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 2007 Audi A4 Diesel 2698cc has had 18 MOT tests on record, passing 17 and failing once (94% pass rate). It has 133,145 miles on the clock, averaging 6,712 miles per year, below the UK average of 7,400. The 2.7 TDI V6 engine is known for timing chain and tensioner.
MOT & Mileage History for CB51 BOZ
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
Below average| Latest reading | 133,145 miles |
| Reading date | |
| Miles last year | 10,300 |
| Average per year | 6,712 |
| Mileage consistency | Consistent |
Check CB51 BOZ
- Write-off & insurance claims Experian
- Outstanding finance check Experian
- Stolen vehicle check Experian
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- Plate & colour change history
- Franchised dealer records
- Independent garage visits
- Service interval analysis
- Warranty work logged
Full MOT Test History 18 tests on record
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Reported issues for this Audi A4
These are the most commonly reported problems on Audi A4 models (2005–2008), based on owner reports and workshop data across the UK.
Timing chain and tensioner
Chain stretches or tensioner fails, leading to slack.
Explore more about the Audi A4
Thinking about buying this car? These resources will help you make an informed decision.
Vehicle Details
| Registration | CB51 BOZ |
| Make | Audi |
| Model | A4 |
| Colour | Grey |
| Fuel type | Diesel |
| Engine | 2698cc |
| Year | 2007 |
| First registered | |
| Area code | CB — Cardiff, Cymru (Wales) |
| Age identifier | 51 — September 2001 to February 2002 |
More CB51 B plates
Browse all CB51 B registrations from Cardiff.
About CB51 BOZ
What car is CB51 BOZ?
CB51 BOZ is a grey Audi A4, diesel (2698cc). First registered in Cardiff in 2007.
What is the mileage of CB51 BOZ?
The last recorded mileage for CB51 BOZ was 133,145 miles, recorded on 12 May 2026 during its most recent MOT test.
Has CB51 BOZ passed its MOT?
CB51 BOZ has had 18 MOT tests with an 94% pass rate (17 passes, 1 failure). It last passed on 12 May 2026.
Is CB51 BOZ ULEZ compliant?
Based on its fuel type and registration year, CB51 BOZ is likely not ULEZ compliant. As a diesel vehicle registered in 2007, it typically does not meet the Euro 6 emission standard required. This is an estimate — confirm with TfL's ULEZ checker.
How old is CB51 BOZ?
CB51 BOZ is approximately 19 years old. Age identifier 51 means registered between 1 September 2001 and 28 February 2002.