BOSCH BUI255 Intuvia Display Propel Electric Bikes Instruction Manual
- June 14, 2024
- Bosch
Table of Contents
Intuvia BUI255
BUI255 Intuvia Display Propel Electric Bikes
Original operating instructions
Safety instructions
Read all the safety information and instructions. Failure to observe the
safety information and follow instructions may result in electric shock, fire
and/or serious injury.
Save all safety warnings and instructions for future reference.
The term eBike battery is used in these instructions to mean all original
Bosch eBike rechargeable battery packs.
- Read and observe the safety warnings and directions contained in all the eBike system operating instructions and in the operating instructions of your eBike.
- Do not allow yourself to be distracted by the on-board computer’s display. If you do not focus exclusively on the traffic, you risk being involved in an accident. If you want to make entries in your on-board computer other than switching the assistance level, stop and enter the appropriate data.
- Do not use the on-board computer as a handle. Lifting the eBike up by the on-board computer can cause irreparable damage to the on-board computer.
- When using the walk assistance, make sure that you can control the eBike and that you can hold it securely at all times. Under certain circumstances, the walk assistance may stop (e.g. if the pedals hit an obstacle or if you accidentally let go of the button on the operating unit). The eBike may suddenly move backwards onto you or tip up. This presents a risk for the user particularly if there is additional load on the eBike. When using the walk assistance, do not bring the eBike into situations in which you cannot hold the eBike using your own strength.
Product description and specifications
Intended use
The Intuvia on-board computer is designed for controlling the eBike and to
display cycling data.
In addition to the functions shown here, changes to software relating to
troubleshooting and functional modifications may be introduced at any time.
Product features
The numbering of the components shown refers to the illustrations on the
graphics pages at the beginning of the manual.
All illustrations of bike parts except for the drive unit, onboard computer
(including operating unit), speed sensor and the corresponding holders are a
schematic representation and may differ on your eBike.
- Display function button i
- Bike light button
- On-board computer
- Holder for on-board computer
- On/off button for on-board computer
- RESET button
- USB port
- Protective cover for the USB port
- Operating unit
- Display function button i on the operating unit
- Decrease assistance level/scroll down button –
- Increase assistance level/scroll up button +
- Push assistance button WALK a)
- Locking mechanism for on-board computer
- Locking screw for on-board computer
USB charging cable (Micro A – Micro B) b)
a) Not available in all countries
b) Not depicted, available as an accessory
Display elements of on-board computer
(a) Drive unit assistance indicator
(b) Assistance level indicator
(c) Illumination indicator
(d) Text indicator
(e) Value indicator
(f) Speedometer
(g) Gear change recommendation: Higher gear
(h) Gear change recommendation: Lower gear
(i) Charge indicator of the eBike battery
Technical data
| On-board computer | Intuvia | |
|---|---|---|
| Product code | BUI255 | |
| Max. charging current of USB port | mA | 500 |
| USB port charging voltage | V | 5 |
| USB charging cable A) | 1 270 016 360 | |
| Operating temperature | °C | –5 to +40 |
| Storage temperature | °C | +10 to +40 |
| Charging temperature | °C | 0 to +40 |
| Internal lithium-ion battery | VmAh | 3.7 230 |
| Protection rating B) | IP55 | |
| Weight, approx. | kg | 0.15 |
A) Not included with the product as standard
B) When the USB cover is closed
**** The Bosch eBike systems use FreeRTOS (see
www.freertos.org).
Fitting
Inserting and Removing the eBike Battery
For inserting and removing the eBike battery in/from the eBike, please read
and observe the operating instructions for the eBike battery.
Fitting and removing the on-board computer (see figure A)
To fit the on-board computer (3), slide it forwards into the holder (4).
To remove the on-board computer (3), press the locking mechanism (14) and
slide the on-board computer forwards out of the holder (4).
Remove the on-board computer when you park the eBike.
The on-board computer can be secured in place to prevent it from being removed
from the holder. To do so, remove the holder (4) from the handlebars. Put the
on-board computer in the holder. Screw the locking screw (15) (M3 thread, 8 mm
long) from below into the thread provided in the holder. Mount the holder back
onto the handlebars. Please note: The locking screw is not designed to prevent
theft.
