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 2017 Seat Leon Diesel 1598cc has had 8 MOT tests on record, passing 7 and failing once (88% pass rate). It has 86,837 miles on the clock, averaging 11,758 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 HN66 XDJ
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
Above average| Latest reading | 86,837 miles |
| Reading date | |
| Miles last year | 11,897 |
| Average per year | 11,758 |
| Mileage consistency | Consistent |
Check HN66 XDJ
- 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 8 tests on record
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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 | HN66 XDJ |
| Make | Seat |
| Model | Leon |
| Colour | Grey |
| Fuel type | Diesel |
| Engine | 1598cc |
| Year | 2017 |
| First registered | |
| Area code | HN — Portsmouth, Hampshire and Dorset |
| Age identifier | 66 — September 2016 to February 2017 |
More HN66 X plates
Browse all HN66 X registrations from Portsmouth.
About HN66 XDJ
What car is HN66 XDJ?
HN66 XDJ is an grey Seat Leon, diesel (1598cc). First registered in Portsmouth in 2017.
What is the mileage of HN66 XDJ?
The last recorded mileage for HN66 XDJ was 86,837 miles, recorded on 13 Jan 2026 during its most recent MOT test.
Has HN66 XDJ passed its MOT?
HN66 XDJ has had 8 MOT tests with an 88% pass rate (7 passes, 1 failure). It last passed on 13 Jan 2026.
Is HN66 XDJ ULEZ compliant?
Based on its fuel type and registration year, HN66 XDJ 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 HN66 XDJ?
HN66 XDJ is approximately 9 years old. Age identifier 66 means registered between 1 September 2016 and 28 February 2017.