2005 Mercedes Slk 350 — MOT History by Age

How cars manufactured in 2005 perform at MOT as they age

21 years

Current Age

67.9%

Latest Pass Rate

15,181

Total Tests (All Years)

69,367 mi

Avg Mileage (Latest)

Data from official DVSA MOT testing records

Compared to Average at Age 15

This car: 67.9%

Average: 52.4%

✅ 15.5% above average (11197 models compared)

How This Car Ages

Pass rate progression for the 2005 Mercedes Slk 350 as it ages.

4 yrs87.5%

→ ↓5.2%

5 yrs82.3%

→ ↓0.0%

6 yrs82.3%

→ ↓1.1%

7 yrs81.2%

→ ↓3.1%

8 yrs78.1%

→ ↓1.9%

9 yrs76.2%

→ ↑1.4%

10 yrs77.6%

→ ↓1.4%

11 yrs76.2%

→ ↓5.5%

12 yrs70.7%

→ ↑3.2%

13 yrs73.9%

→ ↓0.8%

14 yrs73.1%

→ ↓5.2%

15 yrs67.9%

📊 View as table

Age	Pass Rate	Tests
4 yrs	87.5%	1,723
5 yrs	82.3%	1,688
6 yrs	82.3%	1,722
7 yrs	81.2%	1,685
8 yrs	78.1%	1,693
9 yrs	76.2%	1,691
10 yrs	77.6%	1,673
11 yrs	76.2%	1,661
12 yrs	70.7%	533
13 yrs	73.9%	356
14 yrs	73.1%	391
15 yrs	67.9%	365

Pass Rate Trend

How the 2005 Mercedes Slk 350 pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2020 (15 yrs)	67.9%	365
2019 (14 yrs)	73.1%	391
2018 (13 yrs)	73.9%	356
2017 (12 yrs)	70.7%	533
2016 (11 yrs)	76.2%	1,661
2015 (10 yrs)	77.6%	1,673
2014 (9 yrs)	76.2%	1,691
2013 (8 yrs)	78.1%	1,693
2012 (7 yrs)	81.2%	1,685
2011 (6 yrs)	82.3%	1,722
2010 (5 yrs)	82.3%	1,688
2009 (4 yrs)	87.5%	1,723

Year-by-Year MOT Results

2009

87.5%

Age (yrs) 4Tests 1,723Avg Mileage 28,720Top Failure Tyres — 7.6%

2010

82.3%

Age (yrs) 5Tests 1,688Avg Mileage 34,569Top Failure Tyres — 10.1%

2011

82.3%

Age (yrs) 6Tests 1,722Avg Mileage 40,217Top Failure Tyres — 9.3%

2012

81.2%

Age (yrs) 7Tests 1,685Avg Mileage 44,339Top Failure Tyres — 7.7%

2013

78.1%

Age (yrs) 8Tests 1,693Avg Mileage 48,166Top Failure Tyres — 16.5%

2014

76.2%

Age (yrs) 9Tests 1,691Avg Mileage 53,351Top Failure Tyres — 17.2%

2015

77.6%

Age (yrs) 10Tests 1,673Avg Mileage 57,018Top Failure Suspension — 17.4%

2016

76.2%

Age (yrs) 11Tests 1,661Avg Mileage 60,761Top Failure Suspension — 18.5%

2017

70.7%

Age (yrs) 12Tests 533Avg Mileage 62,195Top Failure Brakes — 27.4%

2018

73.9%

Age (yrs) 13Tests 356Avg Mileage 64,802Top Failure Brakes — 25.6%

2019

73.1%

Age (yrs) 14Tests 391Avg Mileage 67,739Top Failure Suspension — 22.5%

2020

67.9%

Age (yrs) 15Tests 365Avg Mileage 69,367Top Failure Suspension — 36.2%

MOT results for 2005 Mercedes Slk 350 by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	4	87.5%	1,723	28,720	Tyres — 7.6%
2010	5	82.3%	1,688	34,569	Tyres — 10.1%
2011	6	82.3%	1,722	40,217	Tyres — 9.3%
2012	7	81.2%	1,685	44,339	Tyres — 7.7%
2013	8	78.1%	1,693	48,166	Tyres — 16.5%
2014	9	76.2%	1,691	53,351	Tyres — 17.2%
2015	10	77.6%	1,673	57,018	Suspension — 17.4%
2016	11	76.2%	1,661	60,761	Suspension — 18.5%
2017	12	70.7%	533	62,195	Brakes — 27.4%
2018	13	73.9%	356	64,802	Brakes — 25.6%
2019	14	73.1%	391	67,739	Suspension — 22.5%
2020	15	67.9%	365	69,367	Suspension — 36.2%

Common MOT Failures

Top failure categories across all test years for 2005 Mercedes Slk 350, with age trends.

Lamps, reflectors and electrical equipment

15.7%

↑ Increases with age

Suspension

15.4%

↑ Increases with age

Brakes

15.1%

↑ Increases with age

Tyres

13.8%

↑ Increases with age

Lamps, Reflectors and Electrical Equipment

9.7%

— Consistent

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

Category	At Youngest	At Oldest	Change	Trend
Suspension	1.4% (4 yrs)	36.2% (15 yrs)	+34.8%	🔴 ↑
Brakes	3.0% (4 yrs)	31.0% (15 yrs)	+28.0%	🔴 ↑
Tyres	7.6% (4 yrs)	20.0% (15 yrs)	+12.4%	🔴 ↑

Other Manufacture Years

2004 2005 2006 2007 2008 2009 2010 2011 2012

← Back to Mercedes Slk 350 overview

Looking for the best year to buy? See the full comparison on the Mercedes Slk 350 page →

About This Data

This page shows how Mercedes Slk 350 cars manufactured in 2005 perform at MOT as they age. Data spans from 2009 to 2020, covering 15,181 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.