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 23 MOT tests on record, passing 19 and failing 4 (83% pass rate). It has 66,845 miles on the clock, averaging 2,640 miles per year, well 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 HN55 DKU
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
Low mileage| Latest reading | 66,845 miles |
| Reading date | |
| Average per year | 2,640 |
| Mileage consistency | Variable |
Check HN55 DKU
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- Service interval analysis
- Warranty work logged
Full MOT Test History 23 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 | HN55 DKU |
| Make | Mazda |
| Model | 3 |
| Colour | Silver |
| Fuel type | Petrol |
| Engine | 1999cc |
| Year | 2005 |
| First registered | |
| Area code | HN — Portsmouth, Hampshire and Dorset |
| Age identifier | 55 — September 2005 to February 2006 |
More HN55 D plates
Browse all HN55 D registrations from Portsmouth.
About HN55 DKU
What car is HN55 DKU?
HN55 DKU is an silver Mazda 3, petrol (1999cc). First registered in Portsmouth in 2005.
What is the mileage of HN55 DKU?
The last recorded mileage for HN55 DKU was 66,845 miles, recorded on 6 Jul 2026 during its most recent MOT test.
Has HN55 DKU passed its MOT?
HN55 DKU has had 23 MOT tests with an 83% pass rate (19 passes, 4 failures). It last passed on 6 Jul 2026.
Is HN55 DKU ULEZ compliant?
Based on its fuel type and registration year, HN55 DKU 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 HN55 DKU?
HN55 DKU is approximately 21 years old. Age identifier 55 means registered between 1 September 2005 and 28 February 2006.