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 Leon Se Dynamic Tsi Evo Petrol 1498cc has had 3 MOT tests on record, passing every one. It has 65,613 miles on the clock, averaging 9,620 miles per year, above the UK average of 7,400.
MOT & Mileage History for YT21 KNJ
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 | 65,613 miles |
| Reading date | |
| Miles last year | 11,342 |
| Average per year | 9,620 |
| Mileage consistency | Consistent |
Check YT21 KNJ
- 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
Explore more about the Seat Leon Se Dynamic Tsi Evo
Thinking about buying this car? These resources will help you make an informed decision.
Vehicle Details
| Registration | YT21 KNJ |
| Make | Seat |
| Model | Leon Se Dynamic Tsi Evo |
| Colour | Silver |
| Fuel type | Petrol |
| Engine | 1498cc |
| Year | 2021 |
| First registered | |
| Area code | YT — Sheffield, Yorkshire |
| Age identifier | 21 — March 2021 to August 2021 |
More YT21 K plates
Browse all YT21 K registrations from Sheffield.
About YT21 KNJ
What car is YT21 KNJ?
YT21 KNJ is a silver Seat Leon Se Dynamic Tsi Evo, petrol (1498cc). First registered in Sheffield in 2021.
What is the mileage of YT21 KNJ?
The last recorded mileage for YT21 KNJ was 65,613 miles, recorded on 30 Oct 2025 during its most recent MOT test.
Has YT21 KNJ passed its MOT?
YT21 KNJ has had 3 MOT tests with an 100% pass rate (3 passes, 0 failures). It last passed on 30 Oct 2025.
Is YT21 KNJ ULEZ compliant?
Based on its fuel type and registration year, YT21 KNJ 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 YT21 KNJ?
YT21 KNJ is approximately 5 years old. Age identifier 21 means registered between 1 March 2021 and 31 August 2021.