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 Volkswagen Polo Diesel 1422cc has had 11 MOT tests on record, passing 7 and failing 4 (64% pass rate). It has 154,891 miles on the clock, averaging 19,600 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 DG04 NNU
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 | 154,891 miles |
| Reading date | |
| Miles last year | 15,801 |
| Average per year | 19,600 |
| Mileage consistency | Consistent |
Check DG04 NNU
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- Warranty work logged
Full MOT Test History 11 tests on record
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Buyers comparing the Volkswagen Polo often also look at these models. Check their MOT history and reliability before deciding:
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 | DG04 NNU |
| Make | Volkswagen |
| Model | Polo |
| Colour | Blue |
| Fuel type | Diesel |
| Engine | 1422cc |
| Year | 2004 |
| First registered | |
| Area code | DG — Chester, Deeside to Shrewsbury |
| Age identifier | 04 — March 2004 to August 2004 |
More DG04 N plates
Browse all DG04 N registrations from Chester.
About DG04 NNU
What car is DG04 NNU?
DG04 NNU is a blue Volkswagen Polo, diesel (1422cc). First registered in Chester in 2004.
What is the mileage of DG04 NNU?
The last recorded mileage for DG04 NNU was 154,891 miles, recorded on 9 Jan 2014 during its most recent MOT test.
Has DG04 NNU passed its MOT?
DG04 NNU has had 11 MOT tests with a 64% pass rate (7 passes, 4 failures). It last passed on 9 Jan 2014.
Is DG04 NNU ULEZ compliant?
Based on its fuel type and registration year, DG04 NNU is likely not ULEZ compliant. As a diesel vehicle registered in 2004, it typically does not meet the Euro 6 emission standard required. This is an estimate — confirm with TfL's ULEZ checker.
How old is DG04 NNU?
DG04 NNU is approximately 22 years old. Age identifier 04 means registered between 1 March 2004 and 31 August 2004.