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 20 MOT tests on record, passing 15 and failing 5 (75% pass rate). It has 139,954 miles on the clock, averaging 7,288 miles per year, below 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 CW04 AAV
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
Below average| Latest reading | 139,954 miles |
| Reading date | |
| Average per year | 7,288 |
| Mileage consistency | Variable |
Check CW04 AAV
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- Warranty work logged
Full MOT Test History 20 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 | CW04 AAV |
| Make | Volkswagen |
| Model | Polo |
| Colour | Silver |
| Fuel type | Diesel |
| Engine | 1422cc |
| Year | 2004 |
| First registered | |
| Area code | CW — Bangor, Cymru (Wales) |
| Age identifier | 04 — March 2004 to August 2004 |
More CW04 A plates
Browse all CW04 A registrations from Bangor.
About CW04 AAV
What car is CW04 AAV?
CW04 AAV is a silver Volkswagen Polo, diesel (1422cc). First registered in Bangor in 2004.
What is the mileage of CW04 AAV?
The last recorded mileage for CW04 AAV was 139,954 miles, recorded on 1 Dec 2021 during its most recent MOT test.
Has CW04 AAV passed its MOT?
CW04 AAV has had 20 MOT tests with a 75% pass rate (15 passes, 5 failures). It last passed on 1 Dec 2021.
Is CW04 AAV ULEZ compliant?
Based on its fuel type and registration year, CW04 AAV 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 CW04 AAV?
CW04 AAV is approximately 22 years old. Age identifier 04 means registered between 1 March 2004 and 31 August 2004.