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 A4 S Line 35 Tdi Mhev S-A Diesel 1968cc has had 3 MOT tests on record, passing every one. It has 166,031 miles on the clock, averaging 26,636 miles per year, above the UK average of 7,400.
MOT & Mileage History for KN21 CMX
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 | 166,031 miles |
| Reading date | |
| Miles last year | 16,561 |
| Average per year | 26,636 |
| Mileage consistency | Consistent |
Check KN21 CMX
- 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
Explore more about the Audi A4 S Line 35 Tdi Mhev S-A
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Vehicle Details
| Registration | KN21 CMX |
| Make | Audi |
| Model | A4 S Line 35 Tdi Mhev S-A |
| Colour | Blue |
| Fuel type | Diesel |
| Engine | 1968cc |
| Year | 2021 |
| First registered | |
| Area code | KN — Luton, Luton and Northampton |
| Age identifier | 21 — March 2021 to August 2021 |
More KN21 C plates
Browse all KN21 C registrations from Luton.
About KN21 CMX
What car is KN21 CMX?
KN21 CMX is a blue Audi A4 S Line 35 Tdi Mhev S-A, diesel (1968cc). First registered in Luton in 2021.
What is the mileage of KN21 CMX?
The last recorded mileage for KN21 CMX was 166,031 miles, recorded on 4 Mar 2026 during its most recent MOT test.
Has KN21 CMX passed its MOT?
KN21 CMX has had 3 MOT tests with an 100% pass rate (3 passes, 0 failures). It last passed on 4 Mar 2026.
Is KN21 CMX ULEZ compliant?
Based on its fuel type and registration year, KN21 CMX 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 KN21 CMX?
KN21 CMX is approximately 5 years old. Age identifier 21 means registered between 1 March 2021 and 31 August 2021.