Reliable Auto DB

2021 Audi A6 allroad reliability

Is it reliable?

The 2021 Audi A6 allroad has 9 complaints with NHTSA after 6 years, or 2 per year. That is the most complaints per year among the 5 A6 allroad years on this site. NHTSA has 8 recalls on file, including Camera, Instrument cluster, and Hydraulic brakes, fluid.

2020 Audi A6 allroad
Photo by Calreyn88, resized from the original. Wikimedia Commons CC BY-SA 4.0
Complaints

9

Per year

2

Recalls

8

Years on the road

6

What owners report

The complaints owners file most often name Electrical system (4 of 9), then Forward collision avoidance (2) and Fuel and propulsion system (2).

Next to 2020 and 2022

The 2020 A6 allroad has 8 complaints, 0 per year, and the 2022 has 0 complaints, 0 per year. The 2021 has more complaints per year than the 2020. The 2021 has more complaints per year than the 2022.

The complaint rate is complaints filed in this year’s first 3 years on the road, divided by however many of those years have passed. Recalls are a separate count. The numbers are for the US-market 2021 Audi A6 allroad. How we count. Data as of .

Recalls (8)

Recall back-over prevention, sensing system, camera 2025-12-19 · NHTSA campaign 25V900000
Summary 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."
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.
Recall electrical system, instrument cluster 2025-03-31 · NHTSA campaign 25V201000
Summary 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.
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.
Recall hydraulic brakes, fluid 2023-08-25 · NHTSA campaign 23V601000
Summary 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.
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.
Recall Electrical system 2022-11-21 · NHTSA campaign 22V861000
Summary 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.
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.
Recall equipment, electrical, infotainment, touchscreen 2022-10-26 · NHTSA campaign 22V806000
Summary Volkswagen Group of America, Inc. (Audi) is recalling certain 2021-2022 AUDI A8, A6 Allroad, E-TRON Quattro, 2022 S3, RSQ8, RS7, RS6 Avant, Q8, Q7, Q3, E-TRON Sportback Quattro, S5 Cabriolet, E-TRON GT, S5 Sportback, A7, A6, A5 Sportback, A5 Cabriolet, A4, A4 Allroad, A3, S8, SQ7, SQ8, S6, and S4 vehicles. The infotainment main unit may become damaged internally when the vehicle is shut off, resulting in an inoperative rearview camera display the next time the vehicle is started. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."
Remedy Dealers will replace the infotainment main unit, free of charge. Owner notification letters were mailed June 6, 2022. Owners may contact Audi's customer service at 1-800-253-2834. Audi's number for this recall is 91Ei.
Recall Tires 2022-01-26 · NHTSA campaign 22V034000
Summary 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.
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.
Recall seat belts, rear or other, retractor 2021-08-05 · NHTSA campaign 21V606000
Summary 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."
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).
Recall Air bags 2021-03-10 · NHTSA campaign 21V159000
Summary 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.
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.

Complaints by component (9 total)

Electrical system
4
Forward collision avoidance
2
Fuel and propulsion system
2
Engine
1
Powertrain
1
Structure
1
Crash-flagged

0

Fire-flagged

0

Injury reports

0

Death reports

0

Complaints filed per year

1202132022220232202512026
Excerpts from recent NHTSA complaint filings
  • "My vehicle was excluded from Recall 25V20100/90VC; however, in early March 2025, it experienced the exact defect described in that recall: a complete failure of the instrument panel module. I paid $3,737.07 for the…"
    Electrical system · filed 2026-02-26
  • "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 previously been working…"
    Forward collision avoidance · filed 2025-12-01
  • "The Virtual Cockpit of the car (electronic screen right in front of the driver that displays speed, etc.) randomly turns off during driving, reboots, and displays an error message "Instrument Cluster Malfunction". A…"
    Electrical system · filed 2025-06-27
  • "Notice of electronic failure on dash, then car notified me to pull over safely due to the failure after 20 min of driving. Car stopped shifting gears and electronic power steering failed while the vehicle was moving.…"
    Electrical system · filed 2023-10-10
  • "At a highway speed of 50 MPH the transmission completely disengaged. I was driving on a busy highway with no shoulder. The vehicle continued to coast until I was forced to stop in an unsafe location. I placed the car in…"
    Powertrain, Engine · filed 2023-05-19

NHTSA crash ratings

Version Overall Front Side Rollover
2021 Audi A6 allroad SW AWD 5 stars 4 stars 5 stars 5 stars

Stars are how this vehicle did in NHTSA crash tests. They are a safety result, separate from the complaint record. Not rated means that test was not run for this version.

Specs and fitment

C8 allroad, 2020–present
Body styles Allroad
Oil 0W-20 , 8 qt capacity
Tire size 245/45R19, 245/45R20, 255/40R20 (trim-dependent)

Known issues for this generation

Recall 21V159000 covers certain 2020-2021 A6 Allroad models (with RS6 Avant, RS7, S6, and S7) for an air bag concern as stated in NHTSA's summary. Recall 22V861000 covers certain 2020-2022 A6 Allroad models (with S6, S7, RS6, and RS7) for an electrical system concern. Recall 25V900000 covers certain 2019-2026 Audi models including A6 Allroad where rearview camera software may prevent the image from displaying.

Compare

Previous year 2020 Audi A6 allroad See every Audi A6 allroad model year →

Frequently asked questions

Is the 2021 Audi A6 allroad reliable?

The 2021 Audi A6 allroad has 9 complaints with NHTSA after 6 years, or 2 per year. That is the most complaints per year among the 5 A6 allroad years on this site. NHTSA has 8 recalls on file, including Camera, Instrument cluster, and Hydraulic brakes, fluid.

What are common problems with a 2021 Audi A6 allroad?

The complaints owners file most often name Electrical system (4 of 9), then Forward collision avoidance (2) and Fuel and propulsion system (2).

Is the 2021 Audi A6 allroad more reliable than the years next to it?

The 2020 A6 allroad has 8 complaints, 0 per year, and the 2022 has 0 complaints, 0 per year. The 2021 has more complaints per year than the 2020. The 2021 has more complaints per year than the 2022.

Has the 2021 Audi A6 allroad been recalled?

The 2021 Audi A6 allroad has 8 recalls on file with NHTSA. See the recalls table on this page for dates, components, and remedies.

How many complaints have owners filed about the 2021 Audi A6 allroad?

Owners have filed 9 complaints about the 2021 Audi A6 allroad with NHTSA.

What engine oil does a US Audi A6 allroad use?

0W-20 With filter, about 8 qt is commonly listed for this generation—confirm in the owner manual.

What tire sizes fit a US Audi A6 allroad?

Published US specs commonly list front 245/45R19, 245/45R20, 255/40R20 (trim-dependent) and rear 245/45R19, 245/45R20, 255/40R20 (trim-dependent); confirm on the door jamb placard for your trim.

What NHTSA recalls affect the US Audi A6 allroad?

Recall 21V159000 covers certain 2020-2021 A6 Allroad models (with RS6 Avant, RS7, S6, and S7) for an air bag concern as stated in NHTSA's summary. Recall 22V861000 covers certain 2020-2022 A6 Allroad models (with S6, S7, RS6, and RS7) for an electrical system concern. Recall 25V900000 covers certain 2019-2026 Audi models including A6 Allroad where rearview camera software may prevent the image from displaying.