1999 Mercedes Slk 200k — MOT History by Age

How cars manufactured in 1999 perform at MOT as they age

27 years

Current Age

56.4%

Latest Pass Rate

364

Total Tests (All Years)

88,791 mi

Avg Mileage (Latest)

Data from official DVSA MOT testing records

Compared to Average at Age 17

This car: 56.4%

Average: 53.5%

✅ 2.9% above average (9249 models compared)

How This Car Ages

Pass rate progression for the 1999 Mercedes Slk 200k as it ages.

10 yrs66.0%

→ ↑2.0%

11 yrs68.0%

→ ↓2.0%

12 yrs66.0%

→ ↓0.9%

13 yrs65.1%

→ ↓10.8%

14 yrs54.3%

→ ↑2.1%

15 yrs56.4%

→ ↓4.1%

16 yrs52.3%

→ ↑4.1%

17 yrs56.4%

📊 View as table

Age	Pass Rate	Tests
10 yrs	66.0%	53
11 yrs	68.0%	50
12 yrs	66.0%	50
13 yrs	65.1%	43
14 yrs	54.3%	46
15 yrs	56.4%	39
16 yrs	52.3%	44
17 yrs	56.4%	39

Pass Rate Trend

How the 1999 Mercedes Slk 200k pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2016 (17 yrs)	56.4%	39
2015 (16 yrs)	52.3%	44
2014 (15 yrs)	56.4%	39
2013 (14 yrs)	54.3%	46
2012 (13 yrs)	65.1%	43
2011 (12 yrs)	66%	50
2010 (11 yrs)	68%	50
2009 (10 yrs)	66%	53

Year-by-Year MOT Results

2009

66.0%

Age (yrs) 10Tests 53Avg Mileage 68,410Top Failure Lamps, Reflectors and Electrical Equipment — 24.5%

2010

68.0%

Age (yrs) 11Tests 50Avg Mileage 71,556Top Failure Tyres — 16.0%

2011

66.0%

Age (yrs) 12Tests 50Avg Mileage 76,003Top Failure Lamps, Reflectors and Electrical Equipment — 22.0%

2012

65.1%

Age (yrs) 13Tests 43Avg Mileage 79,367Top Failure Lamps, Reflectors and Electrical Equipment — 20.9%

2013High Fail Rate

54.3%

Age (yrs) 14Tests 46Avg Mileage 83,303Top Failure Lamps, Reflectors and Electrical Equipment — 52.2%

2014High Fail Rate

56.4%

Age (yrs) 15Tests 39Avg Mileage 85,746Top Failure Lamps, Reflectors and Electrical Equipment — 51.3%

2015High Fail Rate

52.3%

Age (yrs) 16Tests 44Avg Mileage 87,871Top Failure Lamps, Reflectors and Electrical Equipment — 77.3%

2016High Fail Rate

56.4%

Age (yrs) 17Tests 39Avg Mileage 88,791Top Failure Brakes — 69.2%

MOT results for 1999 Mercedes Slk 200k by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	10	66.0%	53	68,410	Lamps, Reflectors and Electrical Equipment — 24.5%
2010	11	68.0%	50	71,556	Tyres — 16.0%
2011	12	66.0%	50	76,003	Lamps, Reflectors and Electrical Equipment — 22.0%
2012	13	65.1%	43	79,367	Lamps, Reflectors and Electrical Equipment — 20.9%
2013	14	54.3%	46	83,303	Lamps, Reflectors and Electrical Equipment — 52.2%
2014	15	56.4%	39	85,746	Lamps, Reflectors and Electrical Equipment — 51.3%
2015	16	52.3%	44	87,871	Lamps, Reflectors and Electrical Equipment — 77.3%
2016	17	56.4%	39	88,791	Brakes — 69.2%

Common MOT Failures

Top failure categories across all test years for 1999 Mercedes Slk 200k, with age trends.

Lamps, Reflectors and Electrical Equipment

39.3%

↑ Increases with age

Brakes

32.9%

↑ Increases with age

Suspension

22.1%

↑ Increases with age

Tyres

19.6%

↑ Increases with age

Exhaust, Fuel and Emissions

13.9%

↑ 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	13.2% (10 yrs)	69.2% (17 yrs)	+56.0%	🔴 ↑
Lamps, Reflectors and Electrical Equipment	24.5% (10 yrs)	53.8% (17 yrs)	+29.3%	🔴 ↑
Suspension	7.5% (10 yrs)	35.9% (17 yrs)	+28.4%	🔴 ↑
Tyres	13.2% (10 yrs)	17.9% (17 yrs)	+4.7%	🔴 ↑

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 1999 perform at MOT as they age. Data spans from 2009 to 2016, covering 364 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.