LEMON Manuals: Even more car manuals for everyone
Home >> Mercedes Benz >> 2009 >> SL550 >> Repair and Diagnosis >> Suspension >> Rear Suspension >> Suspension - 230 Chassis >> Testing & Repair >> Remove/install pressure supply valve unit - AR32.50-P-0003R

Remove/install pressure supply valve unit - AR32.50-P-0003R

MODEL 230.474 /475 /476 /479 

Fig 1: Identifying Pressure Supply Valve Unit Components
G05068199Courtesy of MERCEDES-BENZ USA
MODIFICATION NOTES

22.10.02 Safety note, included for the first time   AS00.00-Z-0005-01A
22.10.02 Notes on fitting hydraulic lines and hoses, included for the first time   AH32.50-P-0001-02A 
22.10.02 Unplug electrical connector at pressure sensor, included for the first time Step 3  
5.3.03 Value changed from 50 Nm to 45 Nm Figure in Column 1001, 1002, 1003, 1012 Lines 1 and 2, 1013 on Model 230 has been revised *BA32.50-P-1012-01A 
5.3.03 Specification changed from 10 Nm to 9 Nm Figure revised in row 1006, 1007, 1010, 1014 on model 230 *BA32.50-P-1014-01A 
5.3.03 Specification changed from 8 Nm to 9 Nm Value revised in row 1004, 1008, 1015, 1016, 1017 on model 230 *BA32.50-P-1016-01A 
REMOVINGINSTALLING Remove/install    
DANGER Risk of death  cased by vehicle slipping or toppling off of the lifting platform. Align vehicle between the columns of the hydraulic hoist and position the four support plates below the hoist support points specified by the vehicle manufacturer. AS00.00-Z-0010-01A
DANGER Risk of injury  to skin or eyes caused by hydraulic fluid spraying out under 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. AS00.00-Z-0013-01A
IMPORTANT Notes on active body control suspension Models 215, 220, 230 AH32.50-P-0001-01N 
1 Remove fender liner in left front fender Model 230.467 /474 /475 /476 /479 AR88.10-P-1300R
2 Remove pulsation damper (52a)   AR32.50-P-0013R 
3 Disconnect plug (2) from ABC pressure sensor (B4/5)    
4 Use a waterproof marker to identify the pressure lines for the tandem pump (52d), system supply (S) and return circuit (T), then disconnect the pressure supply valve body (52) IMPORTANTInstallation:  Ensure that tandem pump pressure line (52d), system supply pressure line (S) and return circuit pressure line (T) are reconnected in the correct locations.  
    TORQUE SPECIFICATION *BA32.50-P-1012-01A 
NOTES Notes on fitting hydraulic lines and hoses Models 215, 220, 230 AH32.50-P-0001-02A 
5 Detach pressure supply valve unit (52) from rubber buffers (1) INSPECT Rubber buffers (1) for damage and replace if required.  
    TORQUE SPECIFICATION *BA32.50-P-1016-01A 
6 Detach carrier plate from pressure supply valve unit (52) TORQUE SPECIFICATION *BA32.50-P-1014-01A 
7 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 when working in engine during starting procedure Secure vehicle to prevent it from moving.
Wear closed and snug-fitting work clothes.
Do not grasp hot or rotating parts.
AS00.00-Z-0005-01A
8 Fill and bleed ABC system   AR32.50-P-0021N 
ACTIVE BODY CONTROL SUSPENSION

Number Designation Model 230
BA32.50-P-1012-01A Union nut, line to pressure supply valve unit M14 Nm 45
M16 Nm 45
BA32.50-P-1014-01A Bolt, pressure supply valve unit to bracket   Nm 9
BA32.50-P-1016-01A Nut, carrier plate to rubber buffer   Nm 9