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Home >> Mercedes Benz >> 2021 >> S500 >> Repair and Diagnosis >> Suspension >> Suspension Control Systems >> Suspension -- 223 Chassis >> Testing & Repair >> Manually Release Pressure In Hydraulic System Of Electrohydraulic Suspension With Defective Shutoff Valve - AR32.50-P-0015-02S

Manually Release Pressure In Hydraulic System Of Electrohydraulic Suspension With Defective Shutoff Valve - AR32.50-P-0015-02S

Model 223 

with code 490 (Electrohydraulic suspension) 

WARNING Risk of injury  to skin or eyes from hydraulic fluid spraying out under pressure. Risk of poisoning  from swallowing hydraulic fluid. Depressurize hydraulic system completely before starting any work on it. Wear protective clothing and safety glasses. AS00.00-Z-0013-01A
Topical note  Information on E-ACTIVE BODY CONTROL suspension   AH32.50-P-0002-01ME 
  Notes on safety-relevant components   AH00.00-Z-0019-01A
REFER TO SPECIAL TOOLS 000 588 03 82 00 Filling unit   WS32.00-P-0032B 
  1. Connect return hose of filling unit to connection fitting (4) and release pressure in system.

    IMPORTANT If the shutoff valves (2, 3) are not closed, hydraulic pressure will escape from the suspension strut (1). It is not possible to fill the suspension strut (1).

    The suspension strut (1) must be replaced.

  2. Remove return hose of filling unit from connection fitting (4).
  3. Connect return hose of filling unit to connection fitting (5) and release pressure in system.
  4. Remove return hose of filling unit from connection fitting (5).
G16227802Courtesy of MERCEDES-BENZ USA