2021 Audi A6
The Verdict
Worst problem area
Electrical
Electrical leads by volume: 10 of 16 complaints (63%) mention it.
Complaints filed fell from 25 in 2020 to 16 in 2021.
Data last changed . Sources: NHTSA complaints and recalls, EPA fuel economy data. Methodology
Cost, Fuel Economy & Complaint History
| Category | 2019 | 2020 | 2021 | 2022 | 2023 | vs. 2021 Midsize Cars |
|---|---|---|---|---|---|---|
| Annual fuel cost ($) | 2,850–3,100 | 2,850–3,500 | 3,000–3,500 | 3,000–3,350 | 2,850–3,250 | |
| Combined MPG | 25–27 | 22–27 | 22–26 | 23–26 | 24–27 | |
| City / Highway MPG | 22–24 / 29–32 | 20–24 / 26–32 | 20–23 / 26–31 | 21–23 / 28–32 | 21–24 / 30–31 | |
| CO₂ tailpipe (g/mi) | 329–360 | 329–398 | 341–398 | 335–377 | 334–361 | |
| Complaints filed | 114 | 25 | 16 | 2 | 2 | |
| Recalls issued | 7 | 9 | 11 | 5 | 1 | |
| Crash-involved complaints | 2 | 0 | 0 | 0 | 0 | |
| Fire-involved complaints | 1 | 0 | 0 | 0 | 0 | |
| Injuries reported | 2 | 0 | 0 | 0 | 0 | |
| Deaths reported | 0 | 0 | 0 | 0 | 0 | |
| Configurations compared | 2 | 2 | 2 | 2 | 2 |
Not compared: this database has no vehicle sales or registration figures, so a raw count mostly reflects how many were sold, not how safe the vehicle is.
Common questions
How many recalls does the 2021 Audi A6 have?
11 NHTSA recall campaigns as of Sep 16, 2026. Check your VIN with NHTSA to see whether one applies to your car.
What is the most common complaint about the 2021 Audi A6?
Electrical: 10 of 16 NHTSA complaints (63%) mention it.
What gas mileage does the 2021 Audi A6 get?
EPA rates it 22–26 MPG combined.
How much does it cost to fuel a 2021 Audi A6?
EPA estimates $3,000–$3,500 a year in fuel costs, using EPA's assumptions.
Similar Vehicles
EPA-Rated Configurations (3)
| Configuration | Transmission | Cylinders | Displacement | Drivetrain | Fuel Type | Vehicle Class | City | Highway | Combined | Annual Fuel Cost | CO₂ |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Configuration 1 | Automatic (AM-S7) | 6 | 3.0L | All-Wheel Drive | Premium | Midsize Cars | 22 mpg | 29 mpg | 24 mpg | $3,250 | 364 g/mi |
| Configuration 2 | Automatic (AM-S7) | 6 | 3.0L | All-Wheel Drive | Premium | Midsize Station Wagons | 20 mpg (low) | 26 mpg (low) | 22 mpg (low) | $3,500 (high) | 398 g/mi (high) |
| Configuration 3 | Automatic (AM-S7) | 4 | 2.0L | All-Wheel Drive | Premium | Midsize Cars | 23 mpg (high) | 31 mpg (high) | 26 mpg (high) | $3,000 (low) | 341 g/mi (low) |
Complaints by Category
| Category | Complaints | Crash-Involved | Fire-Involved | Injuries | Deaths |
|---|---|---|---|---|---|
| Engine | 3 | 0 | 0 | 0 | 0 |
| Transmission & Drivetrain | 2 | 0 | 0 | 0 | 0 |
| Fuel System | 0 | 0 | 0 | 0 | 0 |
| Electrical | 10 | 0 | 0 | 0 | 0 |
| Brakes | 0 | 0 | 0 | 0 | 0 |
| Steering | 1 | 0 | 0 | 0 | 0 |
| Suspension, Wheels & Tires | 0 | 0 | 0 | 0 | 0 |
| Airbags & Restraints | 0 | 0 | 0 | 0 | 0 |
| Driver Assistance & Speed Control | 2 | 0 | 0 | 0 | 0 |
| Body, Seats & Latches | 1 | 0 | 0 | 0 | 0 |
| Visibility & Lighting | 0 | 0 | 0 | 0 | 0 |
| Other | 2 | 0 | 0 | 0 | 0 |
A complaint that names more than one category is counted in each, so the rows can add up to more than the total number of complaints.
Recalls (11)
BACK OVER PREVENTION: SENSING SYSTEM: CAMERA · Campaign 25V900000 · Dec 22, 2025
Defect: Volkswagen Group of America, Inc. (Audi) is recalling certain 2019-2026 vehicles. Please see the recall report for a complete list of models. A software error may prevent the rearview camera image from displaying as intended. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."
