The 2018 Audi A3 is a compact luxury sedan that is available with a variety of powertrains in the United States. The gas mileage for the A3 depends on the specific engine and transmission combination that is chosen. The standard engine for the 2018 A3 is a 2.0-liter turbocharged four-cylinder that produces 186 horsepower and 221 lb-ft of torque. This engine is paired with a seven-speed S tronic dual-clutch transmission and front-wheel drive. 

With this powertrain, the 2018 A3 gets an EPA-estimated fuel economy of 26 mpg city, 35 mpg highway, and 29 mpg combined. The A3 comes in a Sportback e-tron model, which is a plug-in hybrid that combines a 1.4-liter turbocharged four-cylinder engine and an electric motor for a total output of 204 horsepower. This version gets an EPA-estimated 83 MPGe when running on electric power and 32 mpg combined when running on gasoline.

2018 Audi A3 Latest Updates

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2018 Audi A3 City, Highway and Combined MPG and Fuel Range

Trim NameMPG CityMPG HighwayMPG CombinedFuel Tank CapacityRange in Miles
Premium Plus Summer of Audi 4dr Sedan (2.0L 4cyl Turbo 7AM)
Premium 4dr Sedan (2.0L 4cyl Turbo 7AM) w/Prod. End 6/18
Premium quattro 4dr Sedan AWD (2.0L 4cyl Turbo 6AM) w/Prod. End 6/18
Premium Plus 4dr Sedan (2.0L 4cyl Turbo 7AM) w/Prod. End 6/18
Premium Plus quattro 4dr Sedan AWD (2.0L 4cyl Turbo 6AM) w/Prod. End 6/18
Prestige 4dr Sedan (2.0L 4cyl Turbo 7AM)
Prestige quattro 4dr Sedan AWD (2.0L 4cyl Turbo 6AM)
Tech Premium 4dr Sedan (2.0L 4cyl Turbo 7AM)
Tech Premium quattro 4dr Sedan AWD (2.0L 4cyl Turbo 6AM)
S Tronic quattro 4dr Sedan AWD (2.5L 5cyl Turbo 7AM)
Tech Premium Plus quattro 4dr Sedan AWD (2.0L 4cyl Turbo 7AM)
Tech Prestige quattro 4dr Sedan AWD (2.0L 4cyl Turbo 7AM)
Premium Plus quattro Summer of Audi 4dr Sedan AWD (2.0L 4cyl Turbo 6AM)
Premium Summer of Audi 4dr Sedan (2.0L 4cyl Turbo 7AM)
Premium quattro Summer of Audi 4dr Sedan AWD (2.0L 4cyl Turbo 6AM)
+13 More
24 mpg31 mpg27 mpg14.5 gal.-

Used Audi A3 For Sale

View More
10
14
Price Drop, $499
Earlier Price: $14999
12 Aug 2022
Marietta, GA

2017 Audi A3 Premium

Premium 4dr Sedan (2.0L 4cyl Turbo 7AM)

$14,500
Est. $196/mo
Excellent Deal
$4,126 Below market
RMV: $18,626
Listed On 31 Mar 2022 (306 Days)
16
18New
Price Drop, $450
Earlier Price: $17950
31 Dec 2022
Orlando, FL

2018 Audi A3 Premium

Premium 4dr Sedan (2.0L 4cyl Turbo 7AM) w/Prod. End 6/18

$17,500
Est. $237/mo
Excellent Deal
$4,722 Below market
RMV: $22,222
Listed On 26 Nov 2022 (66 Days)
18
7
Price Drop, $1500
Earlier Price: $14000
29 Sep 2021
Pearland, TX

2017 Audi A3 Premium

Premium 4dr Sedan (2.0L 4cyl Turbo 7AM)

$12,500
Est. $169/mo
Excellent Deal
$3,150 Below market
RMV: $15,650
Listed On 27 Sep 2021 (491 Days)
1
48New
Bronx, NY

2018 Audi A3 Premium

Premium quattro 4dr Sedan AWD (2.0L 4cyl Turbo 6AM)

$16,995
Est. $230/mo
Excellent Deal
$3,942 Below market
RMV: $20,937
Listed On 17 Dec 2022 (45 Days)
3
32
Price Drop, $2000
Earlier Price: $18999
20 Sep 2022
Las Vegas, NV

2017 Audi A3 Premium

Premium 4dr Sedan (2.0L 4cyl Turbo 7AM)

$16,999
Est. $230/mo
Excellent Deal
$3,810 Below market
RMV: $20,809
Listed On 16 Aug 2022 (168 Days)
10
63New
Houston, TX

2017 Audi A3 Premium

Premium 4dr Sedan (2.0L 4cyl Turbo 7AM)

$18,300
Est. $248/mo
Excellent Deal
$3,834 Below market
RMV: $22,134
Listed On 25 Sep 2022 (128 Days)
11
41New
Price Drop, $9000
Earlier Price: $29990
22 Dec 2022
South Richmond Hill, NY

2018 Audi A3 Premium

Premium quattro 4dr Sedan AWD (2.0L 4cyl Turbo 6AM)

