2004 Mazda B Series — MOT History by Age

How cars manufactured in 2004 perform at MOT as they age

22 years

Current Age

65.3%

Latest Pass Rate

1,308

Total Tests (All Years)

121,014 mi

Avg Mileage (Latest)

Data from official DVSA MOT testing records

Compared to Average at Age 20

This car: 65.3%

Average: 56.6%

✅ 8.7% above average (6824 models compared)

How This Car Ages

Pass rate progression for the 2004 Mazda B Series as it ages.

13 yrs54.7%

→ ↓1.0%

14 yrs53.7%

→ ↓3.7%

15 yrs50.0%

→ ↑6.1%

16 yrs56.1%

→ ↓8.8%

17 yrs47.3%

→ ↑9.1%

18 yrs56.4%

→ ↓6.2%

19 yrs50.2%

→ ↑15.1%

20 yrs65.3%

📊 View as table

Age	Pass Rate	Tests
13 yrs	54.7%	128
14 yrs	53.7%	82
15 yrs	50.0%	66
16 yrs	56.1%	255
17 yrs	47.3%	281
18 yrs	56.4%	195
19 yrs	50.2%	203
20 yrs	65.3%	98

Pass Rate Trend

How the 2004 Mazda B Series pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2024 (20 yrs)	65.3%	98
2023 (19 yrs)	50.2%	203
2022 (18 yrs)	56.4%	195
2021 (17 yrs)	47.3%	281
2020 (16 yrs)	56.1%	255
2019 (15 yrs)	50%	66
2018 (14 yrs)	53.7%	82
2017 (13 yrs)	54.7%	128

Year-by-Year MOT Results

2017High Fail Rate

54.7%

Age (yrs) 13Tests 128Avg Mileage 104,263Top Failure Brakes — 57.8%

2018High Fail Rate

53.7%

Age (yrs) 14Tests 82Avg Mileage 111,948Top Failure Suspension — 48.8%

2019High Fail Rate

50.0%

Age (yrs) 15Tests 66Avg Mileage 106,410Top Failure Brakes — 77.3%

2020High Fail Rate

56.1%

Age (yrs) 16Tests 255Avg Mileage 114,873Top Failure Brakes — 62.7%

2021High Fail Rate

47.3%

Age (yrs) 17Tests 281Avg Mileage 119,450Top Failure Lamps, reflectors and electrical equipment — 74.0%

2022High Fail Rate

56.4%

Age (yrs) 18Tests 195Avg Mileage 120,123Top Failure Body, chassis, structure — 70.3%

2023High Fail Rate

50.2%

Age (yrs) 19Tests 203Avg Mileage 118,910Top Failure Brakes — 88.2%

2024

65.3%

Age (yrs) 20Tests 98Avg Mileage 121,014Top Failure Body, chassis, structure — 85.7%

MOT results for 2004 Mazda B Series by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2017	13	54.7%	128	104,263	Brakes — 57.8%
2018	14	53.7%	82	111,948	Suspension — 48.8%
2019	15	50.0%	66	106,410	Brakes — 77.3%
2020	16	56.1%	255	114,873	Brakes — 62.7%
2021	17	47.3%	281	119,450	Lamps, reflectors and electrical equipment — 74.0%
2022	18	56.4%	195	120,123	Body, chassis, structure — 70.3%
2023	19	50.2%	203	118,910	Brakes — 88.2%
2024	20	65.3%	98	121,014	Body, chassis, structure — 85.7%

Common MOT Failures

Top failure categories across all test years for 2004 Mazda B Series, with age trends.

Body, chassis, structure

72.0%

↑ Increases with age

Brakes

65.1%

↓ Decreases with age

Lamps, reflectors and electrical equipment

58.1%

↑ Increases with age

Suspension

51.4%

↓ Decreases with age

Lamps, Reflectors and Electrical Equipment

40.1%

↓ Decreases with age

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

Category	At Youngest	At Oldest	Change	Trend
Tyres	12.5% (13 yrs)	23.5% (20 yrs)	+11.0%	🔴 ↑
Brakes	57.8% (13 yrs)	51.0% (20 yrs)	-6.8%	🟢 ↓
Suspension	48.4% (13 yrs)	43.9% (20 yrs)	-4.5%	🟢 ↓

Other Manufacture Years

1998 1999 2000 2001 2002 2003 2004 2005 2006

← Back to Mazda B Series overview

Looking for the best year to buy? See the full comparison on the Mazda B Series page →

About This Data

This page shows how Mazda B Series cars manufactured in 2004 perform at MOT as they age. Data spans from 2017 to 2024, covering 1,308 tests. Pass rates naturally decline with age as components wear.

Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.