34 00 025 Replacing Fluid In ABS/ASC+T Brake System
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Necessary Preliminary Tasks:
- Read and comply with General Information. Refer to 34 00 ... GENERAL INFORMATION .
- Remove air duct from microfilter on left. Refer to 64 31 031 REMOVING AND INSTALLING/REPLACING LEFT OR RIGHT MICROFILTER AIR DUCT (AUTOMATIC A/C HIGH) .
Observe safety instructions on raising the vehicle. Refer to 00..... LIFTING VEHICLE WITH A LIFTING PLATFORM .
IMPORTANT:
When carrying out repairs to the brake system, follow the procedure set out in 34 00 050 BLEEDING BRAKE SYSTEM WITH DSC .
Connect bleeder unit to expansion tank and switch on.
NOTE:
Check relevant operating instructions for each device. Charging pressure should not exceed 2 bar.
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.
Switch off bleeder unit and remove from expansion tank. Check brake fluid level.
Close expansion tank.
NOTE:
Pay attention to rubber seal (1) in sealing cap.