2008 Mercedes B 170 — MOT History by Age

How cars manufactured in 2008 perform at MOT as they age

18 years

Current Age

74.3%

Latest Pass Rate

4,110

Total Tests (All Years)

73,434 mi

Avg Mileage (Latest)

Data from official DVSA MOT testing records

Compared to Average at Age 12

This car: 74.3%

Average: 54.3%

✅ 20.0% above average (13966 models compared)

How This Car Ages

Pass rate progression for the 2008 Mercedes B 170 as it ages.

3 yrs86.7%

→ ↓0.4%

4 yrs86.3%

→ ↓5.0%

5 yrs81.3%

→ ↓1.1%

6 yrs80.2%

→ ↓3.7%

7 yrs76.5%

→ ↓4.2%

8 yrs72.3%

→ ↓6.2%

9 yrs66.1%

→ ↑4.2%

10 yrs70.3%

→ ↓2.0%

11 yrs68.3%

→ ↑6.0%

12 yrs74.3%

📊 View as table

Age	Pass Rate	Tests
3 yrs	86.7%	587
4 yrs	86.3%	591
5 yrs	81.3%	589
6 yrs	80.2%	581
7 yrs	76.5%	591
8 yrs	72.3%	573
9 yrs	66.1%	183
10 yrs	70.3%	128
11 yrs	68.3%	139
12 yrs	74.3%	148

Pass Rate Trend

How the 2008 Mercedes B 170 pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2020 (12 yrs)	74.3%	148
2019 (11 yrs)	68.3%	139
2018 (10 yrs)	70.3%	128
2017 (9 yrs)	66.1%	183
2016 (8 yrs)	72.3%	573
2015 (7 yrs)	76.5%	591
2014 (6 yrs)	80.2%	581
2013 (5 yrs)	81.3%	589
2012 (4 yrs)	86.3%	591
2011 (3 yrs)	86.7%	587

Year-by-Year MOT Results

2011

86.7%

Age (yrs) 3Tests 587Avg Mileage 22,203Top Failure Tyres — 6.6%

2012

86.3%

Age (yrs) 4Tests 591Avg Mileage 28,502Top Failure Lamps, Reflectors and Electrical Equipment — 7.3%

2013

81.3%

Age (yrs) 5Tests 589Avg Mileage 35,181Top Failure Lamps, Reflectors and Electrical Equipment — 17.7%

2014

80.2%

Age (yrs) 6Tests 581Avg Mileage 42,125Top Failure Lamps, Reflectors and Electrical Equipment — 15.5%

2015

76.5%

Age (yrs) 7Tests 591Avg Mileage 47,890Top Failure Lamps, Reflectors and Electrical Equipment — 20.5%

2016

72.3%

Age (yrs) 8Tests 573Avg Mileage 53,881Top Failure Brakes — 23.2%

2017

66.1%

Age (yrs) 9Tests 183Avg Mileage 58,982Top Failure Brakes — 33.3%

2018

70.3%

Age (yrs) 10Tests 128Avg Mileage 62,019Top Failure Brakes — 27.3%

2019

68.3%

Age (yrs) 11Tests 139Avg Mileage 67,574Top Failure Brakes — 28.8%

2020

74.3%

Age (yrs) 12Tests 148Avg Mileage 73,434Top Failure Brakes — 42.6%

MOT results for 2008 Mercedes B 170 by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2011	3	86.7%	587	22,203	Tyres — 6.6%
2012	4	86.3%	591	28,502	Lamps, Reflectors and Electrical Equipment — 7.3%
2013	5	81.3%	589	35,181	Lamps, Reflectors and Electrical Equipment — 17.7%
2014	6	80.2%	581	42,125	Lamps, Reflectors and Electrical Equipment — 15.5%
2015	7	76.5%	591	47,890	Lamps, Reflectors and Electrical Equipment — 20.5%
2016	8	72.3%	573	53,881	Brakes — 23.2%
2017	9	66.1%	183	58,982	Brakes — 33.3%
2018	10	70.3%	128	62,019	Brakes — 27.3%
2019	11	68.3%	139	67,574	Brakes — 28.8%
2020	12	74.3%	148	73,434	Brakes — 42.6%

Common MOT Failures

Top failure categories across all test years for 2008 Mercedes B 170, with age trends.

Brakes

19.7%

↑ Increases with age

Lamps, reflectors and electrical equipment

16.5%

— Consistent

Lamps, Reflectors and Electrical Equipment

15.8%

↑ Increases with age

Body, chassis, structure

13.4%

— Consistent

Tyres

12.8%

↑ 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	1.7% (3 yrs)	42.6% (12 yrs)	+40.9%	🔴 ↑
Suspension	1.4% (3 yrs)	16.9% (12 yrs)	+15.5%	🔴 ↑
Tyres	6.6% (3 yrs)	10.1% (12 yrs)	+3.5%	🔴 ↑

Other Manufacture Years

2005 2006 2007 2008 2009 2010

← Back to Mercedes B 170 overview

Looking for the best year to buy? See the full comparison on the Mercedes B 170 page →

About This Data

This page shows how Mercedes B 170 cars manufactured in 2008 perform at MOT as they age. Data spans from 2011 to 2020, covering 4,110 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.