After removing exhaust manifolds:
Reinstall front axle bracket provisionally and remove special tool for securing engine in installation position.
Open drain plug for coolant on left side of engine block.
Drain off coolant and dispose of correctly.
Installation:
Replace sealing ring.
Tightening torque of drain plug 11 11 5AZ. Refer to ENGINE - TIGHTENING TORQUES .
Top up coolant. Vent cooling system and check for leaks. Refer to 17 00 039 VENTING COOLING SYSTEM AND CHECKING FOR LEAKS (N62) .
Remove ignition coils on cylinder bank 5 to 8.
Remove servomotor for left eccentric shaft. Refer to 11 37 022 Removing and installing/replacing servomotor for left eccentric shaft (N62) .
Remove intake air manifold. Refer to 11 61 050 Removing and installing intake air manifold (N62) .
Remove left cylinder head cover. Refer to 11 12 005 Removing and installing / sealing left cylinder head cover (N62 / N62TU) .
Remove left timing case cover. Refer to 11 14 080 Removing and installing top left timing case cover (N62)
Disconnect plug connections and lay engine wiring harness to one side.
Remove spark plugs on cylinder bank 5 to 8.
Remove vent hose on cylinder head.
Detach hose (1) on check valve (2).