2004 Mercedes Slk 200k — MOT History by Age

How cars manufactured in 2004 perform at MOT as they age

22 years

Current Age

62.7%

Latest Pass Rate

18,511

Total Tests (All Years)

78,795 mi

Avg Mileage (Latest)

Data from official DVSA MOT testing records

Compared to Average at Age 16

This car: 62.7%

Average: 52.7%

✅ 10.0% above average (10212 models compared)

How This Car Ages

Pass rate progression for the 2004 Mercedes Slk 200k as it ages.

5 yrs82.5%

→ ↓2.7%

6 yrs79.8%

→ ↓1.9%

7 yrs77.9%

→ ↓3.0%

8 yrs74.9%

→ ↓2.3%

9 yrs72.6%

→ ↓1.7%

10 yrs70.9%

→ ↓1.6%

11 yrs69.3%

→ ↓0.2%

12 yrs69.1%

→ ↓1.4%

13 yrs67.7%

→ ↓2.4%

14 yrs65.3%

→ ↓1.8%

15 yrs63.5%

→ ↓0.8%

16 yrs62.7%

📊 View as table

Age	Pass Rate	Tests
5 yrs	82.5%	1,743
6 yrs	79.8%	1,702
7 yrs	77.9%	1,725
8 yrs	74.9%	1,711
9 yrs	72.6%	1,730
10 yrs	70.9%	1,680
11 yrs	69.3%	1,689
12 yrs	69.1%	1,684
13 yrs	67.7%	1,536
14 yrs	65.3%	1,101
15 yrs	63.5%	1,118
16 yrs	62.7%	1,092

Pass Rate Trend

How the 2004 Mercedes Slk 200k pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2020 (16 yrs)	62.7%	1,092
2019 (15 yrs)	63.5%	1,118
2018 (14 yrs)	65.3%	1,101
2017 (13 yrs)	67.7%	1,536
2016 (12 yrs)	69.1%	1,684
2015 (11 yrs)	69.3%	1,689
2014 (10 yrs)	70.9%	1,680
2013 (9 yrs)	72.6%	1,730
2012 (8 yrs)	74.9%	1,711
2011 (7 yrs)	77.9%	1,725
2010 (6 yrs)	79.8%	1,702
2009 (5 yrs)	82.5%	1,743

Year-by-Year MOT Results

2009

82.5%

Age (yrs) 5Tests 1,743Avg Mileage 34,277Top Failure Tyres — 7.6%

2010

79.8%

Age (yrs) 6Tests 1,702Avg Mileage 39,394Top Failure Tyres — 8.5%

2011

77.9%

Age (yrs) 7Tests 1,725Avg Mileage 44,063Top Failure Suspension — 8.7%

2012

74.9%

Age (yrs) 8Tests 1,711Avg Mileage 49,542Top Failure Suspension — 10.6%

2013

72.6%

Age (yrs) 9Tests 1,730Avg Mileage 54,220Top Failure Suspension — 21.9%

2014

70.9%

Age (yrs) 10Tests 1,680Avg Mileage 58,914Top Failure Suspension — 24.0%

2015

69.3%

Age (yrs) 11Tests 1,689Avg Mileage 63,377Top Failure Suspension — 25.6%

2016

69.1%

Age (yrs) 12Tests 1,684Avg Mileage 66,643Top Failure Suspension — 25.1%

2017

67.7%

Age (yrs) 13Tests 1,536Avg Mileage 70,340Top Failure Suspension — 29.9%

2018

65.3%

Age (yrs) 14Tests 1,101Avg Mileage 73,732Top Failure Suspension — 35.1%

2019High Fail Rate

63.5%

Age (yrs) 15Tests 1,118Avg Mileage 76,340Top Failure Suspension — 36.9%

2020High Fail Rate

62.7%

Age (yrs) 16Tests 1,092Avg Mileage 78,795Top Failure Brakes — 41.5%

MOT results for 2004 Mercedes Slk 200k by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	5	82.5%	1,743	34,277	Tyres — 7.6%
2010	6	79.8%	1,702	39,394	Tyres — 8.5%
2011	7	77.9%	1,725	44,063	Suspension — 8.7%
2012	8	74.9%	1,711	49,542	Suspension — 10.6%
2013	9	72.6%	1,730	54,220	Suspension — 21.9%
2014	10	70.9%	1,680	58,914	Suspension — 24.0%
2015	11	69.3%	1,689	63,377	Suspension — 25.6%
2016	12	69.1%	1,684	66,643	Suspension — 25.1%
2017	13	67.7%	1,536	70,340	Suspension — 29.9%
2018	14	65.3%	1,101	73,732	Suspension — 35.1%
2019	15	63.5%	1,118	76,340	Suspension — 36.9%
2020	16	62.7%	1,092	78,795	Brakes — 41.5%

Common MOT Failures

Top failure categories across all test years for 2004 Mercedes Slk 200k, with age trends.

Suspension

22.5%

↑ Increases with age

Lamps, reflectors and electrical equipment

21.7%

↑ Increases with age

Brakes

19.4%

↑ Increases with age

Tyres

16.0%

↑ Increases with age

Lamps, Reflectors and Electrical Equipment

11.9%

— Consistent

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

Category	At Youngest	At Oldest	Change	Trend
Brakes	3.0% (5 yrs)	41.5% (16 yrs)	+38.5%	🔴 ↑
Suspension	4.6% (5 yrs)	41.2% (16 yrs)	+36.6%	🔴 ↑
Tyres	7.6% (5 yrs)	28.5% (16 yrs)	+20.9%	🔴 ↑

Other Manufacture Years

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

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About This Data

This page shows how Mercedes Slk 200k cars manufactured in 2004 perform at MOT as they age. Data spans from 2009 to 2020, covering 18,511 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.