Audi · 2021
A5 quattro 2.0L 4-cyl
✓ EPA Verified
Premium Gasoline
Subcompact Cars
All-Wheel Drive
City
24
MPG
Combined
27
MPG
Highway
31
MPG
Annual Fuel Cost
$2,150
Based on 15,000 miles/year · EPA estimates
Class Comparison — Subcompact Cars
Top 24%
Better than 76 out of 100 vehicles in its class for fuel efficiency.
This vehicle: 27 MPG
This vehicle
27 MPG
Class average
27 MPG
Class lowest
12 MPG
EPA Energy & Environment Scores
6
Energy Score
Out of 10
6
GHG Score
Out of 10
331 lbs
Annual CO₂
g/mile tailpipe CO₂
Yes
Start-Stop
Auto stop-start
Vehicle Specifications
Engine2.0L 4-cyl
TransmissionAutomatic (AM-S7)
DriveAll-Wheel Drive
Fuel TypePremium Gasoline
Vehicle ClassSubcompact Cars
TrimHybrid
Engine DescSIDI; Mild Hybrid
Start-StopYes
EPA Vehicle ID43228

27 MPG combined is a respectable figure for the 2021 Audi A5 quattro 2.0L 4-cyl, especially when you consider this car: a stylish, sharply-creased coupe (or Sportback) that prioritizes driving engagement and all-weather confidence over saving gas. This isn’t a vehicle purchased solely for its fuel efficiency; it’s bought for its blend of luxury, performance, and distinctive design. Therefore, the A5’s fuel consumption is generally an accepted trade-off for its other qualities. The A5’s audience, consisting of younger professionals and style-conscious individuals, appreciate a refined driving experience and are less concerned about squeezing out every last mile per gallon.

City and highway performance

The A5 2.0T quattro’s EPA ratings break down into 24 MPG in the city and 31 MPG on the highway. This reflects the nature of its engine and transmission. The 2.0-liter turbocharged four-cylinder, while capable, works harder in stop-and-go city driving, which results in a lower MPG figure. The start-stop system helps reduce fuel wastage at standstill, further explaining how the 2.0L quattro can achieve the 24 MPG city rating. Conversely, the 7-speed S tronic dual-clutch automatic transmission shines on the open road, where it can settle into higher gears and maintain a lower engine RPM for increased efficiency. The fuel-sipping 31 MPG on the highway is where owners will see the highest return, especially on longer commutes or road trips. Quattro all-wheel drive also contributes to the slightly lower highway figure compared to front-wheel-drive counterparts, as it adds weight and drivetrain friction.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2021 Audi A5 quattro 2.0L at exactly $2,150. This figure is based on driving 15,000 miles per year and using national average fuel prices. It’s important to remember that this is only an estimate, your actual fuel costs will vary depending on your driving habits, the type of roads you typically drive on, and local fuel prices. Spirited driving or consistently being stuck in heavy traffic will significantly increase that number. However, the $2,150 provides a good baseline for budgeting and comparing the A5’s fuel expenses to other vehicles in its class. All factors considered, it’s a reasonable cost for a vehicle offering luxury and all-weather stability.

Real-world expectations

While the EPA figures provide a standardized measure, real-world fuel economy inevitably varies. Expect to see figures close to the EPA estimates under normal driving conditions, but deviations can occur. Aggressive acceleration, frequent short trips, and prolonged idling can all decrease fuel efficiency. Similarly, maintaining a steady speed on the highway and anticipating traffic conditions can improve your mileage. Many A5 owners report slightly better highway mileage than the EPA estimate on long trips if they drive conservatively. Monitoring your trip computer and making conscious efforts to optimize your driving habits can help you achieve or even exceed the EPA estimates in real-world scenarios.

How it compares

The A5’s fuel economy stacks up competitively within its segment. For example, the BMW 430i xDrive coupe, a direct rival, achieves a similar 27 MPG combined. However, a Mercedes-Benz C300 4MATIC coupe gets slightly better fuel economy at 28 MPG combined. The Acura TLX SH-AWD offers a slightly lower 24 MPG combined. These differences, while seeming small, can add up over time. The buyer considering the A5 is likely cross-shopping these models, and fuel economy, while not the main deciding factor, contributes to the overall evaluation. These buyers will also want to compare A5 MPG across all years to see if there are any other model years that better suit their needs.

Tips to maximize efficiency

Take advantage of the Audi Drive Select system. Choosing the “Efficiency” mode optimizes various vehicle settings, such as throttle response and shift points, to prioritize fuel conservation. It can noticeably reduce fuel consumption, especially in daily driving when maximum performance is not required. The system encourages the driver to maintain a steady pace and avoid unnecessary acceleration.

Monitor your tire pressure regularly. Underinflated tires increase rolling resistance, which negatively impacts fuel economy. Consult the sticker on the driver’s side doorjamb for the recommended tire pressure. Maintaining the correct tire pressure not only improves fuel efficiency but also enhances handling and extends tire life. A simple check every few weeks can make a difference.

Use cruise control on the highway whenever possible. Maintaining a constant speed minimizes unnecessary acceleration and deceleration, resulting in consistent fuel consumption. Cruise control is especially beneficial on long, flat stretches of highway where speed variations are minimal. This is specifically beneficial for quattro models because variations in wheel speed can adversely affect the quattro AWD system.

Avoid carrying unnecessary weight in the vehicle. Extra weight increases the engine’s workload and reduces fuel efficiency. Remove any unnecessary items from the trunk or backseat. Minimizing the vehicle’s load can have a surprising impact on fuel economy, especially in city driving. This is the easiest way to achieve better fuel economy from all Audi fuel economy data.