2004 Mercedes Sl500 Auto — MOT History by Age

How cars manufactured in 2004 perform at MOT as they age

22 years

Current Age

81.9%

Latest Pass Rate

1,057

Total Tests (All Years)

60,717 mi

Avg Mileage (Latest)

Data from official DVSA MOT testing records

Compared to Average at Age 12

This car: 81.9%

Average: 54.3%

✅ 27.6% above average (13966 models compared)

How This Car Ages

Pass rate progression for the 2004 Mercedes Sl500 Auto as it ages.

5 yrs83.2%

→ ↑2.7%

6 yrs85.9%

→ ↑1.7%

7 yrs87.6%

→ ↓6.2%

8 yrs81.4%

→ ↓0.6%

9 yrs80.8%

→ ↑3.0%

10 yrs83.8%

→ ↑2.7%

11 yrs86.5%

→ ↓4.6%

12 yrs81.9%

📊 View as table

Age	Pass Rate	Tests
5 yrs	83.2%	137
6 yrs	85.9%	135
7 yrs	87.6%	137
8 yrs	81.4%	129
9 yrs	80.8%	130
10 yrs	83.8%	136
11 yrs	86.5%	126
12 yrs	81.9%	127

Pass Rate Trend

How the 2004 Mercedes Sl500 Auto pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2016 (12 yrs)	81.9%	127
2015 (11 yrs)	86.5%	126
2014 (10 yrs)	83.8%	136
2013 (9 yrs)	80.8%	130
2012 (8 yrs)	81.4%	129
2011 (7 yrs)	87.6%	137
2010 (6 yrs)	85.9%	135
2009 (5 yrs)	83.2%	137

Year-by-Year MOT Results

2009

83.2%

Age (yrs) 5Tests 137Avg Mileage 34,795Top Failure Tyres — 8.0%

2010

85.9%

Age (yrs) 6Tests 135Avg Mileage 40,180Top Failure Tyres — 6.7%

2011

87.6%

Age (yrs) 7Tests 137Avg Mileage 44,915Top Failure Tyres — 5.1%

2012

81.4%

Age (yrs) 8Tests 129Avg Mileage 49,287Top Failure Tyres — 7.0%

2013

80.8%

Age (yrs) 9Tests 130Avg Mileage 52,526Top Failure Tyres — 14.6%

2014

83.8%

Age (yrs) 10Tests 136Avg Mileage 54,709Top Failure Tyres — 16.9%

2015

86.5%

Age (yrs) 11Tests 126Avg Mileage 57,443Top Failure Suspension — 9.5%

2016

81.9%

Age (yrs) 12Tests 127Avg Mileage 60,717Top Failure Brakes — 15.0%

MOT results for 2004 Mercedes Sl500 Auto by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	5	83.2%	137	34,795	Tyres — 8.0%
2010	6	85.9%	135	40,180	Tyres — 6.7%
2011	7	87.6%	137	44,915	Tyres — 5.1%
2012	8	81.4%	129	49,287	Tyres — 7.0%
2013	9	80.8%	130	52,526	Tyres — 14.6%
2014	10	83.8%	136	54,709	Tyres — 16.9%
2015	11	86.5%	126	57,443	Suspension — 9.5%
2016	12	81.9%	127	60,717	Brakes — 15.0%

Common MOT Failures

Top failure categories across all test years for 2004 Mercedes Sl500 Auto, with age trends.

Tyres

9.6%

↑ Increases with age

Suspension

7.5%

↑ Increases with age

Brakes

6.8%

↑ Increases with age

Lamps, Reflectors and Electrical Equipment

4.7%

↑ Increases with age

Registration Plates and VIN

3.7%

↑ 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	5.8% (5 yrs)	15.0% (12 yrs)	+9.2%	🔴 ↑
Tyres	8.0% (5 yrs)	13.4% (12 yrs)	+5.4%	🔴 ↑
Suspension	4.4% (5 yrs)	9.4% (12 yrs)	+5.0%	🔴 ↑
Lamps, Reflectors and Electrical Equipment	2.9% (5 yrs)	7.9% (12 yrs)	+5.0%	🔴 ↑
Driver's View of the Road	2.2% (5 yrs)	3.1% (12 yrs)	+0.9%	⚪ —

Other Manufacture Years

1995 1999 2002 2003 2004 2005 2006 2007

← Back to Mercedes Sl500 Auto overview

Looking for the best year to buy? See the full comparison on the Mercedes Sl500 Auto page →

About This Data

This page shows how Mercedes Sl500 Auto cars manufactured in 2004 perform at MOT as they age. Data spans from 2009 to 2016, covering 1,057 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.