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 7 MOT tests on record, passing 6 and failing once (86% pass rate). It has 66,776 miles on the clock, averaging 7,734 miles per year, around 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 DA18 OUS
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
About average| Latest reading | 66,776 miles |
| Reading date | |
| Miles last year | 7,531 |
| Average per year | 7,734 |
| Mileage consistency | Consistent |
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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 | DA18 OUS |
| Make | Audi |
| Model | A3 |
| Colour | Black |
| Fuel type | Petrol |
| Engine | 999cc |
| Year | 2018 |
| First registered | |
| Area code | DA — Chester, Deeside to Shrewsbury |
| Age identifier | 18 — March 2018 to August 2018 |
More DA18 O plates
Browse all DA18 O registrations from Chester.
About DA18 OUS
What car is DA18 OUS?
DA18 OUS is a black Audi A3, petrol (999cc). First registered in Chester in 2018.
What is the mileage of DA18 OUS?
The last recorded mileage for DA18 OUS was 66,776 miles, recorded on 25 Apr 2026 during its most recent MOT test.
Has DA18 OUS passed its MOT?
DA18 OUS has had 7 MOT tests with an 86% pass rate (6 passes, 1 failure). It last passed on 25 Apr 2026.
Is DA18 OUS ULEZ compliant?
Based on its fuel type and registration year, DA18 OUS 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 DA18 OUS?
DA18 OUS is approximately 8 years old. Age identifier 18 means registered between 1 March 2018 and 31 August 2018.