Operation
Prerequisites
The eBike can only be switched on when the following requirements are met:
– A sufficiently charged eBike battery is inserted (see operating instructions
for the eBike battery).
– The on-board computer is properly inserted in the holder (see “Fitting and
removing the on-board computer (see figure A)”, page English – 2).
– The speed sensor is connected properly (see operating instructions for the
drive unit).
Switching the eBike On and Off
The following options are available for switching on the eBike:
– If the on-board computer is already switched on when you insert it into the
holder, the eBike will be activated automatically.
– Once the on-board computer and the eBike battery are fitted, briefly press
the on/off button on the on-board computer.
– With the on-board computer inserted, push the on/off button on the eBike
battery (bicycle manufacturer-specific solutions are possible when there is no
access to the eBike battery on/off button; see the eBike battery operating
instructions).
The drive is activated as soon as you start pedalling (except if you are using
the walk assistance function or if the assistance level is set to OFF). The
drive power varies depending on the assistance level set.
As soon as you stop pedalling when in normal operation, or as soon as you have
reached a speed of 25/45 km/h, the drive switches off the assistance. The
drive is automatically reactivated as soon you start pedalling again and the
speed is below 25/45 km/h.
The following options are available for switching off the eBike:
– Press the on/off button of the on-board computer.
– Switch off the eBike battery using its on/off button (bicycle manufacturer-
specific solutions are possible when there is no access to the eBike battery
on/off button; see the bicycle manufacturer operating instructions).
– Remove the on-board computer from its holder.
If no power is drawn from the drive for about 10 minutes (e.g. because the
eBike is not moving) and no button is pressed on the on-board computer or the
operating unit of the eBike, the eBike will switch off automatically.
eShift (optional)
eShift is the integration of electronic gear-shifting systems into the eBike.
The eShift components are electrically connected to the drive unit by the
manufacturer. The separate operating instructions describe how to operate the
electronic gear-shifting systems.
Energy supply of the on-board computer
If the on-board computer is in the holder (4), a sufficiently charged eBike
battery is inserted into the eBike and the eBike system is switched on, then
the on-board computer battery is powered by the eBike battery.
If the on-board computer is removed from the holder (4), the energy is
supplied via an internal battery of the on-board computer. If the internal
battery of the on-board computer is weak when the on-board computer is
switched on,
The on-board computer will then turn off again.
To charge the internal battery of the on-board computer, put the on-board
computer back in the holder (4) (when an eBike battery is inserted in the
eBike). Switch the eBike battery on by its on/off button (see operating
instructions for the eBike battery).
You can also charge the on-board computer via the USB port. To do this, open
the protective cap (8). Connect the USB port (7) of the on-board computer via
a suitable USB cable to a standard USB charger or the USB port of a computer
(5 V charging voltage, max. 500 mA charging current).
Switching on/shutting down the on-board computer
To switch on the on-board computer, briefly press the on/ off button (5). The
on-board computer can also be switched on when it is not inserted in the
holder (if the internal battery of the on-board computer is sufficiently
charged).
To switch off the on-board computer, press the on/off button (5).
If the on-board computer is not inserted in the holder, it automatically
switches off after 1 minute to save energy if no button is pressed.
If you are not going to be using your eBike for several weeks, remove the on-
board computer from its holder. Store the on-board computer in a dry
environment at room temperature. Regularly recharge the onboard computer’s
internal battery (at least every three months).
Battery charge indicator of the eBike battery
The battery charge indicator of the eBike battery (i) displays the state of
charge of the eBike battery, not that of the onboard computer’s internal
battery. The eBike battery’s state of charge is also indicated by the LEDs on
the eBike battery itself.
In the indicator (i), each bar in the battery symbol represents approximately
20 % capacity:
The eBike battery is fully charged.
The eBike battery should be recharged.
The LEDs of the battery charge indicator on the eBike battery go out. The
capacity for assisting the drive has been used up, and assistance is gently
switched off. The remaining capacity is made available for the lighting and
the onboard computer. The indicator flashes. The capacity of the eBike battery
is enough for about two hours of lighting. This does not account for other
consumers (e.g. automatic gearbox, charging external devices at the USB port).
