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 2017 Audi A3 Petrol 999cc has had 7 MOT tests on record, passing every one. It has 73,773 miles on the clock, averaging 7,304 miles per year, below the UK average of 7,400. The 1.0 TFSI engine is known for 1. carbon buildup on intake valves and 2. turbocharger actuator/wastegate linkage failure.
MOT & Mileage History for CP66 XAT
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 | 73,773 miles |
| Reading date | |
| Miles last year | 10,592 |
| Average per year | 7,304 |
| Mileage consistency | Consistent |
Check CP66 XAT
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Full MOT Test History 7 tests on record
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Reported issues for this Audi A3
These are the most commonly reported problems on Audi A3 models (2012–2020), based on owner reports and workshop data across the UK.
1. Carbon Buildup on Intake Valves
Direct-injection petrol engines like the CHZB lack fuel spray across the intake valves during the induction stroke. Without this natural cleaning action, carbon deposits accumulate on the valve stems and seats, restricting airflow.[2]
2. Turbocharger Actuator/Wastegate Linkage Failure
The actuator linkage connecting the wastegate solenoid to the wastegate valve becomes faulty or loose, causing loss of boost control. Many repair shops misdiagnose this as full turbocharger failure and recommend a costly replacement (€1,000+) when only the actuator arm needs repair (€150).[3]
Common faults, what to check, and what to pay
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Vehicle Details
| Registration | CP66 XAT |
| Make | Audi |
| Model | A3 |
| Colour | White |
| Fuel type | Petrol |
| Engine | 999cc |
| Year | 2017 |
| First registered | |
| Area code | CP — Swansea, Cymru (Wales) |
| Age identifier | 66 — September 2016 to February 2017 |
More CP66 X plates
Browse all CP66 X registrations from Swansea.
About CP66 XAT
What car is CP66 XAT?
CP66 XAT is a white Audi A3, petrol (999cc). First registered in Swansea in 2017.
What is the mileage of CP66 XAT?
The last recorded mileage for CP66 XAT was 73,773 miles, recorded on 17 Dec 2025 during its most recent MOT test.
Has CP66 XAT passed its MOT?
CP66 XAT has had 7 MOT tests with an 100% pass rate (7 passes, 0 failures). It last passed on 17 Dec 2025.
Is CP66 XAT ULEZ compliant?
Based on its fuel type and registration year, CP66 XAT 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 CP66 XAT?
CP66 XAT is approximately 9 years old. Age identifier 66 means registered between 1 September 2016 and 28 February 2017.