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 2001 Ford Focus Diesel 1753cc has had 8 MOT tests on record, passing 4 and failing 4 (50% pass rate). It has 229,495 miles on the clock, averaging 36,095 miles per year, above the UK average of 7,400. The 1.8 TDdi engine is known for timing belt failure and thermostat housing (plastic flange).
MOT & Mileage History for YH51 KNJ
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 | 229,495 miles |
| Reading date | |
| Average per year | 36,095 |
| Mileage consistency | Consistent |
Check YH51 KNJ
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- Warranty work logged
Full MOT Test History 8 tests on record
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Reported issues for this Ford Focus
These are the most commonly reported problems on Ford Focus models (1998–2004), based on owner reports and workshop data across the UK.
Timing belt failure
Belt snaps, bending exhaust valves (interference engine design).
Thermostat housing (plastic flange)
Plastic deforms/cracks, causing coolant leaks at joint.
Common faults, what to check, and what to pay
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Vehicle Details
| Registration | YH51 KNJ |
| Make | Ford |
| Model | Focus |
| Colour | Blue |
| Fuel type | Diesel |
| Engine | 1753cc |
| Year | 2001 |
| First registered | |
| Area code | YH — Leeds, Yorkshire |
| Age identifier | 51 — September 2001 to February 2002 |
More YH51 K plates
Browse all YH51 K registrations from Leeds.
About YH51 KNJ
What car is YH51 KNJ?
YH51 KNJ is a blue Ford Focus, diesel (1753cc). First registered in Leeds in 2001.
What is the mileage of YH51 KNJ?
The last recorded mileage for YH51 KNJ was 229,495 miles, recorded on 8 Jan 2009 during its most recent MOT test.
Has YH51 KNJ passed its MOT?
YH51 KNJ has had 8 MOT tests with a 50% pass rate (4 passes, 4 failures). It last passed on 8 Jan 2009.
Is YH51 KNJ ULEZ compliant?
Based on its fuel type and registration year, YH51 KNJ is likely not ULEZ compliant. As a diesel vehicle registered in 2001, it typically does not meet the Euro 6 emission standard required. This is an estimate — confirm with TfL's ULEZ checker.
How old is YH51 KNJ?
YH51 KNJ is approximately 25 years old. Age identifier 51 means registered between 1 September 2001 and 28 February 2002.