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 Seat Arona Fr Ecotsi S-A Petrol 999cc has had 3 MOT tests on record, passing 2 and failing once (67% pass rate). It has 75,646 miles on the clock, averaging 5,605 miles per year, below the UK average of 7,400.
MOT & Mileage History for KO21 MJJ
Data from DVSA. Last updated August 2026. Check gov.uk for the latest.
MOT failure recorded
Average miles/year
Gap in MOT history
Mileage Analysis
Below average| Latest reading | 75,646 miles |
| Reading date | |
| Miles last year | 6 |
| Average per year | 5,605 |
| Mileage consistency | Consistent |
Check KO21 MJJ
- 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
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Vehicle Details
| Registration | KO21 MJJ |
| Make | Seat |
| Model | Arona Fr Ecotsi S-A |
| Colour | Grey |
| Fuel type | Petrol |
| Engine | 999cc |
| Year | 2021 |
| First registered | |
| Area code | KO — Luton, Luton and Northampton |
| Age identifier | 21 — March 2021 to August 2021 |
More KO21 M plates
Browse all KO21 M registrations from Luton.
About KO21 MJJ
What car is KO21 MJJ?
KO21 MJJ is a grey Seat Arona Fr Ecotsi S-A, petrol (999cc). First registered in Luton in 2021.
What is the mileage of KO21 MJJ?
The last recorded mileage for KO21 MJJ was 75,646 miles, recorded on 10 Dec 2025 during its most recent MOT test.
Has KO21 MJJ passed its MOT?
KO21 MJJ has had 3 MOT tests with a 67% pass rate (2 passes, 1 failure). It last passed on 10 Dec 2025.
Is KO21 MJJ ULEZ compliant?
Based on its fuel type and registration year, KO21 MJJ 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 KO21 MJJ?
KO21 MJJ is approximately 5 years old. Age identifier 21 means registered between 1 March 2021 and 31 August 2021.