2005 MG Zs — MOT History by Age

How cars manufactured in 2005 perform at MOT as they age

21 years

Current Age

64.1%

Latest Pass Rate

15,885

Total Tests (All Years)

89,474 mi

Avg Mileage (Latest)

Data from official DVSA MOT testing records

Compared to Average at Age 19

This car: 64.1%

Average: 55.4%

✅ 8.7% above average (7550 models compared)

How This Car Ages

Pass rate progression for the 2005 MG Zs as it ages.

4 yrs69.4%

→ ↓5.0%

5 yrs64.4%

→ ↓2.8%

6 yrs61.6%

→ ↓2.8%

7 yrs58.8%

→ ↓4.8%

8 yrs54.0%

→ ↓2.4%

9 yrs51.6%

→ ↑2.2%

10 yrs53.8%

→ ↓0.9%

11 yrs52.9%

→ ↑1.9%

12 yrs54.8%

→ ↑0.8%

13 yrs55.6%

→ ↓2.3%

14 yrs53.3%

→ ↑2.0%

15 yrs55.3%

→ ↑2.8%

16 yrs58.1%

→ ↑1.5%

17 yrs59.6%

→ ↑2.6%

18 yrs62.2%

→ ↑1.9%

19 yrs64.1%

📊 View as table

Age	Pass Rate	Tests
4 yrs	69.4%	1,816
5 yrs	64.4%	1,715
6 yrs	61.6%	1,733
7 yrs	58.8%	1,666
8 yrs	54.0%	1,584
9 yrs	51.6%	1,453
10 yrs	53.8%	1,291
11 yrs	52.9%	1,119
12 yrs	54.8%	919
13 yrs	55.6%	527
14 yrs	53.3%	448
15 yrs	55.3%	356
16 yrs	58.1%	382
17 yrs	59.6%	287
18 yrs	62.2%	291
19 yrs	64.1%	298

Pass Rate Trend

How the 2005 MG Zs pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2024 (19 yrs)	64.1%	298
2023 (18 yrs)	62.2%	291
2022 (17 yrs)	59.6%	287
2021 (16 yrs)	58.1%	382
2020 (15 yrs)	55.3%	356
2019 (14 yrs)	53.3%	448
2018 (13 yrs)	55.6%	527
2017 (12 yrs)	54.8%	919
2016 (11 yrs)	52.9%	1,119
2015 (10 yrs)	53.8%	1,291
2014 (9 yrs)	51.6%	1,453
2013 (8 yrs)	54%	1,584
2012 (7 yrs)	58.8%	1,666
2011 (6 yrs)	61.6%	1,733
2010 (5 yrs)	64.4%	1,715
2009 (4 yrs)	69.4%	1,816

Year-by-Year MOT Results

2009

69.4%

Age (yrs) 4Tests 1,816Avg Mileage 36,918Top Failure Lamps, Reflectors and Electrical Equipment — 16.6%

2010High Fail Rate

64.4%

Age (yrs) 5Tests 1,715Avg Mileage 44,476Top Failure Lamps, Reflectors and Electrical Equipment — 20.1%

2011High Fail Rate

61.6%

Age (yrs) 6Tests 1,733Avg Mileage 51,867Top Failure Lamps, Reflectors and Electrical Equipment — 23.3%

2012High Fail Rate

58.8%

Age (yrs) 7Tests 1,666Avg Mileage 57,723Top Failure Lamps, Reflectors and Electrical Equipment — 25.0%

2013High Fail Rate

54.0%

Age (yrs) 8Tests 1,584Avg Mileage 64,389Top Failure Lamps, Reflectors and Electrical Equipment — 49.7%

2014High Fail Rate

51.6%

Age (yrs) 9Tests 1,453Avg Mileage 70,004Top Failure Lamps, Reflectors and Electrical Equipment — 54.0%

2015High Fail Rate

53.8%

Age (yrs) 10Tests 1,291Avg Mileage 74,346Top Failure Lamps, Reflectors and Electrical Equipment — 56.9%

2016High Fail Rate

52.9%

Age (yrs) 11Tests 1,119Avg Mileage 80,063Top Failure Lamps, Reflectors and Electrical Equipment — 53.4%

2017High Fail Rate

54.8%

Age (yrs) 12Tests 919Avg Mileage 82,702Top Failure Lamps, Reflectors and Electrical Equipment — 56.9%

2018High Fail Rate

55.6%

Age (yrs) 13Tests 527Avg Mileage 84,975Top Failure Brakes — 53.1%

2019High Fail Rate

53.3%

Age (yrs) 14Tests 448Avg Mileage 87,880Top Failure Brakes — 56.3%

2020High Fail Rate

55.3%

Age (yrs) 15Tests 356Avg Mileage 89,513Top Failure Brakes — 52.5%

2021High Fail Rate

58.1%

Age (yrs) 16Tests 382Avg Mileage 89,687Top Failure Brakes — 64.7%

2022High Fail Rate

59.6%

Age (yrs) 17Tests 287Avg Mileage 92,856Top Failure Lamps, reflectors and electrical equipment — 56.4%

2023High Fail Rate

62.2%

Age (yrs) 18Tests 291Avg Mileage 91,797Top Failure Lamps, reflectors and electrical equipment — 46.4%

2024High Fail Rate

64.1%

Age (yrs) 19Tests 298Avg Mileage 89,474Top Failure Suspension — 47.7%

MOT results for 2005 MG Zs by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	4	69.4%	1,816	36,918	Lamps, Reflectors and Electrical Equipment — 16.6%
2010	5	64.4%	1,715	44,476	Lamps, Reflectors and Electrical Equipment — 20.1%
2011	6	61.6%	1,733	51,867	Lamps, Reflectors and Electrical Equipment — 23.3%
2012	7	58.8%	1,666	57,723	Lamps, Reflectors and Electrical Equipment — 25.0%
2013	8	54.0%	1,584	64,389	Lamps, Reflectors and Electrical Equipment — 49.7%
2014	9	51.6%	1,453	70,004	Lamps, Reflectors and Electrical Equipment — 54.0%
2015	10	53.8%	1,291	74,346	Lamps, Reflectors and Electrical Equipment — 56.9%
2016	11	52.9%	1,119	80,063	Lamps, Reflectors and Electrical Equipment — 53.4%
2017	12	54.8%	919	82,702	Lamps, Reflectors and Electrical Equipment — 56.9%
2018	13	55.6%	527	84,975	Brakes — 53.1%
2019	14	53.3%	448	87,880	Brakes — 56.3%
2020	15	55.3%	356	89,513	Brakes — 52.5%
2021	16	58.1%	382	89,687	Brakes — 64.7%
2022	17	59.6%	287	92,856	Lamps, reflectors and electrical equipment — 56.4%
2023	18	62.2%	291	91,797	Lamps, reflectors and electrical equipment — 46.4%
2024	19	64.1%	298	89,474	Suspension — 47.7%

Common MOT Failures

Top failure categories across all test years for 2005 MG Zs, with age trends.

Lamps, reflectors and electrical equipment

42.9%

↓ Decreases with age

Brakes

39.7%

↑ Increases with age

Lamps, Reflectors and Electrical Equipment

38.1%

↑ Increases with age

Suspension

37.8%

↑ Increases with age

Body, chassis, structure

31.9%

↓ 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	11.2% (4 yrs)	31.5% (19 yrs)	+20.3%	🔴 ↑
Tyres	13.1% (4 yrs)	14.8% (19 yrs)	+1.7%	⚪ —

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 2005 perform at MOT as they age. Data spans from 2009 to 2024, covering 15,885 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.