Mazda B Series
Reliability, estimated running costs, and MOT data across 10 model years from 2,852 MOT tests in 2024.
Avg Pass Rate
73%
Total Tests
2,852
Highest Pass Rate
2001 (76%)
Years Covered
10
About the Mazda B Series
The Mazda B Series was MOT tested 2,852 times in 2024 (DVSA data, retests included) across 10 model years (1995 to 2006), with an average pass rate of 73%. That's 9 points below the average of 82% across all models in our data, so check the year-by-year data carefully before buying. Our records list diesel and petrol versions.
Best and Worst Years
Of the years with at least 100 tests, the 2001 model has the highest pass rate at 76% from 192 tests. The 2004 model has the lowest at 70%. The 6 point gap means pass rates vary somewhat between years, but no year is dramatically different. Newer cars usually pass more often simply because they are younger.
Reliability Trend
The Mazda B Series has maintained consistent MOT pass rates across model years, varying by only 1 percentage point.
Mileage Across Years
The oldest model in our data (1995) averages 104,863 miles, while the newest (2006) averages 115,029 miles. Older models have covered serious mileage, so suspension and drivetrain wear are worth checking.
Compared to the Mazda brand average of 81%, the B Series is 8 points lower, placing it among the less reliable Mazda models.
Estimated Running Costs
Higher due to low pass rate
Based on 7,400 miles/year, average pump prices of 174.57p petrol and 199.33p diesel (GOV.UK weekly road fuel prices, week of 19 October 2026), and MOT pass rate data. Insurance not included.
Full 2006 detailsHow reliable is the Mazda B Series?
Mazda B Series by Year
Click any year to see detailed running costs, reliability data, and comparisons with similar cars.
Questions about the Mazda B Series
Is the Mazda B Series reliable?
Across its 10 model years in our data (1995 to 2006), the Mazda B Series averages a 73% MOT pass rate, from 2,852 tests (DVSA MOT data for tests in 2024, retests included). That's 9 points below the average of 82% across all models in the same data. The 2001 model has the highest pass rate of the years with at least 100 tests, at 76%.
Which year Mazda B Series has the best MOT pass rate?
Of the years with at least 100 tests, the 2001 Mazda B Series has the highest MOT pass rate at 76%, while the 2004 model has the lowest at 70%, a 6 point gap. Newer cars usually pass more often simply because they are younger, so compare years of a similar age.
Are newer Mazda B Seriess more reliable?
The Mazda B Series has maintained consistent MOT pass rates across model years, varying by only 1 percentage point.
Mazda B Series Guides & Articles
Most Reliable Used Cars UK 2026 (Ranked With Real MOT Data)
11 min read
Reliability20 Most Reliable Used Cars UK 2026: Real MOT Pass Rate Rankings
10 min read
ComparisonPetrol vs Diesel in 2026: Which Actually Costs Less to Own?
8 min read
Buying GuideFord Fiesta Common Problems (2026): What to Check Before Buying
13 min read
ReliabilityFord Puma Common Problems: 7 Issues That Could Cost £1,500+ (2026)
13 min read
Checking a specific Mazda B Series?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.