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 3 MOT tests on record, passing every one. It has 53,707 miles on the clock, averaging 9,346 miles per year, above 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 KJ21 MWO
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
Above average| Latest reading | 53,707 miles |
| Reading date | |
| Miles last year | 9,376 |
| Average per year | 9,346 |
| Mileage consistency | Consistent |
Check KJ21 MWO
- 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 3 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 | KJ21 MWO |
| Make | Mini |
| Model | Cooper S |
| Colour | Green |
| Fuel type | Petrol |
| Engine | 1499cc |
| Year | 2021 |
| First registered | |
| Area code | KJ — Northampton, Luton and Northampton |
| Age identifier | 21 — March 2021 to August 2021 |
More KJ21 M plates
Browse all KJ21 M registrations from Northampton.
About KJ21 MWO
What car is KJ21 MWO?
KJ21 MWO is a green Mini Cooper S, petrol (1499cc). First registered in Northampton in 2021.
What is the mileage of KJ21 MWO?
The last recorded mileage for KJ21 MWO was 53,707 miles, recorded on 17 Jul 2026 during its most recent MOT test.
Has KJ21 MWO passed its MOT?
KJ21 MWO has had 3 MOT tests with an 100% pass rate (3 passes, 0 failures). It last passed on 17 Jul 2026.
Is KJ21 MWO ULEZ compliant?
Based on its fuel type and registration year, KJ21 MWO 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 KJ21 MWO?
KJ21 MWO is approximately 5 years old. Age identifier 21 means registered between 1 March 2021 and 31 August 2021.