2004 MG Zr — MOT History by Age

How cars manufactured in 2004 perform at MOT as they age

22 years

Current Age

61.0%

Latest Pass Rate

95,560

Total Tests (All Years)

81,973 mi

Avg Mileage (Latest)

Data from official DVSA MOT testing records

Compared to Average at Age 20

This car: 61.0%

Average: 56.6%

✅ 4.4% above average (6824 models compared)

How This Car Ages

Pass rate progression for the 2004 MG Zr as it ages.

5 yrs63.3%

→ ↓5.1%

6 yrs58.2%

→ ↓5.7%

7 yrs52.5%

→ ↓1.6%

8 yrs50.9%

→ ↓2.1%

9 yrs48.8%

→ ↓0.5%

10 yrs48.3%

→ ↑2.3%

11 yrs50.6%

→ ↓0.5%

12 yrs50.1%

→ ↓0.0%

13 yrs50.1%

→ ↑0.9%

14 yrs51.0%

→ ↑5.4%

15 yrs56.4%

→ ↓0.0%

16 yrs56.4%

→ ↑2.9%

17 yrs59.3%

→ ↑3.6%

18 yrs62.9%

→ ↓2.0%

19 yrs60.9%

→ ↑0.1%

20 yrs61.0%

📊 View as table

Age	Pass Rate	Tests
5 yrs	63.3%	13,147
6 yrs	58.2%	12,631
7 yrs	52.5%	12,442
8 yrs	50.9%	11,652
9 yrs	48.8%	10,763
10 yrs	48.3%	9,299
11 yrs	50.6%	7,615
12 yrs	50.1%	5,836
13 yrs	50.1%	4,206
14 yrs	51.0%	1,965
15 yrs	56.4%	1,483
16 yrs	56.4%	1,078
17 yrs	59.3%	1,143
18 yrs	62.9%	760
19 yrs	60.9%	815
20 yrs	61.0%	725

Pass Rate Trend

How the 2004 MG Zr pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2024 (20 yrs)	61%	725
2023 (19 yrs)	60.9%	815
2022 (18 yrs)	62.9%	760
2021 (17 yrs)	59.3%	1,143
2020 (16 yrs)	56.4%	1,078
2019 (15 yrs)	56.4%	1,483
2018 (14 yrs)	51%	1,965
2017 (13 yrs)	50.1%	4,206
2016 (12 yrs)	50.1%	5,836
2015 (11 yrs)	50.6%	7,615
2014 (10 yrs)	48.3%	9,299
2013 (9 yrs)	48.8%	10,763
2012 (8 yrs)	50.9%	11,652
2011 (7 yrs)	52.5%	12,442
2010 (6 yrs)	58.2%	12,631
2009 (5 yrs)	63.3%	13,147

Year-by-Year MOT Results

2009High Fail Rate

63.3%

Age (yrs) 5Tests 13,147Avg Mileage 42,183Top Failure Lamps, Reflectors and Electrical Equipment — 22.7%

2010High Fail Rate

58.2%

Age (yrs) 6Tests 12,631Avg Mileage 49,335Top Failure Lamps, Reflectors and Electrical Equipment — 26.0%

2011High Fail Rate

52.5%

Age (yrs) 7Tests 12,442Avg Mileage 56,548Top Failure Lamps, Reflectors and Electrical Equipment — 28.9%

2012High Fail Rate

50.9%

Age (yrs) 8Tests 11,652Avg Mileage 62,747Top Failure Lamps, Reflectors and Electrical Equipment — 31.1%

2013High Fail Rate

48.8%

Age (yrs) 9Tests 10,763Avg Mileage 67,830Top Failure Lamps, Reflectors and Electrical Equipment — 66.7%

2014High Fail Rate

48.3%

Age (yrs) 10Tests 9,299Avg Mileage 72,810Top Failure Lamps, Reflectors and Electrical Equipment — 71.2%

2015High Fail Rate

50.6%

Age (yrs) 11Tests 7,615Avg Mileage 76,974Top Failure Lamps, Reflectors and Electrical Equipment — 66.9%

