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Home >> Mercedes Benz >> 2006 >> SLK280 Standard >> Repair and Diagnosis >> Steering >> Power Steering >> Steering - 171 Chassis >> Testing & Repair >> Remove/install power steering pump - AR46.30-P-0500 >> Remove/install power steering pump - AR46.30-P-0500VT

Remove/install power steering pump - AR46.30-P-0500VT

MODEL 171.473 with ENGINE 113.989 

Fig 1: Identifying Power Steering Pump Components
G05027763Courtesy of MERCEDES-BENZ USA
REMOVINGINSTALLING Remove/install    
DANGER Risk of injury  to skin or eyes caused by hydraulic fluid spraying out under high pressure. Risk of poisoning  caused by swallowing hydraulic fluid Depressurize the hydraulic system completely before starting any work on the system. Wear protective clothing and safety glasses. -
1 Remove front engine cover    
2 Remove poly-V belt (130)   -
3 Remove left air intake hose    
4 Suction off oil from reservoir (30a) of power steering pump (30) NOTES Before opening the hydraulic system the area surrounding the separation point should be cleaned thoroughly. Even the smallest dirt particles, introduced into the hydraulic components, can lead to malfunctions and a total failure of the hydraulic system.  
    SPECIAL TOOL Hand pump Figure
5 Detach return line (30f) from reservoir (30a) of power steering pump IMPORTANT Seal connection.  
    TORQUE SPECIFICATION *BA46.30-P-1004-01D 
    SPECIAL TOOL Set of stop plugs Figure
6 Unscrew high pressure expansion hose (30i) from power steering pump (30). IMPORTANTInstallation:  Replace sealing rings.  
    TORQUE SPECIFICATION *BA46.30-P-1003-01D 
    SPECIAL TOOL Set of stop plugs Figure
7 Unscrew bolt on reservoir (30a) TORQUE SPECIFICATION *BA46.30-P-1001-01D 
8 Disconnect ground cable behind power steering pump (30) TORQUE SPECIFICATION *BA46.30-P-1001-01D 
9 Remove power steering pump (30) and move out forwards IMPORTANTInstallation:  Observe different bolt lengths of power steering pump.  
    TORQUE SPECIFICATION *BA46.30-P-1001-01D 
10 Pull out circlip (30c) with extraction hook and remove reservoir (30a) IMPORTANT The reservoir (30a) can also be removed when the power steering pump (30) is installed.
INSPECTInstallation:  Install new sealing ring (30b). Check circlip (30c) for correct assembly.
 
    SPECIAL TOOL Pulling hook Figure
11 Install in the reverse order    
12 Fill power steering pump and bleed   AR46.30-P-0010V 
POWER STEERING PUMP

Number Designation Model 171 with engine 113
BA46.30-P-1001-01D Bolt, power steering pump to control housing Nm 20
BA46.30-P-1003-01D Banjo bolt, high pressure expansion hose to power steering pump Nm 45
BA46.30-P-1004-01D Return line on power steering pump Nm 2
Fig 2: Identifying Set Of Stop Plugs (129 589 00 91 00)
G05027764Courtesy of MERCEDES-BENZ USA
Fig 3: Identifying Hand Pump (210 589 00 71 00)
G05027765Courtesy of MERCEDES-BENZ USA
Fig 4: Identifying Pulling Hook (140 589 02 33 00)
G05027766Courtesy of MERCEDES-BENZ USA