OVMS with LTE module.
Everything works even preheating without connecting to the wallbox.
TCU still connected only the CAN communication pin removed.
TCU must be active after a year otherwise you will lose handsfree.
Before purchasing OVMS I tried to get the original TCU working.
In the radio service menu I performed a reset which completely destroyed the TCU function and even the option to set in the radio disappeared.
I also lost the 360 camera, black screan on radio,
the camera just had to be activated in the service menu, the TCU was completely dead.
Maybe that's why all the functions work for me even though they shouldn't be functional for my year.
Sorry for the terrible English