English – 3the wheel, moves past the speed sensor with a clearance ofat least 2 mm, yet no more than 8 mm.If any structural changes are made, the correct distancebetween the magnet and the sensor must be complied with(see figure A).Note: Make sure you do not damage the sensor or the sensorholder when fitting or removing the rear wheel.When changing a wheel, make sure that the sensor cable isrouted so that it is not under tension and has no kinks.The CenterLock magnet (5) can only be removed and rein-serted up to five times.OperationStart-upRequirementsThe eBike system can only be activated when the followingrequirements are met:– A sufficiently charged battery is inserted (see battery op-erating instructions).– The on-board computer is properly inserted in the holder(see on-board computer operating instructions).– The speed sensor is correctly connected (see "Checkingthe speed sensor (see figure A)", page English – 2).Switching the eBike system on/offThe following options are available for switching on theeBike system:– If the on-board computer is already switched on when youinsert it into the holder, the eBike system will be activatedautomatically.– Once the on-board computer and the eBike battery arefitted, briefly press the on/off button on the on-boardcomputer.– With the on-board computer inserted, push the on/offbutton on the eBike battery (bicycle manufacturer-spe-cific solutions are possible when there is no access to thebattery on/off button; see the battery operating instruc-tions).The drive is activated as soon as you start pedalling (exceptif you are using the push-assistance function, Switching thepush assistance on/off). The motor output depends on thesettings of the assistance level on the on-board computer.As soon as you stop pedalling when in normal operation, oras soon as you have reached a speed of 25 km/h, the eBikedrive switches off the assistance. The drive is automaticallyreactivated as soon you start pedalling again and the speedis below 25 km/h.The following options are available for switching off theeBike system:– Press the on/off button of the on-board computer.– Switch off the eBike battery using its on/off button (bi-cycle manufacturer-specific solutions are possible whenthere is no access to the battery on/off button; see the bi-cycle manufacturer operating instructions).– Remove the on-board computer from its holder.If the eBike is not moved for approx. 10 min and no button ispressed on the on-board computer, the eBike systemswitches off automatically in order to save energy.eShift (optional)eShift is the integration of electronic gear-shifting systemsinto the eBike system. The eShift components are electric-ally connected to the drive unit by the manufacturer. Theseparate operating instructions describe how to operate theelectronic gear-shifting systems.Setting the assistance levelYou can set the level at which the eBike drive assists youwhile pedalling on the on-board computer. The assistancelevel can be changed at any time, even while cycling.Note: In some models, the assistance level may be presetand cannot be changed. There may also be fewer assistancelevels available than stated here.The following assistance levels are available as a maximum:– OFF: Motor assistance is switched off. The eBike can onlybe moved by pedalling, as with a normal bicycle. The walkassistance cannot be activated at this assistance level.– ECO: Effective assistance with maximum efficiency, formaximum range– TOUR/TOUR+:TOUR: Steady assistance, long range for touringTOUR+: Dynamic assistance for natural, sporty cycling(only in conjunction with eMTB)– SPORT/eMTB:SPORT: Powerful assistance, for mountain biking andcycling in urban trafficeMTB: Optimum assistance whatever the terrain, rapidacceleration when starting from a standstill, improved dy-namics and top performance (eMTB only available incombination with the drive units BDU250P CX, BDU365,BDU450 CX and BDU480 CX. A software update may berequired.)– TURBO: Maximum assistance even at a high cadence, forsporty cyclingThe requested motor output appears on the display of theon-board computer. The maximum motor output depends onthe selected assistance level.Bosch eBike Systems 0 275 007 XD3 | (24.11.2021)