ULEZ & Clean Air Zones
Euro Standards
Is Euro 5 diesel ULEZ compliant?
CheckFuelPrices Editorial
Expert Written • 5 industry sources
No, Euro 5 diesel is not ULEZ compliant. London's Ultra Low Emission Zone requires diesel cars and vans to meet the Euro 6 standard — Euro 5 diesel vehicles that enter the zone are charged £12.50 per day.
Why Euro 5 Diesel Fails the ULEZ Standard
Euro 6 is the minimum for diesel:
TfL sets Euro 6 as the minimum diesel standard for cars, motorcycles, and vans to drive in the ULEZ charge-free. Euro 5 diesel produces significantly higher NOx emissions than Euro 6.
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Euro 5 was introduced in 2009:
Euro 5 diesel applied to new cars registered from September 2009. Euro 6 replaced it for new registrations from September 2015, so most diesel cars registered before 2015 are Euro 5 or older.
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£12.50 daily charge applies:
Driving a non-compliant vehicle inside the ULEZ — which now covers all of Greater London — incurs a £12.50 daily charge for cars and light vans.
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How to Check Your Specific Vehicle
Use the TfL vehicle checker:
TfL's official vehicle checker lets you enter your number plate to confirm instantly whether your car is ULEZ compliant — the Euro standard alone doesn't always tell the full story.
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Registration year is a guide, not a guarantee:
Some diesel cars registered before September 2015 were certified to Euro 6 early, and some registered after may still be Euro 5. Always verify by plate rather than year.
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V5C logbook lists the Euro standard:
Your vehicle's V5C registration document includes the Euro emission standard in section D.2. If it is not listed, the TfL checker or DVLA can confirm.
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Euro 5 Diesel and Other Clean Air Zones
CAZ rules vary by city:
Outside London, Clean Air Zones in cities such as Birmingham, Bath, and Bristol also require diesel cars to meet Euro 6 to avoid a daily charge. Euro 5 diesel typically fails in all UK CAZs.
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Check before you travel:
The GOV.UK CAZ checker covers all English Clean Air Zones and confirms whether your vehicle is chargeable before you drive in.
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What Euro 5 Diesel Drivers Can Do
Upgrade to Euro 6 diesel or electric:
Replacing a Euro 5 diesel with a Euro 6 diesel, hybrid, or electric vehicle removes the daily charge and future-proofs against tightening zone boundaries.
Consider fuel costs when upgrading:
If you're weighing up a newer diesel, the difference in fuel costs between stations can add up quickly. CheckFuelPrices shows live diesel prices at 4,000+ UK stations so you can cut running costs from day one.
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Sources
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