2004 Mercedes Sl 55 — MOT History by Age

How cars manufactured in 2004 perform at MOT as they age

22 years

Current Age

77.7%

Latest Pass Rate

3,967

Total Tests (All Years)

64,982 mi

Avg Mileage (Latest)

Data from official DVSA MOT testing records

Compared to Average at Age 16

This car: 77.7%

Average: 52.7%

✅ 25.0% above average (10212 models compared)

How This Car Ages

Pass rate progression for the 2004 Mercedes Sl 55 as it ages.

5 yrs83.2%

→ ↑0.7%

6 yrs83.9%

→ ↑1.8%

7 yrs85.7%

→ ↓3.6%

8 yrs82.1%

→ ↓2.3%

9 yrs79.8%

→ ↑2.7%

10 yrs82.5%

→ ↓2.6%

11 yrs79.9%

→ ↑2.9%

12 yrs82.8%

→ ↑0.1%

13 yrs82.9%

→ ↓1.5%

14 yrs81.4%

→ ↓2.8%

15 yrs78.6%

→ ↓0.9%

16 yrs77.7%

📊 View as table

Age	Pass Rate	Tests
5 yrs	83.2%	410
6 yrs	83.9%	415
7 yrs	85.7%	426
8 yrs	82.1%	436
9 yrs	79.8%	420
10 yrs	82.5%	422
11 yrs	79.9%	423
12 yrs	82.8%	406
13 yrs	82.9%	199
14 yrs	81.4%	140
15 yrs	78.6%	140
16 yrs	77.7%	130

Pass Rate Trend

How the 2004 Mercedes Sl 55 pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2020 (16 yrs)	77.7%	130
2019 (15 yrs)	78.6%	140
2018 (14 yrs)	81.4%	140
2017 (13 yrs)	82.9%	199
2016 (12 yrs)	82.8%	406
2015 (11 yrs)	79.9%	423
2014 (10 yrs)	82.5%	422
2013 (9 yrs)	79.8%	420
2012 (8 yrs)	82.1%	436
2011 (7 yrs)	85.7%	426
2010 (6 yrs)	83.9%	415
2009 (5 yrs)	83.2%	410

Year-by-Year MOT Results

2009

83.2%

Age (yrs) 5Tests 410Avg Mileage 34,848Top Failure Tyres — 8.8%

2010

83.9%

Age (yrs) 6Tests 415Avg Mileage 40,933Top Failure Tyres — 9.4%

2011

85.7%

Age (yrs) 7Tests 426Avg Mileage 44,670Top Failure Tyres — 6.6%

2012

82.1%

Age (yrs) 8Tests 436Avg Mileage 49,723Top Failure Tyres — 7.8%

2013

79.8%

Age (yrs) 9Tests 420Avg Mileage 53,176Top Failure Tyres — 17.6%

2014

82.5%

Age (yrs) 10Tests 422Avg Mileage 54,409Top Failure Suspension — 16.8%

2015

79.9%

Age (yrs) 11Tests 423Avg Mileage 60,077Top Failure Suspension — 15.1%

2016

82.8%

Age (yrs) 12Tests 406Avg Mileage 61,574Top Failure Tyres — 12.6%

2017

82.9%

Age (yrs) 13Tests 199Avg Mileage 59,794Top Failure Tyres — 17.1%

2018

81.4%

Age (yrs) 14Tests 140Avg Mileage 61,490Top Failure Brakes — 17.9%

2019

78.6%

Age (yrs) 15Tests 140Avg Mileage 61,123Top Failure Brakes — 32.9%

2020

77.7%

Age (yrs) 16Tests 130Avg Mileage 64,982Top Failure Brakes — 23.1%

MOT results for 2004 Mercedes Sl 55 by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	5	83.2%	410	34,848	Tyres — 8.8%
2010	6	83.9%	415	40,933	Tyres — 9.4%
2011	7	85.7%	426	44,670	Tyres — 6.6%
2012	8	82.1%	436	49,723	Tyres — 7.8%
2013	9	79.8%	420	53,176	Tyres — 17.6%
2014	10	82.5%	422	54,409	Suspension — 16.8%
2015	11	79.9%	423	60,077	Suspension — 15.1%
2016	12	82.8%	406	61,574	Tyres — 12.6%
2017	13	82.9%	199	59,794	Tyres — 17.1%
2018	14	81.4%	140	61,490	Brakes — 17.9%
2019	15	78.6%	140	61,123	Brakes — 32.9%
2020	16	77.7%	130	64,982	Brakes — 23.1%

Common MOT Failures

Top failure categories across all test years for 2004 Mercedes Sl 55, with age trends.

Brakes

12.9%

↑ Increases with age

Tyres

12.8%

↑ Increases with age

Suspension

10.3%

↑ Increases with age

Lamps, Reflectors and Electrical Equipment

5.0%

— Consistent

Noise, emissions and leaks

4.9%

— Consistent

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

Category	At Youngest	At Oldest	Change	Trend
Brakes	4.1% (5 yrs)	23.1% (16 yrs)	+19.0%	🔴 ↑
Suspension	3.2% (5 yrs)	8.5% (16 yrs)	+5.3%	🔴 ↑
Tyres	8.8% (5 yrs)	13.8% (16 yrs)	+5.0%	🔴 ↑

Other Manufacture Years

2002 2003 2004 2005 2006 2007

← Back to Mercedes Sl 55 overview

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About This Data

This page shows how Mercedes Sl 55 cars manufactured in 2004 perform at MOT as they age. Data spans from 2009 to 2020, covering 3,967 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.