2004 Mercedes S 350 — MOT History by Age

How cars manufactured in 2004 perform at MOT as they age

22 years

Current Age

71.2%

Latest Pass Rate

3,387

Total Tests (All Years)

107,566 mi

Avg Mileage (Latest)

Data from official DVSA MOT testing records

Compared to Average at Age 16

This car: 71.2%

Average: 52.7%

✅ 18.5% above average (10212 models compared)

How This Car Ages

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

5 yrs76.2%

→ ↑1.5%

6 yrs77.7%

→ ↓2.6%

7 yrs75.1%

→ ↑0.6%

8 yrs75.7%

→ ↓2.6%

9 yrs73.1%

→ ↓4.9%

10 yrs68.2%

→ ↑2.5%

11 yrs70.7%

→ ↑1.6%

12 yrs72.3%

→ ↓1.1%

13 yrs71.2%

→ ↓1.9%

14 yrs69.3%

→ ↓0.8%

15 yrs68.5%

→ ↑2.7%

16 yrs71.2%

📊 View as table

Age	Pass Rate	Tests
5 yrs	76.2%	374
6 yrs	77.7%	373
7 yrs	75.1%	353
8 yrs	75.7%	346
9 yrs	73.1%	335
10 yrs	68.2%	318
11 yrs	70.7%	294
12 yrs	72.3%	303
13 yrs	71.2%	236
14 yrs	69.3%	163
15 yrs	68.5%	146
16 yrs	71.2%	146

Pass Rate Trend

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

📊 View as table

Built	Pass Rate	Tests
2020 (16 yrs)	71.2%	146
2019 (15 yrs)	68.5%	146
2018 (14 yrs)	69.3%	163
2017 (13 yrs)	71.2%	236
2016 (12 yrs)	72.3%	303
2015 (11 yrs)	70.7%	294
2014 (10 yrs)	68.2%	318
2013 (9 yrs)	73.1%	335
2012 (8 yrs)	75.7%	346
2011 (7 yrs)	75.1%	353
2010 (6 yrs)	77.7%	373
2009 (5 yrs)	76.2%	374

Year-by-Year MOT Results

2009

76.2%

Age (yrs) 5Tests 374Avg Mileage 56,747Top Failure Tyres — 14.7%

2010

77.7%

Age (yrs) 6Tests 373Avg Mileage 68,584Top Failure Tyres — 9.9%

2011

75.1%

Age (yrs) 7Tests 353Avg Mileage 72,097Top Failure Tyres — 12.5%

2012

75.7%

Age (yrs) 8Tests 346Avg Mileage 78,002Top Failure Lamps, Reflectors and Electrical Equipment — 11.0%

2013

73.1%

Age (yrs) 9Tests 335Avg Mileage 81,757Top Failure Tyres — 28.1%

2014

68.2%

Age (yrs) 10Tests 318Avg Mileage 88,469Top Failure Brakes — 30.2%

2015

70.7%

Age (yrs) 11Tests 294Avg Mileage 91,888Top Failure Brakes — 28.9%

2016

72.3%

Age (yrs) 12Tests 303Avg Mileage 100,708Top Failure Brakes — 25.7%

2017

71.2%

Age (yrs) 13Tests 236Avg Mileage 102,001Top Failure Brakes — 25.0%

2018

69.3%

Age (yrs) 14Tests 163Avg Mileage 106,097Top Failure Brakes — 36.2%

2019

68.5%

Age (yrs) 15Tests 146Avg Mileage 107,186Top Failure Brakes — 34.2%

2020

71.2%

Age (yrs) 16Tests 146Avg Mileage 107,566Top Failure Brakes — 30.1%

MOT results for 2004 Mercedes S 350 by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	5	76.2%	374	56,747	Tyres — 14.7%
2010	6	77.7%	373	68,584	Tyres — 9.9%
2011	7	75.1%	353	72,097	Tyres — 12.5%
2012	8	75.7%	346	78,002	Lamps, Reflectors and Electrical Equipment — 11.0%
2013	9	73.1%	335	81,757	Tyres — 28.1%
2014	10	68.2%	318	88,469	Brakes — 30.2%
2015	11	70.7%	294	91,888	Brakes — 28.9%
2016	12	72.3%	303	100,708	Brakes — 25.7%
2017	13	71.2%	236	102,001	Brakes — 25.0%
2018	14	69.3%	163	106,097	Brakes — 36.2%
2019	15	68.5%	146	107,186	Brakes — 34.2%
2020	16	71.2%	146	107,566	Brakes — 30.1%

Common MOT Failures

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

Brakes

21.5%

↑ Increases with age

Tyres

21.4%

↑ Increases with age

Lamps, reflectors and electrical equipment

19.9%

↑ Increases with age

Suspension

15.4%

↑ Increases with age

Lamps, Reflectors and Electrical Equipment

14.7%

— Consistent

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

Category	At Youngest	At Oldest	Change	Trend
Brakes	7.0% (5 yrs)	30.1% (16 yrs)	+23.1%	🔴 ↑
Suspension	3.7% (5 yrs)	22.6% (16 yrs)	+18.9%	🔴 ↑
Tyres	14.7% (5 yrs)	29.5% (16 yrs)	+14.8%	🔴 ↑

Other Manufacture Years

2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014

← Back to Mercedes S 350 overview

Looking for the best year to buy? See the full comparison on the Mercedes S 350 page →

About This Data

This page shows how Mercedes S 350 cars manufactured in 2004 perform at MOT as they age. Data spans from 2009 to 2020, covering 3,387 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.