1999 Rover 623 — MOT History by Age

How cars manufactured in 1999 perform at MOT as they age

27 years

Current Age

57.8%

Latest Pass Rate

1,782

Total Tests (All Years)

90,269 mi

Avg Mileage (Latest)

Data from official DVSA MOT testing records

Best vintage for 623

Insufficient data for same-age comparison.

How This Car Ages

Pass rate progression for the 1999 Rover 623 as it ages.

10 yrs49.4%

→ ↓0.3%

11 yrs49.1%

→ ↑3.2%

12 yrs52.3%

→ ↓2.8%

13 yrs49.5%

→ ↓7.3%

14 yrs42.2%

→ ↑1.3%

15 yrs43.5%

→ ↑8.7%

16 yrs52.2%

→ ↓2.2%

17 yrs50.0%

→ ↑3.8%

18 yrs53.8%

→ ↑3.7%

19 yrs57.5%

→ ↓1.6%

20 yrs55.9%

→ ↓7.4%

22 yrs48.5%

→ ↑9.3%

25 yrs57.8%

📊 View as table

Age	Pass Rate	Tests
10 yrs	49.4%	328
11 yrs	49.1%	283
12 yrs	52.3%	241
13 yrs	49.5%	190
14 yrs	42.2%	166
15 yrs	43.5%	131
16 yrs	52.2%	113
17 yrs	50.0%	100
18 yrs	53.8%	78
19 yrs	57.5%	40
20 yrs	55.9%	34
22 yrs	48.5%	33
25 yrs	57.8%	45

Pass Rate Trend

How the 1999 Rover 623 pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2024 (25 yrs)	57.8%	45
2021 (22 yrs)	48.5%	33
2019 (20 yrs)	55.9%	34
2018 (19 yrs)	57.5%	40
2017 (18 yrs)	53.8%	78
2016 (17 yrs)	50%	100
2015 (16 yrs)	52.2%	113
2014 (15 yrs)	43.5%	131
2013 (14 yrs)	42.2%	166
2012 (13 yrs)	49.5%	190
2011 (12 yrs)	52.3%	241
2010 (11 yrs)	49.1%	283
2009 (10 yrs)	49.4%	328

Year-by-Year MOT Results

2009High Fail Rate

49.4%

Age (yrs) 10Tests 328Avg Mileage 80,890Top Failure Brakes — 31.1%

2010High Fail Rate

49.1%

Age (yrs) 11Tests 283Avg Mileage 85,867Top Failure Brakes — 33.2%

2011High Fail Rate

52.3%

Age (yrs) 12Tests 241Avg Mileage 86,309Top Failure Brakes — 34.4%

2012High Fail Rate

49.5%

Age (yrs) 13Tests 190Avg Mileage 88,151Top Failure Brakes — 30.5%

2013High Fail Rate

42.2%

Age (yrs) 14Tests 166Avg Mileage 89,138Top Failure Brakes — 115.1%

2014High Fail Rate

43.5%

Age (yrs) 15Tests 131Avg Mileage 90,865Top Failure Brakes — 110.7%

2015High Fail Rate

52.2%

Age (yrs) 16Tests 113Avg Mileage 86,799Top Failure Brakes — 70.8%

2016High Fail Rate

50.0%

Age (yrs) 17Tests 100Avg Mileage 88,884Top Failure Brakes — 69.0%

2017High Fail Rate

53.8%

Age (yrs) 18Tests 78Avg Mileage 87,857Top Failure Brakes — 94.9%

2018High Fail Rate

57.5%

Age (yrs) 19Tests 40Avg Mileage 82,634Top Failure Brakes — 55.0%

2019High Fail Rate

55.9%

Age (yrs) 20Tests 34Avg Mileage 90,191Top Failure Brakes — 85.3%

2021High Fail Rate

48.5%

Age (yrs) 22Tests 33Avg Mileage 85,513Top Failure Suspension — 87.9%

2024High Fail Rate

57.8%

Age (yrs) 25Tests 45Avg Mileage 90,269Top Failure Brakes — 95.6%

MOT results for 1999 Rover 623 by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	10	49.4%	328	80,890	Brakes — 31.1%
2010	11	49.1%	283	85,867	Brakes — 33.2%
2011	12	52.3%	241	86,309	Brakes — 34.4%
2012	13	49.5%	190	88,151	Brakes — 30.5%
2013	14	42.2%	166	89,138	Brakes — 115.1%
2014	15	43.5%	131	90,865	Brakes — 110.7%
2015	16	52.2%	113	86,799	Brakes — 70.8%
2016	17	50.0%	100	88,884	Brakes — 69.0%
2017	18	53.8%	78	87,857	Brakes — 94.9%
2018	19	57.5%	40	82,634	Brakes — 55.0%
2019	20	55.9%	34	90,191	Brakes — 85.3%
2021	22	48.5%	33	85,513	Suspension — 87.9%
2024	25	57.8%	45	90,269	Brakes — 95.6%

Common MOT Failures

Top failure categories across all test years for 1999 Rover 623, with age trends.

Brakes

69.8%

↑ Increases with age

Noise, emissions and leaks

43.2%

— Consistent

Suspension

43.0%

↑ Increases with age

Lamps, reflectors and electrical equipment

31.0%

↑ Increases with age

Lamps, Reflectors and Electrical Equipment

29.2%

— Consistent

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

Category	At Youngest	At Oldest	Change	Trend
Brakes	31.1% (10 yrs)	95.6% (25 yrs)	+64.5%	🔴 ↑
Suspension	21.3% (10 yrs)	55.6% (25 yrs)	+34.3%	🔴 ↑
Tyres	17.1% (10 yrs)	31.1% (25 yrs)	+14.0%	🔴 ↑

Other Manufacture Years

1993 1994 1995 1996 1997 1998 1999

← Back to Rover 623 overview

Looking for the best year to buy? See the full comparison on the Rover 623 page →

About This Data

This page shows how Rover 623 cars manufactured in 1999 perform at MOT as they age. Data spans from 2009 to 2024, covering 1,782 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.