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 1968cc has had 7 MOT tests on record, passing every one. It has 68,712 miles on the clock, averaging 7,818 miles per year, around the UK average of 7,400. The 2.0 TDI engine is known for crlb and egr valve.
MOT & Mileage History for GY66 YLT
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
About average| Latest reading | 68,712 miles |
| Reading date | |
| Miles last year | 4,730 |
| Average per year | 7,818 |
| Mileage consistency | Consistent |
Check GY66 YLT
- 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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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
Thinking about buying this car? These resources will help you make an informed decision.
Vehicle Details
| Registration | GY66 YLT |
| Make | Seat |
| Model | Leon |
| Colour | Grey |
| Fuel type | Diesel |
| Engine | 1968cc |
| Year | 2017 |
| First registered | |
| Area code | GY — Brighton, Garden of England |
| Age identifier | 66 — September 2016 to February 2017 |
More GY66 Y plates
Browse all GY66 Y registrations from Brighton.
About GY66 YLT
What car is GY66 YLT?
GY66 YLT is a grey Seat Leon, diesel (1968cc). First registered in Brighton in 2017.
What is the mileage of GY66 YLT?
The last recorded mileage for GY66 YLT was 68,712 miles, recorded on 12 Feb 2026 during its most recent MOT test.
Has GY66 YLT passed its MOT?
GY66 YLT has had 7 MOT tests with an 100% pass rate (7 passes, 0 failures). It last passed on 12 Feb 2026.
Is GY66 YLT ULEZ compliant?
Based on its fuel type and registration year, GY66 YLT 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 GY66 YLT?
GY66 YLT is approximately 9 years old. Age identifier 66 means registered between 1 September 2016 and 28 February 2017.