BMW m3 Water Tank Drain Screw

Hello, BMW drain screws are generally located at the lower left of the water tank. If the antifreeze is replaced, it is recommended not to drain water from the drain hole of the water tank, which may easily lead to water leakage from the drain screw hole. It is recommended to unplug the drain pipe and replace the antifreeze.

If in doubt, please ask the car master. 4S shop professional technician, 10 minutes to solve.