Carrying out bleeding operation - AR42.10-P-0010-02GG

MODEL 463 (except 463.270/271) up to model year 2013 without code 979 (Special protection version)

FRONT AXLE FIXED BRAKE CALIPER

Number	Designation		Model 460	Model 461, 463
BA42.10-P-1001-02B	Bleed screw at front axle fixed brake caliper	Nm	14	14

REAR AXLE FLOATING BRAKE CALIPER

Number	Designation		Model 461, 463 except model 463.270/271
BA42.10-P-1001-17B	Bleed screw at rear axle floating caliper	Nm	15

BRAKE CYLINDER

Number	Designation		Model 460, 461	Model 463
BA42.10-P-1001-08A	Bleed screw to rear axle wheel brake cylinder	Nm	14	14

Adjust bleeding pressure on filling and bleeding unit to 2, 0 bar.
Brake fluid changer with reservoir (10-20 l)
Remove cap from bleed screw on wheel brake (1), plug on bleed wrench and bleed hose and open the bleed screw.

Fig 1: Identifying Draining Brake Fluid With Reservoir
Courtesy of MERCEDES-BENZ USA
Allow approx. 80 cm ³ of brake fluid to escape until new brake fluid appears that is bubble-free.
Close bleed screw on wheel brake (1) , detach bleed hose and bleed wrench and fit cap back into place.
Repeat bleeding procedure on bleed screw of wheel brakes (2, 3, 4).
The consecutive numbering of the wheel brakes (1, 2, 3, 4) indicates the opening sequence.

The following bleed sequence must be adhered to on the fixed brake calipers for the wheel brakes (3, 4) on the front axle:
- Fixed brake caliper with 3 bleed screws:
  1. Inner bleed screw, bottom (A)
  2. Outer bleed screw, bottom (B)
  3. Outer bleed screw, top (C)
- Fixed brake caliper with 2 bleed screws:
  1. Inner bleed screw, top (D)
  2. Outer bleed screw, top (C)