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 Audi A3 S Line 40 Tfsi E S-A Hybrid Electric (Clean) 1395cc has had 3 MOT tests on record, passing every one. It has 70,826 miles on the clock, averaging 10,748 miles per year, above the UK average of 7,400.
MOT & Mileage History for KJ21 BUF
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 | 70,826 miles |
| Reading date | |
| Miles last year | 7,543 |
| Average per year | 10,748 |
| Mileage consistency | Consistent |
Check KJ21 BUF
- 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 3 tests on record
Common faults, what to check, and what to pay
Explore more about the Audi A3 S Line 40 Tfsi E S-A
Thinking about buying this car? These resources will help you make an informed decision.
Vehicle Details
| Registration | KJ21 BUF |
| Make | Audi |
| Model | A3 S Line 40 Tfsi E S-A |
| Colour | Blue |
| Fuel type | Hybrid Electric (Clean) |
| Engine | 1395cc |
| Year | 2021 |
| First registered | |
| Area code | KJ — Northampton, Luton and Northampton |
| Age identifier | 21 — March 2021 to August 2021 |
More KJ21 B plates
Browse all KJ21 B registrations from Northampton.
About KJ21 BUF
What car is KJ21 BUF?
KJ21 BUF is a blue Audi A3 S Line 40 Tfsi E S-A, hybrid electric (clean) (1395cc). First registered in Northampton in 2021.
What is the mileage of KJ21 BUF?
The last recorded mileage for KJ21 BUF was 70,826 miles, recorded on 2 Jul 2026 during its most recent MOT test.
Has KJ21 BUF passed its MOT?
KJ21 BUF has had 3 MOT tests with an 100% pass rate (3 passes, 0 failures). It last passed on 2 Jul 2026.
Is KJ21 BUF ULEZ compliant?
Based on its fuel type and registration year, KJ21 BUF is likely ULEZ compliant. Electric — exempt. This is an estimate based on typical emission standards — confirm with TfL's ULEZ checker for a definitive answer.
How old is KJ21 BUF?
KJ21 BUF is approximately 5 years old. Age identifier 21 means registered between 1 March 2021 and 31 August 2021.