If the on-board computer is removed from the holder (4), the state of charge
that was last displayed for the eBike battery is saved. If an eBike is powered
by two eBike batteries, the battery charge indicator for the eBike battery (i)
will display the state of charge of both eBike batteries.
If an eBike has two eBike batteries inserted into it and both eBike batteries
are charged on the bike, the charging progress of both eBike batteries will be
indicated on the display (the left-hand eBike battery pack is being charged in
the illustration). You can also tell by the flashing indicator on the eBike
battery which of the two eBike batteries is being charged.
Setting the assistance level
On the operating unit (9), you can set how much the drive assists you while
pedalling. The assistance level can be changed at any time, even while
cycling.
Note: In some models, the assistance level may be preset and cannot be
changed. There may also be fewer assistance levels available than stated here.
The following assistance levels are available as a maximum:
– OFF: Drive assistance is switched off. The eBike can only be moved by
pedalling, as with a normal bicycle. The walk assistance cannot be activated
at this assistance level.
– ECO: Effective assistance with maximum efficiency, for maximum range
– TOUR/TOUR+:
TOUR: Steady assistance, long range for touring
TOUR+: Dynamic assistance for natural, sporty cycling (only in
conjunction with eMTB)
– SPORT/eMTB:
SPORT: Powerful assistance, for mountain biking and cycling in urban
traffic
eMTB: Optimum assistance whatever the terrain, rapid acceleration when
starting from a standstill, improved dynamics and top performance (eMTB only
available in combination with the drive units BDU250P CX, BDU365, BDU450 CX
and BDU480 CX. A software update may be required.)
– TURBO: Maximum assistance even at a high cadence, for sporty cycling
To increase the assistance level, press the + button (12) on the operating
unit repeatedly until the required assistance level appears on indicator (b).
To decrease the assistance level, press the – button (11).
The requested drive power appears on the display (a). The maximum drive power
depends on the selected assistance level.
When the on-board computer is removed from the holder (4), the assistance
level that was last displayed is saved; the drive power indicator (a) remains
empty.
Interaction between the Drive Unit and Gearshifting
The gear shifting should be used with an eBike in the same way as with a
normal bicycle (observe the operating instructions of your eBike on this
point).
Irrespective of the type of gear shifting, it is advisable that you briefly
reduce the pressure on the pedals when changing gear. This will aid gear
shifting and reduce wear on the powertrain. By selecting the correct gear, you
can increase your speed and range while applying the same amount of force.
For this reason, follow the gear change recommendations provided by the
indicators (g) and (h) on your display. If indicator (g) is displayed, you
should change to a higher gear with lower cadence. If indicator (h) is
displayed, you should select a lower gear with higher cadence.
Switching bike lights on/off
On the model in which the lighting is powered by the eBike system, the front
and rear lights can be switched on and off at the same time via the on-board
computer using the bike lights button (2).
Check that your bike lights are working correctly before every use.
When the lighting is switched on,
The on-board computer saves the light status and activates this saved status
accordingly after a restart.
Switching the bike lights on and off has no effect on the backlighting of the
display.
Switching the push assistance on/off
The walk assistance makes it easier to push your eBike. The speed in this
function depends on the selected gear and can reach a maximum of 6 km/h.
The push assistance function must only be used when pushing the eBike. There
is a risk of injury if the wheels of the eBike are not in contact with the
ground while using the push assistance.
To activate the walk assistance, briefly press the WALK button on your on-
board computer. Once it is activated, press the + button within 10 s and keep
it held down. The eBike drive is now switched on.
Note: The push assistance cannot be activated at assistance level OFF.
The walk assistance is switched off as soon as one of the following occurs:
– You release the + button (12),
– the wheels of the eBike are locked (e.g. by applying the brakes or hitting
an obstacle),
– the speed exceeds 6 km/h.
The push assistance function is subject to local regulations; the way it works
may therefore differ from the description above, or the function may even be
deactivated completely.
Powering external devices via the USB port
The USB port can be used to operate or charge most devices that can be powered
via USB (e.g. various mobile phones).
Charging requires the on-board computer to be mounted and a sufficiently
charged eBike battery to be inserted in the eBike.
Open the protective cap (8) for the USB port on the onboard computer. Use a
Micro A – Micro B USB charging cable (available from your Bosch eBike dealer)
to connect the USB port on the external device to the USB port (7) on the on-
board computer.
