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 Petrol 1798cc has had 10 MOT tests on record, passing 9 and failing once (90% pass rate). It has 73,310 miles on the clock, averaging 5,924 miles per year, below the UK average of 7,400. The 1.8 TSI engine is known for cjsa and piston rings.
MOT & Mileage History for DE14 UNW
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 | 73,310 miles |
| Reading date | |
| Miles last year | 6,341 |
| Average per year | 5,924 |
| Mileage consistency | Consistent |
Check DE14 UNW
- 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 10 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.
CJSA
Piston rings (faulty design leading to excessive oil consumption)
Premature wear on thin piston rings causes high oil burn-off, often 1 quart per 1,000-2,000 miles.[1][6]
Explore more about the Seat Leon
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Vehicle Details
| Registration | DE14 UNW |
| Make | Seat |
| Model | Leon |
| Colour | Grey |
| Fuel type | Petrol |
| Engine | 1798cc |
| Year | 2014 |
| First registered | |
| Area code | DE — Chester, Deeside to Shrewsbury |
| Age identifier | 14 — March 2014 to August 2014 |
More DE14 U plates
Browse all DE14 U registrations from Chester.
About DE14 UNW
What car is DE14 UNW?
DE14 UNW is a grey Seat Leon, petrol (1798cc). First registered in Chester in 2014.
What is the mileage of DE14 UNW?
The last recorded mileage for DE14 UNW was 73,310 miles, recorded on 26 Nov 2025 during its most recent MOT test.
Has DE14 UNW passed its MOT?
DE14 UNW has had 10 MOT tests with an 90% pass rate (9 passes, 1 failure). It last passed on 26 Nov 2025.
Is DE14 UNW ULEZ compliant?
Based on its fuel type and registration year, DE14 UNW is likely ULEZ compliant. Petrol post-2005 (Euro 4). This is an estimate based on typical emission standards — confirm with TfL's ULEZ checker for a definitive answer.
How old is DE14 UNW?
DE14 UNW is approximately 12 years old. Age identifier 14 means registered between 1 March 2014 and 31 August 2014.