Consequence: A rearview image that does not display reduces the driver's view behind the vehicle, increasing the risk of a crash.
Remedy: Dealers will update the software, free of charge. Owner notification letters were mailed January 14, 2026. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 90TV. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on December 23, 2025.
ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; ELECTRICAL SYSTEM:SOFTWARE · Campaign 25V201000 · Apr 1, 2025
Defect: Volkswagen Group of America, Inc. (Audi) is recalling certain 2021 SQ8, A6 SEDAN, A7, A8, Q7, Q8, RS6 Avant, RS7, RSQ8, S6 SEDAN, S7, S8, A6 Allroad, and SQ7 vehicles. Due to a software error, the instrument panel display may fail.
Consequence: An instrument panel display that fails to show critical safety information, such as the speedometer or warning lights, increases the risk of a crash.
Remedy: Dealers will update the instrument panel module software, free of charge. Owner notification letters were mailed April 24, 2025. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 90VC.
SERVICE BRAKES, HYDRAULIC:FLUID · Campaign 23V601000 · Aug 28, 2023
Defect: Volkswagen Group of America, Inc. (Audi) is recalling certain 2021 Audi S7, S6 Sedan, RS7, RS6 Avant, A6 Allroad, 2019-2021 A7, and A6 Sedan vehicles. An incorrectly labeled brake fluid cap may have been installed, which can result in the use of the wrong type of brake fluid.
Consequence: Incorrect brake fluid can reduce braking ability and increase the risk of a crash.
Remedy: Dealers will inspect the brake fluid reservoir cap and, if necessary, replace it, free of charge. Owner notification letters are expected to be mailed October 17, 2023. Owners may contact Audi's customer service at 1-800-253-2834. Volkswagen's number for this recall is 47T9.
ELECTRICAL SYSTEM · Campaign 22V861000 · Nov 22, 2022
Defect: Volkswagen Group of America, Inc. (Audi) is recalling certain 2020-2022 Audi S7, S6 Sedan, A6 Allroad, 2021-2022 RS7, RS6 Avant, 2019-2022 A7, and A6 Sedan vehicles. Liquid spilled in the rear seat may penetrate and cause the gateway control module to shut down.
Consequence: A gateway control module shutdown will suddenly reduce engine power, increasing the risk of a crash.
Remedy: Dealers will install a protective cover, free of charge. Owner notification letters are expected to be mailed January 20, 2023. Owners may contact Audi's customer service at 1-800-253-2834. Audi's number for this recall is 90V2.
BACK OVER PREVENTION:DISPLAY FUNCTION · Campaign 22V742000 · Oct 6, 2022
Defect: Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2021 Audi A8, RS7, RS6 Avant, RS5 Sportback, RS5 Coupe, Q8, Q7, Q5 Sportback, S4 Sedan, Q5, A7, A6, A6 Allroad, A5 Sportback, A5 Coupe, A5 Cabrioleet, A4 Sedan, A4 Allroad, E-Tron Sportback Quattro, SQ7, S5 Cabriolet, E-Tron Quattro, SQ8, SQ5 Sportback, SQ5, S8, S7, S6 Sedan, S5 Sportback, S5 Coupe, 2022 E-Tron GT, and 2021-2022 RSQ8 vehicles. Due to a software issue, a blank or black screen may be displayed instead of the rearview camera image when the vehicle is placed in reverse gear. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."
Consequence: A blank rearview camera display can reduce the driver's rear visibility, increasing the risk of a crash.
Remedy: Dealers will update the infotainment unit software, free of charge. Owner notification letters were mailed October 25, 2022. Owners may contact Audi's customer service at 1-800-253-2834. Volkswagen's number for this recall is 91DZ.
ELECTRICAL SYSTEM:INSTRUMENT PANEL:FUEL GAUGE:FUEL LEVEL FLOAT/SENSOR/SENDING UNIT · Campaign 22V155000 · Mar 15, 2022
Defect: Volkswagen Group of America, Inc. (Audi) is recalling certain 2021-2022 RS6 Avant and RS7, 2020-2022 A6 Allroad, S6 Sedan, and S7, and 2019-2022 A6 Sedan and A7 vehicles. The fuel level sender may stick, causing an inaccurate fuel level reading to be displayed on the instrument cluster.
Consequence: An inaccurate fuel reading may cause an engine stall due to lack of fuel, increasing the risk of a crash.
Remedy: Dealers will install a new sensor in the tank, free of charge. Owner notification letters were mailed February 17, 2023. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 20DN.
