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Home >> Mercedes Benz >> 2012 >> Sprinter 2500, Van Crew Extended >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Air Intake, Turbo Charging -- Model 906 (Engine 642) >> Testing & Repair >> Remove/Install Turbocharger Silencer - Ar09.40-D-6920SG

Remove/Install Turbocharger Silencer - Ar09.40-D-6920SG

ENGINES 642.896 /898 /993 in MODEL 906 

Fig 1: Turbocharger Silencer Remove/Install Component Locations - Shown on engine 642.896
G08211418Courtesy of MERCEDES-BENZ USA
REMOVE/INSTALL TURBOCHARGER SILENCER - ENGINES 642.896 /898 /993 IN MODEL 906

REMOVINGINSTALLING Remove/install     
1 Remove air intake hose downstream of air filter   AR09.10-D-8030SF 
2 Remove engine trim panel On engine 642.992/993
IMPORTANTInstallation:  Only install engine cover after checking for leaks.
AR01.10-D-2405SF
3 Unscrew bolt from bracket (7) and pull out bracket (7)    
4 Unscrew bolts (10) from tensioning shackle (9) and engine charge air duct (1) TORQUE SPECIFICATION  
5 Remove bolts (6, 8) on noise damper (5) TORQUE SPECIFICATION  
6 Unscrew bolts (3) from tensioning shackle (2) and engine charge air duct (1) TORQUE SPECIFICATION  
7 Unclip vacuum line (4) from cover on left cylinder head cover    
8 Remove noise damper (5) with engine charge air duct (1) IMPORTANT Clean open connections on charge air system and close.
IMPORTANTInstallation:  Replace seal rings and coat with antifriction paste.
 
SPECIAL TOOL Figure
Lubricant paste  
9 Remove noise damper (5) from engine charge air duct (1) IMPORTANTInstallation:  Replace seal ring and coat with antifriction paste.
Lubricant paste
 
10 Install in the reverse order    
DANGER Risk of accident  caused by vehicle starting off by itself when engine is running. Risk of injury  caused by contusions and burns during starting procedure or when working near the engine as it is running Secure vehicle to prevent it from moving by itself.
Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.
AS00.00-Z-0005-01A
11 Test run engine and check connection points in area of engine charge air duct (1) and nose damper (5) for leakage    
CHARGE AIR PIPE/CHARGE AIR COOLING TORQUE SPECIFICATIONS - ENGINE 642

Number Designation Engine 642
BA09.41-N-1001-01O Bolt, engine charge air duct on turbocharger to holder Nm 9
BA09.41-N-1003-01O Bolt from turbocharger noise damper to holder Nm 9
Fig 2: Identifying Set Of Protective Covers (001 589 01 91 00)
G08211419Courtesy of MERCEDES-BENZ USA
REPAIR MATERIALS - LUBRICATING PASTE

Number Designation Order number
BR00.45-Z-1002-06A Lubricating paste, rubber parts 2.5 kg, DB supply specification 6867.00 A 000 989 01 60