Vehicle summary
ULEZ status is estimated based on fuel type and registration year. It may not reflect the actual emission standard of this vehicle. Check with TfL for a definitive answer.
At a glance
This 2021 Mini Cooper S Petrol 1499cc has had 4 MOT tests on record, passing every one. It has 39,417 miles on the clock, averaging 8,498 miles per year, around the UK average of 7,400. The 1.5 B38 TwinPower Turbo engine is known for b38a15a and timing chain and guides.
MOT & Mileage History for BN21 XKK
Data from DVSA. Last updated August 2026. Check gov.uk for the latest.
MOT failures recorded
Average miles/year
Gaps in MOT history
Mileage Analysis
About average| Latest reading | 39,417 miles |
| Reading date | |
| Miles last year | 4,805 |
| Average per year | 8,498 |
| Mileage consistency | Consistent |
Check BN21 XKK
- Write-off & insurance claims Experian
- Outstanding finance check Experian
- Stolen vehicle check Experian
- Ownership changes Experian
- Mileage discrepancy alerts
- Plate & colour change history
- Franchised dealer records
- Independent garage visits
- Service interval analysis
- Warranty work logged
Full MOT Test History 4 tests on record
Reported issues for this Mini Cooper S
These are the most commonly reported problems on Mini Cooper S models (2014–2023), based on owner reports and workshop data across the UK.
B38A15A
Timing Chain and Guides
Chain stretches prematurely; guides can break.
Common faults, what to check, and what to pay
Explore more about the Mini Cooper S
Thinking about buying this car? These resources will help you make an informed decision.
Vehicle Details
| Registration | BN21 XKK |
| Make | Mini |
| Model | Cooper S |
| Colour | Grey |
| Fuel type | Petrol |
| Engine | 1499cc |
| Year | 2021 |
| First registered | |
| Area code | BN — Birmingham, Birmingham |
| Age identifier | 21 — March 2021 to August 2021 |
More BN21 X plates
Browse all BN21 X registrations from Birmingham.
About BN21 XKK
What car is BN21 XKK?
BN21 XKK is a grey Mini Cooper S, petrol (1499cc). First registered in Birmingham in 2021.
What is the mileage of BN21 XKK?
The last recorded mileage for BN21 XKK was 39,417 miles, recorded on 7 Jul 2026 during its most recent MOT test.
Has BN21 XKK passed its MOT?
BN21 XKK has had 4 MOT tests with an 100% pass rate (4 passes, 0 failures). It last passed on 7 Jul 2026.
Is BN21 XKK ULEZ compliant?
Based on its fuel type and registration year, BN21 XKK is likely ULEZ compliant. Petrol post-2005 (Euro 4). This is an estimate based on typical emission standards — confirm with TfL's ULEZ checker for a definitive answer.
How old is BN21 XKK?
BN21 XKK is approximately 5 years old. Age identifier 21 means registered between 1 March 2021 and 31 August 2021.