34 00 025 Replacing Fluid in ABS/ASC+T Brake System

WARNING: This page is about a different car, the 2010 BMW X5, 2009 BMW X5, 2008 BMW X5, and 2007 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Remove left microfilter housing cover. See 64 31 101 REMOVING AND INSTALLING/REPLACING LEFT MICROFILTER HOUSING COVER .
Read and comply with General Information. See General Information

IMPORTANT: When carrying out repairs to the brake system, follow the procedure set out in Bleeding brake system with DSC. See34 00 050 Bleeding Brake System with DSC

Connect brake fluid changer to expansion tank and switch on.

NOTE: Check relevant Operating Instructions for each device.
Charging pressure should not exceed 2 bar.

Fig 1: Connecting Brake Fluid Changer To Expansion Tank

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Flushing brake system completely

Connect bleeder hose with collecting tray to bleeder valve on rear right brake caliper.

Open bleeder valve and purge until clear, bubble-free brake fluid emerges.

Close bleed valve.

Follow same procedure on rear left, front right and front left wheel brake.

Fig 2: Connecting Bleeder Hose With Collecting Tray

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: The clutch slave cylinder must also be scavenged in vehicles with manual transmissions.

Switch off brake fluid changer and remove from expansion tank.

Check brake fluid level.

Close expansion tank.

NOTE: Pay attention to rubber seal (1) in sealing cap.

Fig 3: Identifying Rubber Seal

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