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 2008 Volkswagen Polo Diesel 1422cc has had 17 MOT tests on record, passing 10 and failing 7 (59% pass rate). It has 142,535 miles on the clock, averaging 11,650 miles per year, above the UK average of 7,400. The 1.4 TDI engine is known for 1. oil pump chain & balance shaft chain wear / failure and 2. injector unit (pd pump–dooer) wear & electrical failure. Common Volkswagen Polo issues include engine-specific faults and brake pad and disc wear:.
MOT & Mileage History for HN08 KNO
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
Above average| Latest reading | 142,535 miles |
| Reading date | |
| Miles last year | 16,805 |
| Average per year | 11,650 |
| Mileage consistency | Consistent |
Check HN08 KNO
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Full MOT Test History 17 tests on record
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Reported issues for this Volkswagen Polo
These are the most commonly reported problems on Volkswagen Polo models (2002–2009), based on owner reports and workshop data across the UK.
Engine-specific faults
Brake pad and disc wear:
Tyre wear and replacement:
Spark plug replacement:
1. Oil Pump Chain & Balance Shaft Chain Wear / Failure
The chain driving the oil pump and balance shaft (where fitted) is undersized for the loads imposed by the three-cylinder engine's unbalanced firing impulses. Early models are particularly vulnerable; chain tensioner wear allows excessive slack, leading to chain stretch, skip, or catastrophic failure[1].
2. Injector Unit (PD Pump–Dooer) Wear & Electrical Failure
Worn plunger seals allow diesel and engine oil to mix; electrical spools fail (sticking or electrical contact wear). These are high-wear components under the extreme pressures of the PD system[1].
Common faults, what to check, and what to pay
Explore more about the Volkswagen Polo
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Vehicle Details
| Registration | HN08 KNO |
| Make | Volkswagen |
| Model | Polo |
| Colour | Grey |
| Fuel type | Diesel |
| Engine | 1422cc |
| Year | 2008 |
| First registered | |
| Area code | HN — Portsmouth, Hampshire and Dorset |
| Age identifier | 08 — March 2008 to August 2008 |
More HN08 K plates
Browse all HN08 K registrations from Portsmouth.
About HN08 KNO
What car is HN08 KNO?
HN08 KNO is an grey Volkswagen Polo, diesel (1422cc). First registered in Portsmouth in 2008.
What is the mileage of HN08 KNO?
The last recorded mileage for HN08 KNO was 142,535 miles, recorded on 27 Mar 2020 during its most recent MOT test.
Has HN08 KNO passed its MOT?
HN08 KNO has had 17 MOT tests with a 59% pass rate (10 passes, 7 failures). It last passed on 27 Mar 2020.
Is HN08 KNO ULEZ compliant?
Based on its fuel type and registration year, HN08 KNO is likely not ULEZ compliant. As a diesel vehicle registered in 2008, it typically does not meet the Euro 6 emission standard required. This is an estimate — confirm with TfL's ULEZ checker.
How old is HN08 KNO?
HN08 KNO is approximately 18 years old. Age identifier 08 means registered between 1 March 2008 and 31 August 2008.