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Home >> Mercedes Benz >> 2021 >> CLS450 Base >> Repair and Diagnosis >> Brakes >> Traction Control >> Brakes - Hydraulic & Mechanical System - 257 Chassis 1 Of 2 >> Testing & Repair >> Carrying Out Bleeding Operation - AR42.10-P-0010-02FR

Carrying Out Bleeding Operation - AR42.10-P-0010-02FR

Model 206 

Model 223 

Model 232 

Model 257 

Model 290 

Model 295 

Model 297 

CAUTION Risk of poisoning  from swallowing Brake fluid. Risk of injury  from skin and eye contact with Brake fluid Only pour Brake fluid into suitable and appropriately marked containers. Wear protective clothing and eye protection when handling Brake fluid. AS42.50-Z-0001-01A 
Notice  Notes on handling, transport and storage of ceramic Brake disks   AH42.10-P-9406-13A 
Notice  Notes on handling, transport and storage of composite Brake disks   AH42.10-P-9406-12LF 
Notice  Notes on repairs to Brake system   AH42.00-P-0003-01A 
Notice  Brake fluid notes   AH42.50-P-0001-01A 
REFER TO SPECIAL TOOLS 000 588 01 82 00 Filling unit   WS25.00-P-0016B
FRONT AXLE BRAKE CALIPER

Number Designation Model 223.182 Model 223 (except 223.182) with code Z07
BA42.10-P-1002-10CA Bleed screw on Brake caliper Nm 18 18
FRONT AXLE BRAKE CALIPER

Number Designation Model 223 (except 223.182) except code Z07
BA42.10-P-1002-10CA Bleed screw on Brake caliper Nm 18
FRONT AXLE BRAKE CALIPER

Number Designation Model 295 Model 297
BA42.10-P-1002-10EA Bleed screw at Brake caliper Nm 18 18
FRONT AXLE BRAKE CALIPER

Number Designation Model 232
BA42.10-P-1002-10FA Bleed screw to Brake caliper Nm 14
REAR AXLE BRAKE CALIPER

Number Designation Model 206
BA42.10-P-1002-12V Bleed screw to Brake caliper Nm 11
REAR AXLE BRAKE CALIPER

Number Designation Model 257 Model 290
BA42.10-P-1002-12W Bleed screw to Brake caliper Nm 14 14
REAR AXLE BRAKE CALIPER

Number Designation Model 223 except code Z07 Model 223 with code Z07
BA42.10-P-1002-12Y Bleed screw to Brake caliper M10 Nm 11 11
REAR AXLE BRAKE CALIPER

Number Designation Model 295 Model 297
BA42.10-P-1002-12Y Bleed screw to Brake caliper M10 Nm 11 11
FRONT AXLE BRAKE CALIPER

Number Designation Model 290
BA42.10-P-1003-10BA Bleed screw at Brake caliper Nm 14
FRONT AXLE BRAKE CALIPER

Number Designation Model 206 with engine 139 with code M005 (Vehicles with 4MATIC/all-wheel drive) Model 206 with engine 139 except code M005 (Vehicles with 4MATIC/all-wheel drive)
BA42.10-P-1003-10DA Bleed screw Nm 18 18
FRONT AXLE BRAKE CALIPER

Number Designation Model 206 with engine 254, 654
BA42.10-P-1003-10DA Bleed screw Nm 18
FRONT AXLE BRAKE CALIPER

Number Designation Model 257 (except 257.361) Model 257.361
BA42.10-P-1003-10X Bleed screw at Brake caliper Nm 14 14
REAR AXLE BRAKE CALIPER

Number Designation Model 232
BA42.10-P-1006-12Z Bleed screw to Brake caliper Nm 14
G14548903Courtesy of MERCEDES-BENZ USA

Shown on model 257 

  1. Adjust Bleed pressure at filling unit to 2.0 bar.
  2. Remove caps for Bleed screws on Brake calipers (1, 2, 3, 4).

    IMPORTANT Model 206

    with code B06 (Silver Brake calipers)

    with code ME10 (Hybrid vehicle (plug-in, PHEV))

    Model 206

    with code B07 (AMG - ceramic Brake system)

    Model 206

    with code ME10 (Hybrid vehicle (plug-in, PHEV))

    with code U70 (red-painted Brake callipers)

    Model 232

    Model 290

    with code B07 (AMG - ceramic Brake system)

    Two Bleed screws are located on the front Brake calipers (3, 4).

  3. Connect Bleed hose of Bleed bottle (7) to Bleed screw of Brake caliper (1).
  4. Open Bleed screw.
    1. When Bleeding the hydraulic system of the brake

      system after the hydraulic system has been opened for repair purposes.

      Fully depress Brake pedal several times in succession until new Brake fluid exits free of bubbles at the Bleed screw.

      NOTES To Bleed the Brake system correctly it is absolutely essential to pump the Brake pedal throughout the entire Bleeding process.

      Otherwise, Brake system malfunctions and a failure of the Brake system may occur due to remaining residual air.

      NOTES Do not pump the Brake pedal in a jerking manner but instead release it slowly.

      Otherwise, air will be drawn in.

      IMPORTANT The Bleed screw can remain open throughout the entire pumping procedure. Total quantity of Brake fluid required: approx. 1.5 l.

    2. When replacing the Brake fluid, if the hydraulic system for the Brake system was not opened beforehand for repair purposes.

      Keep Bleed screw open until the Brake fluid flows out.

      IMPORTANT Pumping of the Brake pedal is not necessary. Required total quantity of Brake fluid: Approx. 0.75 l.

  5. Close Bleed screw. Model 232

    TORQUE SPECIFICATION Model 232

    TORQUE SPECIFICATION Model 295.

    Model 297 TORQUE SPECIFICATION

    Model 223 (except 223.182)

    except code Z07 (B7 armoring on special protection version)

    Model 223 (except 223.182)

    with code Z07 (B7 armoring on special protection version)

    Model 223.182

    TORQUE SPECIFICATION Model 223

    except code Z07 (B7 armoring on special protection version)

    Model 223

    with code Z07 (B7 armoring on special protection version)

    Model 295

    Model 297

    TORQUE SPECIFICATION Model 257

    TORQUE SPECIFICATION Model 290

    TORQUE SPECIFICATION Model 257

    Model 290

    IMPORTANT Model 206 with engine 139

    except code M005 (Vehicles with 4MATIC/all-wheel drive)

    Model 206 with engine 139

    with code M005 (Vehicles with 4MATIC/all-wheel drive)

    Model 206 with engine 254, 654

    TORQUE SPECIFICATION Model 206 TORQUE SPECIFICATION

  6. Disconnect Bleed hose of Bleed bottle (7) from Bleed screw (1) of Brake caliper.
  7. Repeat operation steps 3 to 7 successively on the Brake calipers (2, 3, 4).

    IMPORTANT Model 206

    with code B06 (Silver Brake calipers)

    with code ME10 (Hybrid vehicle (plug-in, PHEV))

    Model 206

    with code B07 (AMG - ceramic Brake system)

    Model 206

    with code ME10 (Hybrid vehicle (plug-in, PHEV))

    with code U70 (red-painted Brake callipers)

    Model 232

    Model 290

    with code B07 (AMG - ceramic Brake system)

    On the Brake calipers (3, 4), firstly open the vent screw that is located directly next to the Brake hose. Then open the outer vent screw.

  8. Fit caps for Bleed screws on Brake calipers (1, 2, 3, 4).