BMW X3 Service & Repair Manual: Removing and installing or replacing both rear brake discs

BMW X3 Service & Repair Manual / Brakes / Rear brakes / Removing and installing or replacing both rear brake discs

Special tools required:

  • 34 1 280

Necessary preliminary tasks:

  • Remove WHEELS .
  • Remove and clean BRAKE PADS.

After completing repair work:

  • Adjust parking brake (not F10, F11, F12, F13, F18, F25).
  • Read and comply with notes on breaking in new brake discs/brake pads.

Check minimum brake disc thickness:

  • Position special tool 34 1 280 at three measuring points in area (1) and measure.
  • Compare measuring result and lowest value with SETPOINT VALUE .

NOTE: If the brake discs are replaced, you must also fit new brake pads.

Always replace brake discs in pairs.

Brakes

IMPORTANT: New brake pads may only be fitted if the brake disc thickness is greater than the MINIMUM BRAKE DISC THICKNESS (MIN TH).

Release screws (1). Detach brake-caliper support.

Brakes

IMPORTANT: To release brake disc: Do not under any circumstances strike friction ring with a hammer or similar! If necessary, carefully tap on base of brake disc chamber with a rubber mallet.

Clean contact surface of brake disc at wheel hub thoroughly and remove traces of corrosion.

Unevenness on contact surface may result in distortion of brake disc!

Release screw (1) and remove brake disc (2).

Installation note: Replace screw.

Brakes

    Precision-turning both rear brake discs on both sides
    IMPORTANT: Always precision-turn both sides of both brake discs on one axle. Maximum machining dimension per friction ring side is 0.8 mm! ...

    Removing and installing or replacing brake pads on both rear disc brakes (trw floating caliper)
    Special tools required: 34 1 280 2 320 871 2 320 299 IMPORTANT: Brake pad wear sensor: after removal it must be replaced (brak ...

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