2004 Mercedes C 55 — MOT History by Age

How cars manufactured in 2004 perform at MOT as they age

22 years

Current Age

70.2%

Latest Pass Rate

789

Total Tests (All Years)

111,109 mi

Avg Mileage (Latest)

Data from official DVSA MOT testing records

Compared to Average at Age 16

This car: 70.2%

Average: 52.7%

✅ 17.5% above average (10212 models compared)

How This Car Ages

Pass rate progression for the 2004 Mercedes C 55 as it ages.

5 yrs75.3%

→ ↓2.0%

6 yrs73.3%

→ ↓1.9%

7 yrs71.4%

→ ↑2.9%

8 yrs74.3%

→ ↓10.7%

9 yrs63.6%

→ ↑1.2%

10 yrs64.8%

→ ↑5.8%

11 yrs70.6%

→ ↓6.3%

12 yrs64.3%

→ ↓2.6%

13 yrs61.7%

→ ↑8.1%

14 yrs69.8%

→ ↓2.5%

15 yrs67.3%

→ ↑2.9%

16 yrs70.2%

📊 View as table

Age	Pass Rate	Tests
5 yrs	75.3%	89
6 yrs	73.3%	75
7 yrs	71.4%	77
8 yrs	74.3%	74
9 yrs	63.6%	66
10 yrs	64.8%	71
11 yrs	70.6%	68
12 yrs	64.3%	70
13 yrs	61.7%	60
14 yrs	69.8%	43
15 yrs	67.3%	49
16 yrs	70.2%	47

Pass Rate Trend

How the 2004 Mercedes C 55 pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2020 (16 yrs)	70.2%	47
2019 (15 yrs)	67.3%	49
2018 (14 yrs)	69.8%	43
2017 (13 yrs)	61.7%	60
2016 (12 yrs)	64.3%	70
2015 (11 yrs)	70.6%	68
2014 (10 yrs)	64.8%	71
2013 (9 yrs)	63.6%	66
2012 (8 yrs)	74.3%	74
2011 (7 yrs)	71.4%	77
2010 (6 yrs)	73.3%	75
2009 (5 yrs)	75.3%	89

Year-by-Year MOT Results

2009

75.3%

Age (yrs) 5Tests 89Avg Mileage 44,569Top Failure Lamps, Reflectors and Electrical Equipment — 7.9%

2010

73.3%

Age (yrs) 6Tests 75Avg Mileage 53,501Top Failure Tyres — 13.3%

2011

71.4%

Age (yrs) 7Tests 77Avg Mileage 60,517Top Failure Suspension — 11.7%

2012

74.3%

Age (yrs) 8Tests 74Avg Mileage 66,794Top Failure Suspension — 14.9%

2013High Fail Rate

63.6%

Age (yrs) 9Tests 66Avg Mileage 73,199Top Failure Lamps, Reflectors and Electrical Equipment — 37.9%

2014High Fail Rate

64.8%

Age (yrs) 10Tests 71Avg Mileage 79,496Top Failure Suspension — 29.6%

2015

70.6%

Age (yrs) 11Tests 68Avg Mileage 86,205Top Failure Suspension — 29.4%

2016High Fail Rate

64.3%

Age (yrs) 12Tests 70Avg Mileage 89,271Top Failure Lamps, Reflectors and Electrical Equipment — 41.4%

2017High Fail Rate

61.7%

Age (yrs) 13Tests 60Avg Mileage 95,074Top Failure Lamps, Reflectors and Electrical Equipment — 31.7%

2018

69.8%

Age (yrs) 14Tests 43Avg Mileage 102,593Top Failure Suspension — 34.9%

2019

67.3%

Age (yrs) 15Tests 49Avg Mileage 108,587Top Failure Suspension — 30.6%

2020

70.2%

Age (yrs) 16Tests 47Avg Mileage 111,109Top Failure Lamps, reflectors and electrical equipment — 29.8%

MOT results for 2004 Mercedes C 55 by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	5	75.3%	89	44,569	Lamps, Reflectors and Electrical Equipment — 7.9%
2010	6	73.3%	75	53,501	Tyres — 13.3%
2011	7	71.4%	77	60,517	Suspension — 11.7%
2012	8	74.3%	74	66,794	Suspension — 14.9%
2013	9	63.6%	66	73,199	Lamps, Reflectors and Electrical Equipment — 37.9%
2014	10	64.8%	71	79,496	Suspension — 29.6%
2015	11	70.6%	68	86,205	Suspension — 29.4%
2016	12	64.3%	70	89,271	Lamps, Reflectors and Electrical Equipment — 41.4%
2017	13	61.7%	60	95,074	Lamps, Reflectors and Electrical Equipment — 31.7%
2018	14	69.8%	43	102,593	Suspension — 34.9%
2019	15	67.3%	49	108,587	Suspension — 30.6%
2020	16	70.2%	47	111,109	Lamps, reflectors and electrical equipment — 29.8%

Common MOT Failures

Top failure categories across all test years for 2004 Mercedes C 55, with age trends.

Suspension

22.1%

↑ Increases with age

Lamps, Reflectors and Electrical Equipment

21.6%

↑ Increases with age

Lamps, reflectors and electrical equipment

19.8%

↑ Increases with age

Brakes

16.9%

↑ Increases with age

Tyres

15.0%

↑ 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	3.4% (5 yrs)	21.3% (16 yrs)	+17.9%	🔴 ↑
Tyres	7.9% (5 yrs)	23.4% (16 yrs)	+15.5%	🔴 ↑
Suspension	3.4% (5 yrs)	14.9% (16 yrs)	+11.5%	🔴 ↑

Other Manufacture Years

2004 2005

← Back to Mercedes C 55 overview

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About This Data

This page shows how Mercedes C 55 cars manufactured in 2004 perform at MOT as they age. Data spans from 2009 to 2020, covering 789 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.