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 2001 Mazda 323 Petrol 1991cc has had 11 MOT tests on record, passing 7 and failing 4 (64% pass rate). It has 92,310 miles on the clock, averaging 8,349 miles per year, around the UK average of 7,400.
MOT & Mileage History for NX51 ACU
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
About average| Latest reading | 92,310 miles |
| Reading date | |
| Miles last year | 8 |
| Average per year | 8,349 |
| Mileage consistency | Variable |
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Full MOT Test History 11 tests on record
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Vehicle Details
| Registration | NX51 ACU |
| Make | Mazda |
| Model | 323 |
| Colour | Red |
| Fuel type | Petrol |
| Engine | 1991cc |
| Year | 2001 |
| First registered | |
| Area code | NX — Stockton, North |
| Age identifier | 51 — September 2001 to February 2002 |
More NX51 A plates
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About NX51 ACU
What car is NX51 ACU?
NX51 ACU is an red Mazda 323, petrol (1991cc). First registered in Stockton in 2001.
What is the mileage of NX51 ACU?
The last recorded mileage for NX51 ACU was 92,310 miles, recorded on 23 Jul 2012 during its most recent MOT test.
Has NX51 ACU passed its MOT?
NX51 ACU has had 11 MOT tests with a 64% pass rate (7 passes, 4 failures). It last passed on 23 Jul 2012.
Is NX51 ACU ULEZ compliant?
Based on its fuel type and registration year, NX51 ACU is likely not ULEZ compliant. As a petrol vehicle registered in 2001, it typically does not meet the Euro 4 emission standard required. This is an estimate — confirm with TfL's ULEZ checker.
How old is NX51 ACU?
NX51 ACU is approximately 25 years old. Age identifier 51 means registered between 1 September 2001 and 28 February 2002.