2003 Mercedes Slk 200k — MOT History by Age

How cars manufactured in 2003 perform at MOT as they age

23 years

Current Age

62.9%

Latest Pass Rate

10,233

Total Tests (All Years)

84,105 mi

Avg Mileage (Latest)

Data from official DVSA MOT testing records

Compared to Average at Age 17

This car: 62.9%

Average: 53.5%

✅ 9.4% above average (9249 models compared)

How This Car Ages

Pass rate progression for the 2003 Mercedes Slk 200k as it ages.

6 yrs76.1%

→ ↓3.7%

7 yrs72.4%

→ ↓1.5%

8 yrs70.9%

→ ↑0.9%

9 yrs71.8%

→ ↓5.0%

10 yrs66.8%

→ ↓1.9%

11 yrs64.9%

→ ↓0.3%

12 yrs64.6%

→ ↑0.9%

13 yrs65.5%

→ ↓1.6%

14 yrs63.9%

→ ↑1.4%

15 yrs65.3%

→ ↓6.0%

16 yrs59.3%

→ ↑3.6%

17 yrs62.9%

📊 View as table

Age	Pass Rate	Tests
6 yrs	76.1%	976
7 yrs	72.4%	963
8 yrs	70.9%	969
9 yrs	71.8%	970
10 yrs	66.8%	966
11 yrs	64.9%	942
12 yrs	64.6%	926
13 yrs	65.5%	902
14 yrs	63.9%	879
15 yrs	65.3%	623
16 yrs	59.3%	583
17 yrs	62.9%	534

Pass Rate Trend

How the 2003 Mercedes Slk 200k pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2020 (17 yrs)	62.9%	534
2019 (16 yrs)	59.3%	583
2018 (15 yrs)	65.3%	623
2017 (14 yrs)	63.9%	879
2016 (13 yrs)	65.5%	902
2015 (12 yrs)	64.6%	926
2014 (11 yrs)	64.9%	942
2013 (10 yrs)	66.8%	966
2012 (9 yrs)	71.8%	970
2011 (8 yrs)	70.9%	969
2010 (7 yrs)	72.4%	963
2009 (6 yrs)	76.1%	976

Year-by-Year MOT Results

2009

76.1%

Age (yrs) 6Tests 976Avg Mileage 42,656Top Failure Suspension — 9.2%

2010

72.4%

Age (yrs) 7Tests 963Avg Mileage 48,166Top Failure Lamps, Reflectors and Electrical Equipment — 11.4%

2011

70.9%

Age (yrs) 8Tests 969Avg Mileage 53,888Top Failure Suspension — 13.0%

2012

71.8%

Age (yrs) 9Tests 970Avg Mileage 58,703Top Failure Lamps, Reflectors and Electrical Equipment — 12.4%

2013

66.8%

Age (yrs) 10Tests 966Avg Mileage 62,308Top Failure Lamps, Reflectors and Electrical Equipment — 26.5%

2014High Fail Rate

64.9%

Age (yrs) 11Tests 942Avg Mileage 66,328Top Failure Brakes — 31.5%

2015High Fail Rate

64.6%

Age (yrs) 12Tests 926Avg Mileage 70,302Top Failure Brakes — 28.5%

2016

65.5%

Age (yrs) 13Tests 902Avg Mileage 73,187Top Failure Brakes — 30.5%

2017High Fail Rate

63.9%

Age (yrs) 14Tests 879Avg Mileage 77,608Top Failure Brakes — 34.9%

2018

65.3%

Age (yrs) 15Tests 623Avg Mileage 81,460Top Failure Brakes — 39.0%

2019High Fail Rate

59.3%

Age (yrs) 16Tests 583Avg Mileage 82,853Top Failure Brakes — 48.0%

2020High Fail Rate

62.9%

Age (yrs) 17Tests 534Avg Mileage 84,105Top Failure Lamps, reflectors and electrical equipment — 39.5%

MOT results for 2003 Mercedes Slk 200k by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	6	76.1%	976	42,656	Suspension — 9.2%
2010	7	72.4%	963	48,166	Lamps, Reflectors and Electrical Equipment — 11.4%
2011	8	70.9%	969	53,888	Suspension — 13.0%
2012	9	71.8%	970	58,703	Lamps, Reflectors and Electrical Equipment — 12.4%
2013	10	66.8%	966	62,308	Lamps, Reflectors and Electrical Equipment — 26.5%
2014	11	64.9%	942	66,328	Brakes — 31.5%
2015	12	64.6%	926	70,302	Brakes — 28.5%
2016	13	65.5%	902	73,187	Brakes — 30.5%
2017	14	63.9%	879	77,608	Brakes — 34.9%
2018	15	65.3%	623	81,460	Brakes — 39.0%
2019	16	59.3%	583	82,853	Brakes — 48.0%
2020	17	62.9%	534	84,105	Lamps, reflectors and electrical equipment — 39.5%

Common MOT Failures

Top failure categories across all test years for 2003 Mercedes Slk 200k, with age trends.

Lamps, reflectors and electrical equipment

31.2%

↑ Increases with age

Brakes

25.3%

↑ Increases with age

Suspension

21.3%

↑ Increases with age

Lamps, Reflectors and Electrical Equipment

20.5%

↑ Increases with age

Tyres

17.8%

↑ 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
Brakes	6.1% (6 yrs)	32.4% (17 yrs)	+26.3%	🔴 ↑
Tyres	8.3% (6 yrs)	28.5% (17 yrs)	+20.2%	🔴 ↑
Suspension	9.2% (6 yrs)	27.3% (17 yrs)	+18.1%	🔴 ↑

Other Manufacture Years

1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012

← Back to Mercedes Slk 200k overview

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About This Data

This page shows how Mercedes Slk 200k cars manufactured in 2003 perform at MOT as they age. Data spans from 2009 to 2020, covering 10,233 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.