1999 Alfa Romeo 166 — MOT History by Age

How cars manufactured in 1999 perform at MOT as they age

27 years

Current Age

78.1%

Latest Pass Rate

2,073

Total Tests (All Years)

137,761 mi

Avg Mileage (Latest)

Data from official DVSA MOT testing records

Best vintage for 166

Insufficient data for same-age comparison.

How This Car Ages

Pass rate progression for the 1999 Alfa Romeo 166 as it ages.

10 yrs38.6%

→ ↓1.3%

11 yrs37.3%

→ ↑3.5%

12 yrs40.8%

→ ↓0.1%

13 yrs40.7%

→ ↓6.2%

14 yrs34.5%

→ ↑1.0%

15 yrs35.5%

→ ↑6.3%

16 yrs41.8%

→ ↑14.5%

17 yrs56.3%

→ ↓6.3%

18 yrs50.0%

→ ↑5.6%

19 yrs55.6%

→ ↓12.3%

20 yrs43.3%

→ ↑34.8%

25 yrs78.1%

📊 View as table

Age	Pass Rate	Tests
10 yrs	38.6%	511
11 yrs	37.3%	426
12 yrs	40.8%	316
13 yrs	40.7%	214
14 yrs	34.5%	165
15 yrs	35.5%	124
16 yrs	41.8%	91
17 yrs	56.3%	64
18 yrs	50.0%	64
19 yrs	55.6%	36
20 yrs	43.3%	30
25 yrs	78.1%	32

Pass Rate Trend

How the 1999 Alfa Romeo 166 pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2024 (25 yrs)	78.1%	32
2019 (20 yrs)	43.3%	30
2018 (19 yrs)	55.6%	36
2017 (18 yrs)	50%	64
2016 (17 yrs)	56.3%	64
2015 (16 yrs)	41.8%	91
2014 (15 yrs)	35.5%	124
2013 (14 yrs)	34.5%	165
2012 (13 yrs)	40.7%	214
2011 (12 yrs)	40.8%	316
2010 (11 yrs)	37.3%	426
2009 (10 yrs)	38.6%	511

Year-by-Year MOT Results

2009High Fail Rate

38.6%

Age (yrs) 10Tests 511Avg Mileage 95,715Top Failure Brakes — 37.0%

2010High Fail Rate

37.3%

Age (yrs) 11Tests 426Avg Mileage 103,180Top Failure Suspension — 37.8%

2011High Fail Rate

40.8%

Age (yrs) 12Tests 316Avg Mileage 102,869Top Failure Suspension — 35.8%

2012High Fail Rate

40.7%

Age (yrs) 13Tests 214Avg Mileage 101,579Top Failure Suspension — 35.5%

2013High Fail Rate

34.5%

Age (yrs) 14Tests 165Avg Mileage 109,367Top Failure Brakes — 109.7%

2014High Fail Rate

35.5%

Age (yrs) 15Tests 124Avg Mileage 109,651Top Failure Suspension — 100.0%

2015High Fail Rate

41.8%

Age (yrs) 16Tests 91Avg Mileage 108,240Top Failure Suspension — 78.0%

2016High Fail Rate

56.3%

Age (yrs) 17Tests 64Avg Mileage 113,769Top Failure Lamps, Reflectors and Electrical Equipment — 51.6%

2017High Fail Rate

50.0%

Age (yrs) 18Tests 64Avg Mileage 116,844Top Failure Brakes — 65.6%

2018High Fail Rate

55.6%

Age (yrs) 19Tests 36Avg Mileage 119,267Top Failure Brakes — 80.6%

2019High Fail Rate

43.3%

Age (yrs) 20Tests 30Avg Mileage 122,370Top Failure Brakes — 96.7%

2024

78.1%

Age (yrs) 25Tests 32Avg Mileage 137,761Top Failure Suspension — 31.3%

MOT results for 1999 Alfa Romeo 166 by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	10	38.6%	511	95,715	Brakes — 37.0%
2010	11	37.3%	426	103,180	Suspension — 37.8%
2011	12	40.8%	316	102,869	Suspension — 35.8%
2012	13	40.7%	214	101,579	Suspension — 35.5%
2013	14	34.5%	165	109,367	Brakes — 109.7%
2014	15	35.5%	124	109,651	Suspension — 100.0%
2015	16	41.8%	91	108,240	Suspension — 78.0%
2016	17	56.3%	64	113,769	Lamps, Reflectors and Electrical Equipment — 51.6%
2017	18	50.0%	64	116,844	Brakes — 65.6%
2018	19	55.6%	36	119,267	Brakes — 80.6%
2019	20	43.3%	30	122,370	Brakes — 96.7%
2024	25	78.1%	32	137,761	Suspension — 31.3%

Common MOT Failures

Top failure categories across all test years for 1999 Alfa Romeo 166, with age trends.

Brakes

64.6%

↑ Increases with age

Lamps, Reflectors and Electrical Equipment

52.8%

↑ Increases with age

Suspension

51.2%

— Consistent

Lamps, reflectors and electrical equipment

39.4%

— Consistent

Tyres

27.8%

↓ Decreases with age

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

Category	At Youngest	At Oldest	Change	Trend
Tyres	23.7% (10 yrs)	12.5% (25 yrs)	-11.2%	🟢 ↓
Suspension	34.2% (10 yrs)	31.3% (25 yrs)	-2.9%	🟢 ↓

Other Manufacture Years

1999 2000 2001 2002 2003 2004 2005

← Back to Alfa Romeo 166 overview

Looking for the best year to buy? See the full comparison on the Alfa Romeo 166 page →

About This Data

This page shows how Alfa Romeo 166 cars manufactured in 1999 perform at MOT as they age. Data spans from 2009 to 2024, covering 2,073 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.