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Remove/install vacuum pump - AR43.05-P-1320MMB

MODEL 216, 221 with ENGINE 157, 278 

Fig 1: Identifying Vacuum Pump Remove/Install Components
G10110470Courtesy of MERCEDES-BENZ USA
MODIFICATION NOTES

27.7.10 Detach vacuum hose from vacuum pump, added Step 8  
REMOVINGINSTALLING Remove/install     
DANGER Risk of injury  caused by fingers being pinched or crushed  when removing, installing or aligning hoods, doors, trunk lids, liftgates or sliding roof Keep body parts and limbs well clear of moving parts. AS00.00-Z-0011-01A
1 Remove engine trim panel    
2 Remove left-hand air filter housing    
3 Remove insulation on left rail    
4 Remove center section of bulkhead    
5 Detach engine wiring harness to ME-SFI [ME] control unit (N3/10) and rear intake manifold   AR01.00-P-2410-02MMB
6 Unclip engine wiring harness to intake manifold and place to one side    
7 Detach vacuum line (2) to vacuum pump (1) and intake manifold    
8 Detach vacuum hose (4) from vacuum pump (1)    
9 Remove bolts (3) from vacuum pump (1) INSTALLATION IMPORTANT Replace the bolts (3).  
TORQUE SPECIFICATION *BA43.05-P-1001-01K 
10 Remove vacuum pump (1) upwards INSTALLATION IMPORTANT Clean sealing surfaces and install new sealing rings. Note position of drive plate for vacuum pump (1) during assembly.  
11 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
12 Test run engine and carry out leak check    
VACUUM PUMP

Number Designation Engine 157 Engine 278
BA43.05-P-1001-01K Bolt, vacuum pump to cylinder head/cylinder head cover Nm 9 9