1992 Mercedes 300 G Wagon — MOT History by Age

How cars manufactured in 1992 perform at MOT as they age

34 years

Current Age

52.9%

Latest Pass Rate

478

Total Tests (All Years)

151,850 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 1992 Mercedes 300 G Wagon as it ages.

17 yrs45.8%

→ ↑22.4%

18 yrs68.2%

→ ↓12.9%

19 yrs55.3%

→ ↑0.3%

20 yrs55.6%

→ ↑14.2%

21 yrs69.8%

→ ↓20.9%

22 yrs48.9%

→ ↑10.7%

23 yrs59.6%

→ ↓0.9%

24 yrs58.7%

→ ↓3.1%

25 yrs55.6%

→ ↑22.5%

27 yrs78.1%

→ ↓25.2%

28 yrs52.9%

📊 View as table

Age	Pass Rate	Tests
17 yrs	45.8%	48
18 yrs	68.2%	44
19 yrs	55.3%	47
20 yrs	55.6%	45
21 yrs	69.8%	43
22 yrs	48.9%	47
23 yrs	59.6%	47
24 yrs	58.7%	46
25 yrs	55.6%	45
27 yrs	78.1%	32
28 yrs	52.9%	34

Pass Rate Trend

How the 1992 Mercedes 300 G Wagon pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2020 (28 yrs)	52.9%	34
2019 (27 yrs)	78.1%	32
2017 (25 yrs)	55.6%	45
2016 (24 yrs)	58.7%	46
2015 (23 yrs)	59.6%	47
2014 (22 yrs)	48.9%	47
2013 (21 yrs)	69.8%	43
2012 (20 yrs)	55.6%	45
2011 (19 yrs)	55.3%	47
2010 (18 yrs)	68.2%	44
2009 (17 yrs)	45.8%	48

Year-by-Year MOT Results

2009High Fail Rate

45.8%

Age (yrs) 17Tests 48Avg Mileage 130,829Top Failure Brakes — 33.3%

2010

68.2%

Age (yrs) 18Tests 44Avg Mileage 136,049Top Failure Brakes — 20.5%

2011High Fail Rate

55.3%

Age (yrs) 19Tests 47Avg Mileage 136,018Top Failure Brakes — 27.7%

2012High Fail Rate

55.6%

Age (yrs) 20Tests 45Avg Mileage 130,407Top Failure Suspension — 22.2%

2013

69.8%

Age (yrs) 21Tests 43Avg Mileage 129,956Top Failure Suspension — 34.9%

2014High Fail Rate

48.9%

Age (yrs) 22Tests 47Avg Mileage 129,825Top Failure Brakes — 104.3%

2015High Fail Rate

59.6%

Age (yrs) 23Tests 47Avg Mileage 131,890Top Failure Brakes — 51.1%

2016High Fail Rate

58.7%

Age (yrs) 24Tests 46Avg Mileage 145,193Top Failure Lamps, Reflectors and Electrical Equipment — 69.6%

2017High Fail Rate

55.6%

Age (yrs) 25Tests 45Avg Mileage 146,175Top Failure Suspension — 57.8%

2019

78.1%

Age (yrs) 27Tests 32Avg Mileage 144,697Top Failure Suspension — 34.4%

2020High Fail Rate

52.9%

Age (yrs) 28Tests 34Avg Mileage 151,850Top Failure Brakes — 52.9%

MOT results for 1992 Mercedes 300 G Wagon by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	17	45.8%	48	130,829	Brakes — 33.3%
2010	18	68.2%	44	136,049	Brakes — 20.5%
2011	19	55.3%	47	136,018	Brakes — 27.7%
2012	20	55.6%	45	130,407	Suspension — 22.2%
2013	21	69.8%	43	129,956	Suspension — 34.9%
2014	22	48.9%	47	129,825	Brakes — 104.3%
2015	23	59.6%	47	131,890	Brakes — 51.1%
2016	24	58.7%	46	145,193	Lamps, Reflectors and Electrical Equipment — 69.6%
2017	25	55.6%	45	146,175	Suspension — 57.8%
2019	27	78.1%	32	144,697	Suspension — 34.4%
2020	28	52.9%	34	151,850	Brakes — 52.9%

Common MOT Failures

Top failure categories across all test years for 1992 Mercedes 300 G Wagon, with age trends.

Brakes

40.5%

↑ Increases with age

Lamps, reflectors and electrical equipment

35.9%

↑ Increases with age

Lamps, Reflectors and Electrical Equipment

35.2%

↓ Decreases with age

Suspension

34.0%

↑ Increases with age

Steering

22.1%

↑ 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	33.3% (17 yrs)	52.9% (28 yrs)	+19.6%	🔴 ↑
Suspension	29.2% (17 yrs)	44.1% (28 yrs)	+14.9%	🔴 ↑
Steering	20.8% (17 yrs)	26.5% (28 yrs)	+5.7%	🔴 ↑

Other Manufacture Years

1988 1989 1991 1992 1993

← Back to Mercedes 300 G Wagon overview

Looking for the best year to buy? See the full comparison on the Mercedes 300 G Wagon page →

About This Data

This page shows how Mercedes 300 G Wagon cars manufactured in 1992 perform at MOT as they age. Data spans from 2009 to 2020, covering 478 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.