Install exhaust camshaft

Coat all bearing positions (1) with fresh motor oil.

Courtesy of BMW OF NORTH AMERICA, INC.
Clean all bearing positions of the exhaust camshaft bearing caps (A1) , (A2) and (A) and coat with engine oil.
Clean the bearing positions (1) of the high pressure pump bracket and coat with motor oil.

Courtesy of BMW OF NORTH AMERICA, INC.
Clean all the bearing positions (arrows) of the exhaust camshaft (1) and coat with motor oil.

Courtesy of BMW OF NORTH AMERICA, INC.
Make sure that the roller cam follower (1) is fitted correctly before installing the exhaust camshaft.
Coat the roller cam follower (1) with fresh motor oil.

Courtesy of BMW OF NORTH AMERICA, INC.
Insert the exhaust camshaft (1) in the cylinder head, so that the mark (2) points upwards .

Courtesy of BMW OF NORTH AMERICA, INC.
Check the fitting sleeves (1) for correct seating and damage and replace if necessary.

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: TECHNICAL INFORMATION
The camshaft bearing caps must not be mixed up. The camshaft bearing caps must be installed in the installation position from which they were removed.
Position all the exhaust camshaft bearing caps (A1) (A2) (A) and the high pressure pump bracket (1) on the cylinder head and press down.
NOTE: The exhaust camshaft bearing caps are legibly labeled from the intake side and marked with A1, A2 and A.

NOTE: Exhaust camshaft bearing cap A is a thrust bearing.

Courtesy of BMW OF NORTH AMERICA, INC.
Check the tensile strength of the screws for the bearing cap.
The illustration shows the screw with a tensile strength of 8.8 .

Courtesy of BMW OF NORTH AMERICA, INC.
Check the tensile strength of the screws for the bearing cap.
The illustration shows the screw with a tensile strength of 10.9 .

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: TECHNICAL INFORMATION
The camshaft is under tension due to the valve springs. Tighten or loosen each screw on the camshaft bearing caps in the prescribed sequence only by half a turn. Repeat procedure.
Join all the screws in the sequence (1) to (10) in half turns .
Tightening torque to be observed .

Fig 1: Exhaust Camshaft Bearing Cap Screws Tightening Sequence
Courtesy of BMW OF NORTH AMERICA, INC.

Tighten all screws in a sequence from (1) to (10) .

TIGHTENING TORQUE SPECIFICATION

Exhaust camshaft to cylinder head
M6	Tensile strength of screw 8.8
	Joining torque	9.6 Nm
	tightening torque	9.6 Nm
M6	Tensile strength of screw 10.9
	Joining torque	11.8 Nm
	tightening torque	11.8 Nm

Position and install the roller tappet (1) .
Make sure the pin (2) is correctly positioned in the guide (3) .
Insert and install the roller tappet (1) .

Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work

Refer to ADJUSTING THE CAMSHAFTS WITH THE SPECIAL TOOL .
Refer to INSTALLING EXHAUST CAMSHAFT ADJUSTER .
Refer to INSTALLING THE VANOS CENTRAL VALVE OF THE EXHAUST CAMSHAFT ADJUSTER .
Refer to RELEASING THE VANOS CENTRAL VALVE OF THE INTAKE ADJUSTER .
Refer to INSTALLING THE VANOS CENTRAL VALVE OF THE INTAKE ADJUSTER .
Refer to PRE-TENSIONING THE TIMING CHAIN WITH THE SPECIAL TOOL .
Refer to TIGHTENING THE VANOS CENTRAL VALVE OF THE INTAKE ADJUSTER .
Refer to TIGHTENING THE VANOS CENTRAL VALVE OF THE EXHAUST CAMSHAFT ADJUSTER .
Refer to DISASSEMBLING ALL SPECIAL TOOLS .
Refer to INSTALLING CHAIN TENSIONER .
Refer to CHECKING THE TIMINGS OF THE CAMSHAFT .
Refer to INSTALLING CYLINDER HEAD COVER .
Refer to INSTALLING BOTH ACTUATORS .
Refer to INSTALLING THE HEAT SHIELD ON THE CYLINDER HEAD .
Refer to INSTALLING THE HOLDER OF THE POSITIVE BATTERY CABLE .
Refer to PREPARING THE INJECTORS FOR INSTALLATION .
Refer to INSTALLING THE RAIL WITH INJECTORS .
Refer to INSTALLING HIGH PRESSURE PUMP .
Refer to INSTALLING THE HIGH-PRESSURE LINE BETWEEN THE HIGH-PRESSURE PUMP AND THE HIGH-PRESSURE RAIL .
Refer to INSTALLING FUEL DELIVERY LINE .
Refer to INSTALLING ALL SPARK PLUGS .
Refer to INSTALLING ALL IGNITION COILS .
Refer to INSTALLING THE CYLINDER HEAD COVER ACOUSTIC COVER .
Refer to INSTALLING THE ACOUSTIC COVER FOR THE ENGINE, FRONT .
Refer to INSTALLING THE CLEAN AIR PIPE WITH THE RESONATOR .
Refer to CONNECTING ALL BATTERY GROUND LEADS .
Refer to INSTALLING CENTER FIREWALL LOWERING PART .
Refer to INSTALLING ACOUSTIC COVER AT REAR .
Refer to INSTALLING THE CENTER COWL UPPER PART .
Refer to INSTALLING WINDSHIELD PANEL COVER .
Refer to INSTALLING LEFT AND RIGHT WIPER ARM .
Refer to INSTALLING THE COVER OF THE ENGINE COMPARTMENT ON THE REAR LEFT .
Refer to INSTALLING THE REAR RIGHT ENGINE COMPARTMENT COVER .
Refer to INSTALLING THE REAR HOOD SEAL .
Refer to INSTALLING ACOUSTIC COVER .
Refer to INSTALLING UNDERBODY PROTECTION AT REAR .
Refer to INSTALLING THE CENTER UNDERBODY PROTECTION .
Refer to INSTALLING THE UNDERBODY PROTECTION OF THE STEERING GEAR .
Refer to INSTALLING FRONT UNDERBODY PROTECTION .
Refer to TAKING HOOD OUT OF THE SERVICE POSITION .