2005 Mercedes S 320 — MOT History by Age

How cars manufactured in 2005 perform at MOT as they age

21 years

Current Age

66.8%

Latest Pass Rate

10,693

Total Tests (All Years)

130,210 mi

Avg Mileage (Latest)

Data from official DVSA MOT testing records

Compared to Average at Age 15

This car: 66.8%

Average: 52.4%

✅ 14.4% above average (11197 models compared)

How This Car Ages

Pass rate progression for the 2005 Mercedes S 320 as it ages.

4 yrs79.5%

→ ↓2.2%

5 yrs77.3%

→ ↓2.8%

6 yrs74.5%

→ ↓3.0%

7 yrs71.5%

→ ↑0.8%

8 yrs72.3%

→ ↓0.3%

9 yrs72.0%

→ ↓1.3%

10 yrs70.7%

→ ↓3.3%

11 yrs67.4%

→ ↑1.9%

12 yrs69.3%

→ ↑2.1%

13 yrs71.4%

→ ↓2.3%

14 yrs69.1%

→ ↓2.3%

15 yrs66.8%

📊 View as table

Age	Pass Rate	Tests
4 yrs	79.5%	1,192
5 yrs	77.3%	1,159
6 yrs	74.5%	1,146
7 yrs	71.5%	1,114
8 yrs	72.3%	1,060
9 yrs	72.0%	1,037
10 yrs	70.7%	1,027
11 yrs	67.4%	956
12 yrs	69.3%	717
13 yrs	71.4%	465
14 yrs	69.1%	437
15 yrs	66.8%	383

Pass Rate Trend

How the 2005 Mercedes S 320 pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2020 (15 yrs)	66.8%	383
2019 (14 yrs)	69.1%	437
2018 (13 yrs)	71.4%	465
2017 (12 yrs)	69.3%	717
2016 (11 yrs)	67.4%	956
2015 (10 yrs)	70.7%	1,027
2014 (9 yrs)	72%	1,037
2013 (8 yrs)	72.3%	1,060
2012 (7 yrs)	71.5%	1,114
2011 (6 yrs)	74.5%	1,146
2010 (5 yrs)	77.3%	1,159
2009 (4 yrs)	79.5%	1,192

Year-by-Year MOT Results

2009

79.5%

Age (yrs) 4Tests 1,192Avg Mileage 64,934Top Failure Tyres — 10.3%

2010

77.3%

Age (yrs) 5Tests 1,159Avg Mileage 78,125Top Failure Tyres — 11.6%

2011

74.5%

Age (yrs) 6Tests 1,146Avg Mileage 88,373Top Failure Tyres — 13.1%

2012

71.5%

Age (yrs) 7Tests 1,114Avg Mileage 94,441Top Failure Tyres — 13.7%

2013

72.3%

Age (yrs) 8Tests 1,060Avg Mileage 101,190Top Failure Brakes — 24.1%

2014

72.0%

Age (yrs) 9Tests 1,037Avg Mileage 109,201Top Failure Brakes — 30.6%

2015

70.7%

Age (yrs) 10Tests 1,027Avg Mileage 116,140Top Failure Brakes — 29.0%

2016

67.4%

Age (yrs) 11Tests 956Avg Mileage 120,520Top Failure Brakes — 31.1%

2017

69.3%

Age (yrs) 12Tests 717Avg Mileage 124,815Top Failure Brakes — 33.3%

2018

71.4%

Age (yrs) 13Tests 465Avg Mileage 125,726Top Failure Brakes — 28.4%

2019

69.1%

Age (yrs) 14Tests 437Avg Mileage 129,447Top Failure Brakes — 37.1%

2020

66.8%

Age (yrs) 15Tests 383Avg Mileage 130,210Top Failure Brakes — 45.7%

MOT results for 2005 Mercedes S 320 by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	4	79.5%	1,192	64,934	Tyres — 10.3%
2010	5	77.3%	1,159	78,125	Tyres — 11.6%
2011	6	74.5%	1,146	88,373	Tyres — 13.1%
2012	7	71.5%	1,114	94,441	Tyres — 13.7%
2013	8	72.3%	1,060	101,190	Brakes — 24.1%
2014	9	72.0%	1,037	109,201	Brakes — 30.6%
2015	10	70.7%	1,027	116,140	Brakes — 29.0%
2016	11	67.4%	956	120,520	Brakes — 31.1%
2017	12	69.3%	717	124,815	Brakes — 33.3%
2018	13	71.4%	465	125,726	Brakes — 28.4%
2019	14	69.1%	437	129,447	Brakes — 37.1%
2020	15	66.8%	383	130,210	Brakes — 45.7%

Common MOT Failures

Top failure categories across all test years for 2005 Mercedes S 320, with age trends.

Lamps, reflectors and electrical equipment

24.9%

↑ Increases with age

Brakes

24.2%

↑ Increases with age

Tyres

20.9%

↑ Increases with age

Suspension

17.8%

↑ Increases with age

Lamps, Reflectors and Electrical Equipment

16.2%

↑ Increases with age

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

Category	At Youngest	At Oldest	Change	Trend
Brakes	5.9% (4 yrs)	45.7% (15 yrs)	+39.8%	🔴 ↑
Suspension	3.9% (4 yrs)	28.7% (15 yrs)	+24.8%	🔴 ↑
Tyres	10.3% (4 yrs)	29.5% (15 yrs)	+19.2%	🔴 ↑

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 2005 perform at MOT as they age. Data spans from 2009 to 2020, covering 10,693 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.