$20,990
Est. $284/mo
Excellent Deal
$4,029 Below market
RMV: $25,019
Listed On 16 Dec 2022 (46 Days)
9
25New
Price Drop, $490
Earlier Price: $21489
23 Dec 2022
Elmont, NY

2018 Audi A3 Premium

Premium quattro 4dr Sedan AWD (2.0L 4cyl Turbo 6AM)

$20,999
Est. $285/mo
Excellent Deal
$4,008 Below market
RMV: $25,007
Listed On 12 Nov 2022 (80 Days)
12
6New
Price Drop, $1872
Earlier Price: $26895
9 Dec 2022
Cottage Grove, OR

2017 Audi A3 Prestige

Prestige 4dr Sedan (2.0L 4cyl Turbo 7AM)

$25,023
Est. $339/mo
Excellent Deal
$4,727 Below market
RMV: $29,750
Listed On 05 Dec 2022 (57 Days)
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2018 Audi A3 vs. Competitor's City, Highway and Combined MPG and Fuel Range

Car NameMPG CityMPG HighwayMPG CombinedFuel Tank CapacityRange in Miles
2018 Audi A319 - 26 mpg28 - 35 mpg22 - 29 mpg13.2 - 14.5 gal.343.20 / 462.00 - 377.0/507.5 mi.
2018 Audi A421 - 27 mpg30 - 37 mpg24 - 31 mpg15.3 gal.343.2/462.0 - 413.10 / 566.10 mi.
2018 BMW M317 mpg25 mpg20 mpg15.9 gal.344.0/464.4 mi.
2018 BMW ALPINA B716 mpg25 mpg19 mpg20.6 gal.288.0/504.0 mi.
2018 BMW 4 Series Gran Coupe21 - 24 mpg31 - 34 mpg25 - 27 mpg15.8 gal.295.4/422.0 - 363.4/521.4 mi.
2018 BMW 3 Series21 - 24 mpg31 - 35 mpg25 - 28 mpg15.8 gal.331.8/489.8 - 363.4/537.2 mi.
2018 Cadillac ATS19 - 22 mpg27 - 31 mpg22 - 25 mpg16 gal.304.0/432.0 - 352.0/496.0 mi.
2018 Audi S616 mpg24 mpg18 mpg19.8 gal.287.3/439.4 - 316.8/475.2 mi.
2018 Mercedes-Benz C-Class23 - 24 mpg32 - 33 mpg26 - 27 mpg17.4 gal.400.20 / 556.80 - 417.60 / 574.20 mi.
2018 Audi S322 mpg28 mpg24 - 25 mpg14.5 gal.319.0/406.0 - 351.9/428.4 mi.
2018 Audi A714 - 20 mpg24 - 29 mpg17 - 23 mpg19.8 gal.396.0/574.2 - 460.8/729.6 mi.
2018 Infiniti Q5019 - 23 mpg27 - 30 mpg22 - 25 mpg20 gal.380.00 / 540.00 - 460.00 / 600.00 mi.
2018 Jaguar XE20 - 25 mpg29 - 34 mpg24 - 29 mpg16.6 gal.332.00 / 481.40 - 415.00 / 564.40 mi.
2018 Mercedes-Benz CLA-Class24 mpg32 - 37 mpg27 - 29 mpg14.8 gal.355.20 / 473.60 mi.
2018 Lincoln MKZ20 - 21 mpg28 - 31 mpg23 - 24 mpg16.5 - 18 gal.346.50 / 511.50 - 360.00 / 504.00 mi.
2018 Subaru WRX18 - 21 mpg24 - 27 mpg21 - 23 mpg15.9 gal.286.20 / 381.60 - 333.90 / 429.30 mi.
2018 Alfa Romeo Giulia23 - 24 mpg31 - 33 mpg26 - 27 mpg15.3 gal.351.9/474.3 - 370.0/573.5 mi.
2018 Lexus IS 30019 - 22 mpg26 - 32 mpg22 - 26 mpg17.4 gal.330.60 / 452.40 - 382.80 / 556.80 mi.

2017 Audi A3 City, Highway and Combined MPG and Fuel Range

Trim NameMPG CityMPG HighwayMPG CombinedFuel Tank CapacityRange in Miles
Premium 4dr Sedan (2.0L 4cyl Turbo 7AM)
Prestige quattro 4dr Sedan AWD (2.0L 4cyl Turbo 6AM)
Prestige 4dr Sedan (2.0L 4cyl Turbo 7AM)
Premium Plus quattro 4dr Sedan AWD (2.0L 4cyl Turbo 6AM)
Premium Plus 4dr Sedan (2.0L 4cyl Turbo 7AM)
Premium quattro 4dr Sedan AWD (2.0L 4cyl Turbo 6AM)
+4 More
24 mpg35 mpg29 mpg14.5 gal.348.00 / 449.50 mi.

