BMW X3 Service & Repair Manual: Front brake

FRONT BRAKE SPECIFICATION

IMPORTANT:

Installation of new brake pads is approved only provided that the brake disc thickness exceeds the specified dimension for "MIN TH" (see table).

Brake discs must be replaced when they reach the nominal thickness (see table) minus 2.4 mm!(Not applicable to perforated brake discs and M vehicles). Applies only to M vehicles and perforated ventilated brake discs: The brake discs must be replaced once they wear to the nominal specified thickness (see table) minus 1.6 mm!. Depending on:

  • Engine type
  • Transmission version
  • Equipment specification (e.g. maximum load increase, chassis official-use, national version, etc.)

different brake discs can be fittedThe brake discs must always be assigned by way of the relevant vehicle identification number and the Electronic Parts Catalogue! Â

Different thicknesses on brake linings Max. mm 0, 01
Nominal size (diameter x thickness) mm 328x28
(MIN TH) is stamped in brake disc chamber mm 26, 4
Wear warning from residual lining thickness mm 3, 7

REAR BRAKE

REAR BRAKE DISCS SPECIFICATION

IMPORTANT:

Installation of new brake pads is approved only provided that the brake disc thickness exceeds the specified dimension for "MIN TH" (see table).

Brake discs must be replaced when they reach the nominal thickness (see table) minus 2.4 mm!(Not applicable to perforated brake discs and M vehicles). Applies only to M vehicles and perforated ventilated brake discs: The brake discs must be replaced once they wear to the nominal specified thickness (see table) minus 1.6 mm!. Depending on:

  • Engine type
  • Transmission version
  • Equipment specification (e.g. maximum load increase, chassis official-use, national version, etc.)

different brake discs can be fittedThe brake discs must always be assigned by way of the relevant vehicle identification number and the Electronic Parts Catalogue! Â

Different thicknesses on brake linings Max. mm 0, 01
Nominal size (diameter x thickness) mm 330x20
(MIN TH) is stamped in brake disc chamber mm 18, 4
Wear warning from residual lining thickness mm 3, 7

SPECIFICATIONS FOR BRAKE PERFORMANCE TESTING AS PRESCRIBED IN GERMAN MOTOR VEHICLE SAFETY STANDARDS

BRAKE PERFORMANCE TESTING SPECIFICATION

Brakes

BRAKE LINES

TIGHTENING TORQUE SPECIFICATION - BRAKE LINES

Brakes

BRAKE SERVO

TIGHTENING TORQUE SPECIFICATION - BRAKE SERVO

Brakes

Brakes

FRONT BRAKE

TIGHTENING TORQUE SPECIFICATION - FRONT BRAKE

Brakes

Brakes

MASTER BRAKE CYLINDER

TIGHTENING TORQUE SPECIFICATION - MASTER BRAKE CYLINDER

Brakes

PARKING BRAKE

TIGHTENING TORQUE SPECIFICATION - PARKING BRAKE

Brakes

REAR BRAKE

TIGHTENING TORQUE SPECIFICATION - REAR BRAKE

Brakes

SLIP CONTROL SYSTEM (DSC)

TIGHTENING TORQUE SPECIFICATION - SLIP CONTROL SYSTEM (DSC)

Brakes

Brakes

TESTING AND BLEEDING BRAKES

TIGHTENING TORQUE SPECIFICATION - TESTING AND BLEEDING BRAKES

Brakes

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