2001 Mercedes Slk 230k — MOT History by Age

How cars manufactured in 2001 perform at MOT as they age

25 years

Current Age

67.3%

Latest Pass Rate

18,701

Total Tests (All Years)

89,347 mi

Avg Mileage (Latest)

Data from official DVSA MOT testing records

Compared to Average at Age 19

This car: 67.3%

Average: 55.4%

✅ 11.9% above average (7550 models compared)

How This Car Ages

Pass rate progression for the 2001 Mercedes Slk 230k as it ages.

8 yrs75.3%

→ ↓0.1%

9 yrs75.2%

→ ↓3.9%

10 yrs71.3%

→ ↑0.6%

11 yrs71.9%

→ ↓1.1%

12 yrs70.8%

→ ↓2.2%

13 yrs68.6%

→ ↑2.3%

14 yrs70.9%

→ ↓1.1%

15 yrs69.8%

→ ↑1.2%

16 yrs71.0%

→ ↓3.4%

17 yrs67.6%

→ ↑3.2%

18 yrs70.8%

→ ↓3.5%

19 yrs67.3%

📊 View as table

Age	Pass Rate	Tests
8 yrs	75.3%	1,955
9 yrs	75.2%	1,908
10 yrs	71.3%	1,924
11 yrs	71.9%	1,897
12 yrs	70.8%	1,867
13 yrs	68.6%	1,834
14 yrs	70.9%	1,806
15 yrs	69.8%	1,744
16 yrs	71.0%	1,285
17 yrs	67.6%	862
18 yrs	70.8%	855
19 yrs	67.3%	764

Pass Rate Trend

How the 2001 Mercedes Slk 230k pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2020 (19 yrs)	67.3%	764
2019 (18 yrs)	70.8%	855
2018 (17 yrs)	67.6%	862
2017 (16 yrs)	71%	1,285
2016 (15 yrs)	69.8%	1,744
2015 (14 yrs)	70.9%	1,806
2014 (13 yrs)	68.6%	1,834
2013 (12 yrs)	70.8%	1,867
2012 (11 yrs)	71.9%	1,897
2011 (10 yrs)	71.3%	1,924
2010 (9 yrs)	75.2%	1,908
2009 (8 yrs)	75.3%	1,955

Year-by-Year MOT Results

2009

75.3%

Age (yrs) 8Tests 1,955Avg Mileage 55,566Top Failure Lamps, Reflectors and Electrical Equipment — 13.6%

2010

75.2%

Age (yrs) 9Tests 1,908Avg Mileage 60,302Top Failure Lamps, Reflectors and Electrical Equipment — 12.6%

2011

71.3%

Age (yrs) 10Tests 1,924Avg Mileage 65,556Top Failure Lamps, Reflectors and Electrical Equipment — 14.8%

2012

71.9%

Age (yrs) 11Tests 1,897Avg Mileage 68,780Top Failure Lamps, Reflectors and Electrical Equipment — 14.9%

2013

70.8%

Age (yrs) 12Tests 1,867Avg Mileage 73,022Top Failure Lamps, Reflectors and Electrical Equipment — 27.2%

2014

68.6%

Age (yrs) 13Tests 1,834Avg Mileage 76,831Top Failure Lamps, Reflectors and Electrical Equipment — 31.4%

2015

70.9%

Age (yrs) 14Tests 1,806Avg Mileage 80,133Top Failure Lamps, Reflectors and Electrical Equipment — 26.8%

2016

69.8%

Age (yrs) 15Tests 1,744Avg Mileage 83,259Top Failure Lamps, Reflectors and Electrical Equipment — 29.1%

2017

71.0%

Age (yrs) 16Tests 1,285Avg Mileage 85,200Top Failure Brakes — 25.9%

2018

67.6%

Age (yrs) 17Tests 862Avg Mileage 86,114Top Failure Brakes — 29.7%

2019

70.8%

Age (yrs) 18Tests 855Avg Mileage 89,220Top Failure Lamps, reflectors and electrical equipment — 29.8%

2020

67.3%

Age (yrs) 19Tests 764Avg Mileage 89,347Top Failure Brakes — 34.4%

MOT results for 2001 Mercedes Slk 230k by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	8	75.3%	1,955	55,566	Lamps, Reflectors and Electrical Equipment — 13.6%
2010	9	75.2%	1,908	60,302	Lamps, Reflectors and Electrical Equipment — 12.6%
2011	10	71.3%	1,924	65,556	Lamps, Reflectors and Electrical Equipment — 14.8%
2012	11	71.9%	1,897	68,780	Lamps, Reflectors and Electrical Equipment — 14.9%
2013	12	70.8%	1,867	73,022	Lamps, Reflectors and Electrical Equipment — 27.2%
2014	13	68.6%	1,834	76,831	Lamps, Reflectors and Electrical Equipment — 31.4%
2015	14	70.9%	1,806	80,133	Lamps, Reflectors and Electrical Equipment — 26.8%
2016	15	69.8%	1,744	83,259	Lamps, Reflectors and Electrical Equipment — 29.1%
2017	16	71.0%	1,285	85,200	Brakes — 25.9%
2018	17	67.6%	862	86,114	Brakes — 29.7%
2019	18	70.8%	855	89,220	Lamps, reflectors and electrical equipment — 29.8%
2020	19	67.3%	764	89,347	Brakes — 34.4%

Common MOT Failures

Top failure categories across all test years for 2001 Mercedes Slk 230k, with age trends.

Lamps, reflectors and electrical equipment

24.3%

↑ Increases with age

Brakes

21.3%

↑ Increases with age

Lamps, Reflectors and Electrical Equipment

20.7%

— Consistent

Tyres

16.9%

↑ Increases with age

Suspension

14.8%

↑ 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	6.3% (8 yrs)	34.4% (19 yrs)	+28.1%	🔴 ↑
Suspension	5.3% (8 yrs)	24.2% (19 yrs)	+18.9%	🔴 ↑
Tyres	9.3% (8 yrs)	27.9% (19 yrs)	+18.6%	🔴 ↑

Other Manufacture Years

1996 1997 1998 1999 2000 2001 2002 2003 2004

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About This Data

This page shows how Mercedes Slk 230k cars manufactured in 2001 perform at MOT as they age. Data spans from 2009 to 2020, covering 18,701 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.