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 6 MOT tests on record, passing 5 and failing once (83% pass rate). It has 67,795 miles on the clock, averaging 9,922 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 SW18 KWN
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
Above average| Latest reading | 67,795 miles |
| Reading date | |
| Average per year | 9,922 |
| Mileage consistency | Consistent |
Check SW18 KWN
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- Warranty work logged
Full MOT Test History 6 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 | SW18 KWN |
| Make | Audi |
| Model | A3 |
| Colour | Grey |
| Fuel type | Petrol |
| Engine | 999cc |
| Year | 2018 |
| First registered | |
| Area code | SW — Aberdeen, Scotland |
| Age identifier | 18 — March 2018 to August 2018 |
More SW18 K plates
Browse all SW18 K registrations from Aberdeen.
About SW18 KWN
What car is SW18 KWN?
SW18 KWN is an grey Audi A3, petrol (999cc). First registered in Aberdeen in 2018.
What is the mileage of SW18 KWN?
The last recorded mileage for SW18 KWN was 67,795 miles, recorded on 4 Sep 2025 during its most recent MOT test.
Has SW18 KWN passed its MOT?
SW18 KWN has had 6 MOT tests with an 83% pass rate (5 passes, 1 failure). It last passed on 4 Sep 2025.
Is SW18 KWN ULEZ compliant?
Based on its fuel type and registration year, SW18 KWN 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 SW18 KWN?
SW18 KWN is approximately 8 years old. Age identifier 18 means registered between 1 March 2018 and 31 August 2018.