S 600 Sedan (140.057) V12-6.0L (120.982) (1996)
Timing Chain Guide: Service and Repair
Removing, Installing and Sealing
PRECEDING WORK
Both front covers removed.
OVERVIEW
Intake manifold gaskets (1):
Remove, install.
Guard plate 120 589 06 31 00:
Attach to intake ports.
Crankshaft:
Turn to 30° after ignition TDC on cylinder 1 (step 3).
Timing chain:
Mark in relation to camshaft sprockets (step 4).
Chain tensioner (2):
Remove, install.
Right exhaust camshaft sprocket (3):
Unscrew, (step 6).
Guide rail (4):
Remove (step 7).
Profile gasket with cover (13):
Remove, replace (step 8).
Guide rail bridge (15):
Unscrew, remove (step 9).
Sealing surfaces:
Clean.
Contact surface of guide rail bridge (15):
Coat with sealant 002 989 00 20 10 (step 10).
Guide rail bridge (15):
Install (step 11).
Fitted bolts (16):
Install with washers downward, tighten (21 Nm) (stop 11).
Bolts (17):
Install, tighten (21 Nm) (step 11).