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34 32 980 Replacing rear left or right brake hose

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NOTE: Read and comply with GENERAL INFORMATION .
After completing repair work: BLEED BRAKING SYSTEM 

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.

Fig 1: Pressing Brake Pedal Down To Floor
G04754178Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: Grip brake hose at square head (2) so that connecting piece cannot rotate in retaining bracket.

Disconnect brake hose from brake line (1).

Installation note: 

Tightening torque 34 32 1AZ .

Fig 2: Identifying Brake Line And Square Head
G06889995Courtesy of BMW OF NORTH AMERICA, INC.

Detach brake hose (1) from brake caliper.

Installation note: 

First tighten brake hose on brake caliper.

Tightening torque 34 32 3AZ .

IMPORTANT: Never twist brake hose when installing it and avoid all contact with components attached rigidly to the body.
Fig 3: Identifying Brake Hose At Brake Caliper
G09915359Courtesy of BMW OF NORTH AMERICA, INC.