1999 Mercedes Unclassified — MOT History by Age

How cars manufactured in 1999 perform at MOT as they age

27 years

Current Age

66.7%

Latest Pass Rate

2,772

Total Tests (All Years)

146,642 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 1999 Mercedes Unclassified as it ages.

10 yrs58.0%

→ ↓3.6%

11 yrs54.4%

→ ↑1.4%

12 yrs55.8%

→ ↑4.6%

13 yrs60.4%

→ ↑2.3%

14 yrs62.7%

→ ↑4.2%

15 yrs66.9%

→ ↓7.3%

16 yrs59.6%

→ ↓3.5%

17 yrs56.1%

→ ↓3.2%

18 yrs52.9%

→ ↑5.7%

19 yrs58.6%

→ ↑2.7%

20 yrs61.3%

→ ↑1.4%

21 yrs62.7%

→ ↓2.1%

22 yrs60.6%

→ ↑5.5%

23 yrs66.1%

→ ↑3.3%

24 yrs69.4%

→ ↓2.7%

25 yrs66.7%

📊 View as table

Age	Pass Rate	Tests
10 yrs	58.0%	548
11 yrs	54.4%	467
12 yrs	55.8%	382
13 yrs	60.4%	268
14 yrs	62.7%	169
15 yrs	66.9%	118
16 yrs	59.6%	109
17 yrs	56.1%	114
18 yrs	52.9%	104
19 yrs	58.6%	70
20 yrs	61.3%	62
21 yrs	62.7%	51
22 yrs	60.6%	66
23 yrs	66.1%	59
24 yrs	69.4%	62
25 yrs	66.7%	123

Pass Rate Trend

How the 1999 Mercedes Unclassified pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2024 (25 yrs)	66.7%	123
2023 (24 yrs)	69.4%	62
2022 (23 yrs)	66.1%	59
2021 (22 yrs)	60.6%	66
2020 (21 yrs)	62.7%	51
2019 (20 yrs)	61.3%	62
2018 (19 yrs)	58.6%	70
2017 (18 yrs)	52.9%	104
2016 (17 yrs)	56.1%	114
2015 (16 yrs)	59.6%	109
2014 (15 yrs)	66.9%	118
2013 (14 yrs)	62.7%	169
2012 (13 yrs)	60.4%	268
2011 (12 yrs)	55.8%	382
2010 (11 yrs)	54.4%	467
2009 (10 yrs)	58%	548

Year-by-Year MOT Results

2009High Fail Rate

58.0%

Age (yrs) 10Tests 548Avg Mileage 131,386Top Failure Lamps, Reflectors and Electrical Equipment — 27.4%

2010High Fail Rate

54.4%

Age (yrs) 11Tests 467Avg Mileage 136,675Top Failure Lamps, Reflectors and Electrical Equipment — 32.5%

2011High Fail Rate

55.8%

Age (yrs) 12Tests 382Avg Mileage 135,825Top Failure Lamps, Reflectors and Electrical Equipment — 33.2%

2012High Fail Rate

60.4%

Age (yrs) 13Tests 268Avg Mileage 135,182Top Failure Lamps, Reflectors and Electrical Equipment — 26.9%

2013High Fail Rate

62.7%

Age (yrs) 14Tests 169Avg Mileage 124,410Top Failure Lamps, Reflectors and Electrical Equipment — 58.0%

2014

66.9%

Age (yrs) 15Tests 118Avg Mileage 130,459Top Failure Brakes — 53.4%

2015High Fail Rate

59.6%

Age (yrs) 16Tests 109Avg Mileage 158,966Top Failure Lamps, Reflectors and Electrical Equipment — 61.5%

2016High Fail Rate

56.1%

Age (yrs) 17Tests 114Avg Mileage 175,208Top Failure Lamps, Reflectors and Electrical Equipment — 61.4%

2017High Fail Rate

52.9%

Age (yrs) 18Tests 104Avg Mileage 170,819Top Failure Lamps, Reflectors and Electrical Equipment — 63.5%

2018High Fail Rate

58.6%

Age (yrs) 19Tests 70Avg Mileage 165,155Top Failure Brakes — 61.4%

2019High Fail Rate

61.3%

Age (yrs) 20Tests 62Avg Mileage 151,805Top Failure Brakes — 104.8%

2020High Fail Rate

62.7%

Age (yrs) 21Tests 51Avg Mileage 156,562Top Failure Lamps, reflectors and electrical equipment — 60.8%

2021High Fail Rate

60.6%

Age (yrs) 22Tests 66Avg Mileage 185,937Top Failure Brakes — 75.8%

2022

66.1%

Age (yrs) 23Tests 59Avg Mileage 145,972Top Failure Lamps, reflectors and electrical equipment — 54.2%

2023

69.4%

Age (yrs) 24Tests 62Avg Mileage 123,859Top Failure Brakes — 40.3%

2024

66.7%

Age (yrs) 25Tests 123Avg Mileage 146,642Top Failure Lamps, reflectors and electrical equipment — 56.9%

MOT results for 1999 Mercedes Unclassified by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	10	58.0%	548	131,386	Lamps, Reflectors and Electrical Equipment — 27.4%
2010	11	54.4%	467	136,675	Lamps, Reflectors and Electrical Equipment — 32.5%
2011	12	55.8%	382	135,825	Lamps, Reflectors and Electrical Equipment — 33.2%
2012	13	60.4%	268	135,182	Lamps, Reflectors and Electrical Equipment — 26.9%
2013	14	62.7%	169	124,410	Lamps, Reflectors and Electrical Equipment — 58.0%
2014	15	66.9%	118	130,459	Brakes — 53.4%
2015	16	59.6%	109	158,966	Lamps, Reflectors and Electrical Equipment — 61.5%
2016	17	56.1%	114	175,208	Lamps, Reflectors and Electrical Equipment — 61.4%
2017	18	52.9%	104	170,819	Lamps, Reflectors and Electrical Equipment — 63.5%
2018	19	58.6%	70	165,155	Brakes — 61.4%
2019	20	61.3%	62	151,805	Brakes — 104.8%
2020	21	62.7%	51	156,562	Lamps, reflectors and electrical equipment — 60.8%
2021	22	60.6%	66	185,937	Brakes — 75.8%
2022	23	66.1%	59	145,972	Lamps, reflectors and electrical equipment — 54.2%
2023	24	69.4%	62	123,859	Brakes — 40.3%
2024	25	66.7%	123	146,642	Lamps, reflectors and electrical equipment — 56.9%

Common MOT Failures

Top failure categories across all test years for 1999 Mercedes Unclassified, with age trends.

Brakes

47.9%

↑ Increases with age

Lamps, reflectors and electrical equipment

47.7%

↑ Increases with age

Lamps, Reflectors and Electrical Equipment

44.4%

— Consistent

Suspension

29.0%

↑ Increases with age

Steering

24.5%

↑ 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	21.2% (10 yrs)	40.7% (25 yrs)	+19.5%	🔴 ↑
Tyres	12.2% (10 yrs)	21.1% (25 yrs)	+8.9%	🔴 ↑

Other Manufacture Years

Looking for the best year to buy? See the full comparison on the Mercedes Unclassified page →

About This Data

This page shows how Mercedes Unclassified cars manufactured in 1999 perform at MOT as they age. Data spans from 2009 to 2024, covering 2,772 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.