Which frequency TPMS should I use?
Hi, I have a ‘20 G16 M850i that needs a new TPMS sensor. I’m having difficulty finding out if I need a 433MHz or 315MHz one. Looking to buy Schrader 28238 sensors that are pre programmed but upon looking at the bmw parts website with my VIN, it shows both 433 and 315 versions fit (probably because it doesn’t know which cars use which system). Any guidance on how I can find out would be appreciated. If it helps, I can find the pressure and temperature through the iDrive interface. Also any comments on the Schrader 28238 TPMS sensors? Do they work out of the box like they suggest?