Remove left, right and centre covers.
Drain coolant. See Group 00.
Disconnect the expansion tank from the radiator, pull it to one side and let it dangle from the hose.
Remove the fan.
Disconnect the coolant hose (arrow) at the frame on the left and drain the radiator.
Use pliers, BMW # 17 5 500, to open the clamp securing the coolant hose to the water pump housing (1).
Remove the radiator fasteners.
Note: Take care not to damage the radiator on the cylinder head cover.
Raise the radiator and release the pin at the bottom from the lug.
Pull the radiator complete with expansion tank to the left and remove.
Installation is the reverse of the removal procedure.
Tightening torque:
- Radiator to main frame: 9 Nm
- Coolant hoses to radiator/engine/frame: 2 Nm