2021 BMW 4 Series — MOT History by Age
How cars manufactured in 2021 perform at MOT as they age
5 years
Current Age
92.6%
Latest Pass Rate
690
Total Tests (All Years)
28,572 mi
Avg Mileage (Latest)
Data from official DVSA MOT testing records
Best vintage for 4 Series
Compared to Average at Age 3
This car: 92.6%
Average: 83.7%
✅ 8.9% above average (25474 models compared)
How This Car Ages
📉
Insufficient data for this analysis
Pass Rate Trend
📊
Insufficient data for this analysis
Year-by-Year MOT Results
2024
92.6%
Age (yrs) 3Tests 690Avg Mileage 28,572Top Failure Tyres — 8.0%
Common MOT Failures
Top failure categories across all test years for 2021 BMW 4 Series, with age trends.
Tyres
8.0%
— Consistent
Brakes
4.6%
— Consistent
Lamps, reflectors and electrical equipment
2.8%
— Consistent
Visibility
1.2%
— Consistent
Non-component advisories
0.4%
— Consistent
How Failures Change With Age
Comparing failure rates between the youngest and oldest test years.
| Category | At Youngest | At Oldest | Change | Trend |
|---|---|---|---|---|
| Tyres | 8.0% (3 yrs) | 8.0% (3 yrs) | 0.0%
| ⚪ — |
| Brakes | 4.6% (3 yrs) | 4.6% (3 yrs) | 0.0%
| ⚪ — |
| Lamps, reflectors and electrical equipment | 2.8% (3 yrs) | 2.8% (3 yrs) | 0.0%
| ⚪ — |
| Visibility | 1.2% (3 yrs) | 1.2% (3 yrs) | 0.0%
| ⚪ — |
| Non-component advisories | 0.4% (3 yrs) | 0.4% (3 yrs) | 0.0%
| ⚪ — |
Other Manufacture Years
Looking for the best year to buy? See the full comparison on the BMW 4 Series page →
About This Data
This page shows how BMW 4 Series cars manufactured in 2021 perform at MOT as they age. Data spans from 2024 to 2024, covering 690 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.