3432951 Replacing rear left or right brake hose (between rear axle carrier and body)

Necessary preliminary tasks

Remove REAR LEFT WHEEL

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

Press clutch 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: Securing Clutch Pedal Down To Floor With Pedal Support

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IMPORTANT: Grip brake hose at square drive to prevent connecting piece from turning in retaining bracket.
Never twist brake hose (3) when installing it and avoid all contact with parts attached rigidly to the body.

Disconnect brake hose from brake line (1).

Detach brake hose from brake line (2) and remove brake hose (3).

Installation:

Tightening torque 34 32 1AZ .

Fig 2: Identifying Brake Hose And Brake Lines

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Installation:

Use torque wrench (Hazet 6282 - - 1CT with reversible ratchet head).

Tighten brake line using torque wrench (1) and special tool 34 3 170 socket wrench.

Fig 3: Tighten Brake Line Using Torque Wrench And Special Tool (34 3 170)

Courtesy of BMW OF NORTH AMERICA, INC.