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 2013 Seat Leon Diesel 1598cc has had 12 MOT tests on record, passing 11 and failing once (92% pass rate). It has 71,082 miles on the clock, averaging 5,257 miles per year, below the UK average of 7,400. The 1.6 TDI engine is known for clha and diesel particulate filter (dpf).
MOT & Mileage History for KN63 NXJ
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
Below average| Latest reading | 71,082 miles |
| Reading date | |
| Miles last year | 6,463 |
| Average per year | 5,257 |
| Mileage consistency | Variable |
Check KN63 NXJ
- 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 12 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:
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
Thinking about buying this car? These resources will help you make an informed decision.
Vehicle Details
| Registration | KN63 NXJ |
| Make | Seat |
| Model | Leon |
| Colour | Red |
| Fuel type | Diesel |
| Engine | 1598cc |
| Year | 2013 |
| First registered | |
| Area code | KN — Luton, Luton and Northampton |
| Age identifier | 63 — September 2013 to February 2014 |
More KN63 N plates
Browse all KN63 N registrations from Luton.
About KN63 NXJ
What car is KN63 NXJ?
KN63 NXJ is a red Seat Leon, diesel (1598cc). First registered in Luton in 2013.
What is the mileage of KN63 NXJ?
The last recorded mileage for KN63 NXJ was 71,082 miles, recorded on 25 Mar 2026 during its most recent MOT test.
Has KN63 NXJ passed its MOT?
KN63 NXJ has had 12 MOT tests with an 92% pass rate (11 passes, 1 failure). It last passed on 25 Mar 2026.
Is KN63 NXJ ULEZ compliant?
Based on its fuel type and registration year, KN63 NXJ is likely not ULEZ compliant. As a diesel vehicle registered in 2013, it typically does not meet the Euro 6 emission standard required. This is an estimate — confirm with TfL's ULEZ checker.
How old is KN63 NXJ?
KN63 NXJ is approximately 13 years old. Age identifier 63 means registered between 1 September 2013 and 28 February 2014.