2004 Mercedes S 320 — MOT History by Age

How cars manufactured in 2004 perform at MOT as they age

22 years

Current Age

67.7%

Latest Pass Rate

11,590

Total Tests (All Years)

135,593 mi

Avg Mileage (Latest)

Data from official DVSA MOT testing records

Compared to Average at Age 16

This car: 67.7%

Average: 52.7%

✅ 15.0% above average (10212 models compared)

How This Car Ages

Pass rate progression for the 2004 Mercedes S 320 as it ages.

5 yrs76.8%

→ ↓1.7%

6 yrs75.1%

→ ↑0.9%

7 yrs76.0%

→ ↓3.5%

8 yrs72.5%

→ ↓5.8%

9 yrs66.7%

→ ↑1.8%

10 yrs68.5%

→ ↓1.0%

11 yrs67.5%

→ ↑1.3%

12 yrs68.8%

→ ↓1.2%

13 yrs67.6%

→ ↓1.5%

14 yrs66.1%

→ ↑2.0%

15 yrs68.1%

→ ↓0.4%

16 yrs67.7%

📊 View as table

Age	Pass Rate	Tests
5 yrs	76.8%	1,338
6 yrs	75.1%	1,289
7 yrs	76.0%	1,263
8 yrs	72.5%	1,242
9 yrs	66.7%	1,165
10 yrs	68.5%	1,081
11 yrs	67.5%	1,074
12 yrs	68.8%	1,001
13 yrs	67.6%	766
14 yrs	66.1%	511
15 yrs	68.1%	458
16 yrs	67.7%	402

Pass Rate Trend

How the 2004 Mercedes S 320 pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2020 (16 yrs)	67.7%	402
2019 (15 yrs)	68.1%	458
2018 (14 yrs)	66.1%	511
2017 (13 yrs)	67.6%	766
2016 (12 yrs)	68.8%	1,001
2015 (11 yrs)	67.5%	1,074
2014 (10 yrs)	68.5%	1,081
2013 (9 yrs)	66.7%	1,165
2012 (8 yrs)	72.5%	1,242
2011 (7 yrs)	76%	1,263
2010 (6 yrs)	75.1%	1,289
2009 (5 yrs)	76.8%	1,338

Year-by-Year MOT Results

2009

76.8%

Age (yrs) 5Tests 1,338Avg Mileage 80,824Top Failure Tyres — 12.7%

2010

75.1%

Age (yrs) 6Tests 1,289Avg Mileage 92,546Top Failure Tyres — 11.2%

2011

76.0%

Age (yrs) 7Tests 1,263Avg Mileage 101,586Top Failure Tyres — 11.6%

2012

72.5%

Age (yrs) 8Tests 1,242Avg Mileage 109,235Top Failure Tyres — 13.6%

2013

66.7%

Age (yrs) 9Tests 1,165Avg Mileage 114,882Top Failure Brakes — 32.7%

2014

68.5%

Age (yrs) 10Tests 1,081Avg Mileage 121,258Top Failure Brakes — 33.4%

2015

67.5%

Age (yrs) 11Tests 1,074Avg Mileage 127,032Top Failure Brakes — 37.6%

2016

68.8%

Age (yrs) 12Tests 1,001Avg Mileage 132,981Top Failure Brakes — 38.6%

2017

67.6%

Age (yrs) 13Tests 766Avg Mileage 131,567Top Failure Brakes — 42.3%

2018

66.1%

Age (yrs) 14Tests 511Avg Mileage 132,403Top Failure Brakes — 42.5%

2019

68.1%

Age (yrs) 15Tests 458Avg Mileage 135,022Top Failure Brakes — 38.9%

2020

67.7%

Age (yrs) 16Tests 402Avg Mileage 135,593Top Failure Brakes — 48.8%

MOT results for 2004 Mercedes S 320 by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	5	76.8%	1,338	80,824	Tyres — 12.7%
2010	6	75.1%	1,289	92,546	Tyres — 11.2%
2011	7	76.0%	1,263	101,586	Tyres — 11.6%
2012	8	72.5%	1,242	109,235	Tyres — 13.6%
2013	9	66.7%	1,165	114,882	Brakes — 32.7%
2014	10	68.5%	1,081	121,258	Brakes — 33.4%
2015	11	67.5%	1,074	127,032	Brakes — 37.6%
2016	12	68.8%	1,001	132,981	Brakes — 38.6%
2017	13	67.6%	766	131,567	Brakes — 42.3%
2018	14	66.1%	511	132,403	Brakes — 42.5%
2019	15	68.1%	458	135,022	Brakes — 38.9%
2020	16	67.7%	402	135,593	Brakes — 48.8%

Common MOT Failures

Top failure categories across all test years for 2004 Mercedes S 320, with age trends.

Brakes

29.3%

↑ Increases with age

Suspension

23.0%

↑ Increases with age

Lamps, reflectors and electrical equipment

22.9%

↑ Increases with age

Tyres

20.7%

↑ Increases with age

Lamps, Reflectors and Electrical Equipment

16.5%

— Consistent

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

Category	At Youngest	At Oldest	Change	Trend
Brakes	8.2% (5 yrs)	48.8% (16 yrs)	+40.6%	🔴 ↑
Suspension	5.2% (5 yrs)	35.1% (16 yrs)	+29.9%	🔴 ↑
Tyres	12.7% (5 yrs)	27.4% (16 yrs)	+14.7%	🔴 ↑

Other Manufacture Years

Looking for the best year to buy? See the full comparison on the Mercedes S 320 page →

About This Data

This page shows how Mercedes S 320 cars manufactured in 2004 perform at MOT as they age. Data spans from 2009 to 2020, covering 11,590 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.