TFE Control Unit

The hybrid pressure refuelling electronic control unit is installed in the luggage compartment floor to the right of the high voltage battery.

The task of the hybrid pressure refuelling electronic control unit is to limit the internal pressure of the fuel tank. To do so, the hybrid pressure refuelling electronic control unit reads in the data from the sensors and buttons, evaluates it and, if necessary, activates the fuel tank isolation valve. In addition, it controls the refuelling procedure. Information is exchanged with other control units via the PTCAN. Power is supplied to the hybrid pressure refuelling electronic control unit via the auxiliary fuse block (terminal 30g).

Fig 1: Identifying Installation Location Of TFE Control Unit

Courtesy of BMW OF NORTH AMERICA, INC.