Bosch error 880: ABS software version error
Bosch BES2 & BES3Dealer neededRide with caution
The ABS unit's firmware does not match the drive unit or display. The ABS warning lamp stays on and ABS is switched off, but the brakes work as normal brakes and the motor keeps assisting. It appears after a component update or replacement.
Likely causes
- Drive unit or display updated but not the ABS unit
- Replacement ABS unit on different firmware
- Interrupted update
How to fix Bosch error 880
- Restart once
- Book a dealer software update with DiagnosticTool
Go to a dealer if: A dealer with DiagnosticTool is always needed to update the ABS unit's firmware.
Warranty: Normally fixed free after a dealer job; otherwise a small software charge.
Typical cost: Typically 30-60 EUR/USD.
Warranty: Normally fixed free after a dealer job; otherwise a small software charge.
Typical cost: Typically 30-60 EUR/USD.
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.
Frequently asked
Can I reset Bosch error 880 myself?
No. Only the dealer can update the ABS firmware.
Can I keep riding with error 880?
Usually, but with reduced or interrupted assistance and the risk of the system shutting down mid-ride. Ride home carefully or on muscle power alone; do not plan long rides until the cause is found.
Is error 880 covered by warranty?
Normally fixed free after a dealer job; otherwise a small software charge.
Related Bosch codes
Not an official Bosch document. Compiled from workshop experience and public service information; details can differ per system version and bike brand.