1991 BMW 525 I — MOT History by Age
How cars manufactured in 1991 perform at MOT as they age
35 years
Current Age
51.1%
Latest Pass Rate
45
Total Tests (All Years)
152,308 mi
Avg Mileage (Latest)
Data from official DVSA MOT testing records
Compared to Average at Age 18
This car: 51.1%
Average: 54.3%
⚠️ 3.2% below average (8383 models compared)
How This Car Ages
📉
Insufficient data for this analysis
Pass Rate Trend
📊
Insufficient data for this analysis
Year-by-Year MOT Results
2009High Fail Rate
51.1%
Age (yrs) 18Tests 45Avg Mileage 152,308Top Failure Brakes — 31.1%
Common MOT Failures
Top failure categories across all test years for 1991 BMW 525 I, with age trends.
Brakes
31.1%
— Consistent
Lamps, Reflectors and Electrical Equipment
24.4%
— Consistent
Suspension
22.2%
— Consistent
Exhaust, Fuel and Emissions
20.0%
— Consistent
Tyres
17.8%
— 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% (18 yrs) | 31.1% (18 yrs) | 0.0%
| ⚪ — |
| Lamps, Reflectors and Electrical Equipment | 24.4% (18 yrs) | 24.4% (18 yrs) | 0.0%
| ⚪ — |
| Suspension | 22.2% (18 yrs) | 22.2% (18 yrs) | 0.0%
| ⚪ — |
| Exhaust, Fuel and Emissions | 20.0% (18 yrs) | 20.0% (18 yrs) | 0.0%
| ⚪ — |
| Tyres | 17.8% (18 yrs) | 17.8% (18 yrs) | 0.0%
| ⚪ — |
Other Manufacture Years
Looking for the best year to buy? See the full comparison on the BMW 525 I page →
About This Data
This page shows how BMW 525 I cars manufactured in 1991 perform at MOT as they age. Data spans from 2009 to 2009, covering 45 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.