2023 Audi A6 Problems: 3 Known Issues

2023 Audi A6 Problems: 3 Known Issues | Au7o

NHTSA Recalls14 recalls

SEAT BELTS:REAR/OTHER:RETRACTOR

Volkswagen Group of America, Inc. (Audi) is recalling certain 2025 SQ6 E-Tron, SQ6 Sportback E-Tron, Q6 Sportback E-Tron, A6, A5, A6 Sportback E-Tron, Q6 E-Tron, S5, and S6 Sportback E-Tron vehicles. The automatic locking retractor may fail to engage when a child seat is installed using the seat belt. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) numbers 208, "Occupant Crash Protection" and 209, "Seat Belt Assemblies."

Campaign #25V89900019/12/2025

BACK OVER PREVENTION: SENSING SYSTEM: CAMERA

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."

Campaign #25V90000019/12/2025

SEAT BELTS:REAR/OTHER:RETRACTOR

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."

Campaign #21V60600005/08/2021

TIRES

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.

Campaign #22V03400026/01/2022

AIR BAGS

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.

Campaign #21V15900010/03/2021

+ 9 more recalls. Check all on NHTSA.gov

Enter your VIN at NHTSA.gov to check recalls specific to your vehicle.

Frequently Asked Questions

What are the most common Audi A6 problems?

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2023 Audi A6 has 3 documented issues. The most frequently reported are: 48V Belt Starter-Generator Warning and VIN-Specific Campaigns, Water Pump and Thermostat Failure (Overheating), Electrical Issues (Window Regulators, Door Locks, MMI). Of these, 1 is rated critical and should be addressed promptly.

Is the Audi A6 reliable?

The 2023 Audi A6 has 3 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 1 issue is rated critical: 48V Belt Starter-Generator Warning and VIN-Specific Campaigns. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common Audi A6 problems?

Repair costs for known Audi A6 issues range from $100 to $2,500, depending on the specific problem and whether you choose DIY or professional repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What is the 2019-2025 Audi A6 48V Belt Starter-Generator Warning and VIN-Specific Campaigns?

A 48V electrical-system warning on a mild-hybrid A6 is not repaired with an ordinary 12V battery, charger, alternator, or starter. Certain 2019-2020 2.0T mild-hybrid vehicles are covered by safety recall 27H2 or 20V-153 for moisture intrusion into the belt starter generator, whic… Severity: high.

What is the 2005-2023 Audi A6 Water Pump and Thermostat Failure (Overheating)?

Water pump failures are common across all A6 generations due to plastic impeller degradation and seal leaks. Audi uses plastic impellers that crack or disintegrate over time (typically 80,000-120,000 miles), causing coolant leaks and overheating. The water pump is often driven by… Repairs typically run $800-$1,500. Severity: medium.

What is the 2005-2023 Audi A6 Electrical Issues (Window Regulators, Door Locks, MMI)?

The Audi A6 is prone to various electrical gremlins across all generations, including window regulator failures, door lock actuator failures, MMI/infotainment glitches, and battery drain issues. Window regulators fail due to weak plastic clips in the mechanism, causing windows to… Repairs typically run $100-$2,500. Severity: low.

2023 Audi A6 Problems: 3 Known Issues

All 3 Known Issues

2019-2025 Audi A6: 48V Belt Starter-Generator Warning and VIN-Specific Campaigns#

Common Symptoms

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What you need to fix it

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2005-2023 Audi A6: Electrical Issues (Window Regulators, Door Locks, MMI)#

Common Symptoms

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2005-2023 Audi A6: Water Pump and Thermostat Failure (Overheating)#

Common Symptoms

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What you need to fix it

Owner tips & cautions

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Other Audi Models

Frequently Asked Questions

What are the most common Audi A6 problems?

Is the Audi A6 reliable?

How much does it cost to fix common Audi A6 problems?

What is the 2019-2025 Audi A6 48V Belt Starter-Generator Warning and VIN-Specific Campaigns?

What is the 2005-2023 Audi A6 Water Pump and Thermostat Failure (Overheating)?

What is the 2005-2023 Audi A6 Electrical Issues (Window Regulators, Door Locks, MMI)?