Operation - Bosch BDU336Y Owner's Manual

Prerequisites
The eBike system can only be activated when the fol-
lowing requirements are met:
– A sufficiently charged battery is inserted (see bat-
tery operating instructions).
– The speed sensor is connected properly (see drive
unit operating instructions).
Control unit power supply
If a sufficiently charged eBike battery is inserted into
the eBike and the eBike system is switched on, then
the control unit battery is powered and charged by
the eBike battery.
If the state of charge of the internal battery is very
low, you can charge the internal battery via the diag-
nostics connection (7) with a USB Type C® cable us-
ing a power bank or another suitable power source
(charging voltage 5 V; charging current
max. 600 mA).
Always close the flap of the diagnostics connec-
tion (7) so that no dust or moisture can enter.
Switching the eBike system on/off
To switch on the eBike system, briefly press the on/
off button (1). After the start animation, the state of
charge of the battery is displayed in color with the
battery charge indicator (3) and the set assistance
level with the (5) display. The eBike is ready to ride.
The display brightness is controlled by the ambient
light sensor (12). Therefore, do not cover the ambi-
ent light sensor (12).
The drive is activated as soon as you start pedaling
(except at assistance level OFF). The motor output
depends on the settings of the assistance level.
As soon as you stop pedaling when in normal opera-
tion, or as soon as you have reached a speed of
20/28 mph, the eBike drive unit switches off the as-
sistance. The drive is automatically re-activated as
soon you start pedaling again and the speed is below
20/28 mph.
Bosch eBike Systems

Operation

To switch off the eBike system, press the on/off but-
ton (1) briefly (< 3 s). The battery charge indica-
tor (3) and the assistance level LED (5) go out.
If no power is drawn from the eBike drive for
about 10 minutes (e.g. because the eBike is not mov-
ing) and no button is pressed on the on-board com-
puter or the control unit of the eBike, the eBike sys-
tem will switch off automatically.
Battery charge indicator
The battery charge indicator (3) displays the eBike
battery's state of charge. The state of charge of the
eBike battery can also be checked on the LEDs of the
battery itself.
In the (3) display, each ice-blue bar represents 20 %
capacity and each white bar represents 10 % capac-
ity. The topmost bar shows the maximum capacity.
Example: Four ice-blue bars and one white bar are
displayed. The state of charge is between 81 % and
90 %.
If capacity is low, both of the lower displays change
color:
Bar
2 × orange
1 × orange
1 × red
1 × red flashing
If the eBike battery is being charged, the topmost bar
on the battery charge indicator (3) flashes.
Setting the assistance level
On the control unit using the (8) and(9) buttons, you
can set how much the eBike drive assists you while
pedaling. The assistance level can be changed at any
time, even while cycling, and is displayed in color.
Level Notes
Motor support is switched off. The eBike
OFF
can just be moved by pedaling, as with a
normal bicycle.
English – 9
Capacity
30 % to 21 %
20 % to 11 %
10 % to reserve
Reserve to empty
0 275 U07 3RL | (09.03.2022)