34 00 Draining the Integral ABS brake system • Draw off the old brake fluid from the wheel-circuit reservoir and reinstall the cap. • Remove front brake pads. partial vacuum. If other devices are used, comply with their manu- facturers’ instructions. e Attention: Do not scrape the wheel – mask it off if necessary. • Remove front and rear seats. • Remove fuel tank. • Use resetting tool, BMW No. 34 1 531 , and locator, BMW No. 34 1 532 , to force the pistons in the left and right brake calipers all the way back and hold them in this position. • Wrap cloths around the left and right brake cali- pers.
• Connect the brake bleeding device to the bleed screw of the left brake caliper, but do not switch on the device. • Switch on the ignition. Drain both wheel circuits e Attention: Do not allow brake fluid to come into contact with painted parts of the motorcycle as brake fluid de- stroys paint. L Note: After switching on the ignition, always wait for the BMW Integral ABS to complete its self-diagnosis. Do not operate the brake lever until self-diagnosis has completed. Draining front wheel circuit e Attention: Integral brakes, the rear brake must be ready for use. • Gently pull the handbrake lever until the pump just starts up. • Open the bleed screw. • Drain the wheel circuit with the pump.
• Close the bleed screw. • Release the brake. • Disconnect the brake bleeding device from the bleed screw. • The procedure for draining the right brake caliper is the same as that for the left caliper. • Close the bleed screw. • Release the brake and switch off the ignition. • Disconnect the brake bleeding device from the bleed screw. 1 R28340110 • Open front wheel-circuit reservoir (1). e Attention: To prevent brake fluid entering plugs, do not discon- nect plugs from the ABS pressure modulator. 34.16 d Warning: All repair and maintenance work on the BMW Integral ABS must be performed by trained, qualified specialists.
Comply with all maintenance and repair instructions and always work through the various steps in the correct order. Use only new brake fluid from freshly opened con- tainers. 34 1 531 L Note: This description applies for the brake filling and bleeding unit with extraction of the brake fluid by 34 1 532 R28000180 R28000180