Bosch Kiox (BES2): enable and use walk assist
Walk assist pushes the bike at up to 6 km/h while you walk beside it. Built in; you use the WALK button and + on the control unit.
Step by step
- Switch the Kiox on and select any mode except OFF.
- Press the WALK button on the control unit once (on most units the small button underneath). 'Walk assist' appears on the Kiox.
- Within a few seconds press and hold +; the motor pushes as long as you hold it.
- Release + to stop; press WALK again if it timed out.
- Walk assist ends when you press −, the wheel blocks or speed exceeds 6 km/h.
Tip: Higher mode = stronger push; select TURBO for a loaded bike on a ramp.
Can't find it?
If nothing happens: mode is OFF, WALK timed out, or the manufacturer disabled walk assist for your market in DiagnosticTool.
Frequently asked
How fast is walk assist?
Up to 6 km/h, slower uphill.
Does it work without the display mounted?
No, the Kiox must be on the bike and switched on.
Can I use it as a throttle?
No; it cuts out above 6 km/h.
Manuals and video
- Bosch eBike Help Center: official error-code index
- Bosch eBike downloads: quick start guides and battery guide
- Bosch eBike dealer search (DiagnosticTool readout)
Videos found on YouTube and checked automatically; they are other people's work, not ours.
- Bosch Kiox 300: How to activate the pushing aid Riese & Müller
Other Bosch Kiox (BES2) guides
Bosch Kiox (BES2): change the display languageBosch Kiox (BES2): switch from mph to km/h (or km/h to mph)Bosch Kiox (BES2): set the time and time formatBosch Kiox (BES2): reset the trip and set automatic trip resetBosch Kiox (BES2): wheel circumference (dealer-set, small correction possible)Bosch Kiox (BES2): change assist modes and what can be customisedBosch Kiox (BES2): activate and use eBike LockBosch Kiox (BES2): set the display brightnessBosch Kiox (BES2): pair with the eBike Connect app via BluetoothBosch Kiox (BES2): update the firmware (display via app, drive unit via dealer)Bosch Kiox (BES2): turn the lights on and off, always-on lights
Still stuck? Take a photo of the display and show it to a local e-bike workshop. Bring the bike's system name (e.g. Bosch Performance Line CX) and the exact code; that saves diagnostic time and money.