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.

Courtesy of BMW OF NORTH AMERICA, INC.

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

TIGHTENING TORQUES SPECIFICATION

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.

Follow-up work

Refer to INSTALL THE SEALING CAP ON THE CYLINDER HEAD OF CYLINDER BANK 1 .
Refer to PARTIALLY INSTALLING THE GUIDE TUBE FOR THE OIL DIPSTICK .
Refer to INSTALLING THE RIGHT-HAND CHARGE AIR COOLER .
Refer to INSTALL THE COOLANT EXPANSION TANK FOR THE LOW-TEMPERATURE COOLANT CIRCUIT (CHARGE AIR COOLER) .
Refer to SEALING OFF COOLANT FOR LOW-TEMPERATURE COOLANT CIRCUIT .
Refer to INSTALLING THE UNDERBODY PROTECTION OF THE STEERING GEAR OR THE FRONT THRUST FIELD .
Refer to INSTALL THE FRONT UNDERBODY PROTECTION OR FRONT THRUST FIELD .
Refer to INSTALLING THE FRONT LEFT BOTTOM WHEEL ARCH COVER .
Refer to INSTALLING THE FRONT BOTTOM RIGHT WHEEL ARCH COVER .
Refer to INSTALLING FAN COWL .
Refer to INSTALL THE REAR TOP CROSS CONNECTION .
Refer to INSTALL FRONT CROSS CONNECTION .
Refer to INSTALLING THE RIGHT INTAKE FILTER HOUSING WITH THE RIGHT FRONT-END STRUT .
Refer to INSTALLING LEFT INTAKE FILTER HOUSING WITH LEFT FRONT-END STRUT .
Refer to INSTALLING THE COVER ON THE LEFT AND RIGHT IN THE ENGINE COMPARTMENT AT THE TOP
Refer to FILL THE LOW-TEMPERATURE COOLING SYSTEM WITH THE VACUUM FILLING EQUIPMENT .
Refer to VENTING THE LOW-TEMPERATURE COOLING SYSTEM .