Cylinder Head: Installation

Clean all gasket mating surfaces. Remove oil from head bolt threaded holes in cylinder block.
Clean and lubricate bolt heads and threads of head bolts. Using new head gasket, install cylinder head and bolts.
On 528e models, tighten head bolts in 2 steps. See Fig 1. On all other models, tighten in 3 steps. See Fig 2.

Fig 1: 528e Cylinder Head Tightening Sequence
Courtesy of BMW OF NORTH AMERICA, INC.

Tighten head bolts in 2 steps. Use angle-calibrated torque wrench for final tightening (engine warm).
On all models, retighten head bolts after engine has been warmed to operating temperature. Using special torque wrench (11 2 110), retighten head bolts to torque angle of 20-30°.
Check head bolt torque (except 528e) at 600 miles after cylinder head service. If necessary, retighten with engine cold. Never loosen bolts during tightening sequence; turn only in tightening direction.

Fig 2: 633CSi & 733i Cylinder Head Tightening Sequence
Courtesy of BMW OF NORTH AMERICA, INC.

Tighten head bolts in 3 steps. Use angle-calibrated torque wrench for final tightening (engine warm).
On all models, install camshaft sprocket and timing chain (or timing belt). Ensure valve timing is correct. Install remaining components in reverse order of removal, using new gaskets where required. Adjust valves.