Can I challenge ULEZ compliance?

My daughter has a Merc ML250 Bluetech which has a euro 6 engine and shows emissions of 163 gms/ 100 on the V5C.

According to Merc forums many other owners have challenged the compliance status with TFL and, having looked at part ex in hers she finds that similar vehicles on sale are shown as compliant whilst having the same spec.

Is their any intel as to if this is correct and how one goes about challenging TFL? Their checker suggests “ we’ll tell at the next stage”, but then doesn’t!

Asked on 13 September 2023 by Gerry Kilsby

Answered by David Ross
You can raise a query with the TFL regarding ULEZ on the TFL website here: tfl.gov.uk/modes/driving/ulez-make-an-enquiry-wiza...d, but if your daughter's Mercedes is Euro 6 then it should be compliant. It is important to note that the Euro rating of a vehicle is based on NOx and particulate matter emissions as well as CO2, so a low CO2 rating does not necessarily mean it will be compliant.
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