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 3 Petrol 1999cc has had 5 MOT tests on record, passing 3 and failing 2 (60% pass rate). It has 56,193 miles on the clock, averaging 8,976 miles per year, around the UK average of 7,400. The 2.0L LF-DE engine is known for 1. high oil consumption and 2. plastic intake manifold swirlplate fracture.
MOT & Mileage History for KB04 UUN
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 | 56,193 miles |
| Reading date | |
| Average per year | 8,976 |
| Mileage consistency | Consistent |
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- Warranty work logged
Full MOT Test History 5 tests on record
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Reported issues for this Mazda 3
These are the most commonly reported problems on Mazda 3 models (2003–2009), based on owner reports and workshop data across the UK.
1. High Oil Consumption (Valve Stem Seals / Connecting Rod Bearing Wear)
Valve stem seals deteriorate and allow oil to migrate past them into the combustion chamber. Worn connecting rod bearings also elevate oil consumption. This is not a catastrophic failure initially but signals internal wear.
2. Plastic Intake Manifold Swirlplate Fracture
Poor-quality plastic in early manifolds becomes brittle. The swirlplates break off and/or the shaft wears and fractures. Broken pieces can enter the cylinder, causing catastrophic damage if not caught early.
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Vehicle Details
| Registration | KB04 UUN |
| Make | Mazda |
| Model | 3 |
| Colour | Silver |
| Fuel type | Petrol |
| Engine | 1999cc |
| Year | 2004 |
| First registered | |
| Area code | KB — Northampton, Luton and Northampton |
| Age identifier | 04 — March 2004 to August 2004 |
More KB04 U plates
Browse all KB04 U registrations from Northampton.
About KB04 UUN
What car is KB04 UUN?
KB04 UUN is a silver Mazda 3, petrol (1999cc). First registered in Northampton in 2004.
What is the mileage of KB04 UUN?
The last recorded mileage for KB04 UUN was 56,193 miles, recorded on 24 Feb 2010 during its most recent MOT test.
Has KB04 UUN passed its MOT?
KB04 UUN has had 5 MOT tests with a 60% pass rate (3 passes, 2 failures). It last passed on 24 Feb 2010.
Is KB04 UUN ULEZ compliant?
Based on its fuel type and registration year, KB04 UUN is likely not ULEZ compliant. As a petrol vehicle registered in 2004, it typically does not meet the Euro 4 emission standard required. This is an estimate — confirm with TfL's ULEZ checker.
How old is KB04 UUN?
KB04 UUN is approximately 22 years old. Age identifier 04 means registered between 1 March 2004 and 31 August 2004.