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Audi A6 Common Problems, Faults & Repair Costs (2026)

Based on official DVSA MOT test data. View the most common MOT failure categories, pass rates, and estimated repair costs for the Audi A6 (1997–present).

MOT Pass Rate

78.5%3.5% below national avg (82%)

Reliability rating: Good — based on approx. 45,000 tests

Dangerous Defects

1.90%

Moderate risk

Retest Rate

14.5%

of failed tests need a retest

Top MOT Failure Categories

1

Lamps, reflectors and electrical equipment

Est. repair: £40–£200

15.5%
2

Suspension

Est. repair: £120–£450

15.5%
3

Brakes

Est. repair: £100–£350

13.0%
4

Tyres

Est. repair: £50–£120 per tyre

10.0%
5

Exhaust, fuel and emissions

Est. repair: £40–£200

9.2%

Where Faults Occur

30.0%

Front

29.0%

Rear

21.0%

Offside

Mileage Benchmarks

At 3 years

30,000 mi

At 5 years

50,000 mi

At 10 years

98,000 mi

Significantly higher or lower mileage than these benchmarks may indicate unusual usage patterns. Check the full MOT history for mileage consistency.

Is a Audi A6 a Good Buy?

The Audi A6 shows average reliability in MOT data. With a 78.5% pass rate, it sits 3.5% below the national average of 82%.

Budget for potential repairs in lamps, reflectors and electrical equipment and suspension. An independent pre-purchase inspection is recommended, especially for older examples. Always check the full MOT history for recurring issues.

Audi A6 MOT Check & History

View detailed MOT pass rates by year, mileage benchmarks, and full test history data for the Audi A6.

View Audi A6 MOT Data

Check a Specific Audi A6

Enter a registration number to view the full MOT history for any Audi A6.

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Other Audi Models

Audi A3

81.2%

Lamps, reflectors and electrical equipment →

Audi A4

79.8%

Lamps, reflectors and electrical equipment →

Audi A1

83.5%

Lamps, reflectors and electrical equipment →

Audi Q3

84.2%

Lamps, reflectors and electrical equipment →

Audi Q5

83.0%

Lamps, reflectors and electrical equipment →

Audi A5

82.2%

Lamps, reflectors and electrical equipment →

View all Audi models

Frequently Asked Questions

What are the most common MOT faults on a Audi A6?
The top MOT failure on the Audi A6 is Lamps, reflectors and electrical equipment, accounting for approximately 15.5% of all failures. Other common issues include suspension and brakes.
What is the Audi A6 MOT pass rate?
The Audi A6 has an estimated MOT pass rate of 78.5%, which is 3.5% below the national average of 82%. This rates the Audi A6 as "Good" for MOT reliability.
Is the Audi A6 reliable?
Based on DVSA MOT data, the Audi A6 has a good reliability record with a 78.5% pass rate. It has a dangerous defect rate of 1.90% and a retest rate of 14.5%.
How much does it cost to fix common Audi A6 MOT failures?
Typical repair costs for Audi A6 MOT failures range from £30–£200 for lamps, reflectors and electrical equipment issues to £120–£450 for suspension problems. Prices are estimates based on typical UK independent garage rates.
What mileage should a Audi A6 have?
Based on MOT test data, the average Audi A6 covers approximately 30,000 mi by 3 years, 50,000 mi by 5 years, and 98,000 mi by 10 years. Significantly higher or lower mileage may warrant closer inspection.
Should I buy a used Audi A6?
The Audi A6 is generally a solid choice based on MOT data. Check the full MOT history of any specific vehicle before purchasing, paying particular attention to lamps, reflectors and electrical equipment issues and mileage consistency.
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