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Proton C9 MOT Check

MOT pass rates, common failures, and reliability data for the Proton C9. Check any C9 by registration number below.

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90.7%

Avg Pass Rate

+20.9%

vs Proton Avg

5

Year Ranges

Excellent

Reliability

Proton C9 — MOT Reliability Overview

The Proton C9 has an average MOT pass rate of 90.7%, which is 20.9 percentage points above the Proton brand average of 69.8%. This is a strong result, indicating that the C9 is well-engineered and tends to age well mechanically. Owners can expect fewer surprises at MOT time.

Before buying a used Proton C9, we recommend checking the full MOT history, write-off status, outstanding finance, and stolen vehicle status. These checks can be done for free using the registration number.

MOT Pass Rate by Year

How the Proton C9 performs at MOT across different model years.

2001

Based on 51 vehicles

94.1%Excellent
Proton average: 69.8%
Mileage at 10yr

143k mi

1999

Based on 53 vehicles

92.5%Excellent
Proton average: 69.8%
Mileage at 10yr

193k mi

1998

Based on 87 vehicles

87.4%Excellent
Proton average: 69.8%

1997

Based on 109 vehicles

88.1%Excellent
Proton average: 69.8%

1996

Based on 58 vehicles

91.4%Excellent
Proton average: 69.8%

Other Proton Models

Compare MOT reliability across Proton models.

Proton Savvy

58.5% pass rate

Proton Gen-2

57.1% pass rate

Proton 415

91.4% pass rate

Proton Persona

80.0% pass rate

Proton Persona Compact

80.4% pass rate

Proton Satria

66.1% pass rate

Useful MOT Guides

Common MOT Failures

The most common reasons UK vehicles fail their MOT — and how to prepare.

MOT Checklist

Pre-MOT checklist to improve your chances of passing first time.

Advisory vs Failure

Understanding the difference between MOT advisories and failures.

See detailed fault analysis for Proton C9

Proton C9 — Frequently Asked Questions

Common questions about the Proton C9 MOT and reliability.

What is the MOT pass rate for the Proton C9?
The average MOT pass rate for the Proton C9 is 90.7% compared to the Proton average of 69.8%. Pass rates vary by year — check the year-by-year breakdown on this page for details.
What are the most common MOT failures on a Proton C9?
Check the detailed breakdown on this page for specific failure data by year range.
Is the Proton C9 reliable?
With an average MOT pass rate of 90.7%, the Proton C9 is rated as "Excellent" for reliability. This is a strong result suggesting good build quality and fewer common defects.
How do I check the MOT history of a Proton C9?
Enter the vehicle's registration number in the search box at the top of this page. You will instantly see the complete MOT history including every test result, mileage readings, advisories, and dangerous defects — completely free.
What mileage should I expect on a Proton C9?
Typical mileage for the Proton C9: 142,983 miles at 10 years. Use these benchmarks when evaluating a used C9 to spot vehicles with unusually high or low mileage.

Check Your Proton C9's MOT History

Enter the registration number for the full MOT history — free and instant.

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