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Remove/Install Vacuum Pump - AR43.05-P-1320XGA

Model 463 with engine 176 

as of model year 2019 

Fig 1: Vacuum Pump Components Location - Model 463 With Engine 176 As Of Model Year 2019
G13658399Courtesy of MERCEDES-BENZ USA
WARNING Risk of injury.  Skin or eye injuries may result when handling hot or glowing objects. Wear protective gloves, protective clothing and safety glasses, if necessary. AS00.00-Z-0002-01A
CAUTION Risk of injury  caused by scraping or cutting body parts on sharp vehicle parts Always wear protective gloves when working on or near sharp and non-deburred vehicle parts.
Deburr repair panels.
AS00.00-Z-0017-01A
  Notes on avoiding damage through contamination and foreign objects   AH00.00-P-5000-01A
REMOVINGINSTALLING Remove/install     
1 Remove right air filter housing. INSTALLATION IMPORTANT : Only install upper engine cover after the leak test. AR09.10-P-1152XGA
2 Remove engine lifting lug at rear right.   AR01.20-P-5012-02XGA
    TORQUE SPECIFICATION M6x1 *BA00.10-P-1002-04A 
    TORQUE SPECIFICATION Bolt, heat shield/rear lifting eye to cylinder head *BA01.30-P-1003-01N 
    SPECIAL TOOL Record plug Fig 2
3 Remove vacuum line (4) from vacuum pump (9) and seal openings using suitable stop plugs. SPECIAL TOOL Record plug Fig 2
4 Remove bolts (5) and remove heat shield (6). E3 Bolt, heat shield to vacuum pump *BA43.05-P-1007-01B 
5 Remove bolts (7) and remove vacuum pump (9). INSTALLATION IMPORTANT : Replace seal.
IMPORTANT Note installation position of drive plate.
TORQUE SPECIFICATION Bolt, vacuum pump to cylinder head
*BA43.05-P-1002-01B 
6 Install in the reverse order.    
WARNING
7
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.
Carry out engine test run, while doing so check service brake for proper operation and engine for leak tightness.
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
8 Install upper engine cover.   AR01.10-P-2405XGA
METRIC SCREWS/BOLTS AND NUTS AS PER MBN 10 105, 10 143

Number Designation 8.8 10.9
BA00.10-P-1002-04A M6x1 Nm 9 13
CYLINDER HEAD

Number Designation Engine 176
BA01.30-P-1003-01N Bolt, heat shield/rear lifting eye to cylinder head M6 Nm 9
VACUUM PUMP

Number Designation Model 463 as of model year 2019 Model 463 up to model year 2019
BA43.05-P-1002-01B Bolt, vacuum pump to cylinder head Nm 10 10
VACUUM PUMP

Number Designation Model 463 up to model year 2019 Model 463 as of model year 2019
BA43.05-P-1007-01B Bolt, heat shield to vacuum pump Nm - 9
Fig 2: Identifying Record Plug (129 589 00 91 00)
G13658400Courtesy of MERCEDES-BENZ USA