2004 Mercedes Sl 350 Auto — MOT History by Age

How cars manufactured in 2004 perform at MOT as they age

22 years

Current Age

78.5%

Latest Pass Rate

1,213

Total Tests (All Years)

65,209 mi

Avg Mileage (Latest)

Data from official DVSA MOT testing records

Compared to Average at Age 12

This car: 78.5%

Average: 54.3%

✅ 24.2% above average (13966 models compared)

How This Car Ages

Pass rate progression for the 2004 Mercedes Sl 350 Auto as it ages.

5 yrs85.9%

→ ↓3.0%

6 yrs82.9%

→ ↑6.4%

7 yrs89.3%

→ ↓7.8%

8 yrs81.5%

→ ↑4.0%

9 yrs85.5%

→ ↓3.1%

10 yrs82.4%

→ ↓3.1%

11 yrs79.3%

→ ↓0.8%

12 yrs78.5%

📊 View as table

Age	Pass Rate	Tests
5 yrs	85.9%	156
6 yrs	82.9%	158
7 yrs	89.3%	149
8 yrs	81.5%	151
9 yrs	85.5%	152
10 yrs	82.4%	148
11 yrs	79.3%	150
12 yrs	78.5%	149

Pass Rate Trend

How the 2004 Mercedes Sl 350 Auto pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2016 (12 yrs)	78.5%	149
2015 (11 yrs)	79.3%	150
2014 (10 yrs)	82.4%	148
2013 (9 yrs)	85.5%	152
2012 (8 yrs)	81.5%	151
2011 (7 yrs)	89.3%	149
2010 (6 yrs)	82.9%	158
2009 (5 yrs)	85.9%	156

Year-by-Year MOT Results

2009

85.9%

Age (yrs) 5Tests 156Avg Mileage 33,744Top Failure Tyres — 7.7%

2010

82.9%

Age (yrs) 6Tests 158Avg Mileage 39,640Top Failure Tyres — 8.2%

2011

89.3%

Age (yrs) 7Tests 149Avg Mileage 43,174Top Failure Tyres — 5.4%

2012

81.5%

Age (yrs) 8Tests 151Avg Mileage 48,688Top Failure Suspension — 8.6%

2013

85.5%

Age (yrs) 9Tests 152Avg Mileage 53,112Top Failure Tyres — 10.5%

2014

82.4%

Age (yrs) 10Tests 148Avg Mileage 55,268Top Failure Tyres — 14.9%

2015

79.3%

Age (yrs) 11Tests 150Avg Mileage 60,770Top Failure Tyres — 22.0%

2016

78.5%

Age (yrs) 12Tests 149Avg Mileage 65,209Top Failure Tyres — 22.1%

MOT results for 2004 Mercedes Sl 350 Auto by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	5	85.9%	156	33,744	Tyres — 7.7%
2010	6	82.9%	158	39,640	Tyres — 8.2%
2011	7	89.3%	149	43,174	Tyres — 5.4%
2012	8	81.5%	151	48,688	Suspension — 8.6%
2013	9	85.5%	152	53,112	Tyres — 10.5%
2014	10	82.4%	148	55,268	Tyres — 14.9%
2015	11	79.3%	150	60,770	Tyres — 22.0%
2016	12	78.5%	149	65,209	Tyres — 22.1%

Common MOT Failures

Top failure categories across all test years for 2004 Mercedes Sl 350 Auto, with age trends.

Tyres

12.4%

↑ Increases with age

Suspension

9.2%

↑ Increases with age

Brakes

7.3%

↑ Increases with age

Lamps, Reflectors and Electrical Equipment

5.6%

— Consistent

Driver's View of the Road

3.6%

— Consistent

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

Category	At Youngest	At Oldest	Change	Trend
Suspension	1.9% (5 yrs)	16.8% (12 yrs)	+14.9%	🔴 ↑
Tyres	7.7% (5 yrs)	22.1% (12 yrs)	+14.4%	🔴 ↑
Brakes	1.3% (5 yrs)	13.4% (12 yrs)	+12.1%	🔴 ↑
Lamps, Reflectors and Electrical Equipment	7.1% (5 yrs)	6.7% (12 yrs)	-0.4%	⚪ —

Other Manufacture Years

2003 2004 2005

← Back to Mercedes Sl 350 Auto overview

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About This Data

This page shows how Mercedes Sl 350 Auto cars manufactured in 2004 perform at MOT as they age. Data spans from 2009 to 2016, covering 1,213 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.