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 Mercedes-Benz A Diesel 1950cc has had 4 MOT tests on record, passing 3 and failing once (75% pass rate). It has 59,629 miles on the clock, averaging 9,704 miles per year, above the UK average of 7,400.
MOT & Mileage History for KJ21 USN
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 | 59,629 miles |
| Reading date | |
| Miles last year | 7 |
| Average per year | 9,704 |
| Mileage consistency | Consistent |
Check KJ21 USN
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- Plate & colour change history
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- Service interval analysis
- Warranty work logged
Full MOT Test History 4 tests on record
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Vehicle Details
| Registration | KJ21 USN |
| Make | Mercedes-Benz |
| Model | A |
| Colour | Black |
| Fuel type | Diesel |
| Engine | 1950cc |
| Year | 2021 |
| First registered | |
| Area code | KJ — Northampton, Luton and Northampton |
| Age identifier | 21 — March 2021 to August 2021 |
More KJ21 U plates
Browse all KJ21 U registrations from Northampton.
About KJ21 USN
What car is KJ21 USN?
KJ21 USN is a black Mercedes-Benz A, diesel (1950cc). First registered in Northampton in 2021.
What is the mileage of KJ21 USN?
The last recorded mileage for KJ21 USN was 59,629 miles, recorded on 23 Oct 2025 during its most recent MOT test.
Has KJ21 USN passed its MOT?
KJ21 USN has had 4 MOT tests with a 75% pass rate (3 passes, 1 failure). It last passed on 23 Oct 2025.
Is KJ21 USN ULEZ compliant?
Based on its fuel type and registration year, KJ21 USN 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 KJ21 USN?
KJ21 USN is approximately 5 years old. Age identifier 21 means registered between 1 March 2021 and 31 August 2021.