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 63,146 miles on the clock, averaging 5,904 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 GX66 GWZ
Data from DVSA. Last updated August 2026. Check gov.uk for the latest.
MOT failure recorded
Average miles/year
Gap in MOT history
Mileage Analysis
Below average| Latest reading | 63,146 miles |
| Reading date | |
| Miles last year | 8,103 |
| Average per year | 5,904 |
| Mileage consistency | Variable |
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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 | GX66 GWZ |
| Make | Audi |
| Model | A3 |
| Colour | White |
| Fuel type | Petrol |
| Engine | 999cc |
| Year | 2016 |
| First registered | |
| Area code | GX — Brighton, Garden of England |
| Age identifier | 66 — September 2016 to February 2017 |
More GX66 G plates
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About GX66 GWZ
What car is GX66 GWZ?
GX66 GWZ is a white Audi A3, petrol (999cc). First registered in Brighton in 2016.
What is the mileage of GX66 GWZ?
The last recorded mileage for GX66 GWZ was 63,146 miles, recorded on 7 Feb 2026 during its most recent MOT test.
Has GX66 GWZ passed its MOT?
GX66 GWZ has had 8 MOT tests with an 88% pass rate (7 passes, 1 failure). It last passed on 7 Feb 2026.
Is GX66 GWZ ULEZ compliant?
Based on its fuel type and registration year, GX66 GWZ 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 GX66 GWZ?
GX66 GWZ is approximately 10 years old. Age identifier 66 means registered between 1 September 2016 and 28 February 2017.