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Remove/install rail pressure sensor - AR07.16-P-1055GZB

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ENGINES 642 in MODEL 164, 251 

Fig 1: Identifying Rail Pressure Sensor & Rails
G06878051Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
REMOVINGINSTALLING Remove/install     
DANGER Risk of explosion  caused by fuel igniting. Risk of injury  to skin and eyes caused by fuel spraying out at high pressure Keep all ignition sources out of hazard area. Do not carry out any work on systems when they are under pressure AS07.16-Z-0001-01A 
DANGER Risk of injury  caused by fingers being pinched or crushed  when removing, installing or aligning hoods, doors, trunk lids, lift gates or sliding roof Keep body parts and limbs well clear of moving parts. AS00.00-Z-0011-01A
1 Removes strut tower brace Model 164.8 only
IMPORTANT Remove strut tower brace from strut tower mounts.
AR62.30-P-2500GY
2 Remove engine air intake duct downstream of air filter   AR09.10-P-8130GZB
3 Disconnect electrical connector to rail pressure sensor (B4/6)    
4 Remove heat shield from turbocharger Model 164 AR09.40-P-6020GZB
Model 251 AR09.40-P-6020RTB
5 Remove Engine suspension lugs TORQUE SPECIFICATION *BA01.30-P-1006-01S 
6 Unscrew rail pressure sensor (B4/6) from rail (21) IMPORTANT When working on injection system ensure scrupulous cleanliness! Clean separation points before opening.  
TORQUE SPECIFICATION *BA07.16-P-1013-01C 
7 Close rail pressure sensor connection (B4/6) IMPORTANT Close rail pressure sensor connection (B4/6) immediately after removal to protect from contamination.  
SPECIAL TOOL Figure
8 Install in the reverse order    
9 Read out fault memory    
Connect STAR DIAGNOSIS and read out fault memory   AD00.00-P-2000-04A
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
10 Carry out engine test run    
COMMON RAIL DIESEL INJECTION (CDI)

Number Designation Engine 642
BA07.16-P-1013-01C Rail pressure sensor to rail Nm 70
CYLINDER HEAD

Number Designation Engine 642
BA01.30-P-1006-01S Bolt, lifting eye to cylinder head Nm 14
Fig 2: Identifying Set Of Stop Plugs (129 589 00 91 00)
G06878052Courtesy of MERCEDES-BENZ OF NORTH AMERICA.