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Bleeding pressure from Active Body Control (ABC) hydraulic system - AR32.50-P-0001-01N

MODEL 221 except CODE (Z07) Top protection MODEL 230 with 

MODEL 220 with CODE (487) Active Body Control (ABC) except CODE (979) Special protection version except CODE (Z04) Light armoring except CODE (Z07) Top protection 

MODEL 215, 216 

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. AS00.00-Z-0013-01A
ACTIVE BODY CONTROL, LINES

Number Designation Model 215 Model 216 Model 220
BA32.50-P-1001-02B Bleed screw on soldered fitting in hydraulic line M10x1 Nm 20 20 20
ACTIVE BODY CONTROL, LINES

Number Designation Model 221 Model 230
BA32.50-P-1001-02B Bleed screw on soldered fitting in hydraulic line M10x1 Nm 20 20

Shown on model 215 

Fig 1: Identifying Tandem Pump, Bleed Screw (Left/Right Front), ABC Front And Rear Axle Valve Unit
G07587646Courtesy of MERCEDES-BENZ USA

NOTES The engine must be switched off for at least 10 minutes. Open bleed screws carefully so that the hydraulic fluid can drain out slowly to prevent the body from dropping too rapidly.

The pressure can be relieved separately for the front axle (respective bleed screws), rear axle (respective bleed screws) or for the respective suspension strut (respective bleed screw).

IMPORTANT Collect hydraulic fluid which runs out in a suitable container and dispose of it.

  1. Use the circuit's bleed screw to drain the hydraulic fluid.