Install intake camshaft

Clean all bearing positions and coat with motor oil.

Courtesy of BMW OF NORTH AMERICA, INC.
Clean all bearing positions of intake camshaft bearing caps (E1) (E2) (E3) , (E4) (E5) (E6) and (E) coat with motor oil.

Courtesy of BMW OF NORTH AMERICA, INC.

Clean all bearing positions of the intake camshaft and coat with motor oil.

Courtesy of BMW OF NORTH AMERICA, INC.
Check all the roller cam followers (1) of the intake side for correct fit.

Courtesy of BMW OF NORTH AMERICA, INC.
Insert intake camshaft (2) in the bearing brackets in such a way that the mark (1) points towards the top.

Courtesy of BMW OF NORTH AMERICA, INC.

Check fitting sleeves (1) of the thrust bearing for damage, replace if necessary.

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: RISK OF DAMAGE
Engine damage caused by incorrectly installed bearing shells and bearing brackets.
If the bearing shells and bearing brackets are installed incorrectly, then engine damage can occur.

Always install all bearing shells and bearing brackets in the same position from which they were removed.

Courtesy of BMW OF NORTH AMERICA, INC.

Coat all the intake camshaft bearing caps (E1) till (E6) and lay the bearing caps for the thrust bearing (E) with motor oil.
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.

Press down the intake camshaft bearing cap and stepwise apply the screws in the order of (1) to (14) until hand-tight.
Join all bolts in sequence (1) to (14) in half turns.
Observe the joining torque.

Tighten all screws in a sequence from (1) to (14) .

Fig 1: Intake Camshaft Bearing Cap Screws Tightening Sequence

Courtesy of BMW OF NORTH AMERICA, INC.

TIGHTENING TORQUES SPECIFICATION

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

Follow-up work

Refer to ADJUSTING THE CAMSHAFTS WITH THE SPECIAL TOOL .
Refer to INSTALLING THE INTAKE ADJUSTER .
Refer to INSTALLING THE VANOS CENTRAL VALVE OF THE INTAKE ADJUSTER .
Refer to RELEASING VANOS CENTRAL VALVE OF THE EXHAUST CAMSHAFT ADJUSTER .
Refer to INSTALLING THE VANOS CENTRAL VALVE OF THE EXHAUST CAMSHAFT ADJUSTER .
Refer to PRE-TENSIONING THE TIMING CHAIN WITH THE SPECIAL TOOL .
Refer to TIGHTENING THE VANOS CENTRAL VALVE OF THE EXHAUST CAMSHAFT ADJUSTER .
Refer to TIGHTENING THE VANOS CENTRAL VALVE OF THE INTAKE ADJUSTER .
Refer to DISASSEMBLING ALL SPECIAL TOOLS .
Refer to INSTALLING CHAIN TENSIONER .
Refer to CHECKING THE TIMINGS OF THE CAMSHAFT .
Refer to IF INSTALLED: SECURING THE ENGINE OIL COOLER .
Refer to CHECKING THE INTERMEDIATE LEVER CLASSIFICATION .
Refer to INSTALLING ALL INTERMEDIATE LEVERS .
Refer to INSTALLING ALL GATES .
Refer to CHECKING THE POSITION OF THE INTAKE CAMSHAFT .
Refer to CHECKING THE POSITION OF THE INTAKE CAMSHAFT AT CYLINDER 3 AND 4 .
Refer to INSTALLING TORSION SPRINGS .
Refer to INSTALLING THE INTAKE PLENUM .
Refer to INSTALLING THE TANK VENT VALVE .
Refer to INSTALLING CONTROL UNIT BRACKET .
Refer to INSTALLING THE INTEGRATED POWER SUPPLY MODULE (PDM) .
Refer to INSTALLING THE DME CONTROL UNIT .
Refer to INSTALLING CYLINDER HEAD COVER .
Refer to INSTALLING BOTH ACTUATORS .
Refer to INSTALLING HIGH PRESSURE PUMP .
Refer to PREPARING THE INJECTORS FOR INSTALLATION .
Refer to INSTALLING THE HIGH-PRESSURE RAIL WITH INJECTORS OF THE CYLINDERS 4 TO 6 .
Refer to INSTALLING THE HIGH-PRESSURE RAIL WITH INJECTORS OF THE CYLINDERS 1 TO 3 .
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 INTAKE FILTER HOUSING .
Refer to INSTALLING FAN COWL .
Refer to INSTALLING THE REAR TOP CROSS CONNECTION .
Refer to INSTALLING UPPER CROSS CONNECTION .
Refer to INSTALLING THE COVER FOR CENTRAL ENGINE COMPARTMENT .
Refer to INSTALLING THE FRONT HOOD SEAL .
Refer to ACTIVATING ELECTRICAL SYSTEM .
Refer to FILLING AND VENTING THE LOW-TEMPERATURE COOLANT CIRCUIT .
Refer to INSTALLING CENTER FIREWALL LOWER 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 THE COVER OF THE ENGINE COMPARTMENT ON THE REAR LEFT .
Refer to INSTALLING THE REAR RIGHT ENGINE COMPARTMENT COVER .
Refer to INSTALLING LEFT AND RIGHT WIPER ARM .
Refer to INSTALLING ACOUSTIC COVER .
Refer to INSTALLING THE REAR HOOD SEAL .
Refer to INSTALLING THE STIFFENING PLATE .
Refer to INSTALLING FRONT UNDERBODY PROTECTION .
Refer to INSTALLING UNDERBODY PROTECTION AT REAR .
Refer to TAKING HOOD OUT OF THE SERVICE POSITION .