2016High Fail Rate

50.1%

Age (yrs) 12Tests 5,836Avg Mileage 79,778Top Failure Lamps, Reflectors and Electrical Equipment — 67.5%

2017High Fail Rate

50.1%

Age (yrs) 13Tests 4,206Avg Mileage 81,171Top Failure Lamps, Reflectors and Electrical Equipment — 66.8%

2018High Fail Rate

51.0%

Age (yrs) 14Tests 1,965Avg Mileage 80,234Top Failure Lamps, reflectors and electrical equipment — 33.3%

2019High Fail Rate

56.4%

Age (yrs) 15Tests 1,483Avg Mileage 80,537Top Failure Lamps, reflectors and electrical equipment — 53.5%

2020High Fail Rate

56.4%

Age (yrs) 16Tests 1,078Avg Mileage 80,708Top Failure Lamps, reflectors and electrical equipment — 53.6%

2021High Fail Rate

59.3%

Age (yrs) 17Tests 1,143Avg Mileage 81,887Top Failure Lamps, reflectors and electrical equipment — 48.9%

2022High Fail Rate

62.9%

Age (yrs) 18Tests 760Avg Mileage 82,080Top Failure Lamps, reflectors and electrical equipment — 44.1%

2023High Fail Rate

60.9%

Age (yrs) 19Tests 815Avg Mileage 82,607Top Failure Lamps, reflectors and electrical equipment — 46.7%

2024High Fail Rate

61.0%

Age (yrs) 20Tests 725Avg Mileage 81,973Top Failure Suspension — 38.3%

MOT results for 2004 MG Zr by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	5	63.3%	13,147	42,183	Lamps, Reflectors and Electrical Equipment — 22.7%
2010	6	58.2%	12,631	49,335	Lamps, Reflectors and Electrical Equipment — 26.0%
2011	7	52.5%	12,442	56,548	Lamps, Reflectors and Electrical Equipment — 28.9%
2012	8	50.9%	11,652	62,747	Lamps, Reflectors and Electrical Equipment — 31.1%
2013	9	48.8%	10,763	67,830	Lamps, Reflectors and Electrical Equipment — 66.7%
2014	10	48.3%	9,299	72,810	Lamps, Reflectors and Electrical Equipment — 71.2%
2015	11	50.6%	7,615	76,974	Lamps, Reflectors and Electrical Equipment — 66.9%
2016	12	50.1%	5,836	79,778	Lamps, Reflectors and Electrical Equipment — 67.5%
2017	13	50.1%	4,206	81,171	Lamps, Reflectors and Electrical Equipment — 66.8%
2018	14	51.0%	1,965	80,234	Lamps, reflectors and electrical equipment — 33.3%
2019	15	56.4%	1,483	80,537	Lamps, reflectors and electrical equipment — 53.5%
2020	16	56.4%	1,078	80,708	Lamps, reflectors and electrical equipment — 53.6%
2021	17	59.3%	1,143	81,887	Lamps, reflectors and electrical equipment — 48.9%
2022	18	62.9%	760	82,080	Lamps, reflectors and electrical equipment — 44.1%
2023	19	60.9%	815	82,607	Lamps, reflectors and electrical equipment — 46.7%
2024	20	61.0%	725	81,973	Suspension — 38.3%

Common MOT Failures

Top failure categories across all test years for 2004 MG Zr, with age trends.

Lamps, Reflectors and Electrical Equipment

47.7%

↑ Increases with age

Lamps, reflectors and electrical equipment

45.5%

↑ Increases with age

Body, chassis, structure

31.3%

— Consistent

Suspension

30.2%

↑ Increases with age

Brakes

27.5%

↑ Increases 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	10.7% (5 yrs)	30.6% (20 yrs)	+19.9%	🔴 ↑

Other Manufacture Years

2001 2002 2003 2004 2005 2006

← Back to MG Zr overview

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

About This Data

This page shows how MG Zr cars manufactured in 2004 perform at MOT as they age. Data spans from 2009 to 2024, covering 95,560 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.