Once the electrical load has been disconnected, the USB port must be carefully
resealed with the protective cap (8).
USB connections are not waterproof. When cycling in the rain, do not
connect any external devices and make sure that the USB port is fully sealed
by the protective cover (8).
Important: If electrical loads are connected, this can affect the range
of the eBike.
Displays and configurations of the on-board computer
Speed and distance indicators
The speedometer (f) always displays the current speed.
You can choose from the following functions in the function display
(combination of text indicator (d) and value indicator (e)):
–
– <Max. speed>: Maximum speed achieved since the last reset
– <Avg. speed>: Average speed achieved since the last reset
–
–
–
–
To switch between display functions, press the i button (1) on the on-board
computer or the i button (10) on the operating unit repeatedly until the
required function is displayed.
To reset the
This will also reset the values of the other two functions. To reset the <Max.
speed>, switch to this function and then press the RESET button (6) until the
indicator is set to zero.
To reset the
If the on-board computer is removed from the holder (4), all values of the
functions are saved and can still be displayed.
Displaying/adjusting basic settings
The basic settings can be displayed and changed regardless of whether the on-
board computer is inserted in the holder (4) or not. Some settings can only be
viewed and changed when the HMI is inserted. Depending on the equipment of
your eBike, some menu items may not be present.
To go to the basic settings menu, simultaneously press the RESET button (6)
and the i button (1) until
To switch between the basic settings, press the i button (1) on the on-board
computer repeatedly until the required basic setting is displayed. If the on-
board computer is inserted in the holder (4), you can also press the i button
(10) on the operating unit.
To change the basic settings, press the on/off button (5) next to the –
indicator to reduce or scroll down, or the lighting button (2) next to the +
indicator to increase or scroll up.
If the on-board computer is inserted in the holder (4), it is also possible to
change the settings with the – (11) and + (12) buttons on the operating unit.
To exit the function and save a changed setting, press the RESET button (6)
for three seconds.
You can choose between the following basic settings:
– <– Clock +>: Setting the current time. The time can be changed faster by
pressing the setting buttons for a longer period.
– <– Wheel circum. +>: Changing the value pre-set by the manufacturer by ± 5
%. This menu item is displayed only when the on-board computer is in the
holder.
– <– English +>: Changing the language of the text indicator. You can choose
between German, English, French, Spanish, Italian, Portuguese, Swedish, Dutch
and Danish.
– <– Unit km/mi +>: Displaying the speed and distance in either kilometres or
miles.
– <– Time format +>: Displaying the time in 12-hour or 24-hour format.
– <– Shift recom. on +>/<– Shift recom. off +>: Switching the shift
recommendation display on or off.
–
– <Displ. vx.x.x.x>: Display software version.
–
– <DU SN xxxxxxx/xxx>: Drive unit serial number. This menu item is displayed
only when the on-board computer is in the holder.
–
– <Service MM/YYYY>: This menu item is displayed if the bicycle manufacturer
has set a fixed service date.
– <Serv. xx km/mi>: This menu item is displayed if the bicycle manufacturer
has set a service date after travelling a certain distance.
– <Bat. vx.x.x.x>: eBike battery software version. This menu item is displayed
only when the on-board computer is in the holder. When using two eBike
batteries, the software versions of both eBike batteries are displayed
successively.
– <Bat. PN xxxxxxxxxx>: eBike battery part number. This menu item is displayed
only when the on-board computer is in the holder and the eBike battery
provides a part number. When using two eBike batteries, the software versions
of both eBike batteries are displayed successively.
– <Cha. vx.x.x.x>: Software version of the charger used to charge the eBike
battery. This is displayed only if the charger provides the software version.
– If the eBike is equipped with ABS, the software version, serial number and
part number of the ABS are also displayed.
Error code indication
The eBike’s components are continuously and automatically monitored. If an
error is detected, the corresponding error code will appear on the text
indicator (d).
Press any button on the on-board computer (3) or on the operating unit (9) to
return to the standard indication.
The drive may be automatically shut down, depending on the type of error.
However, if you wish to continue cycling, you will always be able to do so
without assistance from the drive. Before undertaking any other journeys, the
eBike should be checked.
