Bit late to the topic - but I got to the bottom of the charge rate issues. For the first 6 months of production, Mercedes shipped the cars with a 3-phase compatible cable but only a 20A version. This meant that when you plugged into a regular single phase 7kw charger, you would only get 3.7kw. After September 2020, they changed UK cars to get a single phase 32A cable which then allows the full 7kw on a single-phase supply. My car was one of the first built, so came with the 3-phase cable. I bought myself another cable and can now enjoy the full charge rateHi Blueged thanks for that.
So there are people on other forums claiming 7kW change rates from a single phase supply, so what rate does yours charge at please?