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 2018 Seat Leon Diesel 1968cc has had 7 MOT tests on record, passing every one. It has 53,722 miles on the clock, averaging 10,258 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 CV18 ONX
Data from DVSA. Last updated August 2026. Check gov.uk for the latest.
MOT failures recorded
Average miles/year
Gap in MOT history
Mileage Analysis
Above average| Latest reading | 53,722 miles |
| Reading date | |
| Miles last year | 8,414 |
| Average per year | 10,258 |
| Mileage consistency | Variable |
Check CV18 ONX
- 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
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Vehicle Details
| Registration | CV18 ONX |
| Make | Seat |
| Model | Leon |
| Colour | Blue |
| Fuel type | Diesel |
| Engine | 1968cc |
| Year | 2018 |
| First registered | |
| Area code | CV — Swansea, Cymru (Wales) |
| Age identifier | 18 — March 2018 to August 2018 |
More CV18 O plates
Browse all CV18 O registrations from Swansea.
About CV18 ONX
What car is CV18 ONX?
CV18 ONX is a blue Seat Leon, diesel (1968cc). First registered in Swansea in 2018.
What is the mileage of CV18 ONX?
The last recorded mileage for CV18 ONX was 53,722 miles, recorded on 28 May 2026 during its most recent MOT test.
Has CV18 ONX passed its MOT?
CV18 ONX has had 7 MOT tests with an 100% pass rate (7 passes, 0 failures). It last passed on 28 May 2026.
Is CV18 ONX ULEZ compliant?
Based on its fuel type and registration year, CV18 ONX 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 CV18 ONX?
CV18 ONX is approximately 8 years old. Age identifier 18 means registered between 1 March 2018 and 31 August 2018.