1998 Mercedes Sl 320 — MOT History by Age

How cars manufactured in 1998 perform at MOT as they age

28 years

Current Age

77.5%

Latest Pass Rate

6,017

Total Tests (All Years)

89,512 mi

Avg Mileage (Latest)

Data from official DVSA MOT testing records

Insufficient data for same-age comparison.

How This Car Ages

Pass rate progression for the 1998 Mercedes Sl 320 as it ages.

11 yrs78.6%

→ ↓2.7%

12 yrs75.9%

→ ↑3.8%

13 yrs79.7%

→ ↓2.5%

14 yrs77.2%

→ ↓1.1%

15 yrs76.1%

→ ↑3.7%

16 yrs79.8%

→ ↑1.5%

17 yrs81.3%

→ ↓3.7%

18 yrs77.6%

→ ↓2.3%

19 yrs75.3%

→ ↑4.3%

20 yrs79.6%

→ ↓3.6%

21 yrs76.0%

→ ↑1.5%

22 yrs77.5%

📊 View as table

Age	Pass Rate	Tests
11 yrs	78.6%	640
12 yrs	75.9%	634
13 yrs	79.7%	634
14 yrs	77.2%	588
15 yrs	76.1%	594
16 yrs	79.8%	598
17 yrs	81.3%	595
18 yrs	77.6%	575
19 yrs	75.3%	397
20 yrs	79.6%	269
21 yrs	76.0%	271
22 yrs	77.5%	222

Pass Rate Trend

How the 1998 Mercedes Sl 320 pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2020 (22 yrs)	77.5%	222
2019 (21 yrs)	76%	271
2018 (20 yrs)	79.6%	269
2017 (19 yrs)	75.3%	397
2016 (18 yrs)	77.6%	575
2015 (17 yrs)	81.3%	595
2014 (16 yrs)	79.8%	598
2013 (15 yrs)	76.1%	594
2012 (14 yrs)	77.2%	588
2011 (13 yrs)	79.7%	634
2010 (12 yrs)	75.9%	634
2009 (11 yrs)	78.6%	640

Year-by-Year MOT Results

2009

78.6%

Age (yrs) 11Tests 640Avg Mileage 67,255Top Failure Lamps, Reflectors and Electrical Equipment — 10.2%

2010

75.9%

Age (yrs) 12Tests 634Avg Mileage 71,455Top Failure Lamps, Reflectors and Electrical Equipment — 13.6%

2011

79.7%

Age (yrs) 13Tests 634Avg Mileage 75,119Top Failure Lamps, Reflectors and Electrical Equipment — 9.8%

2012

77.2%

Age (yrs) 14Tests 588Avg Mileage 76,756Top Failure Lamps, Reflectors and Electrical Equipment — 11.9%

2013

76.1%

Age (yrs) 15Tests 594Avg Mileage 79,035Top Failure Brakes — 21.0%

2014

79.8%

Age (yrs) 16Tests 598Avg Mileage 80,856Top Failure Brakes — 22.6%

2015

81.3%

Age (yrs) 17Tests 595Avg Mileage 83,318Top Failure Brakes — 19.5%

2016

77.6%

Age (yrs) 18Tests 575Avg Mileage 84,754Top Failure Lamps, Reflectors and Electrical Equipment — 20.3%

2017

75.3%

Age (yrs) 19Tests 397Avg Mileage 85,650Top Failure Lamps, Reflectors and Electrical Equipment — 25.4%

2018

79.6%

Age (yrs) 20Tests 269Avg Mileage 87,141Top Failure Suspension — 18.6%

2019

76.0%

Age (yrs) 21Tests 271Avg Mileage 88,371Top Failure Brakes — 30.3%

2020

77.5%

Age (yrs) 22Tests 222Avg Mileage 89,512Top Failure Lamps, reflectors and electrical equipment — 32.0%

MOT results for 1998 Mercedes Sl 320 by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	11	78.6%	640	67,255	Lamps, Reflectors and Electrical Equipment — 10.2%
2010	12	75.9%	634	71,455	Lamps, Reflectors and Electrical Equipment — 13.6%
2011	13	79.7%	634	75,119	Lamps, Reflectors and Electrical Equipment — 9.8%
2012	14	77.2%	588	76,756	Lamps, Reflectors and Electrical Equipment — 11.9%
2013	15	76.1%	594	79,035	Brakes — 21.0%
2014	16	79.8%	598	80,856	Brakes — 22.6%
2015	17	81.3%	595	83,318	Brakes — 19.5%
2016	18	77.6%	575	84,754	Lamps, Reflectors and Electrical Equipment — 20.3%
2017	19	75.3%	397	85,650	Lamps, Reflectors and Electrical Equipment — 25.4%
2018	20	79.6%	269	87,141	Suspension — 18.6%
2019	21	76.0%	271	88,371	Brakes — 30.3%
2020	22	77.5%	222	89,512	Lamps, reflectors and electrical equipment — 32.0%

Common MOT Failures

Top failure categories across all test years for 1998 Mercedes Sl 320, with age trends.

Lamps, reflectors and electrical equipment

22.6%

↑ Increases with age

Brakes

18.3%

↑ Increases with age

Lamps, Reflectors and Electrical Equipment

15.7%

— Consistent

Suspension

13.8%

↑ Increases with age

Noise, emissions and leaks

11.0%

— Consistent

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

Category	At Youngest	At Oldest	Change	Trend
Brakes	9.7% (11 yrs)	30.6% (22 yrs)	+20.9%	🔴 ↑
Suspension	3.9% (11 yrs)	22.5% (22 yrs)	+18.6%	🔴 ↑
Tyres	7.2% (11 yrs)	13.1% (22 yrs)	+5.9%	🔴 ↑

Other Manufacture Years

1993 1994 1995 1996 1997 1998 1999 2000 2001

← Back to Mercedes Sl 320 overview

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

About This Data

This page shows how Mercedes Sl 320 cars manufactured in 1998 perform at MOT as they age. Data spans from 2009 to 2020, covering 6,017 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.