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 2016 Audi A3 Petrol 999cc has had 8 MOT tests on record, passing 7 and failing once (88% pass rate). It has 56,008 miles on the clock, averaging 4,869 miles per year, well 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 ST66 CCZ
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
Low mileage| Latest reading | 56,008 miles |
| Reading date | |
| Miles last year | 4,546 |
| Average per year | 4,869 |
| Mileage consistency | Variable |
Check ST66 CCZ
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Full MOT Test History 8 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 | ST66 CCZ |
| Make | Audi |
| Model | A3 |
| Colour | Black |
| Fuel type | Petrol |
| Engine | 999cc |
| Year | 2016 |
| First registered | |
| Area code | ST — Dundee, Scotland |
| Age identifier | 66 — September 2016 to February 2017 |
More ST66 C plates
Browse all ST66 C registrations from Dundee.
About ST66 CCZ
What car is ST66 CCZ?
ST66 CCZ is an black Audi A3, petrol (999cc). First registered in Dundee in 2016.
What is the mileage of ST66 CCZ?
The last recorded mileage for ST66 CCZ was 56,008 miles, recorded on 1 Sep 2025 during its most recent MOT test.
Has ST66 CCZ passed its MOT?
ST66 CCZ has had 8 MOT tests with an 88% pass rate (7 passes, 1 failure). It last passed on 1 Sep 2025.
Is ST66 CCZ ULEZ compliant?
Based on its fuel type and registration year, ST66 CCZ 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 ST66 CCZ?
ST66 CCZ is approximately 10 years old. Age identifier 66 means registered between 1 September 2016 and 28 February 2017.