2021 Audi A6 AllroadFuel Economy & MPG Ratings

Hybrid Midsize Station WagonsAll-Wheel Drive
2021 Audi A6 Allroad

Photo: OWS Photography. CC BY 4.0. via Wikimedia Commons

City
20
MPG
Highway
26
MPG
Combined
22
MPG

Trim Comparison

Automatic (AM-S7)
Premium Hybrid
City
20
Hwy
26
Comb
22
Fuel cost: $3,700/yr
Annual Fuel Cost
$3,700

Based on gasoline at $3.67/gal, 15,000 miles/year

5-Year Fuel Savings
$-6,500

vs. average new vehicle

EPA Fuel Economy Score: 4/10
GHG Score: 4/10

Environment

CO₂ Tailpipe Emissions
398 g/mile
Annual Petroleum Consumption
13.5 barrels

Specifications

Engine
3L 6-cyl
Transmission
Automatic
Drivetrain
AWD
Body Style
Wagon

Source: EPA fuel economy data & NHTSA vPIC. Specifications reflect the most common trim configuration.

Engine & Efficiency Details

Source: EPA fueleconomy.gov

Engine Size
3L, 6-cylinder
Induction Type
SIDI; Mild Hybrid
Efficiency Tech
Auto Start-Stop
Fuel Type
Premium Gasoline

Annual Fuel Cost by State

Prices as of week ending May 18, 2026 · Source: EIA

National AvgEPA default
$4.490/gal$3,061/yr
California
$5.957/gal$4,062/yr
Texas
$3.888/gal$2,651/yr
Florida
$4.136/gal$2,820/yr
New York
$4.522/gal$3,083/yr
Ohio
$4.510/gal$3,075/yr
Washington
$5.591/gal$3,812/yr
Colorado
$4.618/gal$3,149/yr
Minnesota
$4.344/gal$2,962/yr
Massachusetts
$4.448/gal$3,033/yr

Calculated at 15,000 miles/year (EPA standard assumption) using 22 MPG combined. Regular gasoline prices. Actual costs vary.

Recall History

Source: NHTSA

No recalls reported for this vehicle.

Owner-Reported Problems24 complaints

Source: NHTSA

NHTSA has received 24 owner complaints for the 2021 Audi A6 Allroad. Top reported issues include electrical system, advanced safety (adas) and engine. The data below is sourced from consumer complaints filed directly with NHTSA.

Problems by System / Component

Electrical System
13
Advanced Safety (ADAS)
4
Engine
4
Power Train
3
Structure
2
Fuel System
2
Steering
1

2021 Audi A6 Allroad problems by category: Electrical System: 13 complaints, Advanced Safety (ADAS): 4 complaints, Engine: 4 complaints, Power Train: 3 complaints, Structure: 2 complaints, Fuel System: 2 complaints, Steering: 1 complaints.

Sample Owner Complaints

EngineFiled: 05/11/2026ODI#11736958
The contact owns a 2021 Audi A6. The contact stated while driving at an undisclosed speed, the vehicle overheated. The engine overheating and the low coolant warning light illuminated. In addition, th…
Advanced Safety (ADAS)Filed: 12/01/2025ODI#11702177
The car has traffic sign recognition and uses it for "predictive control" where the vehicle will read traffic signs and adjust the adaptive cruise control setting to based on road signs. It had previo…
SteeringFiled: 09/09/2023ODI#11543607
Car reported an engine restarter issue (with battery symbol) and recommended to contact the dealer. Car next shut down automatic restart system, and air conditioning stopped working. Within a short pe…

Complaint data is sourced from the NHTSA Complaints Database. Reports are filed by vehicle owners and may not reflect confirmed defects. Last updated via NHTSA API.

Related

Audi A6 Allroad MPG History
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