2017 Audi A3 vs. Competitor's City, Highway and Combined MPG and Fuel Range

Car NameMPG CityMPG HighwayMPG CombinedFuel Tank CapacityRange in Miles
2017 Jaguar XE20 - 21 mpg29 - 30 mpg23 - 24 mpg16.6 - 18.5 gal.332.00 / 481.40 - 348.60 / 498.00 mi.
2017 BMW 3 Series21 - 23 mpg31 - 35 mpg25 - 28 mpg15.8 gal.-
2017 Mercedes-Benz C-Class24 mpg31 - 34 mpg27 - 28 mpg17.4 gal.417.60 / 539.40 mi.
2017 Infiniti Q5019 - 23 mpg27 - 31 mpg22 - 26 mpg20 gal.380.00 / 540.00 - 460.00 / 620.00 mi.
2017 Lincoln MKZ20 - 21 mpg28 - 31 mpg23 - 24 mpg16.5 - 18 gal.346.50 / 511.50 - 360.00 / 504.00 mi.
2017 Cadillac ATS19 - 22 mpg27 - 31 mpg22 - 25 mpg16 gal.304.00 / 432.00 - 352.00 / 496.00 mi.
2017 Lexus IS 200t22 mpg32 mpg26 mpg17.4 gal.382.80 / 556.80 mi.
2017 Lincoln MKZ hybrid Sedan41 mpg38 mpg40 mpg14 gal.553.50 / 513.00 mi.
2017 BMW 4 Series Gran Coupe21 - 23 mpg31 - 34 mpg25 - 27 mpg15.8 gal.331.80 / 489.80 mi.
2017 Audi S618 mpg27 mpg21 mpg19.8 gal.356.40 / 534.60 mi.
2017 Audi S321 - 26 mpg28 - 35 mpg24 mpg13.2 - 14.5 gal.304.50 / 406.00 mi.
2017 Audi A715 - 21 mpg21 - 29 mpg18 - 24 mpg19.8 gal.415.80 / 574.20 mi.
2017 Audi A424 - 27 mpg31 - 37 mpg27 - 31 mpg15.3 gal.367.20 / 474.30 - 413.10 / 566.10 mi.
2017 Audi A324 - 26 mpg35 mpg29 mpg13.2 - 14.5 gal.343.20 / 462.00 - 348.00 / 449.50 mi.
2017 Mercedes-Benz CLA-Class23 - 24 mpg32 - 36 mpg27 - 29 mpg14.8 gal.340.40 / 473.60 - 355.20 / 532.80 mi.
2017 Subaru WRX18 - 20 mpg24 - 27 mpg21 - 23 mpg15.9 gal.286.20 / 381.60 - 318.00 / 429.30 mi.
2017 Honda Civic28 - 32 mpg40 - 42 mpg32 - 36 mpg12.4 gal.-
2017 Alfa Romeo Giulia17 - 24 mpg24 - 33 mpg26 - 27 mpg15.3 gal.-
2017 Volvo S6022 - 25 (Est) mpg31 - 37 (Est) mpg26 - 29 mpg17.8 - 18.5 gal.391.60 / 569.60 - 445.00 / 658.60 mi.

2016 Audi A3 City, Highway and Combined MPG and Fuel Range

Trim NameMPG CityMPG HighwayMPG CombinedFuel Tank CapacityRange in Miles
Premium 4dr Sedan (1.8L 4cyl Turbo 6AM)
Premium Plus 4dr Sedan (1.8L 4cyl Turbo 6AM)
Premium quattro 4dr Sedan AWD (2.0L 4cyl Turbo 6AM)
Premium Plus S Line 4dr Sedan (1.8L 4cyl Turbo 6AM)
Premium Plus quattro 4dr Sedan AWD (2.0L 4cyl Turbo 6AM)
Premium Plus S Line quattro 4dr Sedan AWD (2.0L 4cyl Turbo 6AM)
Prestige 4dr Sedan (1.8L 4cyl Turbo 6AM)
Prestige quattro 4dr Sedan AWD (2.0L 4cyl Turbo 6AM)
+6 More
24 mpg33 mpg27 mpg14.5 gal.348.00 / 478.50 mi.

2016 Audi A3 vs. Competitor's City, Highway and Combined MPG and Fuel Range

Car NameMPG CityMPG HighwayMPG CombinedFuel Tank CapacityRange in Miles
2016 Volvo S6018 - 26 mpg27 - 38 mpg21 - 30 mpg17.8 gal.320.40 / 480.60 - 356.00 / 516.20 mi.
2016 Mercedes-Benz CLA-Class24 - 26 mpg33 - 38 mpg27 - 30 mpg13.2 gal.355.20 / 488.40 - 384.80 / 562.40 mi.
2016 Mazda 325 - 30 mpg37 - 41 mpg29 - 34 mpg13.2 gal.330.00 / 488.40 - 396.00 / 541.20 mi.
2016 Volkswagen Jetta23 - 28 mpg33 - 39 mpg27 - 32 mpg14.5 gal.362.50 / 522.00 - 406.00 / 580.00 mi.
2016 Acura ILX25 mpg36 mpg29 mpg13.2 gal.330.00 / 475.20 mi.
2016 Lexus IS 30019 mpg26 mpg21 mpg17.4 gal.330.60 / 452.40 mi.
2016 Audi A321 - 24 mpg33 mpg27 mpg13.2 - 14.5 gal.303.60 / 435.60 - 348.00 / 478.50 mi.
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