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 4 MOT tests on record, passing 3 and failing once (75% pass rate). It has 34,289 miles on the clock, averaging 7,132 miles per year, below the UK average of 7,400.
MOT & Mileage History for KJ21 YFO
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
Below average| Latest reading | 34,289 miles |
| Reading date | |
| Miles last year | 6,615 |
| Average per year | 7,132 |
| Mileage consistency | Consistent |
Check KJ21 YFO
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Full MOT Test History 4 tests on record
Common faults, what to check, and what to pay
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Vehicle Details
| Registration | KJ21 YFO |
| 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 Y plates
Browse all KJ21 Y registrations from Northampton.
About KJ21 YFO
What car is KJ21 YFO?
KJ21 YFO 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 YFO?
The last recorded mileage for KJ21 YFO was 34,289 miles, recorded on 10 Jul 2026 during its most recent MOT test.
Has KJ21 YFO passed its MOT?
KJ21 YFO has had 4 MOT tests with a 75% pass rate (3 passes, 1 failure). It last passed on 10 Jul 2026.
Is KJ21 YFO ULEZ compliant?
Based on its fuel type and registration year, KJ21 YFO 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 YFO?
KJ21 YFO is approximately 5 years old. Age identifier 21 means registered between 1 March 2021 and 31 August 2021.