Preloading the timing chain 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.

• Hand-tighten the bolts (1)  .
• Pre-tension timing chain on special tool 2 249 162 at hexagon screw (2) with special tool  0 496 778 (00 9 460)  to 0.6 Nm. 

TIGHTENING TORQUE SPECIFICATIONS

Preload timing chain
tightening torque	0.6 Nm

Courtesy of BMW OF NORTH AMERICA, INC.