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 2009 Volkswagen Polo Diesel 1422cc has had 16 MOT tests on record, passing 8 and failing 8 (50% pass rate). It has 79,591 miles on the clock, averaging 5,992 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 YF09 BYO
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 | 79,591 miles |
| Reading date | |
| Miles last year | 20 |
| Average per year | 5,992 |
| Mileage consistency | Consistent |
Check YF09 BYO
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Full MOT Test History 16 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 | YF09 BYO |
| Make | Volkswagen |
| Model | Polo |
| Colour | Silver |
| Fuel type | Diesel |
| Engine | 1422cc |
| Year | 2009 |
| First registered | |
| Area code | YF — Leeds, Yorkshire |
| Age identifier | 09 — March 2009 to August 2009 |
More YF09 B plates
Browse all YF09 B registrations from Leeds.
About YF09 BYO
What car is YF09 BYO?
YF09 BYO is a silver Volkswagen Polo, diesel (1422cc). First registered in Leeds in 2009.
What is the mileage of YF09 BYO?
The last recorded mileage for YF09 BYO was 79,591 miles, recorded on 26 Oct 2020 during its most recent MOT test.
Has YF09 BYO passed its MOT?
YF09 BYO has had 16 MOT tests with a 50% pass rate (8 passes, 8 failures). It last passed on 26 Oct 2020.
Is YF09 BYO ULEZ compliant?
Based on its fuel type and registration year, YF09 BYO is likely not ULEZ compliant. As a diesel vehicle registered in 2009, it typically does not meet the Euro 6 emission standard required. This is an estimate — confirm with TfL's ULEZ checker.
How old is YF09 BYO?
YF09 BYO is approximately 17 years old. Age identifier 09 means registered between 1 March 2009 and 31 August 2009.