Alic01
Member
There was a two year phasing in period so it’s mandatory from July 2021. They have not been fitted on UK M3’s until this recent batch just delivered this quarter so basically 21 plate onwards will have it. Merc started installing them in December 2020 update but have barely delivered any PHEV’s since thenI'm confused (it's not difficult). All new EV cars built after July 2019 should have this system fitted and activated? Having just searched on YouTube as a result of this thread, I'm hearing these (hideous) noises for the first time, and I can't understand why I've not heard it at all on the numerous 2021 M3 reviews I've been watching.