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 2005 Mazda 3 Petrol 1999cc has had 13 MOT tests on record, passing 10 and failing 3 (77% pass rate). It has 74,371 miles on the clock, averaging 6,615 miles per year, below 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 KN05 GTZ
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 | 74,371 miles |
| Reading date | |
| Miles last year | 4,088 |
| Average per year | 6,615 |
| Mileage consistency | Variable |
Check KN05 GTZ
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- Warranty work logged
Full MOT Test History 13 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 | KN05 GTZ |
| Make | Mazda |
| Model | 3 |
| Colour | Blue |
| Fuel type | Petrol |
| Engine | 1999cc |
| Year | 2005 |
| First registered | |
| Area code | KN — Luton, Luton and Northampton |
| Age identifier | 05 — March 2005 to August 2005 |
More KN05 G plates
Browse all KN05 G registrations from Luton.
About KN05 GTZ
What car is KN05 GTZ?
KN05 GTZ is a blue Mazda 3, petrol (1999cc). First registered in Luton in 2005.
What is the mileage of KN05 GTZ?
The last recorded mileage for KN05 GTZ was 74,371 miles, recorded on 18 Jul 2017 during its most recent MOT test.
Has KN05 GTZ passed its MOT?
KN05 GTZ has had 13 MOT tests with a 77% pass rate (10 passes, 3 failures). It last passed on 18 Jul 2017.
Is KN05 GTZ ULEZ compliant?
Based on its fuel type and registration year, KN05 GTZ is likely not ULEZ compliant. As a petrol vehicle registered in 2005, it typically does not meet the Euro 4 emission standard required. This is an estimate — confirm with TfL's ULEZ checker.
How old is KN05 GTZ?
KN05 GTZ is approximately 21 years old. Age identifier 05 means registered between 1 March 2005 and 31 August 2005.