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 2006 Mazda 6 Diesel 1998cc has had 18 MOT tests on record, passing 13 and failing 5 (72% pass rate). It has 89,519 miles on the clock, averaging 6,002 miles per year, below the UK average of 7,400.
MOT & Mileage History for SM56 UNJ
Data from DVSA. Last updated August 2026. Check gov.uk for the latest.
MOT failures recorded
Average miles/year
Gap in MOT history
Mileage Analysis
Below average| Latest reading | 89,519 miles |
| Reading date | |
| Miles last year | 3,656 |
| Average per year | 6,002 |
| Mileage consistency | Variable |
Check SM56 UNJ
- 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 18 tests on record
Similar cars to consider
Buyers comparing the Mazda 6 often also look at these models. Check their MOT history and reliability before deciding:
Explore more about the Mazda 6
Thinking about buying this car? These resources will help you make an informed decision.
Vehicle Details
| Registration | SM56 UNJ |
| Make | Mazda |
| Model | 6 |
| Colour | Grey |
| Fuel type | Diesel |
| Engine | 1998cc |
| Year | 2006 |
| First registered | |
| Area code | SM — Edinburgh, Scotland |
| Age identifier | 56 — September 2006 to February 2007 |
More SM56 U plates
Browse all SM56 U registrations from Edinburgh.
About SM56 UNJ
What car is SM56 UNJ?
SM56 UNJ is an grey Mazda 6, diesel (1998cc). First registered in Edinburgh in 2006.
What is the mileage of SM56 UNJ?
The last recorded mileage for SM56 UNJ was 89,519 miles, recorded on 1 Aug 2022 during its most recent MOT test.
Has SM56 UNJ passed its MOT?
SM56 UNJ has had 18 MOT tests with a 72% pass rate (13 passes, 5 failures). It last passed on 1 Aug 2022.
Is SM56 UNJ ULEZ compliant?
Based on its fuel type and registration year, SM56 UNJ is likely not ULEZ compliant. As a diesel vehicle registered in 2006, it typically does not meet the Euro 6 emission standard required. This is an estimate — confirm with TfL's ULEZ checker.
How old is SM56 UNJ?
SM56 UNJ is approximately 20 years old. Age identifier 56 means registered between 1 September 2006 and 28 February 2007.