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 2012 Seat Leon Diesel 1598cc has had 16 MOT tests on record, passing 10 and failing 6 (63% pass rate). It has 152,906 miles on the clock, averaging 12,752 miles per year, above the UK average of 7,400.
MOT & Mileage History for KN12 KMY
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 | 152,906 miles |
| Reading date | |
| Miles last year | 11,498 |
| Average per year | 12,752 |
| Mileage consistency | Variable |
Check KN12 KMY
- 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 16 tests on record
Similar cars to consider
Buyers comparing the Seat Leon often also look at these models. Check their MOT history and reliability before deciding:
Explore more about the Seat Leon
Thinking about buying this car? These resources will help you make an informed decision.
Vehicle Details
| Registration | KN12 KMY |
| Make | Seat |
| Model | Leon |
| Colour | Grey |
| Fuel type | Diesel |
| Engine | 1598cc |
| Year | 2012 |
| First registered | |
| Area code | KN — Luton, Luton and Northampton |
| Age identifier | 12 — March 2012 to August 2012 |
More KN12 K plates
Browse all KN12 K registrations from Luton.
About KN12 KMY
What car is KN12 KMY?
KN12 KMY is a grey Seat Leon, diesel (1598cc). First registered in Luton in 2012.
What is the mileage of KN12 KMY?
The last recorded mileage for KN12 KMY was 152,906 miles, recorded on 16 Oct 2023 during its most recent MOT test.
Has KN12 KMY passed its MOT?
KN12 KMY has had 16 MOT tests with a 63% pass rate (10 passes, 6 failures). It last passed on 16 Oct 2023.
Is KN12 KMY ULEZ compliant?
Based on its fuel type and registration year, KN12 KMY is likely not ULEZ compliant. As a diesel vehicle registered in 2012, it typically does not meet the Euro 6 emission standard required. This is an estimate — confirm with TfL's ULEZ checker.
How old is KN12 KMY?
KN12 KMY is approximately 14 years old. Age identifier 12 means registered between 1 March 2012 and 31 August 2012.