No, Euro 6 diesel cars do not pay the ULEZ charge. Vehicles that meet the Euro 6 standard for NOx and PM emissions are exempt, which includes most diesel cars first registered from September 2015 onwards. All petrol cars meeting Euro 4 standards (generally registered after 2005) are also compliant and exempt.
Yes, Euro 6 is the standard for ULEZ compliance for diesel vehicles, while petrol cars need Euro 4. This means diesel cars meeting the Euro 6 standard (typically registered from September 2015/2016) are exempt from the Ultra Low Emission Zone (ULEZ) charge, along with petrol cars that meet Euro 4 or higher.
NOx Emission Limits: Given that the current Euro 6 standards set the NOx limit at 60 milligrams per kilometre for petrol cars and 80 milligrams per kilometre for diesels, will all diesel and petrol vehicles need to adhere to the Euro 7 limit of 60 milligrams of NOx to remain ULEZ compliant starting July 1, 2025.
Which cars are free to drive in the ULEZ? Cars that are free to drive in the ULEZ must be Euro 6 (diesel) or Euro 4 (petrol) compliant. That means low emission and zero-emission vehicles such as electric cars will not be charged.
It can affect how much you pay for car tax. Road tax for cars registered on or after 1st March 2001 is based on CO2 emissions and fuel type. Diesel cars that meet the Real Driving Emissions 2 (RDE2) standards for full Euro 6d compliance pay substantially less in tax for the first registration year.
Should you buy a Euro 5 vs Euro 6? What you thought
Will Euro 6 diesels be banned?
There are currently no plans to ban Euro 6 diesels from any UK towns and cities, although this may change in the future. If you're looking to do your bit for the environment, there are a number of ways you can reduce your emissions, from changing the fuel you use to simply leaving the car at home once in a while.
Does every diesel car and van need AdBlue? AdBlue should only be used in diesel cars fitted with an SCR system, so if in doubt, consult the vehicle handbook. As a rule of thumb, the more recently the diesel car was built, the more likely it is to use AdBlue, as the Euro 6 regulations were introduced in 2015.
How old does a car have to be to not be ULEZ compliant?
Although classic and historic vehicles over 40 years old are exempt from ULEZ, there are many newer than that which are now subject to the ULEZ charge.
When will Euro 7 come into force? Euro 7 will come into force in November 2026. Originally, Euro 7 regulations were expected to begin in mid-2025. However, the timeframe has been pushed back due to debate over the strictness of the rules.
Will the ULEZ change to Euro 7? As of now, there is no confirmed change to London's ULEZ standard to require Euro 7 compliance for all vehicles. TfL and the Mayor's office have said that the current minimum standard remains at Euro 4 petrol and Euro 6 diesel for cars until 2028.
Yes, you can still drive your petrol car after 2035; the ban applies only to the sale of new petrol/diesel cars, not existing ones, so you can continue to own, drive, buy, or sell used petrol cars, but you'll need to switch to electric or hydrogen when buying a brand-new vehicle from 2035 onwards.
For example, Euro 5 diesel cars were permitted to emit 125% more NOx than Euro 6 diesel cars. This is why the ULEZ requires all diesel vehicles to meet the Euro 6 standard.
The first standard, Euro 1, has been followed – with increasingly strict limits – by the Euro 2 to Euro 6 standards. Manufacturers who sell their vehicles in Europe must equip their vehicles or engines with components that comply with the emission limits set by these standards.
Euro 5 engines required all diesel cars to have particulate filters (DPFs) to trap microscopic pieces of soot, while Euro 6 engines made selective catalytic reduction (SCR) or AdBlue systems mandatory for diesel cars to reduce NOx emissions.
Blue badge holders will need to pay the ULEZ charge unless their non-compliant vehicle qualifies for one of the following 3 grace periods. We've provided a brief summary of these grace periods here, but you should visit our discounts and exemptions page for full details, eligibility criteria and the online application.
To qualify for historic vehicle tax exemption in the UK, cars must be at least 40 years old. If your car or van was built before 1 January 1984 or registered before 8 January 1984, you do not need to pay road tax as of this past April (1 April 2024).
There are no plans to change the ULEZ standards at present. The current standards for vehicle emissions are informed by the European emissions standards. The current standards for vehicles in the ULEZ is Euro 4 for petrol vehicles and Euro 6 for diesel vehicles.
No, an AdBlue delete generally means a vehicle will not pass an MOT because it's considered tampering with emissions control systems, making it illegal for road use in the UK; while MOT testers might not detect software changes, the system is required for compliance, and tampering leads to potential fines, insurance issues, and MOT failure if detected, especially as emissions rules tighten.
In a direct comparison of the 2024 Audi Q7 vs. BMW X5, the Audi Q7 is an overall better SUV for multiple reasons. The Audi Q7 provides two engine options to fit your driving and trailering needs, whereas the BMW X5 has one standard engine across its Core models.
