1999 Mazda 121 — MOT History by Age

How cars manufactured in 1999 perform at MOT as they age

27 years

Current Age

43.3%

Latest Pass Rate

2,594

Total Tests (All Years)

52,885 mi

Avg Mileage (Latest)

Data from official DVSA MOT testing records

Insufficient data for same-age comparison.

How This Car Ages

Pass rate progression for the 1999 Mazda 121 as it ages.

10 yrs43.9%

→ ↓1.6%

11 yrs42.3%

→ ↑3.3%

12 yrs45.6%

→ ↑1.4%

13 yrs47.0%

→ ↓3.8%

14 yrs43.2%

→ ↓2.9%

15 yrs40.3%

→ ↑9.1%

16 yrs49.4%

→ ↓1.2%

17 yrs48.2%

→ ↓5.6%

18 yrs42.6%

→ ↑9.5%

19 yrs52.1%

→ ↓5.0%

20 yrs47.1%

→ ↓3.8%

21 yrs43.3%

📊 View as table

Age	Pass Rate	Tests
10 yrs	43.9%	469
11 yrs	42.3%	414
12 yrs	45.6%	377
13 yrs	47.0%	328
14 yrs	43.2%	278
15 yrs	40.3%	216
16 yrs	49.4%	162
17 yrs	48.2%	137
18 yrs	42.6%	101
19 yrs	52.1%	48
20 yrs	47.1%	34
21 yrs	43.3%	30

Pass Rate Trend

How the 1999 Mazda 121 pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2020 (21 yrs)	43.3%	30
2019 (20 yrs)	47.1%	34
2018 (19 yrs)	52.1%	48
2017 (18 yrs)	42.6%	101
2016 (17 yrs)	48.2%	137
2015 (16 yrs)	49.4%	162
2014 (15 yrs)	40.3%	216
2013 (14 yrs)	43.2%	278
2012 (13 yrs)	47%	328
2011 (12 yrs)	45.6%	377
2010 (11 yrs)	42.3%	414
2009 (10 yrs)	43.9%	469

Year-by-Year MOT Results

2009High Fail Rate

43.9%

Age (yrs) 10Tests 469Avg Mileage 58,603Top Failure Brakes — 38.6%

2010High Fail Rate

42.3%

Age (yrs) 11Tests 414Avg Mileage 58,896Top Failure Brakes — 39.9%

2011High Fail Rate

45.6%

Age (yrs) 12Tests 377Avg Mileage 60,690Top Failure Brakes — 39.0%

2012High Fail Rate

47.0%

Age (yrs) 13Tests 328Avg Mileage 61,101Top Failure Suspension — 37.2%

2013High Fail Rate

43.2%

Age (yrs) 14Tests 278Avg Mileage 63,939Top Failure Suspension — 121.9%

2014High Fail Rate

40.3%

Age (yrs) 15Tests 216Avg Mileage 62,994Top Failure Brakes — 119.4%

2015High Fail Rate

49.4%

Age (yrs) 16Tests 162Avg Mileage 64,996Top Failure Brakes — 107.4%

2016High Fail Rate

48.2%

Age (yrs) 17Tests 137Avg Mileage 64,919Top Failure Suspension — 134.3%

2017High Fail Rate

42.6%

Age (yrs) 18Tests 101Avg Mileage 62,780Top Failure Suspension — 129.7%

2018High Fail Rate

52.1%

Age (yrs) 19Tests 48Avg Mileage 59,203Top Failure Suspension — 150.0%

2019High Fail Rate

47.1%

Age (yrs) 20Tests 34Avg Mileage 56,467Top Failure Suspension — 144.1%

2020High Fail Rate

43.3%

Age (yrs) 21Tests 30Avg Mileage 52,885Top Failure Suspension — 103.3%

MOT results for 1999 Mazda 121 by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	10	43.9%	469	58,603	Brakes — 38.6%
2010	11	42.3%	414	58,896	Brakes — 39.9%
2011	12	45.6%	377	60,690	Brakes — 39.0%
2012	13	47.0%	328	61,101	Suspension — 37.2%
2013	14	43.2%	278	63,939	Suspension — 121.9%
2014	15	40.3%	216	62,994	Brakes — 119.4%
2015	16	49.4%	162	64,996	Brakes — 107.4%
2016	17	48.2%	137	64,919	Suspension — 134.3%
2017	18	42.6%	101	62,780	Suspension — 129.7%
2018	19	52.1%	48	59,203	Suspension — 150.0%
2019	20	47.1%	34	56,467	Suspension — 144.1%
2020	21	43.3%	30	52,885	Suspension — 103.3%

Common MOT Failures

Top failure categories across all test years for 1999 Mazda 121, with age trends.

Suspension

94.5%

↑ Increases with age

Brakes

84.3%

↑ Increases with age

Visibility

52.9%

— Consistent

Lamps, reflectors and electrical equipment

43.7%

— Consistent

Body, chassis, structure

38.6%

↓ 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
Suspension	27.9% (10 yrs)	103.3% (21 yrs)	+75.4%	🔴 ↑
Brakes	38.6% (10 yrs)	66.7% (21 yrs)	+28.1%	🔴 ↑
Tyres	17.3% (10 yrs)	43.3% (21 yrs)	+26.0%	🔴 ↑

Other Manufacture Years

1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002

← Back to Mazda 121 overview

Looking for the best year to buy? See the full comparison on the Mazda 121 page →

About This Data

This page shows how Mazda 121 cars manufactured in 1999 perform at MOT as they age. Data spans from 2009 to 2020, covering 2,594 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.