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Triumph S MOT Check

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

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84.0%

Avg Pass Rate

-6.5%

vs Triumph Avg

3

Year Ranges

Good

Reliability

Triumph S — MOT Reliability Overview

The Triumph S has an average MOT pass rate of 84.0%, which is 6.5 percentage points below the Triumph brand average of 90.4%. This is a strong result, indicating that the S is well-engineered and tends to age well mechanically. Owners can expect fewer surprises at MOT time.

Before buying a used Triumph S, 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 Triumph S performs at MOT across different model years.

1976

Based on 30 vehicles

80.0%Good
Triumph average: 90.4%
Retest Rate

22.2%

1972

Based on 43 vehicles

76.7%Good
Triumph average: 90.4%
Dangerous Defects

3.1%

Retest Rate

18.8%

0

Based on 3,682 vehicles

95.2%Excellent
Triumph average: 90.4%
Mileage at 5yr

14k mi

Where Failures Occur

The areas of the vehicle most commonly flagged during MOT inspections.

Rear Nearside

6.7%

Front Nearside

6.7%

Other Triumph Models

Compare MOT reliability across Triumph models.

Triumph TR7

100.0% pass rate

Triumph Dolomite

91.7% pass rate

Triumph GT6

95.5% pass rate

Triumph Bonneville T100 Bud Ekins

100.0% pass rate

Triumph Trophy 3

100.0% pass rate

Triumph Sprint Rs

84.4% 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 Triumph S

Triumph S — Frequently Asked Questions

Common questions about the Triumph S MOT and reliability.

What is the MOT pass rate for the Triumph S?
The average MOT pass rate for the Triumph S is 84.0% compared to the Triumph average of 90.4%. 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 Triumph S?
Check the detailed breakdown on this page for specific failure data by year range.
Is the Triumph S reliable?
With an average MOT pass rate of 84.0%, the Triumph S is rated as "Good" for reliability. This is a strong result suggesting good build quality and fewer common defects.
How do I check the MOT history of a Triumph S?
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 Triumph S?
Typical mileage for the Triumph S: 13,852 miles at 5 years. Use these benchmarks when evaluating a used S to spot vehicles with unusually high or low mileage.

Check Your Triumph S's MOT History

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

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