Have all repairs performed only by an authorised bike dealer.
| Code | Cause | Corrective measures |
|---|---|---|
| 410 | One or more buttons of the on-board computer are disabled. | Check whether |
any buttons are stuck, e.g. as a result of dirt finding its way in. Clean the
buttons if need be.
414| Operating unit connection problem| Have the connections checked
418| One or more buttons on the operating unit are disabled.| Check whether
any buttons are stuck, e.g. as a result of dirt finding its way in. Clean the
buttons if need be.
419| Configuration error| Restart the system. If the problem persists, contact
your Bosch eBike dealer.
422| Drive unit connection problem| Have the connections checked
423| eBike battery connection problem| Have the connections checked
424| Communication problem between components| Have the connections checked
426| Internal time-out error| Restart the system. If the problem persists,
contact your Bosch eBike dealer. With this error, it is not possible to bring
up the wheel circumference in the basic settings menu or to adjust it.
430| Internal battery of the on-board computer is flat (does not apply to
BUI350)| Charge the on-board computer (in the holder or via the USB port)
431| Software version error| Restart the system. If the problem persists,
contact your Bosch eBike dealer.
440| Internal drive unit fault| Restart the system. If the problem persists,
contact your Bosch eBike dealer.
450| Internal software error| Restart the system. If the problem persists,
contact your Bosch eBike dealer.
460| Error at USB port| Remove the cable from the USB port of the on-board
computer. If the problem persists, contact your Bosch eBike dealer.
490| Internal fault of the on-board computer| Have the on-board computer
checked
500| Internal drive unit fault| Restart the system. If the problem persists,
contact your Bosch eBike dealer.
502| Bike light fault| Check the light and the associated wiring. Restart the
system. If the problem persists, contact your Bosch eBike dealer.
503| Speed sensor fault| Restart the system. If the problem persists, contact
your Bosch eBike dealer.
504| Speed signal distortion detected.| Check that the spoke magnet is
positioned correctly, and adjust it if necessary. Check that nothing has been
tampered with (tuning). Drive assistance is reduced.
510| Internal sensor fault| Restart the system. If the problem persists,
contact your Bosch eBike dealer.
511| Internal drive unit fault| Restart the system. If the problem persists,
contact your Bosch eBike dealer.
530| Battery fault| Switch off the eBike, remove the eBike battery and
reinsert the eBike battery. Restart the system. If the problem persists,
contact your Bosch eBike dealer.
531| Configuration error| Restart the system. If the problem persists, contact
your Bosch eBike dealer.
540| Temperature error| The eBike is outside of the permissible temperature
range. Switch off the eBike system and allow the drive unit to either cool
down or heat up to the permissible temperature range. Restart the system. If
the problem persists, contact your Bosch eBike dealer.
550| An impermissible load has been detected.| Remove the load. Restart the
system. If the problem persists, contact your Bosch eBike dealer.
580| Software version error| Restart the system. If the problem persists,
contact your Bosch eBike dealer.
591| Authentication error| Switch off the eBike system. Remove the battery
pack and reinsert it. Restart the system. If the problem persists, contact
your Bosch eBike dealer.
592| Incompatible component| Use a compatible display. If the problem
persists, contact your Bosch eBike dealer.
593| Configuration error| Restart the system. If the problem persists, contact
your Bosch eBike dealer.
595, 596| Communication error| Check the wiring to the drive and restart the
system. If the problem persists, contact your Bosch eBike dealer.
602| Internal battery fault| Restart the system. If the problem persists,
contact your Bosch eBike dealer.
603| Internal battery fault| Restart the system. If the problem persists,
contact your Bosch eBike dealer.
605| Battery temperature error| The battery is outside of the permissible
temperature range.
Switch off the eBike system and allow the battery to either cool down or heat
up to the permissible temperature range. Restart the system. If the problem
persists, contact your Bosch eBike dealer.
606| External battery fault| Check the wiring. Restart the system. If the
problem persists, contact your Bosch eBike dealer.
610| Battery voltage error| Restart the system. If the problem persists,
contact your Bosch eBike dealer.
620| Charger fault| Replace the charger. Contact your Bosch eBike dealer.
640| Internal battery fault| Restart the system. If the problem persists,
contact your Bosch eBike dealer.
