2005 Mercedes Sl 350 — MOT History by Age

How cars manufactured in 2005 perform at MOT as they age

21 years

Current Age

79.5%

Latest Pass Rate

7,479

Total Tests (All Years)

67,505 mi

Avg Mileage (Latest)

Data from official DVSA MOT testing records

Compared to Average at Age 15

This car: 79.5%

Average: 52.4%

✅ 27.1% above average (11197 models compared)

How This Car Ages

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

4 yrs85.9%

→ ↓0.8%

5 yrs85.1%

→ ↓1.4%

6 yrs83.7%

→ ↓1.2%

7 yrs82.5%

→ ↓1.4%

8 yrs81.1%

→ ↓2.4%

9 yrs78.7%

→ ↑0.7%

10 yrs79.4%

→ ↑0.1%

11 yrs79.5%

→ ↑0.3%

12 yrs79.8%

→ ↑4.7%

13 yrs84.5%

→ ↓6.7%

14 yrs77.8%

→ ↑1.7%

15 yrs79.5%

📊 View as table

Age	Pass Rate	Tests
4 yrs	85.9%	835
5 yrs	85.1%	817
6 yrs	83.7%	830
7 yrs	82.5%	830
8 yrs	81.1%	825
9 yrs	78.7%	835
10 yrs	79.4%	826
11 yrs	79.5%	825
12 yrs	79.8%	277
13 yrs	84.5%	200
14 yrs	77.8%	194
15 yrs	79.5%	185

Pass Rate Trend

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

📊 View as table

Built	Pass Rate	Tests
2020 (15 yrs)	79.5%	185
2019 (14 yrs)	77.8%	194
2018 (13 yrs)	84.5%	200
2017 (12 yrs)	79.8%	277
2016 (11 yrs)	79.5%	825
2015 (10 yrs)	79.4%	826
2014 (9 yrs)	78.7%	835
2013 (8 yrs)	81.1%	825
2012 (7 yrs)	82.5%	830
2011 (6 yrs)	83.7%	830
2010 (5 yrs)	85.1%	817
2009 (4 yrs)	85.9%	835

Year-by-Year MOT Results

2009

85.9%

Age (yrs) 4Tests 835Avg Mileage 28,729Top Failure Tyres — 7.5%

2010

85.1%

Age (yrs) 5Tests 817Avg Mileage 34,433Top Failure Tyres — 8.6%

2011

83.7%

Age (yrs) 6Tests 830Avg Mileage 39,566Top Failure Tyres — 8.6%

2012

82.5%

Age (yrs) 7Tests 830Avg Mileage 44,335Top Failure Tyres — 7.6%

2013

81.1%

Age (yrs) 8Tests 825Avg Mileage 48,448Top Failure Tyres — 16.5%

2014

78.7%

Age (yrs) 9Tests 835Avg Mileage 53,725Top Failure Tyres — 15.1%

2015

79.4%

Age (yrs) 10Tests 826Avg Mileage 56,567Top Failure Tyres — 16.8%

2016

79.5%

Age (yrs) 11Tests 825Avg Mileage 60,423Top Failure Tyres — 16.7%

2017

79.8%

Age (yrs) 12Tests 277Avg Mileage 60,904Top Failure Suspension — 15.5%

2018

84.5%

Age (yrs) 13Tests 200Avg Mileage 62,723Top Failure Suspension — 11.0%

2019

77.8%

Age (yrs) 14Tests 194Avg Mileage 66,635Top Failure Tyres — 20.6%

2020

79.5%

Age (yrs) 15Tests 185Avg Mileage 67,505Top Failure Suspension — 19.5%

MOT results for 2005 Mercedes Sl 350 by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	4	85.9%	835	28,729	Tyres — 7.5%
2010	5	85.1%	817	34,433	Tyres — 8.6%
2011	6	83.7%	830	39,566	Tyres — 8.6%
2012	7	82.5%	830	44,335	Tyres — 7.6%
2013	8	81.1%	825	48,448	Tyres — 16.5%
2014	9	78.7%	835	53,725	Tyres — 15.1%
2015	10	79.4%	826	56,567	Tyres — 16.8%
2016	11	79.5%	825	60,423	Tyres — 16.7%
2017	12	79.8%	277	60,904	Suspension — 15.5%
2018	13	84.5%	200	62,723	Suspension — 11.0%
2019	14	77.8%	194	66,635	Tyres — 20.6%
2020	15	79.5%	185	67,505	Suspension — 19.5%

Common MOT Failures

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

Tyres

12.9%

↑ Increases with age

Suspension

10.4%

↑ Increases with age

Brakes

8.8%

↑ Increases with age

Lamps, reflectors and electrical equipment

7.4%

— Consistent

Lamps, Reflectors and Electrical Equipment

7.1%

↑ 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
Tyres	7.5% (4 yrs)	15.7% (15 yrs)	+8.2%	🔴 ↑
Brakes	2.5% (4 yrs)	7.0% (15 yrs)	+4.5%	🔴 ↑

Other Manufacture Years

1979 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012

← Back to Mercedes Sl 350 overview

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

About This Data

This page shows how Mercedes Sl 350 cars manufactured in 2005 perform at MOT as they age. Data spans from 2009 to 2020, covering 7,479 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.