Mazda B Series MOT Check

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

Free, instant, no sign-up required.

68.0%

Avg Pass Rate

-15.3%

vs Mazda Avg

Year Ranges

Average

Reliability

Mazda B Series — MOT Reliability Overview

The Mazda B Series has an average MOT pass rate of 68.0%, which is 15.3 percentage points below the Mazda brand average of 83.3%. This is a reasonable result that reflects typical UK reliability standards. Regular servicing and addressing advisories promptly will help keep your B Series on the road.

The most common reasons a Mazda B Series fails its MOT are vehicle structure corroded to the extent that the rigidity of the assembly is seriously reduced, a transmission shaft constant velocity joint boot missing or no longer prevents the ingress of dirt etc, body, cab or chassis excessively corroded at a mounting point. If you are preparing your B Series for its MOT, checking these areas first could save you a retest fee. Our detailed fault analysis includes estimated repair costs for each failure type.

Before buying a used Mazda B Series, 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 Mazda B Series performs at MOT across different model years.

2006

Based on 333 vehicles

69.7%Average

Mazda average: 83.3%

Dangerous Defects

7.5%

Retest Rate

31.2%

2005

Based on 880 vehicles

64.9%Below Average

Mazda average: 83.3%

Dangerous Defects

6.7%

Retest Rate

24.2%

2004

Based on 438 vehicles

61.9%Below Average

Mazda average: 83.3%

Dangerous Defects

6.9%

Retest Rate

23.6%

2003

Based on 610 vehicles

64.9%Below Average

Mazda average: 83.3%

Dangerous Defects

7.0%

Retest Rate

22.0%

2002

Based on 604 vehicles

66.2%Average

Mazda average: 83.3%

Dangerous Defects

10.4%

Retest Rate

25.3%

2001

Based on 293 vehicles

68.6%Average

Mazda average: 83.3%

Dangerous Defects

6.9%

Retest Rate

20.8%

2000

Based on 417 vehicles

65.7%Average

Mazda average: 83.3%

Dangerous Defects

8.8%

Retest Rate

25.4%

1999

Based on 294 vehicles

61.9%Below Average

Mazda average: 83.3%

Dangerous Defects

4.0%

Retest Rate

38.8%

1998

Based on 121 vehicles

68.6%Average

Mazda average: 83.3%

Dangerous Defects

1.2%

Retest Rate

22.0%

1995

Based on 31 vehicles

74.2%Average

Mazda average: 83.3%

Dangerous Defects

4.0%

Retest Rate

28.0%

1992

Based on 30 vehicles

76.7%Good

Mazda average: 83.3%

Retest Rate

22.2%

0

Based on 2,405 vehicles

72.1%Average

Mazda average: 83.3%

Mileage at 5yr

120k mi

Top MOT Failures — Mazda B Series

The most common reasons a Mazda B Series fails its MOT, aggregated across all year ranges.

Vehicle structure corroded to the extent that the rigidity of the assembly is seriously reduced

7.4%

A transmission shaft constant velocity joint boot missing or no longer prevents the ingress of dirt etc

5.9%

Body, cab or chassis excessively corroded at a mounting point

4.5%

A headlamp or light source missing, inoperative or more than ½ not functioning in the case of LED

4.4%

An obligatory rear fog lamp missing, or a front or rear fog lamp inoperative or in the case of a multiple light source more than 1/2 not functioning

4.2%

Mazda B Series Common Faults & Repair Costs

Where Failures Occur

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

Front Nearside

10.2%

Front Offside

8.7%

Offside

5.7%

Other Mazda Models

Compare MOT reliability across Mazda models.

Mazda Mx-30 Se-l Lux Ev

93.1% pass rate

Mazda 2 Se-l

100.0% pass rate

Mazda MPV

54.1% pass rate

Mazda E Series

65.9% pass rate

Mazda Premacy

88.7% pass rate

Mazda 5

73.3% 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 Mazda B Series

Mazda B Series — Frequently Asked Questions

Common questions about the Mazda B Series MOT and reliability.

What is the MOT pass rate for the Mazda B Series?

The average MOT pass rate for the Mazda B Series is 68.0% compared to the Mazda average of 83.3%. 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 Mazda B Series?

The most common MOT failures on the Mazda B Series are: Vehicle structure corroded to the extent that the rigidity of the assembly is seriously reduced (7.4%), A transmission shaft constant velocity joint boot missing or no longer prevents the ingress of dirt etc (5.9%), Body, cab or chassis excessively corroded at a mounting point (4.5%). These are the components most likely to cause an MOT failure.

Is the Mazda B Series reliable?

With an average MOT pass rate of 68.0%, the Mazda B Series is rated as "Average" for reliability. This is around average — regular maintenance is recommended to avoid common failure points.

How do I check the MOT history of a Mazda B Series?

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 Mazda B Series?

Typical mileage for the Mazda B Series: 119,745 miles at 5 years. Use these benchmarks when evaluating a used B Series to spot vehicles with unusually high or low mileage.

Check Your Mazda B Series's MOT History

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