2018 Audi A3
Fuel Economy Overview
The 2018 Audi A3 achieves an EPA-estimated 29 MPG in combined city and highway driving, with 26 MPG in the city and 35 MPG on the highway. Powered by a 2L 4-cylinder turbocharged engine paired with a automatic (am-s7), this subcompact cars features Front-Wheel Drive drive.
In terms of environmental impact, the 2018 A3 produces approximately 303 grams of CO2 per mile. This figure is measured under standardized EPA test conditions and represents tailpipe emissions only. For context, the average new vehicle sold in the United States produces approximately 400 grams of CO2 per mile, meaning this A3 performs better than the national average in this regard.
The estimated annual fuel cost for this vehicle is $2,050, based on 15,000 miles of driving per year and current national average fuel prices. Compared to the average new vehicle, you would spend $500 over a 5-year period. This calculation accounts for differences in fuel consumption efficiency and provides a practical measure of long-term ownership costs attributable to fuel economy.
Energy DNA
Green Scorecard
Personalized Commute CalculatorEPA defaults to 55% City / 45% Hwy
Adjust the slider to match your daily driving habits. City driving involves stop-and-go traffic under 45mph, while highway driving represents sustained speeds over 55mph.
Aerodynamic Speed Penalty
EPA highway tests average roughly 48 mph. Driving at 75 mph increases aerodynamic drag exponentially. Expect your real-world highway fuel economy to drop by roughly 15-20% at interstate speeds.
5-Year Total Cost of Ownership
Recall Intelligence
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.
Consequence & Remedy
Consequence: 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.
Volkswagen Group of America, Inc. (Audi) is recalling certain 2015-2020 Audi S3 Sedan, A3 Sedan, 2016-2018 A3 Etron, 2017-2020 RS3 Sedan, and 2015-2019 A3 Cabriolet vehicles. The passenger occupant detection system (PODS) may malfunction and switch off the passenger air bag even when the seat is occupied.
Consequence & Remedy
Consequence: A deactivated passenger air bag increases the risk of injury during a crash.
Remedy: Dealers will replace the PODS sensor mat and update the PODS control module, free of charge. Owners letters were mailed December 23, 2021. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 69BY.
Volkswagen Group of America, Inc. (Audi) is recalling certain 2015-2016 Audi S3 Sedan, 2015-2019 A3 Sedan and A3 Cabriolet, 2016-2018 A3 e-tron, and 2017-2019 RS3 vehicles. An improper electrical contact may cause the Passenger Occupant Detection System (PODS) to falsely detect a malfunction and deactivate the passenger air bag.
Consequence & Remedy
Consequence: A deactivated passenger air bag increases the risk of injury during a crash.
Remedy: Audi will notify owners, and dealers will replace the connector and reroute the cable, free of charge. The recall began September 12, 2019. Owners may contact Volkswagen customer service at 1-800-253-2834. Audi's number for this recall is 69Z4.
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2018 Audi A3 sedan and RS3 vehicles. The latching pins for the center rear seat head restraint may be missing.
Consequence & Remedy
Consequence: In the event of a crash, the head restraint may detach and cause injury to the vehicle occupants.
Remedy: Audi has notified owners, and dealers will inspect the head restraints, replacing any that are missing pins, free of charge. The recall began on March 7, 2019. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 72I8.
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2018 Audi TT Roadster, TT Coupe, A3 Sedan and A3 Cabriolet vehicles. The fuel hose quick connector may detach from the fuel supply line in the engine bay, resulting in a fuel leak.
Consequence & Remedy
Consequence: A fuel leak in the engine compartment can increase the risk of a fire.
Remedy: Volkswagen will notify owners, and dealers will secure the fuel line connection, as necessary, free of charge. The recall began January 11, 2019. Owners may contact Audi customer service at 1-800-253-2834. Volkswagen's number for this recall is 20BK.
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2018 Volkswagen e-Golf and Golf R vehicles, and Audi A3 Sedan and RS3 vehicles. The rear seat frame head restraint guide sleeves may be incorrectly welded to the seat frame.
Consequence & Remedy
Consequence: If the guide sleeves are incorrectly welded, in the event of a crash, the rear seat head restraints may have reduced stability, increasing the risk of injury.
Remedy: Volkswagen and Audi will notify their owners, and dealers will inspect the guide sleeves for incorrect welds, replacing the rear seat frame, as necessary, free of charge. The recall began December 28, 2018. 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 72H8 (VW) and 72H9(Audi).
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2017-2018 Audi A3 Cabriolet and A3 Sedan vehicles. The Engine Control Unit (ECU) software may misinterpret the flywheel rotation on engine start-up as a "knocking" condition, and the adjusted air/fuel mixture may result in an engine stall.
Consequence & Remedy
Consequence: An engine stall can increase the risk of a crash.
Remedy: Audi will notify owners, and dealers will reprogram the ECU software, free of charge. The recall began September 19, 2017. Owners may contact Audi customer service at 1-800-253-2834. Volkswagen's number for this recall is 24DF.
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Looking for comprehensive historical data?
NHTSA FARS (Fatal Crash History) and broader generational safety trends are aggregated at the model level rather than by specific engine configurations. View the complete historical data profile for all Audi A3 configurations.
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Fuel Cost Analysis
Based on 15,000 miles/year and current fuel prices.
Efficiency Breakdown
Estimated Lifetime Carbon Footprint
(Based on 200,000 miles driven)