BMW 728 - 745i
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34 - Brakes
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34 31 104 - Stop light switch, adjusting
From model '83
ADJUSTING STOP LIGHT SWITCH
Adjust stop light switch nut (1) and lock
nut (2) that with the brake pedal in released
position the contact button will be visible by
distance (A) = 5 to 6 mm (0.197 to 0.236").