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My Mercedes E-Class has to pay ULEZ the same car with a larger engine but is exempt, is this right?

I have a 1995 Mercedes W124 convertible. I love the car but it is not ULEZ compliant. I have recently seen the same model and year for sale that is stated as ULEZ compliant and I have checked against its number plate and it is indeed correct. The main difference is my car has the E220 engine and the sale car has the E320 engine which I would think is worse. Whatever surely the age disqualifies the cars anyway. Am I missing a trick?
BTW the mileage on my car is considerably lower.

Asked on 13 November 2023 by Anthony Dring

Answered by David Ross
The criteria for ULEZ charging is based on the nitrous oxide (NOx) emissions of a vehicle, rather than CO2 emissions which have previously been used to calculate VED rates. Although the E320 is a larger-capacity engine and will likely use more fuel than your E220, this does not necessarily mean it has higher NOx emissions.

Will you have to pay the low emissions charge?

Use our ULEZ checker to find out if your vehicle is subject to ULEZ charges. Simply enter your number plate into the Honest John ULEZ checker to see if you will have to pay to enter the London Ultra Low Emission Zone.

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