2004 MG Zt-t — MOT History by Age

How cars manufactured in 2004 perform at MOT as they age

22 years

Current Age

72.6%

Latest Pass Rate

13,980

Total Tests (All Years)

127,503 mi

Avg Mileage (Latest)

Data from official DVSA MOT testing records

Best vintage for Zt-t

Compared to Average at Age 20

This car: 72.6%

Average: 56.6%

✅ 16.0% above average (6824 models compared)

How This Car Ages

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

5 yrs69.1%

→ ↓3.5%

6 yrs65.6%

→ ↓2.3%

7 yrs63.3%

→ ↓4.3%

8 yrs59.0%

→ ↓5.8%

9 yrs53.2%

→ ↓2.5%

10 yrs50.7%

→ ↑2.4%

11 yrs53.1%

→ ↓1.2%

12 yrs51.9%

→ ↑2.1%

13 yrs54.0%

→ ↓2.0%

14 yrs52.0%

→ ↑0.1%

15 yrs52.1%

→ ↑4.0%

16 yrs56.1%

→ ↓0.2%

17 yrs55.9%

→ ↑3.1%

18 yrs59.0%

→ ↓1.4%

19 yrs57.6%

→ ↑15.0%

20 yrs72.6%

📊 View as table

Age	Pass Rate	Tests
5 yrs	69.1%	1,459
6 yrs	65.6%	1,429
7 yrs	63.3%	1,409
8 yrs	59.0%	1,356
9 yrs	53.2%	1,298
10 yrs	50.7%	1,212
11 yrs	53.1%	1,127
12 yrs	51.9%	996
13 yrs	54.0%	858
14 yrs	52.0%	556
15 yrs	52.1%	459
16 yrs	56.1%	403
17 yrs	55.9%	444
18 yrs	59.0%	305
19 yrs	57.6%	344
20 yrs	72.6%	325

Pass Rate Trend

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

📊 View as table

Built	Pass Rate	Tests
2024 (20 yrs)	72.6%	325
2023 (19 yrs)	57.6%	344
2022 (18 yrs)	59%	305
2021 (17 yrs)	55.9%	444
2020 (16 yrs)	56.1%	403
2019 (15 yrs)	52.1%	459
2018 (14 yrs)	52%	556
2017 (13 yrs)	54%	858
2016 (12 yrs)	51.9%	996
2015 (11 yrs)	53.1%	1,127
2014 (10 yrs)	50.7%	1,212
2013 (9 yrs)	53.2%	1,298
2012 (8 yrs)	59%	1,356
2011 (7 yrs)	63.3%	1,409
2010 (6 yrs)	65.6%	1,429
2009 (5 yrs)	69.1%	1,459

Year-by-Year MOT Results

2009

69.1%

Age (yrs) 5Tests 1,459Avg Mileage 60,707Top Failure Brakes — 14.9%

2010

65.6%

Age (yrs) 6Tests 1,429Avg Mileage 69,758Top Failure Lamps, Reflectors and Electrical Equipment — 17.1%

2011High Fail Rate

63.3%

Age (yrs) 7Tests 1,409Avg Mileage 78,585Top Failure Lamps, Reflectors and Electrical Equipment — 18.9%

2012High Fail Rate

59.0%

Age (yrs) 8Tests 1,356Avg Mileage 87,059Top Failure Brakes — 24.2%

2013High Fail Rate

53.2%

Age (yrs) 9Tests 1,298Avg Mileage 92,938Top Failure Brakes — 70.8%

2014High Fail Rate

50.7%

Age (yrs) 10Tests 1,212Avg Mileage 100,673Top Failure Brakes — 76.9%

2015High Fail Rate

53.1%

Age (yrs) 11Tests 1,127Avg Mileage 110,409Top Failure Brakes — 78.3%

2016High Fail Rate

51.9%

Age (yrs) 12Tests 996Avg Mileage 113,498Top Failure Brakes — 73.8%

2017High Fail Rate

54.0%

Age (yrs) 13Tests 858Avg Mileage 115,742Top Failure Brakes — 71.6%

2018High Fail Rate

52.0%

Age (yrs) 14Tests 556Avg Mileage 121,850Top Failure Brakes — 87.2%

2019High Fail Rate

52.1%

Age (yrs) 15Tests 459Avg Mileage 119,288Top Failure Brakes — 73.9%

2020High Fail Rate

56.1%

Age (yrs) 16Tests 403Avg Mileage 126,270Top Failure Brakes — 78.7%

2021High Fail Rate

55.9%

Age (yrs) 17Tests 444Avg Mileage 121,875Top Failure Brakes — 69.6%

2022High Fail Rate

59.0%

Age (yrs) 18Tests 305Avg Mileage 123,425Top Failure Suspension — 68.2%

2023High Fail Rate

57.6%

Age (yrs) 19Tests 344Avg Mileage 121,296Top Failure Brakes — 74.7%

2024

72.6%

Age (yrs) 20Tests 325Avg Mileage 127,503Top Failure Brakes — 36.0%

MOT results for 2004 MG Zt-t by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	5	69.1%	1,459	60,707	Brakes — 14.9%
2010	6	65.6%	1,429	69,758	Lamps, Reflectors and Electrical Equipment — 17.1%
2011	7	63.3%	1,409	78,585	Lamps, Reflectors and Electrical Equipment — 18.9%
2012	8	59.0%	1,356	87,059	Brakes — 24.2%
2013	9	53.2%	1,298	92,938	Brakes — 70.8%
2014	10	50.7%	1,212	100,673	Brakes — 76.9%
2015	11	53.1%	1,127	110,409	Brakes — 78.3%
2016	12	51.9%	996	113,498	Brakes — 73.8%
2017	13	54.0%	858	115,742	Brakes — 71.6%
2018	14	52.0%	556	121,850	Brakes — 87.2%
2019	15	52.1%	459	119,288	Brakes — 73.9%
2020	16	56.1%	403	126,270	Brakes — 78.7%
2021	17	55.9%	444	121,875	Brakes — 69.6%
2022	18	59.0%	305	123,425	Suspension — 68.2%
2023	19	57.6%	344	121,296	Brakes — 74.7%
2024	20	72.6%	325	127,503	Brakes — 36.0%

Common MOT Failures

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

Brakes

58.3%

↑ Increases with age

Suspension

43.1%

↑ Increases with age

Lamps, reflectors and electrical equipment

40.2%

— Consistent

Lamps, Reflectors and Electrical Equipment

33.8%

↑ Increases with age

Tyres

23.6%

— Consistent

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

Category	At Youngest	At Oldest	Change	Trend
Suspension	5.3% (5 yrs)	32.9% (20 yrs)	+27.6%	🔴 ↑
Brakes	14.9% (5 yrs)	36.0% (20 yrs)	+21.1%	🔴 ↑
Tyres	13.6% (5 yrs)	16.3% (20 yrs)	+2.7%	🔴 ↑

Other Manufacture Years

2001 2002 2003 2004 2005 2006

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About This Data

This page shows how MG Zt-t cars manufactured in 2004 perform at MOT as they age. Data spans from 2009 to 2024, covering 13,980 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.