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 2004 Mazda 6 Diesel 1998cc has had 14 MOT tests on record, passing 8 and failing 6 (57% pass rate). It has 174,006 miles on the clock, averaging 9,438 miles per year, above the UK average of 7,400.
MOT & Mileage History for RN04 BJJ
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
Above average| Latest reading | 174,006 miles |
| Reading date | |
| Miles last year | 7,656 |
| Average per year | 9,438 |
| Mileage consistency | Variable |
Check RN04 BJJ
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- Service interval analysis
- Warranty work logged
Full MOT Test History 14 tests on record
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Vehicle Details
| Registration | RN04 BJJ |
| Make | Mazda |
| Model | 6 |
| Colour | Blue |
| Fuel type | Diesel |
| Engine | 1998cc |
| Year | 2004 |
| First registered | |
| Area code | RN — Reading, Reading |
| Age identifier | 04 — March 2004 to August 2004 |
More RN04 B plates
Browse all RN04 B registrations from Reading.
About RN04 BJJ
What car is RN04 BJJ?
RN04 BJJ is an blue Mazda 6, diesel (1998cc). First registered in Reading in 2004.
What is the mileage of RN04 BJJ?
The last recorded mileage for RN04 BJJ was 174,006 miles, recorded on 26 May 2016 during its most recent MOT test.
Has RN04 BJJ passed its MOT?
RN04 BJJ has had 14 MOT tests with a 57% pass rate (8 passes, 6 failures). It last passed on 26 May 2016.
Is RN04 BJJ ULEZ compliant?
Based on its fuel type and registration year, RN04 BJJ is likely not ULEZ compliant. As a diesel vehicle registered in 2004, it typically does not meet the Euro 6 emission standard required. This is an estimate — confirm with TfL's ULEZ checker.
How old is RN04 BJJ?
RN04 BJJ is approximately 22 years old. Age identifier 04 means registered between 1 March 2004 and 31 August 2004.