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 53,686 miles on the clock, averaging 7,439 miles per year, around 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 CH18 SUL
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 | 53,686 miles |
| Reading date | |
| Miles last year | 3,651 |
| Average per year | 7,439 |
| Mileage consistency | Consistent |
Check CH18 SUL
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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
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Vehicle Details
| Registration | CH18 SUL |
| Make | Audi |
| Model | A3 |
| Colour | Grey |
| Fuel type | Petrol |
| Engine | 1498cc |
| Year | 2018 |
| First registered | |
| Area code | CH — Cardiff, Cymru (Wales) |
| Age identifier | 18 — March 2018 to August 2018 |
More CH18 S plates
Browse all CH18 S registrations from Cardiff.
About CH18 SUL
What car is CH18 SUL?
CH18 SUL is a grey Audi A3, petrol (1498cc). First registered in Cardiff in 2018.
What is the mileage of CH18 SUL?
The last recorded mileage for CH18 SUL was 53,686 miles, recorded on 25 Sep 2025 during its most recent MOT test.
Has CH18 SUL passed its MOT?
CH18 SUL has had 7 MOT tests with an 86% pass rate (6 passes, 1 failure). It last passed on 25 Sep 2025.
Is CH18 SUL ULEZ compliant?
Based on its fuel type and registration year, CH18 SUL 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 CH18 SUL?
CH18 SUL is approximately 8 years old. Age identifier 18 means registered between 1 March 2018 and 31 August 2018.