What are the most common problems with the 2021 Audi A6?

The 2021 Audi A6 has a 'Below Average' reliability verdict, primarily due to a high number of critical safety recalls affecting airbags, braking, and electrical systems.

How many recalls does the 2021 Audi A6 have?

The 2021 Audi A6 currently has 59 recalls on file. Review the full recall report to see affected components and available remedies.

Is the 2021 Audi A6 a good buy used?

Verdict: Proceed with caution. The 2021 Audi A6 has a 'Below Average' reliability verdict, primarily due to a high number of critical safety recalls affecting airbags, braking, and electrical systems. Despite zero owner complaints logged, 278 Technical Service Bulletins (TSBs) indicate the manufacturer is aware of and addressing numerous potential issues. Prioritize inspecting the **airbag system**, particularly sensor detachment, and verify the completion of recalls related to **braking system components**. Confirm all recall campaigns have been addressed by a qualified technician, especially those concerning seat belts and electrical systems. The vehicle achieves a respectable 22 MPG combined, but factor in potential repair costs stemming from its complex systems and documented issues. Always verify service history, open recalls, and maintenance records before purchasing.

What maintenance costs should I expect for the 2021 Audi A6?

Refer to the maintenance cost guide for interval schedules, DIY difficulty ratings, and typical repair cost ranges for the 2021 Audi A6.

2021 Audi A6 Report

Known issues, recalls, running costs, and what to check before you buy.

Updated Jun 2, 2026Ryan Davis6 Critical Recalls

Overall Score

Our Verdict

Proceed with caution

Key Takeaways

The 2021 Audi A6 has a 'Below Average' reliability verdict, primarily due to a high number of critical safety recalls affecting airbags, braking, and electrical systems.
Despite zero owner complaints logged, 278 Technical Service Bulletins (TSBs) indicate the manufacturer is aware of and addressing numerous potential issues.
Prioritize inspecting the airbag system, particularly sensor detachment, and verify the completion of recalls related to braking system components.
Confirm all recall campaigns have been addressed by a qualified technician, especially those concerning seat belts and electrical systems.

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Overview

2021 Audi A6

The 2021 Audi A6 offers a sophisticated driving experience with its refined interior and capable all-wheel-drive system. However, for the used car shopper, this model demands careful consideration due to a notable number of safety-related recalls and a substantial number of Technical Service Bulletins (TSBs). While owner complaints are absent, the sheer volume of manufacturer-issued service advisories and recalls suggests potential for costly repairs and a need for diligent inspection before purchase. Its fuel economy is competitive for its class, but potential repair costs associated with its numerous recalls should be factored into the ownership equation.

Critical Failure Risk

Recalls indicate potential issues with rear seat belt retractors, specifically concerning child restraint system compatibility and locking mechanisms. This can compromise the security of child seats.

Early detection can help you avoid a $500-$1,500 repair.

Open Maintenance Analysis →

Safety & Bulletins

Open Recalls59

Service Bulletins0

Full Recall History →

Owner Complaints

No primary complaint themes found.

Detailed Issue Breakdown →

Performance & Efficiency

Fuel Efficiency

Combined

MPG

City

MPG

Highway

MPG

Full Vehicle Specifications ↓

Reliability

Practicality

The score is mainly limited by high fuel consumption.

Buyer Fit

Who This Car Is For

Best for

Discerning buyers who prioritize safety ratings and a premium interior experience.

+2 more buyer-fit notes in the full report

Avoid if

Budget-conscious buyers seeking minimal repair costs and maximum long-term reliability.

+2 more buyer-fit warnings in the full report

2021 Audi A6 Reliability Analysis

Specs

Vehicle Specs

Fuel Type: Premium
Seating Capacity: 5
Transmission: Automatic
Drivetrain: AWD/All-Wheel Drive
Body Style: Sedan
EPA Combined MPG: 22

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Most Common Issues

1. Seat Belt Retractor Issues

Most reported

Usage data observed

2. Airbag System Malfunctions

Usage data observed

See all common issues in the maintenance guide

First Service Interval

- Oil Change (Synthetic) (Parts: 5W-40 Synthetic Oil, Oil Filter) - Tire Rotation and Inspection - Brake System Inspection - Fluid Level Checks (Coolant, Brake, Washer)

Est. shop cost: $150 - $250

10,000 mi

Unlock the full maintenance guide for every scheduled service interval and cost forecast.

Full pre-purchase inspection checklist

Complete maintenance schedule (5 service intervals)

Repair forecasts with mileage and cost context

Full buyer-fit guidance and who should avoid it

Full specs and trim-level context

59 recall campaign details & remedy notes

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FAQ

Is the 2021 Audi A6 reliable?

The CarFocal Reliability Score for the 2021 Audi A6 is 6.8/10. Reliability score is 6.8/10. NHTSA recalls: 59. Owner complaints: 0.

How practical is the 2021 Audi A6 for daily use?

Practicality score is 4.1/10. The score is mainly limited by high fuel consumption. EPA combined economy is 22 MPG. Seating capacity is 5.

What is the overall score for the 2021 Audi A6?

The CarFocal Overall Score for the 2021 Audi A6 is 6.9/10. Overall score is 6.9/10 (Good). Confidence 85%. Maintenance 8.3/10. Practicality 4.1/10.

What does it cost to own and maintain a 2021 Audi A6?

Based on Carfocal's data, First listed service: - Oil Change (Synthetic) (Parts: 5W-40 Synthetic Oil, Oil Filter) - Tire Rotation and Inspection - Brake System Inspection - Fluid Level Checks (Coolant, Brake, Washer) at 10,000 miles. Estimated first-year maintenance: $500 - $900. Repair prediction highlight: Seat Belt Retractor (typical at 50,000 miles, estimated cost Min: $300 • Max: $800).

What is the MSRP range for the 2021 Audi A6?

Base MSRP is $54,900.

What engine is in the 2021 Audi A6?

Engine specs list 6 • 3.0.

What transmission does the 2021 Audi A6 use?

According to CarFocal's specs for the 2021 Audi A6, transmission is Automatic. The paired drivetrain is AWD/All-Wheel Drive.

Does the 2021 A6 require Premium gas?

Manufacturer fuel recommendation: Premium.

What is the combined EPA MPG for the 2021 Audi A6?

EPA combined estimate is 22 MPG.

What driver assistance and safety features are available on the 2021 Audi A6?

12 standard driver assistance features. Key features include Anti-lock Braking System, Electronic Stability Control, Traction Control.

How many people fit in a 2021 Audi A6?

According to CarFocal's specs for the 2021 Audi A6, seating capacity is 5.

What body style is the 2021 Audi A6?

According to CarFocal's specs for the 2021 Audi A6, body style is sedan.

What drivetrain does the 2021 Audi A6 use?

According to CarFocal's specs for the 2021 Audi A6, drivetrain is AWD/All-Wheel Drive. Transmission is Automatic.

What are the NHTSA safety ratings for the 2021 Audi A6?

NHTSA ratings: Overall 5/5 • Frontal 4/5 • Side 5/5 • Rollover 5/5.

Are there open safety recalls on the 2021 Audi A6?

This model year has 59 official safety campaigns listed.

Should buyers consider alternatives to the 2021 Audi A6?

Alternatives listed in this guide: 2021 Mercedes-Benz E-Class and 2021 Lexus ES.