Why does my private plate now make my car non ULEZ compliant?

My '55 Registered Audi S4 4.2 Cabriolet was OK for ULEZ on it's original 55 Plate, but having moved it onto an S40 Plate purchased direct from DVLA it is no exempt, how do I fix this?

Asked on 29 September 2023 by Oldboy

Answered by David Ross
Other drivers who have added a private registration to their car are experiencing similar problems, as the congestion charge system relies on data from the DVLA. Until the DVLA has updated its records to reflect the change in number plate, the car will show as non-compliant.
Similar questions
I have an auto pay ULEZ account with TfL for my black Skoda Yeti 4x4 for my occasional visits to visit family in Wimbledon. Having been there the last weekend I was expecting a charge notice email but...
I am in the process of buying a car and want to put my private number plate on retention prior to part exchanging my current car. The dealership has advised that, after using the DVLA online retention...
How can I get a private number plate without breaking the bank?
Related models
Better than previous A4 in virtually every respect. Classy looks, plenty of kit, roomy cabin and a good crash safety rating.