 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 20 MPG, a full 17.4-gallon tank covers about 348 miles.
| Gauge | Gallons | Highway miles | City miles |
|---|---|---|---|
| Full | 17.4 | 452 | 296 |
| 3/4 | 13.1 | 339 | 222 |
| 1/2 | 8.7 | 226 | 148 |
| 1/4 | 4.4 | 113 | 74 |
| 1/8 | 2.2 | 57 | 37 |
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 750 gallons, roughly 43 full tanks.
In real driving: owners who log fill-ups at fueleconomy.gov average 25.2 MPG in the A4 (10 drivers), about 438 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 2002 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.
| Tank | Fuel | US avg / gal | From empty | From 1/4 tank |
|---|---|---|---|---|
| 17.4 gal | Premium | $5.28 | $91.87 | $68.90 |
| 18.5 gal | Premium | $5.28 | $97.68 | $73.26 |
By region, 17.4-gallon tank
| Region | Premium / gal | Fill 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)$3,960
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 tank changed for 2002: 17.4–18.5 gal, up from 16.4–16.6 gal on the 2001 A4.
| Model year | Tank | Longest highway range |
|---|---|---|
| 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 |
| 1997 A4 | 16.4 gal | 410 mi |
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2002 Audi A4 vs similar 2002 sedans
The A4 has the largest tank of the six 2002 sedans compared here, 18.5 gallons against 18.5 for the Volvo S60.
| 2002 model | Tank | Longest highway range |
|---|---|---|
| Audi A4 | 17.4–18.5 gal | 537 mi |
| Volvo S60 | 18.5 gal | 481 mi |
| Lexus IS 300 | 17.5 gal | 403 mi |
| BMW 3 Series | 16.6 gal | 448 mi |
| Mercedes-Benz C-Class | 16.4 gal | 426 mi |
| Jaguar X-Type | 16.0 gal | 400 mi |
Other 2002 sedans of a similar size, one model per brand.
2002 Audi A4 fuel system recalls
None of the 1 recall NHTSA lists for the 2002 Audi A4 involve the fuel system.
Frequently asked questions
What is the fuel tank capacity of the 2002 Audi A4?
The 2002 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 4dr Sedan (1.8L 4cyl Turbo 5M).
How many gallons and liters does the 2002 Audi A4 gas tank hold?
The 2002 Audi A4 tank holds 66–70 liters, or 17.4–18.5 gallons in US gallons.
Which 2002 Audi A4 has the biggest gas tank?
The 18.5-gallon tank is on the 1.8T Fwd 4dr Sedan, 1.8T Fwd 4dr Sedan, 3.0 Fwd 4dr Sedan. The smallest tank, 17.4 gallons, is on the 1.8T Avant quattro AWD 4dr Wagon.
Does AWD change the 2002 Audi A4 gas tank?
Yes. AWD: 17.4 gal; FWD: 18.5 gal.
How far can a 2002 Audi A4 go on a full tank?
About 400–537 miles on the highway and 261–370 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 2002 Audi A4 go on a quarter tank?
About 113 highway miles or 74 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 2002 Audi A4 really get on a tank?
Drivers who log their fill-ups at fueleconomy.gov average 25.2 MPG in the 2002 Audi A4 (10 drivers), which works out to about 438 miles on a full 17.4-gallon tank.
What gas does the 2002 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 2002 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 2002 Audi A4?
About 115 pounds for the 18.5-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Does the 2002 Audi A4 have a bigger gas tank than the Mercedes-Benz C-Class?
Yes. The 2002 Audi A4 holds up to 18.5 gallons; the 2002 Mercedes-Benz C-Class holds up to 16.4.
Has the 2002 Audi A4 had a fuel pump or fuel system recall?
No. None of the 1 recall NHTSA lists for the 2002 Audi A4 involve the fuel system.
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.