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Bolt Tightening Procedure For Cylinder Head Cover - AR01.20-P-5014-03MNA

Engine 176, 177, 178 

CRANKCASE VENTILATION SYSTEM, CYLINDER HEAD COVER

Number Designation Engine 176 Engine 177
BA01.20-P-1004-01J Bolt, cylinder head cover to cylinder head/camshaft housing Stage 1 Nm 10 10
Stage 2 ∠° 90 90
CRANKCASE VENTILATION SYSTEM, CYLINDER HEAD COVER

Number Designation Engine 178
BA01.20-P-1004-01J Bolt, cylinder head cover to cylinder head/camshaft housing Stage 1 Nm 10
Stage 2 ∠° 90

IMPORTANT Tighten cylinder head cover bolts in the numerical sequence. Replace screw/bolts for cylinder head cover.

Left cylinder head cover 

  1. Tighten screw/bolts (1 to 25) according to Stage 1 TORQUE SPECIFICATION .
  2. Tighten screw/bolts (1 to 25) according to Stage 2 TORQUE SPECIFICATION .
    G12816377Courtesy of MERCEDES-BENZ USA

    Right cylinder head cover 

  3. Tighten screw/bolts (1 to 25) according to Stage 1 TORQUE SPECIFICATION .
  4. Tighten screw/bolts (1 to 25) according to Stage 2 TORQUE SPECIFICATION .
G12816378Courtesy of MERCEDES-BENZ USA