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Aston Martin DB9 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 Aston Martin DB9 (2004–2016).

MOT Pass Rate

79.8%2.2% below national avg (82%)

Reliability rating: Good — based on approx. 2,000 tests

Dangerous Defects

1.70%

Moderate risk

Retest Rate

13.5%

of failed tests need a retest

Top MOT Failure Categories

1

Lamps, reflectors and electrical equipment

Est. repair: £40–£200

15.0%
2

Suspension

Est. repair: £120–£450

14.0%
3

Brakes

Est. repair: £100–£350

12.0%
4

Tyres

Est. repair: £50–£120 per tyre

10.0%
5

Exhaust, fuel and emissions

Est. repair: £40–£200

8.0%

Where Faults Occur

30.0%

Front

28.0%

Rear

21.0%

Offside

Mileage Benchmarks

At 3 years

8,000 mi

At 5 years

14,000 mi

At 10 years

26,000 mi

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

Is a Aston Martin DB9 a Good Buy?

The Aston Martin DB9 shows average reliability in MOT data. With a 79.8% pass rate, it sits 2.2% 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.

Aston Martin DB9 MOT Check & History

View detailed MOT pass rates by year, mileage benchmarks, and full test history data for the Aston Martin DB9.

View Aston Martin DB9 MOT Data

Check a Specific Aston Martin DB9

Enter a registration number to view the full MOT history for any Aston Martin DB9.

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Other Aston Martin Models

Aston Martin Vantage

81.5%

Lamps, reflectors and electrical equipment →

Aston Martin DB11

83.5%

Lamps, reflectors and electrical equipment →

Aston Martin DBX

85.2%

Lamps, reflectors and electrical equipment →

Aston Martin Rapide

79.2%

Lamps, reflectors and electrical equipment →

View all Aston Martin models

Frequently Asked Questions

What are the most common MOT faults on a Aston Martin DB9?
The top MOT failure on the Aston Martin DB9 is Lamps, reflectors and electrical equipment, accounting for approximately 15.0% of all failures. Other common issues include suspension and brakes.
What is the Aston Martin DB9 MOT pass rate?
The Aston Martin DB9 has an estimated MOT pass rate of 79.8%, which is 2.2% below the national average of 82%. This rates the Aston Martin DB9 as "Good" for MOT reliability.
Is the Aston Martin DB9 reliable?
Based on DVSA MOT data, the Aston Martin DB9 has a good reliability record with a 79.8% pass rate. It has a dangerous defect rate of 1.70% and a retest rate of 13.5%.
How much does it cost to fix common Aston Martin DB9 MOT failures?
Typical repair costs for Aston Martin DB9 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 Aston Martin DB9 have?
Based on MOT test data, the average Aston Martin DB9 covers approximately 8,000 mi by 3 years, 14,000 mi by 5 years, and 26,000 mi by 10 years. Significantly higher or lower mileage may warrant closer inspection.
Should I buy a used Aston Martin DB9?
The Aston Martin DB9 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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