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 2018 Audi A3 Petrol 999cc has had 4 MOT tests on record, passing every one. It has 78,443 miles on the clock, averaging 12,463 miles per year, above 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 ST18 YEC
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 | 78,443 miles |
| Reading date | |
| Miles last year | 17,605 |
| Average per year | 12,463 |
| Mileage consistency | Consistent |
Check ST18 YEC
- 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 4 tests on record
Similar cars to consider
Buyers comparing the Audi A3 often also look at these models. Check their MOT history and reliability before deciding:
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
Explore more about the Audi A3
Thinking about buying this car? These resources will help you make an informed decision.
Vehicle Details
| Registration | ST18 YEC |
| Make | Audi |
| Model | A3 |
| Colour | Grey |
| Fuel type | Petrol |
| Engine | 999cc |
| Year | 2018 |
| First registered | |
| Area code | ST — Dundee, Scotland |
| Age identifier | 18 — March 2018 to August 2018 |
More ST18 Y plates
Browse all ST18 Y registrations from Dundee.
About ST18 YEC
What car is ST18 YEC?
ST18 YEC is an grey Audi A3, petrol (999cc). First registered in Dundee in 2018.
What is the mileage of ST18 YEC?
The last recorded mileage for ST18 YEC was 78,443 miles, recorded on 28 Jul 2025 during its most recent MOT test.
Has ST18 YEC passed its MOT?
ST18 YEC has had 4 MOT tests with an 100% pass rate (4 passes, 0 failures). It last passed on 28 Jul 2025.
Is ST18 YEC ULEZ compliant?
Based on its fuel type and registration year, ST18 YEC 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 ST18 YEC?
ST18 YEC is approximately 8 years old. Age identifier 18 means registered between 1 March 2018 and 31 August 2018.