34 00 027 Replacing fluid in brake system

NOTE: Read and comply with GENERAL INFORMATION.
The capacities are oil change quantities. For this purpose, refer applicable BMW to the Parts Catalogue/Commercial Service Data (capacities)

Necessary preliminary work:

Remove the LEFT ENGINE COMPARTMENT COVER.

IMPORTANT: When carrying out repairs to the brake system, Follow the procedure set out in BLEEDING BRAKE SYSTEM WITH DSC.
Use only BMW-approved brake fluids, see BMW operating fluids. Refer to BRAKES - OPERATING FLUIDS

Connect bleeder unit to expansion tank (1) and switch on.

NOTE: Follow the applicable machine manufacturer's operating instructions.
Charging pressure should not exceed 2 bar.

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Completely bleed the brake system.

Connect vent hose (1) with collecting vessel to vent valve on rear right brake caliper.

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

Close vent valve.

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

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NOTE: Additionally flush the CLUTCH SLAVE CYLINDER in vehicles with manual gearbox.

Switch off bleeder unit and remove from expansion tank.

Check brake fluid level. If necessary, top up/draw off to "Maximum" level.

Close expansion tank.

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

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