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 2017 Fiat 500 Petrol 1242cc has had 10 MOT tests on record, passing 7 and failing 3 (70% pass rate). It has 57,952 miles on the clock, averaging 6,942 miles per year, below the UK average of 7,400. The 1.2 8v FIRE engine is known for sparse fault data.
MOT & Mileage History for ET66 KNN
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
Below average| Latest reading | 57,952 miles |
| Reading date | |
| Miles last year | 5,935 |
| Average per year | 6,942 |
| Mileage consistency | Variable |
Check ET66 KNN
- 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 10 tests on record
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Reported issues for this Fiat 500
These are the most commonly reported problems on Fiat 500 models (2007–2024), based on owner reports and workshop data across the UK.
Sparse Fault Data
Common faults, what to check, and what to pay
Explore more about the Fiat 500
Thinking about buying this car? These resources will help you make an informed decision.
Vehicle Details
| Registration | ET66 KNN |
| Make | Fiat |
| Model | 500 |
| Colour | Grey |
| Fuel type | Petrol |
| Engine | 1242cc |
| Year | 2017 |
| First registered | |
| Area code | ET — Chelmsford, Essex |
| Age identifier | 66 — September 2016 to February 2017 |
More ET66 K plates
Browse all ET66 K registrations from Chelmsford.
About ET66 KNN
What car is ET66 KNN?
ET66 KNN is an grey Fiat 500, petrol (1242cc). First registered in Chelmsford in 2017.
What is the mileage of ET66 KNN?
The last recorded mileage for ET66 KNN was 57,952 miles, recorded on 12 Mar 2026 during its most recent MOT test.
Has ET66 KNN passed its MOT?
ET66 KNN has had 10 MOT tests with a 70% pass rate (7 passes, 3 failures). It last passed on 12 Mar 2026.
Is ET66 KNN ULEZ compliant?
Based on its fuel type and registration year, ET66 KNN 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 ET66 KNN?
ET66 KNN is approximately 9 years old. Age identifier 66 means registered between 1 September 2016 and 28 February 2017.