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 1968cc has had 10 MOT tests on record, passing 9 and failing once (90% pass rate). It has 129,599 miles on the clock, averaging 11,341 miles per year, above the UK average of 7,400. The 2.0 TDI engine is known for crlb and egr valve.
MOT & Mileage History for DE14 UMM
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
Above average| Latest reading | 129,599 miles |
| Reading date | |
| Miles last year | 15,275 |
| Average per year | 11,341 |
| Mileage consistency | Variable |
Check DE14 UMM
- Write-off & insurance claims Experian
- Outstanding finance check Experian
- Stolen vehicle check Experian
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- 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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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.
CRLB
EGR Valve
Clogs quickly with soot/carbon deposits.
Explore more about the Seat Leon
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Vehicle Details
| Registration | DE14 UMM |
| Make | Seat |
| Model | Leon |
| Colour | Silver |
| Fuel type | Diesel |
| Engine | 1968cc |
| 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 UMM
What car is DE14 UMM?
DE14 UMM is a silver Seat Leon, diesel (1968cc). First registered in Chester in 2014.
What is the mileage of DE14 UMM?
The last recorded mileage for DE14 UMM was 129,599 miles, recorded on 29 Aug 2025 during its most recent MOT test.
Has DE14 UMM passed its MOT?
DE14 UMM has had 10 MOT tests with an 90% pass rate (9 passes, 1 failure). It last passed on 29 Aug 2025.
Is DE14 UMM ULEZ compliant?
Based on its fuel type and registration year, DE14 UMM 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 DE14 UMM?
DE14 UMM is approximately 12 years old. Age identifier 14 means registered between 1 March 2014 and 31 August 2014.