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 2014 Seat Leon Diesel 1598cc has had 16 MOT tests on record, passing 10 and failing 6 (63% pass rate). It has 146,417 miles on the clock, averaging 10,365 miles per year, above the UK average of 7,400. The 1.6 TDI engine is known for clha and diesel particulate filter (dpf).
MOT & Mileage History for KM14 BYU
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 | 146,417 miles |
| Reading date | |
| Miles last year | 17,268 |
| Average per year | 10,365 |
| Mileage consistency | Variable |
Check KM14 BYU
- 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
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Buyers comparing the Seat Leon often also look at these models. Check their MOT history and reliability before deciding:
Reported issues for this Seat Leon
These are the most commonly reported problems on Seat Leon models (2012–2020), based on owner reports and workshop data across the UK.
CLHA
Diesel Particulate Filter (DPF)
Clogs from poor fuel quality, short journeys, or failed regens, leading to backpressure.
Explore more about the Seat Leon
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Vehicle Details
| Registration | KM14 BYU |
| Make | Seat |
| Model | Leon |
| Colour | Black |
| Fuel type | Diesel |
| Engine | 1598cc |
| Year | 2014 |
| First registered | |
| Area code | KM — Luton, Luton and Northampton |
| Age identifier | 14 — March 2014 to August 2014 |
More KM14 B plates
Browse all KM14 B registrations from Luton.
About KM14 BYU
What car is KM14 BYU?
KM14 BYU is a black Seat Leon, diesel (1598cc). First registered in Luton in 2014.
What is the mileage of KM14 BYU?
The last recorded mileage for KM14 BYU was 146,417 miles, recorded on 8 Jun 2026 during its most recent MOT test.
Has KM14 BYU passed its MOT?
KM14 BYU has had 16 MOT tests with a 63% pass rate (10 passes, 6 failures). It last passed on 8 Jun 2026.
Is KM14 BYU ULEZ compliant?
Based on its fuel type and registration year, KM14 BYU is likely not ULEZ compliant. As a diesel vehicle registered in 2014, it typically does not meet the Euro 6 emission standard required. This is an estimate — confirm with TfL's ULEZ checker.
How old is KM14 BYU?
KM14 BYU is approximately 12 years old. Age identifier 14 means registered between 1 March 2014 and 31 August 2014.