34 00 xxx Removing and installing/replacing vent valve for brake caliper

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2017 BMW X3, 2016 BMW X3, 2015 BMW X3, 2014 BMW X3, and 2013 BMW X3. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary work:

Raise vehicle.

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.

Fig 1: Pressing Brake Pedal

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Remove dust cap (1).

Fig 2: Identifying Dust Cap

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Remove vent valve (1).

IMPORTANT: Collect escaping brake fluid in a suitable collecting vessel.

Fig 3: Identifying Vent Valve

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Installation:

IMPORTANT: The bore hole must be free of contamination!

Install vent valve (1).

Tightening torque: 34 00 1AZ

Fig 4: Identifying Vent Valve

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Mount dust cap (1).

Fig 5: Identifying Dust Cap

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Remove pedal support.

Fig 6: Pressing Brake Pedal Down To Floor

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Required follow-up work:

Bleed brake system.