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 12 MOT tests on record, passing 10 and failing 2 (83% pass rate). It has 144,799 miles on the clock, averaging 9,924 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 NU14 KNS
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 | 144,799 miles |
| Reading date | |
| Miles last year | 9,466 |
| Average per year | 9,924 |
| Mileage consistency | Consistent |
Check NU14 KNS
- 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
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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 | NU14 KNS |
| Make | Seat |
| Model | Leon |
| Colour | Black |
| Fuel type | Diesel |
| Engine | 1598cc |
| Year | 2014 |
| First registered | |
| Area code | NU — Stockton, North |
| Age identifier | 14 — March 2014 to August 2014 |
More NU14 K plates
Browse all NU14 K registrations from Stockton.
About NU14 KNS
What car is NU14 KNS?
NU14 KNS is an black Seat Leon, diesel (1598cc). First registered in Stockton in 2014.
What is the mileage of NU14 KNS?
The last recorded mileage for NU14 KNS was 144,799 miles, recorded on 30 Jan 2026 during its most recent MOT test.
Has NU14 KNS passed its MOT?
NU14 KNS has had 12 MOT tests with an 83% pass rate (10 passes, 2 failures). It last passed on 30 Jan 2026.
Is NU14 KNS ULEZ compliant?
Based on its fuel type and registration year, NU14 KNS 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 NU14 KNS?
NU14 KNS is approximately 12 years old. Age identifier 14 means registered between 1 March 2014 and 31 August 2014.