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Home >> BMW >> 2018 >> M4 2D Convertible, Automatic DCT Trans >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Brakes - Repair -- M4 (F82 & F83) >> 34 11 Front Brakes >> Removing and installing/replacing left or right front brake caliper

Removing and installing/replacing left or right front brake caliper

Necessary preliminary work: 

Removal: 

Press brake pedal down to floor and secure with pedal support.

NOTE: The pedal support may only be released when the brake lines are reconnected.
This prevents brake fluid from emerging from the expansion tank and air from entering the system when the brake lines are opened.

Release screws (1), remove brake caliper (2) towards rear.

G04754178Courtesy of BMW OF NORTH AMERICA, INC.
G13692375Courtesy of BMW OF NORTH AMERICA, INC.

Pull out retaining clip (1) upwards.

Disconnect brake hose from brake line (2).

G10095882Courtesy of BMW OF NORTH AMERICA, INC.

Detach brake hose (2) from brake caliper (1).

G13692377Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

CAUTION: Make sure that the brake hose is routed correctly!

Position the brake caliper.

Replace screws (1).

Insert screws (1) and tighten.

Installation note: 

Tightening torque 34 11 2AZ .

G13803990Courtesy of BMW OF NORTH AMERICA, INC.

Mount brake hose (2) on brake caliper (1) and tighten.

Tightening torque 34 32 2AZ .

CAUTION: First tighten brake hose on brake caliper.
Move wheels into straight-ahead position.
Never twist brake hose when installing it and avoid all contact with parts attached rigidly to the body.
G13803991Courtesy of BMW OF NORTH AMERICA, INC.

Mount brake hose (3) on brake line (2) and tighten.

CAUTION: Grip brake hose at square head (3) so that connecting piece cannot rotate in retaining bracket.

Tightening torque 34 32 1AZ .

Fit retaining clip (1).

G10095882Courtesy of BMW OF NORTH AMERICA, INC.

Remove pedal support.

G04754178Courtesy of BMW OF NORTH AMERICA, INC.

Required follow-up work: