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MG B Roadster MOT Check

MOT pass rates, common failures, and reliability data for the MG B Roadster. Check any B Roadster by registration number below.

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83.9%

Avg Pass Rate

+0.8%

vs MG Avg

1

Year Ranges

Good

Reliability

MG B Roadster — MOT Reliability Overview

The MG B Roadster has an average MOT pass rate of 83.9%, which is 0.8 percentage points above the MG brand average of 83.1%. This is a strong result, indicating that the B Roadster is well-engineered and tends to age well mechanically. Owners can expect fewer surprises at MOT time.

Before buying a used MG B Roadster, 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 MG B Roadster performs at MOT across different model years.

0

Based on 56 vehicles

83.9%Good
MG average: 83.1%
Mileage at 5yr

43k mi

Other MG Models

Compare MOT reliability across MG models.

MG ZR

74.1% pass rate

MG 6

64.3% pass rate

MG 3

76.5% pass rate

MG MGB

70.0% pass rate

MG Mgb Roadster

95.5% pass rate

MG B Gt

75.0% 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 MG B Roadster

MG B Roadster — Frequently Asked Questions

Common questions about the MG B Roadster MOT and reliability.

What is the MOT pass rate for the MG B Roadster?
The average MOT pass rate for the MG B Roadster is 83.9% compared to the MG average of 83.1%. 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 MG B Roadster?
Check the detailed breakdown on this page for specific failure data by year range.
Is the MG B Roadster reliable?
With an average MOT pass rate of 83.9%, the MG B Roadster 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 MG B Roadster?
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 MG B Roadster?
Typical mileage for the MG B Roadster: 42,754 miles at 5 years. Use these benchmarks when evaluating a used B Roadster to spot vehicles with unusually high or low mileage.

Check Your MG B Roadster's MOT History

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

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