2003 MG Zs — MOT History by Age

How cars manufactured in 2003 perform at MOT as they age

23 years

Current Age

60.7%

Latest Pass Rate

33,771

Total Tests (All Years)

84,217 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 2003 MG Zs as it ages.

6 yrs60.7%

→ ↓2.4%

7 yrs58.3%

→ ↓4.2%

8 yrs54.1%

→ ↓4.1%

9 yrs50.0%

→ ↓4.0%

10 yrs46.0%

→ ↓1.6%

11 yrs44.4%

→ ↑1.9%

12 yrs46.3%

→ ↑0.4%

13 yrs46.7%

→ ↑0.6%

14 yrs47.3%

→ ↑0.7%

15 yrs48.0%

→ ↑5.3%

16 yrs53.3%

→ ↑4.5%

17 yrs57.8%

→ ↓5.7%

18 yrs52.1%

→ ↑5.5%

19 yrs57.6%

→ ↓1.3%

20 yrs56.3%

→ ↑4.4%

21 yrs60.7%

📊 View as table

Age	Pass Rate	Tests
6 yrs	60.7%	4,992
7 yrs	58.3%	4,709
8 yrs	54.1%	4,534
9 yrs	50.0%	4,154
10 yrs	46.0%	3,634
11 yrs	44.4%	2,986
12 yrs	46.3%	2,438
13 yrs	46.7%	1,909
14 yrs	47.3%	1,387
15 yrs	48.0%	681
16 yrs	53.3%	552
17 yrs	57.8%	405
18 yrs	52.1%	430
19 yrs	57.6%	304
20 yrs	56.3%	320
21 yrs	60.7%	336

Pass Rate Trend

How the 2003 MG Zs pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2024 (21 yrs)	60.7%	336
2023 (20 yrs)	56.3%	320
2022 (19 yrs)	57.6%	304
2021 (18 yrs)	52.1%	430
2020 (17 yrs)	57.8%	405
2019 (16 yrs)	53.3%	552
2018 (15 yrs)	48%	681
2017 (14 yrs)	47.3%	1,387
2016 (13 yrs)	46.7%	1,909
2015 (12 yrs)	46.3%	2,438
2014 (11 yrs)	44.4%	2,986
2013 (10 yrs)	46%	3,634
2012 (9 yrs)	50%	4,154
2011 (8 yrs)	54.1%	4,534
2010 (7 yrs)	58.3%	4,709
2009 (6 yrs)	60.7%	4,992

Year-by-Year MOT Results

2009High Fail Rate

60.7%

Age (yrs) 6Tests 4,992Avg Mileage 54,771Top Failure Lamps, Reflectors and Electrical Equipment — 19.9%

2010High Fail Rate

58.3%

Age (yrs) 7Tests 4,709Avg Mileage 62,867Top Failure Brakes — 23.1%

2011High Fail Rate

54.1%

Age (yrs) 8Tests 4,534Avg Mileage 68,328Top Failure Brakes — 26.4%

2012High Fail Rate

50.0%

Age (yrs) 9Tests 4,154Avg Mileage 74,035Top Failure Brakes — 31.1%

2013High Fail Rate

46.0%

Age (yrs) 10Tests 3,634Avg Mileage 78,225Top Failure Brakes — 87.8%

2014High Fail Rate

44.4%

Age (yrs) 11Tests 2,986Avg Mileage 83,345Top Failure Brakes — 99.2%

2015High Fail Rate

46.3%

Age (yrs) 12Tests 2,438Avg Mileage 84,944Top Failure Brakes — 90.1%

2016High Fail Rate

46.7%

Age (yrs) 13Tests 1,909Avg Mileage 87,298Top Failure Brakes — 85.1%

2017High Fail Rate

47.3%

Age (yrs) 14Tests 1,387Avg Mileage 89,117Top Failure Brakes — 96.1%

2018High Fail Rate

48.0%

Age (yrs) 15Tests 681Avg Mileage 89,238Top Failure Brakes — 87.8%

2019High Fail Rate

53.3%

Age (yrs) 16Tests 552Avg Mileage 88,799Top Failure Brakes — 82.4%

2020High Fail Rate

57.8%

Age (yrs) 17Tests 405Avg Mileage 87,556Top Failure Brakes — 77.8%

2021High Fail Rate

52.1%

Age (yrs) 18Tests 430Avg Mileage 87,530Top Failure Brakes — 83.3%

2022High Fail Rate

57.6%

Age (yrs) 19Tests 304Avg Mileage 86,229Top Failure Brakes — 74.7%

2023High Fail Rate

56.3%

Age (yrs) 20Tests 320Avg Mileage 85,592Top Failure Brakes — 89.7%

2024High Fail Rate

60.7%

Age (yrs) 21Tests 336Avg Mileage 84,217Top Failure Brakes — 47.3%

MOT results for 2003 MG Zs by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	6	60.7%	4,992	54,771	Lamps, Reflectors and Electrical Equipment — 19.9%
2010	7	58.3%	4,709	62,867	Brakes — 23.1%
2011	8	54.1%	4,534	68,328	Brakes — 26.4%
2012	9	50.0%	4,154	74,035	Brakes — 31.1%
2013	10	46.0%	3,634	78,225	Brakes — 87.8%
2014	11	44.4%	2,986	83,345	Brakes — 99.2%
2015	12	46.3%	2,438	84,944	Brakes — 90.1%
2016	13	46.7%	1,909	87,298	Brakes — 85.1%
2017	14	47.3%	1,387	89,117	Brakes — 96.1%
2018	15	48.0%	681	89,238	Brakes — 87.8%
2019	16	53.3%	552	88,799	Brakes — 82.4%
2020	17	57.8%	405	87,556	Brakes — 77.8%
2021	18	52.1%	430	87,530	Brakes — 83.3%
2022	19	57.6%	304	86,229	Brakes — 74.7%
2023	20	56.3%	320	85,592	Brakes — 89.7%
2024	21	60.7%	336	84,217	Brakes — 47.3%

Common MOT Failures

Top failure categories across all test years for 2003 MG Zs, with age trends.

Brakes

68.9%

↑ Increases with age

Suspension

50.1%

↑ Increases with age

Body, chassis, structure

36.3%

— Consistent

Lamps, Reflectors and Electrical Equipment

34.0%

↑ Increases with age

Lamps, reflectors and electrical equipment

30.6%

↓ 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
Brakes	19.8% (6 yrs)	47.3% (21 yrs)	+27.5%	🔴 ↑
Tyres	15.4% (6 yrs)	19.6% (21 yrs)	+4.2%	🔴 ↑

Other Manufacture Years

2001 2002 2003 2004 2005 2006 2017 2018 2019 2020 2021

← Back to MG Zs overview

Looking for the best year to buy? See the full comparison on the MG Zs page →

About This Data

This page shows how MG Zs cars manufactured in 2003 perform at MOT as they age. Data spans from 2009 to 2024, covering 33,771 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.