2004 Mercedes C 230k — MOT History by Age

How cars manufactured in 2004 perform at MOT as they age

22 years

Current Age

54.2%

Latest Pass Rate

7,402

Total Tests (All Years)

109,154 mi

Avg Mileage (Latest)

Data from official DVSA MOT testing records

Compared to Average at Age 16

This car: 54.2%

Average: 52.7%

✅ 1.5% above average (10212 models compared)

How This Car Ages

Pass rate progression for the 2004 Mercedes C 230k as it ages.

5 yrs73.1%

→ ↓6.7%

6 yrs66.4%

→ ↓0.2%

7 yrs66.2%

→ ↓3.6%

8 yrs62.6%

→ ↓3.1%

9 yrs59.5%

→ ↓0.6%

10 yrs58.9%

→ ↓2.8%

11 yrs56.1%

→ ↑2.0%

12 yrs58.1%

→ ↓2.6%

13 yrs55.5%

→ ↓2.4%

14 yrs53.1%

→ ↑0.4%

15 yrs53.5%

→ ↑0.7%

16 yrs54.2%

📊 View as table

Age	Pass Rate	Tests
5 yrs	73.1%	795
6 yrs	66.4%	792
7 yrs	66.2%	775
8 yrs	62.6%	778
9 yrs	59.5%	751
10 yrs	58.9%	760
11 yrs	56.1%	745
12 yrs	58.1%	723
13 yrs	55.5%	456
14 yrs	53.1%	303
15 yrs	53.5%	275
16 yrs	54.2%	249

Pass Rate Trend

How the 2004 Mercedes C 230k pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2020 (16 yrs)	54.2%	249
2019 (15 yrs)	53.5%	275
2018 (14 yrs)	53.1%	303
2017 (13 yrs)	55.5%	456
2016 (12 yrs)	58.1%	723
2015 (11 yrs)	56.1%	745
2014 (10 yrs)	58.9%	760
2013 (9 yrs)	59.5%	751
2012 (8 yrs)	62.6%	778
2011 (7 yrs)	66.2%	775
2010 (6 yrs)	66.4%	792
2009 (5 yrs)	73.1%	795

Year-by-Year MOT Results

2009

73.1%

Age (yrs) 5Tests 795Avg Mileage 46,632Top Failure Tyres — 10.3%

2010

66.4%

Age (yrs) 6Tests 792Avg Mileage 54,357Top Failure Tyres — 13.9%

2011

66.2%

Age (yrs) 7Tests 775Avg Mileage 61,376Top Failure Suspension — 15.0%

2012High Fail Rate

62.6%

Age (yrs) 8Tests 778Avg Mileage 67,298Top Failure Suspension — 15.9%

2013High Fail Rate

59.5%

Age (yrs) 9Tests 751Avg Mileage 74,405Top Failure Suspension — 37.2%

2014High Fail Rate

58.9%

Age (yrs) 10Tests 760Avg Mileage 81,367Top Failure Suspension — 39.1%

2015High Fail Rate

56.1%

Age (yrs) 11Tests 745Avg Mileage 87,436Top Failure Suspension — 45.0%

2016High Fail Rate

58.1%

Age (yrs) 12Tests 723Avg Mileage 93,582Top Failure Suspension — 40.1%

2017High Fail Rate

55.5%

Age (yrs) 13Tests 456Avg Mileage 98,536Top Failure Suspension — 52.2%

2018High Fail Rate

53.1%

Age (yrs) 14Tests 303Avg Mileage 102,291Top Failure Suspension — 71.0%

2019High Fail Rate

53.5%

Age (yrs) 15Tests 275Avg Mileage 105,006Top Failure Suspension — 67.3%

2020High Fail Rate

54.2%

Age (yrs) 16Tests 249Avg Mileage 109,154Top Failure Suspension — 72.3%

MOT results for 2004 Mercedes C 230k by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	5	73.1%	795	46,632	Tyres — 10.3%
2010	6	66.4%	792	54,357	Tyres — 13.9%
2011	7	66.2%	775	61,376	Suspension — 15.0%
2012	8	62.6%	778	67,298	Suspension — 15.9%
2013	9	59.5%	751	74,405	Suspension — 37.2%
2014	10	58.9%	760	81,367	Suspension — 39.1%
2015	11	56.1%	745	87,436	Suspension — 45.0%
2016	12	58.1%	723	93,582	Suspension — 40.1%
2017	13	55.5%	456	98,536	Suspension — 52.2%
2018	14	53.1%	303	102,291	Suspension — 71.0%
2019	15	53.5%	275	105,006	Suspension — 67.3%
2020	16	54.2%	249	109,154	Suspension — 72.3%

Common MOT Failures

Top failure categories across all test years for 2004 Mercedes C 230k, with age trends.

Suspension

39.4%

↑ Increases with age

Lamps, reflectors and electrical equipment

30.1%

↑ Increases with age

Brakes

28.9%

↑ Increases with age

Noise, emissions and leaks

25.2%

↓ Decreases with age

Tyres

23.8%

↑ 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
Suspension	5.9% (5 yrs)	72.3% (16 yrs)	+66.4%	🔴 ↑
Brakes	8.4% (5 yrs)	50.6% (16 yrs)	+42.2%	🔴 ↑
Tyres	10.3% (5 yrs)	34.9% (16 yrs)	+24.6%	🔴 ↑

Other Manufacture Years

1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005

← Back to Mercedes C 230k overview

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About This Data

This page shows how Mercedes C 230k cars manufactured in 2004 perform at MOT as they age. Data spans from 2009 to 2020, covering 7,402 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.