Install intake camshaft of bank 1

Plastic rings (1) are maintenance free and do not need to be replaced.
Check plastic rings for damage, replace if necessary.

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NOTE: TECHNICAL INFORMATION
The rocker arms may slip slightly when the camshaft is positioned. Make sure rocker arms are correctly positioned on the hydraulic valve clearance compensating elements and on valves.
Position intake camshaft.
When screwing the camshafts, make sure the valves have free movement .
Position guide bearing shells according to marks (E1) to (E5) .
Join the screws of the guide bearings with position numbers (1) and (4) in multiple steps by one half turn at a time until flush.

Tighten the screws (1) .

TIGHTENING TORQUE SPECIFICATIONS

Intake/exhaust camshaft
M6	Snug torque	10 Nm
M6	Tightening torque	10.5 Nm

Courtesy of BMW OF NORTH AMERICA, INC.

Tighten down screws (4) .

TIGHTENING TORQUE SPECIFICATIONS

Intake/exhaust camshaft
M6	Snug torque	10 Nm
M6	Tightening torque	10.5 Nm

All intermediate levers (3) must rest correctly on the idler pulley (1) and on the camshaft (4) .
All intermediate levers (3) must rest correctly on the idler pulley (2) and on the eccentric shaft (5) .

Courtesy of BMW OF NORTH AMERICA, INC.