2004 Mercedes Unclassified — MOT History by Age

How cars manufactured in 2004 perform at MOT as they age

22 years

Current Age

68.9%

Latest Pass Rate

2,506

Total Tests (All Years)

109,613 mi

Avg Mileage (Latest)

Data from official DVSA MOT testing records

Compared to Average at Age 20

This car: 68.9%

Average: 56.6%

✅ 12.3% above average (6824 models compared)

How This Car Ages

Pass rate progression for the 2004 Mercedes Unclassified as it ages.

5 yrs63.7%

→ ↓5.8%

6 yrs57.9%

→ ↑2.3%

7 yrs60.2%

→ ↓1.8%

8 yrs58.4%

→ ↓1.4%

9 yrs57.0%

→ ↑6.6%

10 yrs63.6%

→ ↑17.2%

11 yrs80.8%

→ ↓10.0%

12 yrs70.8%

→ ↓5.2%

13 yrs65.6%

→ ↓2.4%

14 yrs63.2%

→ ↑9.2%

15 yrs72.4%

→ ↓1.9%

16 yrs70.5%

→ ↓8.2%

17 yrs62.3%

→ ↑6.6%

18 yrs68.9%

→ ↑1.2%

19 yrs70.1%

→ ↓1.2%

20 yrs68.9%

📊 View as table

Age	Pass Rate	Tests
5 yrs	63.7%	347
6 yrs	57.9%	311
7 yrs	60.2%	264
8 yrs	58.4%	219
9 yrs	57.0%	128
10 yrs	63.6%	107
11 yrs	80.8%	120
12 yrs	70.8%	130
13 yrs	65.6%	128
14 yrs	63.2%	87
15 yrs	72.4%	76
16 yrs	70.5%	88
17 yrs	62.3%	114
18 yrs	68.9%	103
19 yrs	70.1%	107
20 yrs	68.9%	177

Pass Rate Trend

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

📊 View as table

Built	Pass Rate	Tests
2024 (20 yrs)	68.9%	177
2023 (19 yrs)	70.1%	107
2022 (18 yrs)	68.9%	103
2021 (17 yrs)	62.3%	114
2020 (16 yrs)	70.5%	88
2019 (15 yrs)	72.4%	76
2018 (14 yrs)	63.2%	87
2017 (13 yrs)	65.6%	128
2016 (12 yrs)	70.8%	130
2015 (11 yrs)	80.8%	120
2014 (10 yrs)	63.6%	107
2013 (9 yrs)	57%	128
2012 (8 yrs)	58.4%	219
2011 (7 yrs)	60.2%	264
2010 (6 yrs)	57.9%	311
2009 (5 yrs)	63.7%	347

Year-by-Year MOT Results

2009High Fail Rate

63.7%

Age (yrs) 5Tests 347Avg Mileage 115,844Top Failure Lamps, Reflectors and Electrical Equipment — 25.4%

2010High Fail Rate

57.9%

Age (yrs) 6Tests 311Avg Mileage 129,778Top Failure Lamps, Reflectors and Electrical Equipment — 29.3%

2011High Fail Rate

60.2%

Age (yrs) 7Tests 264Avg Mileage 130,991Top Failure Lamps, Reflectors and Electrical Equipment — 26.1%

2012High Fail Rate

58.4%

Age (yrs) 8Tests 219Avg Mileage 134,703Top Failure Lamps, Reflectors and Electrical Equipment — 26.5%

2013High Fail Rate

57.0%

Age (yrs) 9Tests 128Avg Mileage 122,721Top Failure Brakes — 65.6%

2014High Fail Rate

63.6%

Age (yrs) 10Tests 107Avg Mileage 111,106Top Failure Brakes — 49.5%

2015

80.8%

Age (yrs) 11Tests 120Avg Mileage 118,346Top Failure Brakes — 21.7%

2016

70.8%

Age (yrs) 12Tests 130Avg Mileage 126,043Top Failure Suspension — 34.6%

2017

65.6%

Age (yrs) 13Tests 128Avg Mileage 136,226Top Failure Brakes — 50.8%

2018High Fail Rate

63.2%

Age (yrs) 14Tests 87Avg Mileage 143,858Top Failure Brakes — 47.1%

2019

72.4%

Age (yrs) 15Tests 76Avg Mileage 186,868Top Failure Brakes — 38.2%

2020

70.5%

Age (yrs) 16Tests 88Avg Mileage 141,782Top Failure Brakes — 43.2%

2021High Fail Rate

62.3%

Age (yrs) 17Tests 114Avg Mileage 195,111Top Failure Brakes — 64.0%

2022

68.9%

Age (yrs) 18Tests 103Avg Mileage 149,380Top Failure Brakes — 66.0%

2023

70.1%

Age (yrs) 19Tests 107Avg Mileage 144,979Top Failure Lamps, reflectors and electrical equipment — 61.7%

2024

68.9%

Age (yrs) 20Tests 177Avg Mileage 109,613Top Failure Brakes — 67.8%

MOT results for 2004 Mercedes Unclassified by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	5	63.7%	347	115,844	Lamps, Reflectors and Electrical Equipment — 25.4%
2010	6	57.9%	311	129,778	Lamps, Reflectors and Electrical Equipment — 29.3%
2011	7	60.2%	264	130,991	Lamps, Reflectors and Electrical Equipment — 26.1%
2012	8	58.4%	219	134,703	Lamps, Reflectors and Electrical Equipment — 26.5%
2013	9	57.0%	128	122,721	Brakes — 65.6%
2014	10	63.6%	107	111,106	Brakes — 49.5%
2015	11	80.8%	120	118,346	Brakes — 21.7%
2016	12	70.8%	130	126,043	Suspension — 34.6%
2017	13	65.6%	128	136,226	Brakes — 50.8%
2018	14	63.2%	87	143,858	Brakes — 47.1%
2019	15	72.4%	76	186,868	Brakes — 38.2%
2020	16	70.5%	88	141,782	Brakes — 43.2%
2021	17	62.3%	114	195,111	Brakes — 64.0%
2022	18	68.9%	103	149,380	Brakes — 66.0%
2023	19	70.1%	107	144,979	Lamps, reflectors and electrical equipment — 61.7%
2024	20	68.9%	177	109,613	Brakes — 67.8%

Common MOT Failures

Top failure categories across all test years for 2004 Mercedes Unclassified, with age trends.

Brakes

43.0%

↑ Increases with age

Lamps, reflectors and electrical equipment

42.7%

↓ Decreases with age

Lamps, Reflectors and Electrical Equipment

29.2%

↓ Decreases with age

Suspension

28.1%

↑ Increases with age

Steering

20.2%

— Consistent

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

Category	At Youngest	At Oldest	Change	Trend
Brakes	19.9% (5 yrs)	67.8% (20 yrs)	+47.9%	🔴 ↑
Suspension	19.3% (5 yrs)	36.2% (20 yrs)	+16.9%	🔴 ↑
Tyres	9.2% (5 yrs)	13.0% (20 yrs)	+3.8%	🔴 ↑

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 2004 perform at MOT as they age. Data spans from 2009 to 2024, covering 2,506 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.