655| Multiple battery faults| Switch off the eBike system. Remove the battery
pack and reinsert it. Restart the system. If the problem persists, contact
your Bosch
eBike dealer.
656| Software version error| Contact your Bosch eBike dealer so that they can
perform a
software update.
7xx| Error relating to third-party components| Observe the information in the
operating instructions of the respective component manufacturer.
800| Internal ABS fault| Contact your Bosch eBike dealer.
810| Implausible signals from the wheel speed sensor| Contact your Bosch eBike
dealer.
820| Fault in the wire to the front wheel speed sensor| Contact your Bosch
eBike dealer.
821 to 826| Implausible signals from the front wheel speed sensor The sensor
disc may be missing, defective or fitted incorrectly; there is a significant
difference in diameter between the front wheel and the rear wheel; extreme
riding situation, e.g. riding solely on the rear wheel| Restart the system and
carry out a test ride lasting at least two minutes. The ABS indicator light
must go out. If the problem persists, contact your Bosch eBike dealer.
830| Fault in the wire to the rear wheel speed sensor| Contact your Bosch
eBike dealer.
831
833 to 835| Implausible signals from the rear wheel speed sensor The sensor
disc may be missing, defective or fitted incorrectly; there is a significant
difference in diameter between the front wheel and the rear wheel; extreme
riding situation, e.g. riding solely on the rear wheel| Restart the system and
carry out a test ride lasting at least two minutes. The ABS indicator light
must go out. If the problem persists, contact your Bosch eBike
dealer.
840| Internal ABS fault| Contact your Bosch eBike dealer.
850| Internal ABS fault| Contact your Bosch eBike dealer.
860, 861| Fault in the power supply| Restart the system. If the problem
persists, contact your Bosch eBike dealer.
870, 871 880
883 to 885| Communication error| Restart the system. If the problem persists,
contact your Bosch eBike dealer.
889| Internal ABS fault| Contact your Bosch eBike dealer.
890| ABS indicator light is defective or missing; ABS may not be working.|
Contact your Bosch eBike dealer.
No display| Internal fault of the on-board computer| Restart your eBike system
by switching it off and back on.
Maintenance and servicing
Maintenance and cleaning
Do not immerse any components, including the drive unit, in water or clean
them with pressurised water.
Clean your on-board computer using a soft cloth dampened only with water. Do
not use cleaning products of any kind.
Have your eBike checked by an expert at least once a year (including
mechanical parts, up-to-dateness of system software).
The bicycle manufacturer or dealer may also base the service date on the
distance travelled and/or a period of time. In this case, the on-board
computer displays a message telling you when the service date is due for 4
seconds each time it is switched on.
Please have your eBike serviced and repaired by an authorised bicycle dealer.
Have all repairs performed only by an authorised bike dealer.
After-sales service and advice on using products
If you have any questions about the eBike and its components, contact an
authorised bicycle dealer.
For contact details of authorised bike dealerships, please visit www.bosch-
ebike.com.
Transport
If you transport your eBike attached to the outside of your car, e.g. on a
bike rack, remove the on-board computer and the eBike battery to avoid
damaging them.
Disposal and substances in products
You can find information about substances in products at the following link:
www.bosch-ebike.com/en/material-compliance.
Do not dispose of eBikes and their components with household waste.
The drive unit, on-board computer incl. operating unit, eBike battery, speed
sensor, accessories and packaging should be disposed of in an environmentally
correct manner.
Check that your personal data has been deleted from the device.
Batteries that can be removed from the power tool without destruction must be
removed before disposal itself and sorted for separate battery collection.
In accordance with Directive 2012/19/EU and Directive 2006/66/EC respectively,
electronic devices that are no longer usable and defective/drained batteries
must be collected separately and recycled in an environmentally friendly
manner.
Electrical and electronic equipment are collected separately for pre-sorting
by type and helps to ensure that raw materials are treated and recovered
properly, thereby protecting people and the environment.
Please return Bosch eBike components that are no longer usable free of charge
to an authorised bicycle dealer or to a recycling facility.
Subject to change without notice.
1 270 020 XBI | (29.05.2023)
Bosch eBike Systems
References
- Material Compliance - Bosch eBike Systems
- FreeRTOS - Market leading RTOS (Real Time Operating System) for embedded systems with Internet of Things extensions
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