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 35 Tfsi Mhev S-A Petrol 1498cc has had 3 MOT tests on record, passing every one. It has 31,693 miles on the clock, averaging 5,479 miles per year, below the UK average of 7,400.
MOT & Mileage History for CU21 UBX
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
Below average| Latest reading | 31,693 miles |
| Reading date | |
| Miles last year | 5,092 |
| Average per year | 5,479 |
| Mileage consistency | Consistent |
Check CU21 UBX
- 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
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Vehicle Details
| Registration | CU21 UBX |
| Make | Audi |
| Model | A3 S Line 35 Tfsi Mhev S-A |
| Colour | Grey |
| Fuel type | Petrol |
| Engine | 1498cc |
| Year | 2021 |
| First registered | |
| Area code | CU — Swansea, Cymru (Wales) |
| Age identifier | 21 — March 2021 to August 2021 |
More CU21 U plates
Browse all CU21 U registrations from Swansea.
About CU21 UBX
What car is CU21 UBX?
CU21 UBX is a grey Audi A3 S Line 35 Tfsi Mhev S-A, petrol (1498cc). First registered in Swansea in 2021.
What is the mileage of CU21 UBX?
The last recorded mileage for CU21 UBX was 31,693 miles, recorded on 23 Apr 2026 during its most recent MOT test.
Has CU21 UBX passed its MOT?
CU21 UBX has had 3 MOT tests with an 100% pass rate (3 passes, 0 failures). It last passed on 23 Apr 2026.
Is CU21 UBX ULEZ compliant?
Based on its fuel type and registration year, CU21 UBX 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 CU21 UBX?
CU21 UBX is approximately 5 years old. Age identifier 21 means registered between 1 March 2021 and 31 August 2021.