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 2018 Seat Leon Diesel 1598cc has had 7 MOT tests on record, passing 6 and failing once (86% pass rate). It has 20,890 miles on the clock at the last MOT. The 1.6 TDI engine is known for clha and diesel particulate filter (dpf).
MOT & Mileage History for KX18 XNN
Data from DVSA. Last updated August 2026. Check gov.uk for the latest.
MOT failure recorded
Average miles/year
Gap in MOT history
Mileage Analysis
| Latest reading | 20,890 miles |
| Reading date | |
| Miles last year | -53,784 |
| Mileage consistency | Variable |
Check KX18 XNN
- 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 7 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
Thinking about buying this car? These resources will help you make an informed decision.
Vehicle Details
| Registration | KX18 XNN |
| Make | Seat |
| Model | Leon |
| Colour | Grey |
| Fuel type | Diesel |
| Engine | 1598cc |
| Year | 2018 |
| First registered | |
| Area code | KX — Luton, Luton and Northampton |
| Age identifier | 18 — March 2018 to August 2018 |
More KX18 X plates
Browse all KX18 X registrations from Luton.
About KX18 XNN
What car is KX18 XNN?
KX18 XNN is a grey Seat Leon, diesel (1598cc). First registered in Luton in 2018.
What is the mileage of KX18 XNN?
The last recorded mileage for KX18 XNN was 20,890 miles, recorded on 11 Oct 2025 during its most recent MOT test.
Has KX18 XNN passed its MOT?
KX18 XNN has had 7 MOT tests with an 86% pass rate (6 passes, 1 failure). It last passed on 11 Oct 2025.
Is KX18 XNN ULEZ compliant?
Based on its fuel type and registration year, KX18 XNN is likely ULEZ compliant. Diesel post-2015 (Euro 6). This is an estimate based on typical emission standards — confirm with TfL's ULEZ checker for a definitive answer.
How old is KX18 XNN?
KX18 XNN is approximately 8 years old. Age identifier 18 means registered between 1 March 2018 and 31 August 2018.