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 1498cc has had 7 MOT tests on record, passing 6 and failing once (86% pass rate). It has 48,068 miles on the clock, averaging 5,548 miles per year, below the UK average of 7,400. The 1.5 TFSI engine is known for dada and engine management software / act (active cylinder technology) calibration.
MOT & Mileage History for WT18 ONN
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
Below average| Latest reading | 48,068 miles |
| Reading date | |
| Miles last year | 7,520 |
| Average per year | 5,548 |
| Mileage consistency | Variable |
Check WT18 ONN
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- Plate & colour change history
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- Service interval analysis
- Warranty work logged
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.
DADA
Engine management software / ACT (Active Cylinder Technology) calibration
Faulty ECU mapping causes poor transition between 2- and 4-cylinder modes, leading to hesitation, juddering, or "kangarooing" (RPM drop/stall risk in 1st gear). Cross-model issue in manuals.[1][2][3][4]
Common faults, what to check, and what to pay
Explore more about the Audi A3
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Vehicle Details
| Registration | WT18 ONN |
| Make | Audi |
| Model | A3 |
| Colour | Grey |
| Fuel type | Petrol |
| Engine | 1498cc |
| Year | 2018 |
| First registered | |
| Area code | WT — Bristol, West of England |
| Age identifier | 18 — March 2018 to August 2018 |
More WT18 O plates
Browse all WT18 O registrations from Bristol.
About WT18 ONN
What car is WT18 ONN?
WT18 ONN is a grey Audi A3, petrol (1498cc). First registered in Bristol in 2018.
What is the mileage of WT18 ONN?
The last recorded mileage for WT18 ONN was 48,068 miles, recorded on 29 Aug 2025 during its most recent MOT test.
Has WT18 ONN passed its MOT?
WT18 ONN has had 7 MOT tests with an 86% pass rate (6 passes, 1 failure). It last passed on 29 Aug 2025.
Is WT18 ONN ULEZ compliant?
Based on its fuel type and registration year, WT18 ONN 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 WT18 ONN?
WT18 ONN is approximately 8 years old. Age identifier 18 means registered between 1 March 2018 and 31 August 2018.