11 12 100 Removing and installing/replacing cylinder head (M52TU / M54 / M56): Notes

WARNING: This page is about a different car, the 2005 BMW Z4, 2004 BMW Z4, and 2003 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

00 0 200
00 9 120

Remove both exhaust manifolds . See Exhaust Manifold .

NOTE: After removing exhaust manifolds:

Reinstall engine support arm with engine mount and remove special tool 00 0 200.

Remove intake filter housing with air-mass flow sensor.

Remove cylinder head cover . See Cylinder Head With Cover .

Remove all spark plugs. See 12 12 011 REPLACING ALL SPARK PLUGS .

Remove intake air manifold . See 11 61 050 Removing And Installing Intake Air Manifold (M54) .

Remove coolant drain plug in engine block. Drain and dispose of coolant.

Installation:

Replace sealing ring on drain plug.

Tightening torque, see 11 11 5AZ in ENGINE - TIGHTENING TORQUES .

Vent cooling system and check for leaks . See 17 00 039 VENTING COOLING SYSTEM AND CHECKING FOR LEAKS .

Remove coolant thermostat housing. . See Coolant Thermostat .

Remove coolant pipe.

NOTE: If the coolant pipe cannot be fed out:

Release banjo bolt (1) and disconnect oil pressure line for VANOS adjustment unit.

Fig 1: Removing Banjo Bolt And Disconnecting Oil Pressure Line For VANOS Adjustment Unit

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Replace O-ring on coolant pipe.

If necessary, replace sealing rings on banjo bolt (1).

Tightening torque of banjo bolt (1), see 11 36 2AZ in ENGINE - TIGHTENING TORQUES