Tightening Torques

Tightening torques:

Cylinder head





Insert NEW cylinder head bolts and tighten by hand.
Tighten cylinder head in tightening sequence as follows:
Tighten all bolts to 40 Nm
Tighten all bolts to 60 Nm
Tighten all bolts (1/4 turn) (90°) further using a rigid wrench.
Afterwards, tighten all bolts again 1/4 turn (90°) further

Camshafts bearing caps





Alternating in diagonal sequence, tighten bearing caps 2 and 4 of intake and exhaust camshafts and tighten to 10 Nm (pay attention to bushing)





Install both bearing caps on chain gears of intake and exhaust camshafts. Check camshaft for proper adjustment and tighten bearing cap to 10 Nm (pay attention to alignment bushing)





Coat hatched surface of double bearing cap lightly using sealant D 454 300 A2, install and tighten to 10 Nm (pay attention to bushing).
Install remaining bearing cap and tighten to 10 Nm (pay attention to alignment bushing).

Camshafts bearing caps





Alternating in diagonal sequence, tighten bearing caps 2 and 4 of intake and exhaust camshafts and tighten to 10 Nm (pay attention to bushing)





Install both bearing caps on chain gears of intake and exhaust camshafts. Check camshaft for proper adjustment and tighten bearing cap to 10 Nm (pay attention to alignment bushing)





Coat hatched surface of double bearing cap lightly using sealant D 454 300 A2, install and tighten to 10 Nm (pay attention to bushing).
Install remaining bearing cap and tighten to 10 Nm (pay attention to alignment bushing).

Main bearing Cap
Tightening Torque 65 Nm plus 90° (1/4 turn) additional turn

Connecting rod bolt
Tightening Torque 30 Nm plus 1/4 turn (90°)

Belt pulley/harmonic balancer
Tightening Torque 10 Nm plus 1/4 turn (90°)

Drive plate
Tighten torque 30 Nm

Oil pump
Tightening Torque 20 Nm

Water Pump
Tightening Torque 15 Nm