2003 Mercedes Cl 500 — MOT History by Age

How cars manufactured in 2003 perform at MOT as they age

23 years

Current Age

71.7%

Latest Pass Rate

3,903

Total Tests (All Years)

107,720 mi

Avg Mileage (Latest)

Data from official DVSA MOT testing records

Compared to Average at Age 17

This car: 71.7%

Average: 53.5%

✅ 18.2% above average (9249 models compared)

How This Car Ages

Pass rate progression for the 2003 Mercedes Cl 500 as it ages.

6 yrs77.2%

→ ↓5.3%

7 yrs71.9%

→ ↑2.7%

8 yrs74.6%

→ ↓1.1%

9 yrs73.5%

→ ↓0.1%

10 yrs73.4%

→ ↓5.3%

11 yrs68.1%

→ ↑1.1%

12 yrs69.2%

→ ↑6.6%

13 yrs75.8%

→ ↓6.0%

14 yrs69.8%

→ ↑4.3%

15 yrs74.1%

→ ↓4.0%

16 yrs70.1%

→ ↑1.6%

17 yrs71.7%

📊 View as table

Age	Pass Rate	Tests
6 yrs	77.2%	381
7 yrs	71.9%	381
8 yrs	74.6%	394
9 yrs	73.5%	381
10 yrs	73.4%	379
11 yrs	68.1%	367
12 yrs	69.2%	370
13 yrs	75.8%	327
14 yrs	69.8%	321
15 yrs	74.1%	201
16 yrs	70.1%	214
17 yrs	71.7%	187

Pass Rate Trend

How the 2003 Mercedes Cl 500 pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2020 (17 yrs)	71.7%	187
2019 (16 yrs)	70.1%	214
2018 (15 yrs)	74.1%	201
2017 (14 yrs)	69.8%	321
2016 (13 yrs)	75.8%	327
2015 (12 yrs)	69.2%	370
2014 (11 yrs)	68.1%	367
2013 (10 yrs)	73.4%	379
2012 (9 yrs)	73.5%	381
2011 (8 yrs)	74.6%	394
2010 (7 yrs)	71.9%	381
2009 (6 yrs)	77.2%	381

Year-by-Year MOT Results

2009

77.2%

Age (yrs) 6Tests 381Avg Mileage 56,340Top Failure Tyres — 10.5%

2010

71.9%

Age (yrs) 7Tests 381Avg Mileage 63,906Top Failure Tyres — 15.0%

2011

74.6%

Age (yrs) 8Tests 394Avg Mileage 70,428Top Failure Tyres — 12.9%

2012

73.5%

Age (yrs) 9Tests 381Avg Mileage 76,800Top Failure Tyres — 10.8%

2013

73.4%

Age (yrs) 10Tests 379Avg Mileage 83,270Top Failure Tyres — 26.1%

2014

68.1%

Age (yrs) 11Tests 367Avg Mileage 87,345Top Failure Tyres — 35.7%

2015

69.2%

Age (yrs) 12Tests 370Avg Mileage 91,043Top Failure Tyres — 34.3%

2016

75.8%

Age (yrs) 13Tests 327Avg Mileage 94,595Top Failure Brakes — 30.6%

2017

69.8%

Age (yrs) 14Tests 321Avg Mileage 96,057Top Failure Suspension — 38.9%

2018

74.1%

Age (yrs) 15Tests 201Avg Mileage 98,419Top Failure Tyres — 23.9%

2019

70.1%

Age (yrs) 16Tests 214Avg Mileage 101,575Top Failure Brakes — 43.9%

2020

71.7%

Age (yrs) 17Tests 187Avg Mileage 107,720Top Failure Suspension — 34.2%

MOT results for 2003 Mercedes Cl 500 by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	6	77.2%	381	56,340	Tyres — 10.5%
2010	7	71.9%	381	63,906	Tyres — 15.0%
2011	8	74.6%	394	70,428	Tyres — 12.9%
2012	9	73.5%	381	76,800	Tyres — 10.8%
2013	10	73.4%	379	83,270	Tyres — 26.1%
2014	11	68.1%	367	87,345	Tyres — 35.7%
2015	12	69.2%	370	91,043	Tyres — 34.3%
2016	13	75.8%	327	94,595	Brakes — 30.6%
2017	14	69.8%	321	96,057	Suspension — 38.9%
2018	15	74.1%	201	98,419	Tyres — 23.9%
2019	16	70.1%	214	101,575	Brakes — 43.9%
2020	17	71.7%	187	107,720	Suspension — 34.2%

Common MOT Failures

Top failure categories across all test years for 2003 Mercedes Cl 500, with age trends.

Brakes

23.2%

↑ Increases with age

Tyres

22.7%

↑ Increases with age

Suspension

22.2%

↑ Increases with age

Lamps, reflectors and electrical equipment

14.8%

↑ Increases with age

Lamps, Reflectors and Electrical Equipment

12.2%

↑ 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	6.0% (6 yrs)	32.6% (17 yrs)	+26.6%	🔴 ↑
Suspension	8.4% (6 yrs)	34.2% (17 yrs)	+25.8%	🔴 ↑
Tyres	10.5% (6 yrs)	26.2% (17 yrs)	+15.7%	🔴 ↑

Other Manufacture Years

1997 1998 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012

← Back to Mercedes Cl 500 overview

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

About This Data

This page shows how Mercedes Cl 500 cars manufactured in 2003 perform at MOT as they age. Data spans from 2009 to 2020, covering 3,903 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.