2004 Mercedes Sl 500 — MOT History by Age

How cars manufactured in 2004 perform at MOT as they age

22 years

Current Age

83.1%

Latest Pass Rate

5,611

Total Tests (All Years)

69,943 mi

Avg Mileage (Latest)

Data from official DVSA MOT testing records

Compared to Average at Age 16

This car: 83.1%

Average: 52.7%

✅ 30.4% above average (10212 models compared)

How This Car Ages

Pass rate progression for the 2004 Mercedes Sl 500 as it ages.

5 yrs86.8%

→ ↓0.4%

6 yrs86.4%

→ ↓4.2%

7 yrs82.2%

→ ↑4.0%

8 yrs86.2%

→ ↓4.7%

9 yrs81.5%

→ ↑0.2%

10 yrs81.7%

→ ↓0.1%

11 yrs81.6%

→ ↓3.0%

12 yrs78.6%

→ ↓0.3%

13 yrs78.3%

→ ↑4.1%

14 yrs82.4%

→ ↑1.7%

15 yrs84.1%

→ ↓1.0%

16 yrs83.1%

📊 View as table

Age	Pass Rate	Tests
5 yrs	86.8%	524
6 yrs	86.4%	522
7 yrs	82.2%	529
8 yrs	86.2%	520
9 yrs	81.5%	531
10 yrs	81.7%	519
11 yrs	81.6%	515
12 yrs	78.6%	500
13 yrs	78.3%	480
14 yrs	82.4%	323
15 yrs	84.1%	353
16 yrs	83.1%	295

Pass Rate Trend

How the 2004 Mercedes Sl 500 pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2020 (16 yrs)	83.1%	295
2019 (15 yrs)	84.1%	353
2018 (14 yrs)	82.4%	323
2017 (13 yrs)	78.3%	480
2016 (12 yrs)	78.6%	500
2015 (11 yrs)	81.6%	515
2014 (10 yrs)	81.7%	519
2013 (9 yrs)	81.5%	531
2012 (8 yrs)	86.2%	520
2011 (7 yrs)	82.2%	529
2010 (6 yrs)	86.4%	522
2009 (5 yrs)	86.8%	524

Year-by-Year MOT Results

2009

86.8%

Age (yrs) 5Tests 524Avg Mileage 33,139Top Failure Tyres — 6.1%

2010

86.4%

Age (yrs) 6Tests 522Avg Mileage 37,998Top Failure Tyres — 7.1%

2011

82.2%

Age (yrs) 7Tests 529Avg Mileage 42,897Top Failure Tyres — 6.8%

2012

86.2%

Age (yrs) 8Tests 520Avg Mileage 46,564Top Failure Tyres — 5.4%

2013

81.5%

Age (yrs) 9Tests 531Avg Mileage 51,247Top Failure Suspension — 13.9%

2014

81.7%

Age (yrs) 10Tests 519Avg Mileage 53,732Top Failure Tyres — 17.5%

2015

81.6%

Age (yrs) 11Tests 515Avg Mileage 57,281Top Failure Tyres — 13.6%

2016

78.6%

Age (yrs) 12Tests 500Avg Mileage 60,011Top Failure Brakes — 22.2%

2017

78.3%

Age (yrs) 13Tests 480Avg Mileage 63,082Top Failure Brakes — 15.4%

2018

82.4%

Age (yrs) 14Tests 323Avg Mileage 68,087Top Failure Brakes — 20.1%

2019

84.1%

Age (yrs) 15Tests 353Avg Mileage 66,826Top Failure Brakes — 15.6%

2020

83.1%

Age (yrs) 16Tests 295Avg Mileage 69,943Top Failure Tyres — 17.6%

MOT results for 2004 Mercedes Sl 500 by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	5	86.8%	524	33,139	Tyres — 6.1%
2010	6	86.4%	522	37,998	Tyres — 7.1%
2011	7	82.2%	529	42,897	Tyres — 6.8%
2012	8	86.2%	520	46,564	Tyres — 5.4%
2013	9	81.5%	531	51,247	Suspension — 13.9%
2014	10	81.7%	519	53,732	Tyres — 17.5%
2015	11	81.6%	515	57,281	Tyres — 13.6%
2016	12	78.6%	500	60,011	Brakes — 22.2%
2017	13	78.3%	480	63,082	Brakes — 15.4%
2018	14	82.4%	323	68,087	Brakes — 20.1%
2019	15	84.1%	353	66,826	Brakes — 15.6%
2020	16	83.1%	295	69,943	Tyres — 17.6%

Common MOT Failures

Top failure categories across all test years for 2004 Mercedes Sl 500, with age trends.

Tyres

11.2%

↑ Increases with age

Brakes

11.1%

↑ Increases with age

Suspension

10.5%

↑ Increases with age

Lamps, Reflectors and Electrical Equipment

5.7%

— Consistent

Identification of the vehicle

3.7%

— Consistent

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

Category	At Youngest	At Oldest	Change	Trend
Brakes	3.2% (5 yrs)	17.6% (16 yrs)	+14.4%	🔴 ↑
Tyres	6.1% (5 yrs)	17.6% (16 yrs)	+11.5%	🔴 ↑
Suspension	2.5% (5 yrs)	12.5% (16 yrs)	+10.0%	🔴 ↑

Other Manufacture Years

Looking for the best year to buy? See the full comparison on the Mercedes Sl 500 page →

About This Data

This page shows how Mercedes Sl 500 cars manufactured in 2004 perform at MOT as they age. Data spans from 2009 to 2020, covering 5,611 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.