LEMON Manuals: Even more car manuals for everyone
Home >> BMW >> 2015 >> Z4 sDrive28i, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 375 (Brakes - Repair) >> 3411 Front Brakes >> 34 11 020 Removing and installing/replacing left or right front brake caliper >> Necessary preliminary tasks

Necessary preliminary tasks

WARNING: This page is about a different car, the 2013 BMW Z4, 2012 BMW Z4, 2011 BMW Z4, 2010 BMW Z4, and 2009 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.

After completing work: BLEED BRAKING 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: Locating Brake Tensioner
G04754178Courtesy of BMW OF NORTH AMERICA, INC.

Pull brake hose out of both holders (1).

IMPORTANT: Grip brake hose at square head (2) so that connecting piece cannot rotate in retaining bracket.

Disconnect brake hose from brake line (3).

Fig 2: Identifying Brake Caliper, Brake Line, Brake Hose Square Head And Holder
G04726660Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

Tightening torque 34 32 1AZ .

Detach brake hose from brake caliper (4).

Installation: 

Tightening torque 34 32 2AZ .

IMPORTANT: Never twist brake hose when installing it and avoid all contact with parts attached rigidly to the body.
NOTE: First tighten brake hose on brake caliper.
Move wheels into straight-ahead position.
Insert brake hose in bracket and screw onto brake pipe.

Unscrew guide bolts (1).

Remove brake caliper by pulling upwards.

Installation: 

Clean guide screws only; do not grease.

Check threads.

Replace all guide screws which are not in perfect condition.

Tightening torque 34 11 4AZ .

Fig 3: Pulling Brake Caliper
G04726582Courtesy of BMW OF NORTH AMERICA, INC.