Common symptoms include a “cheaping” noise when stopping the engine. Also full separation resulting in destruction of the radiator and viscous fan!
You will also need a new genuine bolt LYG101190 .
A brand new bolt must be used. Required torque is 460Nm dry. Tight is not tight enough. Beg, borrow or steal a suitable torque wrench. The bolts are TTY bolts and must not under any circumstances be reused and must be torqued to spec.