2004 MG Zt — MOT History by Age

How cars manufactured in 2004 perform at MOT as they age

22 years

Current Age

77.5%

Latest Pass Rate

30,387

Total Tests (All Years)

72,206 mi

Avg Mileage (Latest)

Data from official DVSA MOT testing records

Best vintage for Zt

Compared to Average at Age 20

This car: 77.5%

Average: 56.6%

✅ 20.9% above average (6824 models compared)

How This Car Ages

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

5 yrs67.2%

→ ↓3.9%

6 yrs63.3%

→ ↓3.6%

7 yrs59.7%

→ ↓4.0%

8 yrs55.7%

→ ↓3.6%

9 yrs52.1%

→ ↓1.0%

10 yrs51.1%

→ ↑1.5%

11 yrs52.6%

→ ↑0.5%

12 yrs53.1%

→ ↑1.2%

13 yrs54.3%

→ ↑1.6%

14 yrs55.9%

→ ↑3.8%

15 yrs59.7%

→ ↑2.2%

16 yrs61.9%

→ ↑0.2%

17 yrs62.1%

→ ↑1.1%

18 yrs63.2%

→ ↑1.0%

19 yrs64.2%

→ ↑13.3%

20 yrs77.5%

📊 View as table

Age	Pass Rate	Tests
5 yrs	67.2%	3,508
6 yrs	63.3%	3,392
7 yrs	59.7%	3,414
8 yrs	55.7%	3,219
9 yrs	52.1%	3,021
10 yrs	51.1%	2,746
11 yrs	52.6%	2,390
12 yrs	53.1%	2,049
13 yrs	54.3%	1,716
14 yrs	55.9%	943
15 yrs	59.7%	799
16 yrs	61.9%	703
17 yrs	62.1%	742
18 yrs	63.2%	532
19 yrs	64.2%	592
20 yrs	77.5%	621

Pass Rate Trend

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

📊 View as table

Built	Pass Rate	Tests
2024 (20 yrs)	77.5%	621
2023 (19 yrs)	64.2%	592
2022 (18 yrs)	63.2%	532
2021 (17 yrs)	62.1%	742
2020 (16 yrs)	61.9%	703
2019 (15 yrs)	59.7%	799
2018 (14 yrs)	55.9%	943
2017 (13 yrs)	54.3%	1,716
2016 (12 yrs)	53.1%	2,049
2015 (11 yrs)	52.6%	2,390
2014 (10 yrs)	51.1%	2,746
2013 (9 yrs)	52.1%	3,021
2012 (8 yrs)	55.7%	3,219
2011 (7 yrs)	59.7%	3,414
2010 (6 yrs)	63.3%	3,392
2009 (5 yrs)	67.2%	3,508

Year-by-Year MOT Results

2009

67.2%

Age (yrs) 5Tests 3,508Avg Mileage 55,216Top Failure Lamps, Reflectors and Electrical Equipment — 17.3%

2010High Fail Rate

63.3%

Age (yrs) 6Tests 3,392Avg Mileage 63,281Top Failure Brakes — 19.6%

2011High Fail Rate

59.7%

Age (yrs) 7Tests 3,414Avg Mileage 70,226Top Failure Brakes — 21.5%

2012High Fail Rate

55.7%

Age (yrs) 8Tests 3,219Avg Mileage 76,903Top Failure Brakes — 25.1%

2013High Fail Rate

52.1%

Age (yrs) 9Tests 3,021Avg Mileage 84,057Top Failure Brakes — 74.3%

2014High Fail Rate

51.1%

Age (yrs) 10Tests 2,746Avg Mileage 89,473Top Failure Brakes — 79.8%

2015High Fail Rate

52.6%

Age (yrs) 11Tests 2,390Avg Mileage 95,017Top Failure Brakes — 76.5%

2016High Fail Rate

53.1%

Age (yrs) 12Tests 2,049Avg Mileage 98,361Top Failure Brakes — 75.8%

2017High Fail Rate

54.3%

Age (yrs) 13Tests 1,716Avg Mileage 100,014Top Failure Brakes — 77.4%

2018High Fail Rate

55.9%

Age (yrs) 14Tests 943Avg Mileage 99,680Top Failure Brakes — 81.5%

2019High Fail Rate

59.7%

Age (yrs) 15Tests 799Avg Mileage 101,097Top Failure Brakes — 69.2%

2020High Fail Rate

61.9%

Age (yrs) 16Tests 703Avg Mileage 103,348Top Failure Brakes — 69.3%

2021High Fail Rate

62.1%

Age (yrs) 17Tests 742Avg Mileage 104,137Top Failure Brakes — 59.8%

2022High Fail Rate

63.2%

Age (yrs) 18Tests 532Avg Mileage 101,009Top Failure Brakes — 66.4%

2023High Fail Rate

64.2%

Age (yrs) 19Tests 592Avg Mileage 104,488Top Failure Brakes — 61.8%

2024

77.5%

Age (yrs) 20Tests 621Avg Mileage 72,206Top Failure Suspension — 31.2%

MOT results for 2004 MG Zt by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	5	67.2%	3,508	55,216	Lamps, Reflectors and Electrical Equipment — 17.3%
2010	6	63.3%	3,392	63,281	Brakes — 19.6%
2011	7	59.7%	3,414	70,226	Brakes — 21.5%
2012	8	55.7%	3,219	76,903	Brakes — 25.1%
2013	9	52.1%	3,021	84,057	Brakes — 74.3%
2014	10	51.1%	2,746	89,473	Brakes — 79.8%
2015	11	52.6%	2,390	95,017	Brakes — 76.5%
2016	12	53.1%	2,049	98,361	Brakes — 75.8%
2017	13	54.3%	1,716	100,014	Brakes — 77.4%
2018	14	55.9%	943	99,680	Brakes — 81.5%
2019	15	59.7%	799	101,097	Brakes — 69.2%
2020	16	61.9%	703	103,348	Brakes — 69.3%
2021	17	62.1%	742	104,137	Brakes — 59.8%
2022	18	63.2%	532	101,009	Brakes — 66.4%
2023	19	64.2%	592	104,488	Brakes — 61.8%
2024	20	77.5%	621	72,206	Suspension — 31.2%

Common MOT Failures

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

Brakes

56.6%

↑ Increases with age

Suspension

36.0%

↑ Increases with age

Lamps, Reflectors and Electrical Equipment

30.9%

— Consistent

Lamps, reflectors and electrical equipment

30.1%

↓ Decreases with age

Tyres

21.3%

— Consistent

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

Category	At Youngest	At Oldest	Change	Trend
Suspension	5.0% (5 yrs)	31.2% (20 yrs)	+26.2%	🔴 ↑
Brakes	16.7% (5 yrs)	30.1% (20 yrs)	+13.4%	🔴 ↑
Tyres	12.1% (5 yrs)	10.6% (20 yrs)	-1.5%	⚪ —

Other Manufacture Years

2001 2002 2003 2004 2005 2006 2007

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About This Data

This page shows how MG Zt cars manufactured in 2004 perform at MOT as they age. Data spans from 2009 to 2024, covering 30,387 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.