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 14 MOT tests on record, passing 10 and failing 4 (71% pass rate). It has 110,299 miles on the clock, averaging 7,977 miles per year, around 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 NV04 BYF
Data from DVSA. Last updated August 2026. Check gov.uk for the latest.
MOT failures recorded
Average miles/year
Gaps in MOT history
Mileage Analysis
About average| Latest reading | 110,299 miles |
| Reading date | |
| Average per year | 7,977 |
| Mileage consistency | Consistent |
Check NV04 BYF
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- Warranty work logged
Full MOT Test History 14 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 | NV04 BYF |
| Make | Volkswagen |
| Model | Polo |
| Colour | Silver |
| Fuel type | Diesel |
| Engine | 1422cc |
| Year | 2004 |
| First registered | |
| Area code | NV — Stockton, North |
| Age identifier | 04 — March 2004 to August 2004 |
More NV04 B plates
Browse all NV04 B registrations from Stockton.
About NV04 BYF
What car is NV04 BYF?
NV04 BYF is an silver Volkswagen Polo, diesel (1422cc). First registered in Stockton in 2004.
What is the mileage of NV04 BYF?
The last recorded mileage for NV04 BYF was 110,299 miles, recorded on 5 May 2016 during its most recent MOT test.
Has NV04 BYF passed its MOT?
NV04 BYF has had 14 MOT tests with a 71% pass rate (10 passes, 4 failures). It last passed on 5 May 2016.
Is NV04 BYF ULEZ compliant?
Based on its fuel type and registration year, NV04 BYF 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 NV04 BYF?
NV04 BYF is approximately 22 years old. Age identifier 04 means registered between 1 March 2004 and 31 August 2004.