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 14 MOT tests on record, passing 11 and failing 3 (79% pass rate). It has 84,663 miles on the clock, averaging 6,650 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 YH14 KSJ
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
Below average| Latest reading | 84,663 miles |
| Reading date | |
| Average per year | 6,650 |
| Mileage consistency | Variable |
Check YH14 KSJ
- Write-off & insurance claims Experian
- Outstanding finance check Experian
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- Plate & colour change history
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- Independent garage visits
- Service interval analysis
- Warranty work logged
Full MOT Test History 14 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.
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 | YH14 KSJ |
| Make | Seat |
| Model | Leon |
| Colour | Blue |
| Fuel type | Petrol |
| Engine | 1798cc |
| Year | 2014 |
| First registered | |
| Area code | YH — Leeds, Yorkshire |
| Age identifier | 14 — March 2014 to August 2014 |
More YH14 K plates
Browse all YH14 K registrations from Leeds.
About YH14 KSJ
What car is YH14 KSJ?
YH14 KSJ is a blue Seat Leon, petrol (1798cc). First registered in Leeds in 2014.
What is the mileage of YH14 KSJ?
The last recorded mileage for YH14 KSJ was 84,663 miles, recorded on 24 Mar 2026 during its most recent MOT test.
Has YH14 KSJ passed its MOT?
YH14 KSJ has had 14 MOT tests with a 79% pass rate (11 passes, 3 failures). It last passed on 24 Mar 2026.
Is YH14 KSJ ULEZ compliant?
Based on its fuel type and registration year, YH14 KSJ 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 YH14 KSJ?
YH14 KSJ is approximately 12 years old. Age identifier 14 means registered between 1 March 2014 and 31 August 2014.