SUSPENSION:REAR:AXLE:NON-POWERED AXLE ASSEMBLY; TIRES · Campaign 22V034000 · Jan 27, 2022
Defect: Volkswagen Group of America, Inc. (Audi) is recalling certain 2019-2021 Audi A5 Sportback, RS5 Coupe, RS5 Sportback, S5 Sportback, 2020-2021 A4 Allroad, A4 Sedan, A5 Cabriolet, A5 Coupe, A6 Allroad, A6 Sedan, A7, A8, Q5, S4 Sedan, S5 Coupe, S5 Cabriolet, S6 Sedan, S7, S8, SQ5, 2021 Q5 Sportback, Q7, Q8, RS6 Avant, RS7, RSQ8, SQ5 Sportback, SQ7, and SQ8 vehicles. The rear axle alignment may not have been inspected after the repairs for Recall 21V-295 (42L1) were performed.
Consequence: Rear axle misalignment may cause premature or uneven tire wear, increasing the risk of a crash.
Remedy: Dealers will inspect the rear axle, adjust the alignment as necessary, and replace any prematurely or unevenly worn tires, free of charge. Owner notification letters were mailed March 3, 2022. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 42L5.
SEAT BELTS; SEAT BELTS:REAR/OTHER:RETRACTOR · Campaign 21V606000 · Aug 5, 2021
Defect: Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2021 Volkswagen ID4, Audi A4 Allroad, A4 Sedan, A5 Cabriolet, A5 Coupe, A5 Sportback, A6 Allroad, A6 Sedan, A7, A8, E-Tron Quattro, E-Tron Sportback Quattro, Q3, Q5, Q5 Sportback, Q7, Q8, RS5 Sportback, RS5 Coupe, RS6 Avant, RS7, RSQ8, S4 Sedan, S5 Cabriolet, S5 Coupe, S5 Sportback, S6 Sedan, S7, S8, SQ5, SQ5 Sportback, SQ7, SQ8, and 2021-2022 S3 Sedan vehicles. The rear seat belt automatic locking retractors may deactivate early, which can prevent the child restraint system from securing properly. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."
Consequence: An unsecured child restraint system can increase the risk of injury during a crash.
Remedy: Dealers will inspect, and replace as necessary, the middle-rear seat belt assemblies, free of charge. Owner notification letters were mailed August 27, 2021. Owners may contact Volkswagen customer service at 1-800-893-5298 and Audi customer service at 1-800-253-2834. Volkswagen's numbers for this recall are 69CR (VW) and 69CS (Audi).
SUSPENSION:REAR:AXLE:NON-POWERED AXLE ASSEMBLY · Campaign 21V295000 · Apr 27, 2021
Defect: Volkswagen Group of America, Inc. (Audi) is recalling certain 2021 Q7, Q8, Q5 Sportback, SQ5 Sportback, RS6 Avant, RS7, RS Q8, 2020-2021 Audi S6 sedan, Q5, A8, S8, A7, A6 Allroad, A5 Cabriolet, A4 sedan, A4 Allroad, SQ5, S7, A6 sedan, S5 coupe, S4 sedan, S5 Cabriolet, A5 coupe, 2019-2021 RS5 coupe, A5 Sportback, S5 Sportback, RS5 Sportback vehicles. The lock nut on the trailing arm of the rear axle may break due to stress corrosion.
Consequence: A broken lock nut may misalign the rear axle, causing a loss of control and increasing the risk of a crash.
Remedy: Dealers will replace the lock nuts and, if necessary, the associated bolts, free of charge. Owner notification letters were mailed June 4, 2021. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 42L1.
AIR BAGS · Campaign 21V159000 · Mar 11, 2021
Defect: Volkswagen Group of America, Inc. (Audi) is recalling certain 2021 Audi RS6 Avant, RS7, 2020-2021 A6 Allroad, S6 Sedan, S7, 2019-2021 A6 Sedan, and A7 vehicles. The score line on the passenger air bag may not have been manufactured correctly.
Consequence: An incorrectly manufactured air bag may not deploy properly, and could also eject plastic debris into the passenger compartment, increasing the risk of injury during a crash.
Remedy: Audi will notify owners, and dealers will inspect the passenger air bag score line, and repair it as necessary, free of charge. The recall begin March 26, 2021. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 70i2.
Show 1 earlier campaign
ELECTRICAL SYSTEM; AIR BAGS:SENSOR:SIDE IMPACT · Campaign 20V749000 · Dec 3, 2020
Defect: Volkswagen Group of America, Inc. (Audi) is recalling certain 2021 Audi A6 Allroad, Q7, RS6 and RS7 vehicles. The electrical connector can detach from the door crash sensor in either of the front doors.
Consequence: A detached connector can delay the activation of the restraint systems, including the side air bag, curtain air bag and/or seat-belt pretensioners during a side impact crash, increasing the risk of injury.
Remedy: Audi will notify owners, and dealers will inspect, and as necessary, replace the crash sensors in both front doors, free of charge. The recall began December 23, 2020. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 69BM.