BMW F12 2011 Technical Training Manual page 35

F12￿Chassis￿Dynamics
4.￿Brakes
The￿parking￿brake￿can￿be￿released￿by￿unscrewing￿the￿EMF￿actuators￿and￿manually￿screwing￿back￿the
spindle.
Replacing￿brake￿pads
To￿replace￿the￿brake￿pads￿the￿EMF￿actuator￿must￿be￿in￿the￿fully￿released￿position￿so￿that￿the￿brake
piston￿can￿be￿pressed￿back.￿The￿EMF￿actuators￿can￿be￿operated￿by￿means￿of￿the￿BMW￿diagnosis￿sys-
tem￿and￿moved￿to￿the￿fully￿released￿position.￿That￿position￿is￿required￿in￿order￿to￿be￿able￿to￿replace￿the
brake￿pads.￿Once￿the￿installation￿position￿is￿reached,￿installation￿mode￿is￿automatically￿activated.
F12￿Electromechanical￿Parking￿Brake￿EMF,￿showing￿spindle￿nut￿in￿working￿position￿for￿brake￿pad￿replacement
The￿parking￿brake￿cannot￿be￿applied￿while￿the￿EMF￿control￿unit￿is￿in￿installation￿mode￿for￿safety￿rea-
sons.￿If￿the￿parking￿brake￿button￿is￿operated￿with￿the￿EMF￿control￿unit￿in￿this￿mode,￿the￿EMF￿indicator
lamp￿on￿the￿instrument￿panel￿(KOMBI)￿flashes￿yellow.
Installation￿mode￿can￿be￿cancelled￿in￿two￿ways:
• By￿executing￿the￿service￿function￿"Reset￿installation￿mode"￿with￿the￿aid￿of￿ISTA
• By￿driving￿the￿vehicle￿and￿exceeding￿a￿programmed￿minimum￿speed.
The￿precise￿procedure￿for￿bedding-in￿the￿service￿brakes￿is￿described￿in￿the￿repair￿instructions.￿The￿in-
structions￿here￿must￿be￿precisely￿followed.
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