2003 Mercedes Sl 600 — MOT History by Age

How cars manufactured in 2003 perform at MOT as they age

23 years

Current Age

85.5%

Latest Pass Rate

506

Total Tests (All Years)

62,493 mi

Avg Mileage (Latest)

Data from official DVSA MOT testing records

Best vintage for Sl 600

Compared to Average at Age 13

This car: 85.5%

Average: 53.1%

✅ 32.4% above average (13033 models compared)

How This Car Ages

Pass rate progression for the 2003 Mercedes Sl 600 as it ages.

6 yrs88.6%

→ ↓5.3%

7 yrs83.3%

→ ↑1.9%

8 yrs85.2%

→ ↓6.5%

9 yrs78.7%

→ ↓4.1%

10 yrs74.6%

→ ↑17.6%

11 yrs92.2%

→ ↓6.5%

12 yrs85.7%

→ ↓0.2%

13 yrs85.5%

📊 View as table

Age	Pass Rate	Tests
6 yrs	88.6%	70
7 yrs	83.3%	66
8 yrs	85.2%	61
9 yrs	78.7%	61
10 yrs	74.6%	59
11 yrs	92.2%	64
12 yrs	85.7%	63
13 yrs	85.5%	62

Pass Rate Trend

How the 2003 Mercedes Sl 600 pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2016 (13 yrs)	85.5%	62
2015 (12 yrs)	85.7%	63
2014 (11 yrs)	92.2%	64
2013 (10 yrs)	74.6%	59
2012 (9 yrs)	78.7%	61
2011 (8 yrs)	85.2%	61
2010 (7 yrs)	83.3%	66
2009 (6 yrs)	88.6%	70

Year-by-Year MOT Results

2009

88.6%

Age (yrs) 6Tests 70Avg Mileage 40,666Top Failure Brakes — 5.7%

2010

83.3%

Age (yrs) 7Tests 66Avg Mileage 47,849Top Failure Suspension — 10.6%

2011

85.2%

Age (yrs) 8Tests 61Avg Mileage 50,504Top Failure Suspension — 6.6%

2012

78.7%

Age (yrs) 9Tests 61Avg Mileage 53,294Top Failure Tyres — 11.5%

2013

74.6%

Age (yrs) 10Tests 59Avg Mileage 57,149Top Failure Tyres — 25.4%

2014

92.2%

Age (yrs) 11Tests 64Avg Mileage 58,519Top Failure Tyres — 9.4%

2015

85.7%

Age (yrs) 12Tests 63Avg Mileage 63,962Top Failure Tyres — 9.5%

2016

85.5%

Age (yrs) 13Tests 62Avg Mileage 62,493Top Failure Tyres — 14.5%

MOT results for 2003 Mercedes Sl 600 by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	6	88.6%	70	40,666	Brakes — 5.7%
2010	7	83.3%	66	47,849	Suspension — 10.6%
2011	8	85.2%	61	50,504	Suspension — 6.6%
2012	9	78.7%	61	53,294	Tyres — 11.5%
2013	10	74.6%	59	57,149	Tyres — 25.4%
2014	11	92.2%	64	58,519	Tyres — 9.4%
2015	12	85.7%	63	63,962	Tyres — 9.5%
2016	13	85.5%	62	62,493	Tyres — 14.5%

Common MOT Failures

Top failure categories across all test years for 2003 Mercedes Sl 600, with age trends.

Tyres

11.3%

↑ Increases with age

Registration Plates and VIN

10.2%

— Consistent

Brakes

8.2%

↑ Increases with age

Suspension

7.9%

↑ Increases with age

Steering

6.5%

— Consistent

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

Category	At Youngest	At Oldest	Change	Trend
Tyres	4.3% (6 yrs)	14.5% (13 yrs)	+10.2%	🔴 ↑
Brakes	5.7% (6 yrs)	12.9% (13 yrs)	+7.2%	🔴 ↑
Suspension	2.9% (6 yrs)	8.1% (13 yrs)	+5.2%	🔴 ↑

Other Manufacture Years

2003 2004

← Back to Mercedes Sl 600 overview

Looking for the best year to buy? See the full comparison on the Mercedes Sl 600 page →

About This Data

This page shows how Mercedes Sl 600 cars manufactured in 2003 perform at MOT as they age. Data spans from 2009 to 2016, covering 506 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.