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 Bmw 420i M Sport Auto Petrol 1998cc has had 2 MOT tests on record, passing every one. It has 58,400 miles on the clock, averaging 14,547 miles per year, above the UK average of 7,400.
MOT & Mileage History for KJ21 SZX
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
Above average| Latest reading | 58,400 miles |
| Reading date | |
| Miles last year | 15,538 |
| Average per year | 14,547 |
| Mileage consistency | Consistent |
Check KJ21 SZX
- 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 2 tests on record
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Vehicle Details
| Registration | KJ21 SZX |
| Make | Bmw |
| Model | 420i M Sport Auto |
| Colour | Green |
| Fuel type | Petrol |
| Engine | 1998cc |
| Year | 2021 |
| First registered | |
| Area code | KJ — Northampton, Luton and Northampton |
| Age identifier | 21 — March 2021 to August 2021 |
More KJ21 S plates
Browse all KJ21 S registrations from Northampton.
About KJ21 SZX
What car is KJ21 SZX?
KJ21 SZX is a green Bmw 420i M Sport Auto, petrol (1998cc). First registered in Northampton in 2021.
What is the mileage of KJ21 SZX?
The last recorded mileage for KJ21 SZX was 58,400 miles, recorded on 2 Sep 2025 during its most recent MOT test.
Has KJ21 SZX passed its MOT?
KJ21 SZX has had 2 MOT tests with an 100% pass rate (2 passes, 0 failures). It last passed on 2 Sep 2025.
Is KJ21 SZX ULEZ compliant?
Based on its fuel type and registration year, KJ21 SZX 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 KJ21 SZX?
KJ21 SZX is approximately 5 years old. Age identifier 21 means registered between 1 March 2021 and 31 August 2021.