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Home >> Mercedes Benz >> 2002 >> S500 >> Repair and Diagnosis >> Suspension >> Front Suspension >> Suspension - 215 & 220 Chassis >> Removal & Installation >> Eliminate line leakage at valve unit - SM32.50-P-0004A

Eliminate line leakage at valve unit - SM32.50-P-0004A

MODEL 215 

MODEL 220 with CODE (487a) Active body control (ABC) 

MODEL 230 with CODE (487a) Active body control (ABC) 

OPERATION NO. OF OPERATION TEXTS OR STANDARD TEXTS AND FLAT RATES

Range Op. no. Operation text Time Acc. no. Code
P 327490 Active Body Control (ABC)- check system for leaks Time prescribed by foreperson - -
MODIFICATION NOTES

5.3.03 Value changed from 50 Nm to 45 Nm Value in series 1001, 1002,1003, 1012 line 1 and 2, 1013 modified for model 230  
DANGER Risk of injury  to skin or eyes from hydraulic fluid spraying out under pressure. Risk of poisoning  from swallowing hydraulic fluid. Release the pressure in the hydraulic system completely before starting any work on the system. Wear protective clothing and safety glasses. AS00.00-Z-0013-01A
1 Loosen leaky line, center and tighten without tension to 50...55 Nm IMPORTANT Wait for pressure relief in ABS system. Pressure is relieved 10 minutes after engine is shut down so that the ABC high pressure line can be opened.
IMPORTANT It is only possible to ensure that the line connections are properly tightened when they are positioned tension-free with particular care (tighten nuts as far as possible without using tool) and then tighten to specified torque.
 
    TORQUE SPECIFICATION Union nut, line to pressure reservoir *BA32.50-P-1001-01A 
    TORQUE SPECIFICATION Union nut, line to front/rear axle valve unit *BA32.50-P-1002-01A 
    TORQUE SPECIFICATION Union nut, line to distributor *BA32.50-P-1003-01A 
    TORQUE SPECIFICATION Union nut, line to pressure supply valve unit *BA32.50-P-1012-01A 
2 Check system for leakage IMPORTANT For this purpose:
  • Clean leaky point.
  • Spray line/component with leak detection spray.
  • Connect STAR DIAGNOSIS.
  • Select menu item "Actuation" in the ABC system and allow the vehicle to run for at least 10 min in the "Rodeo" program (whereby the system heats up to reach operating temperature).
  • Perform visual check.

IMPORTANT If the system is still leaky:
↓
Remove/install/replace leaky lines.
Check system for leakage
IMPORTANT For this purpose:
  • Clean leaky point.
  • Spray line/component with leak detection spray.
  • Allow vehicle to run for at least 5 min in the "Rodeo" program.
  • Perform visual check.

IMPORTANT If the system is still leaky:
↓
Remove/install/replace the corresponding counterpiece for the line terminal (e. g. valve block, T-piece)
Check system for leakage
IMPORTANT For this purpose:
  • Clean leaky point.
  • Spray line/component with leak detection spray.
  • Allow vehicle to run in the "Rodeo" program for a further 5 minutes.
  • Perform visual check.
 
TORQUE SPECIFICATION ACTIVE BODY CONTROL SUSPENSION

Number Designation Model 215 Model 220 Model 230
BA32.50-P-1001-01A Union nut, line to pressure reservoir NM 50 50 45
BA32.50-P-1002-01A Union nut, line to front/rear axle valve unit NM 50 50 45
BA32.50-P-1003-01A Union nut, line to distributor NM 50 50 45
BA32.50-P-1012-01A Union nut, line to pressure supply valve unit M14 NM 50 50 45
M16 NM 50 50 45