Checking and adjusting setting of rear brake light switch Adjusting brake light switch, rear Checking setting of brake light switch, rear 4 B 3 R22340030 R22340020 • Depress the footbrake lever and secure it in this position. • Slacken screw (4). • Switch on the ignition. 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. B • Depress the footbrake lever (brake light comes on and pump starts up). • Insert feeler gauge at right angles to direction of travel between the brake-light switch lever (3) and the stop on the footrest plate (arrow).
• Slowly release the footbrake lever and check the point at which the switch trips. Brake light switch must switch off Feeler gauge thickness: ........ 0.90 mm (0.0354 in) R22340020 • Turn the brake light switch until the switch trips at distance (B). • Hold the brake light switch and tighten the screw. • Recheck the setting. Brake light switch must remain on Feeler gauge thickness: ........ 1.60 mm (0.0629 in) • Switch off the ignition. Distance B: ......... 1 + 0.5 mm (0.0393 + 0.1968 in) (clearance at switching point between brake-light switch lever and footrest plate).
Removing and installing piston in brake-lever fitting a ....................................................See Group 32 34.13