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Audi S3 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 S3 (2006–present).

MOT Pass Rate

81.8%0.2% below national avg (82%)

Reliability rating: Good — based on approx. 8,000 tests

Dangerous Defects

1.60%

Moderate risk

Retest Rate

12.5%

of failed tests need a retest

Top MOT Failure Categories

1

Lamps, reflectors and electrical equipment

Est. repair: £40–£200

14.5%
2

Suspension

Est. repair: £120–£450

13.2%
3

Brakes

Est. repair: £100–£350

11.5%
4

Tyres

Est. repair: £50–£120 per tyre

10.0%
5

Exhaust, fuel and emissions

Est. repair: £40–£200

7.5%

Where Faults Occur

31.0%

Front

28.0%

Rear

20.0%

Offside

Mileage Benchmarks

At 3 years

20,000 mi

At 5 years

34,000 mi

At 10 years

65,000 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 S3 a Good Buy?

The Audi S3 demonstrates above-average reliability based on MOT test data, with a 81.8% pass rate. This places it 0.2% above the national average, suggesting lower ongoing maintenance costs compared to many competitors.

While no car is without faults, lamps, reflectors and electrical equipment issues are the most common concern, affecting approximately 14.5% of failed tests. These tend to be relatively affordable to fix at £30–£150.

Audi S3 MOT Check & History

View detailed MOT pass rates by year, mileage benchmarks, and full test history data for the Audi S3.

View Audi S3 MOT Data

Check a Specific Audi S3

Enter a registration number to view the full MOT history for any Audi S3.

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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 S3?
The top MOT failure on the Audi S3 is Lamps, reflectors and electrical equipment, accounting for approximately 14.5% of all failures. Other common issues include suspension and brakes.
What is the Audi S3 MOT pass rate?
The Audi S3 has an estimated MOT pass rate of 81.8%, which is 0.2% below the national average of 82%. This rates the Audi S3 as "Good" for MOT reliability.
Is the Audi S3 reliable?
Based on DVSA MOT data, the Audi S3 has a good reliability record with a 81.8% pass rate. It has a dangerous defect rate of 1.60% and a retest rate of 12.5%.
How much does it cost to fix common Audi S3 MOT failures?
Typical repair costs for Audi S3 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 S3 have?
Based on MOT test data, the average Audi S3 covers approximately 20,000 mi by 3 years, 34,000 mi by 5 years, and 65,000 mi by 10 years. Significantly higher or lower mileage may warrant closer inspection.
Should I buy a used Audi S3?
The Audi S3 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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