2005 Mercedes B 170 — MOT History by Age

How cars manufactured in 2005 perform at MOT as they age

21 years

Current Age

54.2%

Latest Pass Rate

2,778

Total Tests (All Years)

89,921 mi

Avg Mileage (Latest)

Data from official DVSA MOT testing records

Compared to Average at Age 15

This car: 54.2%

Average: 52.4%

✅ 1.8% above average (11197 models compared)

How This Car Ages

Pass rate progression for the 2005 Mercedes B 170 as it ages.

4 yrs85.8%

→ ↓4.3%

5 yrs81.5%

→ ↓4.5%

6 yrs77.0%

→ ↓4.2%

7 yrs72.8%

→ ↑0.5%

8 yrs73.3%

→ ↓7.4%

9 yrs65.9%

→ ↑3.2%

10 yrs69.1%

→ ↓4.3%

11 yrs64.8%

→ ↓2.6%

12 yrs62.2%

→ ↓6.6%

13 yrs55.6%

→ ↑2.0%

14 yrs57.6%

→ ↓3.4%

15 yrs54.2%

📊 View as table

Age	Pass Rate	Tests
4 yrs	85.8%	324
5 yrs	81.5%	319
6 yrs	77.0%	318
7 yrs	72.8%	323
8 yrs	73.3%	326
9 yrs	65.9%	311
10 yrs	69.1%	304
11 yrs	64.8%	310
12 yrs	62.2%	82
13 yrs	55.6%	54
14 yrs	57.6%	59
15 yrs	54.2%	48

Pass Rate Trend

How the 2005 Mercedes B 170 pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2020 (15 yrs)	54.2%	48
2019 (14 yrs)	57.6%	59
2018 (13 yrs)	55.6%	54
2017 (12 yrs)	62.2%	82
2016 (11 yrs)	64.8%	310
2015 (10 yrs)	69.1%	304
2014 (9 yrs)	65.9%	311
2013 (8 yrs)	73.3%	326
2012 (7 yrs)	72.8%	323
2011 (6 yrs)	77%	318
2010 (5 yrs)	81.5%	319
2009 (4 yrs)	85.8%	324

Year-by-Year MOT Results

2009

85.8%

Age (yrs) 4Tests 324Avg Mileage 29,831Top Failure Lamps, Reflectors and Electrical Equipment — 6.2%

2010

81.5%

Age (yrs) 5Tests 319Avg Mileage 36,641Top Failure Lamps, Reflectors and Electrical Equipment — 7.8%

2011

77.0%

Age (yrs) 6Tests 318Avg Mileage 42,468Top Failure Lamps, Reflectors and Electrical Equipment — 10.4%

2012

72.8%

Age (yrs) 7Tests 323Avg Mileage 48,720Top Failure Lamps, Reflectors and Electrical Equipment — 15.5%

2013

73.3%

Age (yrs) 8Tests 326Avg Mileage 56,117Top Failure Lamps, Reflectors and Electrical Equipment — 23.0%

2014

65.9%

Age (yrs) 9Tests 311Avg Mileage 61,451Top Failure Lamps, Reflectors and Electrical Equipment — 25.4%

2015

69.1%

Age (yrs) 10Tests 304Avg Mileage 68,446Top Failure Brakes — 24.7%

2016High Fail Rate

64.8%

Age (yrs) 11Tests 310Avg Mileage 74,174Top Failure Brakes — 30.0%

2017High Fail Rate

62.2%

Age (yrs) 12Tests 82Avg Mileage 74,740Top Failure Suspension — 32.9%

2018High Fail Rate

55.6%

Age (yrs) 13Tests 54Avg Mileage 77,723Top Failure Brakes — 53.7%

2019High Fail Rate

57.6%

Age (yrs) 14Tests 59Avg Mileage 87,538Top Failure Brakes — 40.7%

2020High Fail Rate

54.2%

Age (yrs) 15Tests 48Avg Mileage 89,921Top Failure Brakes — 68.8%

MOT results for 2005 Mercedes B 170 by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	4	85.8%	324	29,831	Lamps, Reflectors and Electrical Equipment — 6.2%
2010	5	81.5%	319	36,641	Lamps, Reflectors and Electrical Equipment — 7.8%
2011	6	77.0%	318	42,468	Lamps, Reflectors and Electrical Equipment — 10.4%
2012	7	72.8%	323	48,720	Lamps, Reflectors and Electrical Equipment — 15.5%
2013	8	73.3%	326	56,117	Lamps, Reflectors and Electrical Equipment — 23.0%
2014	9	65.9%	311	61,451	Lamps, Reflectors and Electrical Equipment — 25.4%
2015	10	69.1%	304	68,446	Brakes — 24.7%
2016	11	64.8%	310	74,174	Brakes — 30.0%
2017	12	62.2%	82	74,740	Suspension — 32.9%
2018	13	55.6%	54	77,723	Brakes — 53.7%
2019	14	57.6%	59	87,538	Brakes — 40.7%
2020	15	54.2%	48	89,921	Brakes — 68.8%

Common MOT Failures

Top failure categories across all test years for 2005 Mercedes B 170, with age trends.

Lamps, reflectors and electrical equipment

29.5%

— Consistent

Brakes

23.2%

↑ Increases with age

Suspension

20.2%

↑ Increases with age

Lamps, Reflectors and Electrical Equipment

17.2%

↑ Increases with age

Visibility

16.7%

— Consistent

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

Category	At Youngest	At Oldest	Change	Trend
Brakes	3.7% (4 yrs)	68.8% (15 yrs)	+65.1%	🔴 ↑
Tyres	4.6% (4 yrs)	22.9% (15 yrs)	+18.3%	🔴 ↑

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 2005 perform at MOT as they age. Data spans from 2009 to 2020, covering 2,778 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.