You should use the 4 nuts to connect the radiator cooling fan to the coupling while maintaining 9.0 Nm torque (92 kgf-cm or 80 in-lbf). After fixing the fan coupling with 4 nuts at torque 9.0 Nm, proceed to install the fan shroud then the upper radiator support seal. After that install the V-bank cover and No.1 engine under cover sub-assembly one by one. You must connect the cable to the negative battery terminal while using a torque tool to reach 3.9 Nm (40 kgf-cm, 35 in-lbf).