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

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MODEL 212, 218, 221 with ENGINE 642.8 

Shown on ENGINE 642.850 

Fig 1: Vacuum Pump, Line & Noise Damper
G09976626Courtesy of MERCEDES-BENZ USA

MODEL 218 as of model year 2015 

Fig 2: Cable Duct
G09976627Courtesy of MERCEDES-BENZ USA
REMOVINGINSTALLING Remove/install     
1 Remove engine cover MODEL 212, 218, 221 with ENGINE 642.8  
MODEL 221 with ENGINE 642.8
INSTALLATION IMPORTANT Install engine cover after engine test run.
AR01.10-P-2405SXI
2 Detach vacuum line (3) from vacuum pump (4)    
3 Unclip cable duct (6) at catch hooks (arrows) and pull off upwards MODEL 218 with ENGINE 642.8 as of model year 2015  
4 Unscrew screws/bolts (2) TORQUE SPECIFICATION Bolt, noise muffler *BA43.05-P-1003-01A 
5 Remove noise muffler (1). INSTALLATION IMPORTANT Check sealing ring on noise damper (1) for damage.
If damage is present:

Replace sealing ring on noise damper (1).
 
6 Remove bolts (5) and remove vacuum pump (4) forwards INSTALLATION IMPORTANT Align drivers on vacuum pump (4) and camshaft to each other before assembly, and replace seal.
INSTALLATION IMPORTANT If aluminum bolts were installed at the factory, replace them with steel bolts.
 
TORQUE SPECIFICATION Bolt, vacuum pump to cylinder head *BA43.05-P-1001-01A 
7 Clean sealing surfaces    
8 Install in the reverse order    
INSPECT Check     
DANGER Risk of accident  from vehicle starting off by itself when engine running. Risk of injury  (bruises and burns) resulting from working on the engine while it is being started or when it is running. Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts. AS00.00-Z-0005-01A
9 Carry out test run engine and check vacuum pump (4) for leaks and function
VACUUM PUMP

Number Designation MODEL 164, 166, 203, 204, 207, 209, 211, 212, 218, 219, 221, 222, 251 with ENGINE 642
BA43.05-P-1001-01A Bolt, vacuum pump to cylinder head Nm 9
VACUUM PUMP

Number Designation MODEL 164, 166, 203, 204, 207, 209, 211, 212, 218, 219, 221, 222, 251 with ENGINE 642
BA43.05-P-1003-01A Bolt, noise muffler Nm 9