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 Tsi Evo Petrol 999cc has had 4 MOT tests on record, passing 3 and failing once (75% pass rate). It has 52,956 miles on the clock, averaging 11,757 miles per year, above the UK average of 7,400.
MOT & Mileage History for LL21 YON
Data from DVSA. Last updated August 2026. Check gov.uk for the latest.
MOT failure recorded
Average miles/year
Gaps in MOT history
Mileage Analysis
Above average| Latest reading | 52,956 miles |
| Reading date | |
| Miles last year | 17,153 |
| Average per year | 11,757 |
| Mileage consistency | Consistent |
Check LL21 YON
- 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
Explore more about the Seat Leon Se Tsi Evo
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Vehicle Details
| Registration | LL21 YON |
| Make | Seat |
| Model | Leon Se Tsi Evo |
| Colour | Black |
| Fuel type | Petrol |
| Engine | 999cc |
| Year | 2021 |
| First registered | |
| Area code | LL — Stanmore, London |
| Age identifier | 21 — March 2021 to August 2021 |
More LL21 Y plates
Browse all LL21 Y registrations from Stanmore.
About LL21 YON
What car is LL21 YON?
LL21 YON is an black Seat Leon Se Tsi Evo, petrol (999cc). First registered in Stanmore in 2021.
What is the mileage of LL21 YON?
The last recorded mileage for LL21 YON was 52,956 miles, recorded on 12 Aug 2026 during its most recent MOT test.
Has LL21 YON passed its MOT?
LL21 YON has had 4 MOT tests with a 75% pass rate (3 passes, 1 failure). It last passed on 12 Aug 2026.
Is LL21 YON ULEZ compliant?
Based on its fuel type and registration year, LL21 YON 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 LL21 YON?
LL21 YON is approximately 5 years old. Age identifier 21 means registered between 1 March 2021 and 31 August 2021.