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 2021 Mazda 3 Petrol 1998cc has had 4 MOT tests on record, passing 3 and failing once (75% pass rate). It has 30,172 miles on the clock, averaging 13,157 miles per year, above the UK average of 7,400.
MOT & Mileage History for KX21 USD
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
Above average| Latest reading | 30,172 miles |
| Reading date | |
| Miles last year | 12,898 |
| Average per year | 13,157 |
| Mileage consistency | Consistent |
Check KX21 USD
- Write-off & insurance claims Experian
- Outstanding finance check Experian
- Stolen vehicle check Experian
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- Mileage discrepancy alerts
- Plate & colour change history
- Franchised dealer records
- Independent garage visits
- Service interval analysis
- Warranty work logged
Full MOT Test History 4 tests on record
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Vehicle Details
| Registration | KX21 USD |
| Make | Mazda |
| Model | 3 |
| Colour | Silver |
| Fuel type | Petrol |
| Engine | 1998cc |
| Year | 2021 |
| First registered | |
| Area code | KX — Luton, Luton and Northampton |
| Age identifier | 21 — March 2021 to August 2021 |
More KX21 U plates
Browse all KX21 U registrations from Luton.
About KX21 USD
What car is KX21 USD?
KX21 USD is a silver Mazda 3, petrol (1998cc). First registered in Luton in 2021.
What is the mileage of KX21 USD?
The last recorded mileage for KX21 USD was 30,172 miles, recorded on 11 Feb 2026 during its most recent MOT test.
Has KX21 USD passed its MOT?
KX21 USD has had 4 MOT tests with a 75% pass rate (3 passes, 1 failure). It last passed on 11 Feb 2026.
Is KX21 USD ULEZ compliant?
Based on its fuel type and registration year, KX21 USD 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 KX21 USD?
KX21 USD is approximately 5 years old. Age identifier 21 means registered between 1 March 2021 and 31 August 2021.