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 16 MOT tests on record, passing 12 and failing 4 (75% pass rate). It has 191,808 miles on the clock, averaging 14,049 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 RN04 WYB
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
Above average| Latest reading | 191,808 miles |
| Reading date | |
| Miles last year | 6,703 |
| Average per year | 14,049 |
| Mileage consistency | Variable |
Check RN04 WYB
- Write-off & insurance claims Experian
- Outstanding finance check Experian
- Stolen vehicle check Experian
- Ownership changes Experian
- Mileage discrepancy alerts
- Plate & colour change history
- Franchised dealer records
- Independent garage visits
- Service interval analysis
- Warranty work logged
Full MOT Test History 16 tests on record
Similar cars to consider
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
Thinking about buying this car? These resources will help you make an informed decision.
Vehicle Details
| Registration | RN04 WYB |
| Make | Volkswagen |
| Model | Polo |
| Colour | Grey |
| Fuel type | Diesel |
| Engine | 1422cc |
| Year | 2004 |
| First registered | |
| Area code | RN — Reading, Reading |
| Age identifier | 04 — March 2004 to August 2004 |
More RN04 W plates
Browse all RN04 W registrations from Reading.
About RN04 WYB
What car is RN04 WYB?
RN04 WYB is an grey Volkswagen Polo, diesel (1422cc). First registered in Reading in 2004.
What is the mileage of RN04 WYB?
The last recorded mileage for RN04 WYB was 191,808 miles, recorded on 20 Mar 2018 during its most recent MOT test.
Has RN04 WYB passed its MOT?
RN04 WYB has had 16 MOT tests with a 75% pass rate (12 passes, 4 failures). It last passed on 20 Mar 2018.
Is RN04 WYB ULEZ compliant?
Based on its fuel type and registration year, RN04 WYB 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 RN04 WYB?
RN04 WYB is approximately 22 years old. Age identifier 04 means registered between 1 March 2004 and 31 August 2004.