Installing the hydraulic chain tensioner of cylinder bank 1

NOTE: RISK OF DAMAGE
Damage to timing chain or timing chain drive.
Turning the engine without chain tensioner or special tool can result in damage to the timing chain and timing chain drive.

Always turn the engine with the chain tensioner or the special tool.

Feed in and position the hydraulic chain tensioner (2) .
Tighten the screws (1) .

TIGHTENING TORQUE SPECIFICATIONS

Chain tensioner to cylinder head
screw	Tightening torque	13 Nm

Courtesy of BMW OF NORTH AMERICA, INC.

Remove the special tool 0 491 012 (11 4 120) or transportation retainer (3) from the bore.

Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work

Refer to INSTALLING THE SEALING CAP ON THE CYLINDER HEAD OF CYLINDER BANK 1 (CYLINDER HEAD COVER MOUNTED) .
Refer to INSTALLING VANOS SOLENOID ACTUATOR, EXHAUST OF CYLINDER BANK 1 .
Refer to INSTALLING THE ELECTRIC COOLANT PUMP WITH THE HOLDER (CYLINDER HEAD COVER MOUNTED) .
Refer to INSTALLING THE RIGHT-HAND CHARGE AIR COOLER .
Refer to CLOSING THE LOW-TEMPERATURE COOLANT CIRCUIT .
Refer to INSTALLING FRONT UNDERBODY PROTECTION .
Refer to INSTALLING THE LOWER LEFT FRONT WHEEL ARCH COVER .
Refer to INSTALLING FAN COWL .
Refer to INSTALLING THE RIGHT UNFILTERED-AIR DUCT .
Refer to INSTALLING OIL FILLER NECK .
Refer to INSTALLING RIGHT INTAKE SILENCER HOUSING .
Refer to INSTALLING THE LEFT UNFILTERED-AIR DUCT .
Refer to INSTALLING LEFT INTAKE SILENCER HOUSING .
Refer to INSTALLING THE REAR TOP CROSS CONNECTION .
Refer to INSTALLING THE FRONT-END STRUT .
Refer to INSTALLING UPPER CROSS CONNECTION .
Refer to INSTALLING ACOUSTIC COVER .
Refer to INSTALLING THE COVER IN THE ENGINE COMPARTMENT AT TOP LEFT and INSTALL THE COVER IN THE ENGINE COMPARTMENT ON THE TOP RIGHT .
Refer to FILLING THE LOW-TEMPERATURE COOLING SYSTEM WITH THE VACUUM FILLING EQUIPMENT .
Refer to VENTING THE LOW-TEMPERATURE COOLING SYSTEM .