Subaru BRZ 2016 Service Manual page 150

PERIODIC MAINTENANCE SERVICES
B: REPLACEMENT
CAUTION:
Do not remove the radiator cap sub-assembly while the engine and radiator are hot in order to pre-
vent possible burns. There is a possibility of fluid or steam surging out due to pressurization.
1) Lift up the vehicle.
2) Remove the service hole cover of the front bumper under cover.
3) Install a hose with an inner diameter of φ8 mm (0.31 in) to the drain plug.
4) Loosen the radiator drain cock plug and drain the engine coolant into a container.
5) Remove the radiator cap.
6) After draining, tighten the drain plug, and install the service hole cover.
7) Lower the vehicle.
Engine Coolant
PM-60
PM-00622
PM-00623