Brose Drive S/Drive T/Drive C/Drive S Mag — Error Code 10
Reviewed by certified eBike technicians · Last updated July 30, 2026
Quick Answer
10 on Brose = Motor position sensor error — rotor position signal lost or out of range
Severity: Stop — motor position sensor error · Do NOT continue riding
⚠️ STOP RIDING — This error indicates a critical safety issue. Continuing to ride may cause battery damage or safety hazard. Stop and diagnose before continuing.
Error 10 on your Brose indicates: Motor position sensor error — rotor position signal lost or out of range.
Stop — motor position sensor error — Motor position sensor error — rotor position signal lost or out of range
Symptoms
- Error 10 on Brose display; motor provides no assist; pedals feel heavy; motor may make grinding noise; walk mode non-functional
Common Causes
- Motor position sensor magnet damaged or displaced
- Sensor wiring disconnected or pinched near motor housing
- Water ingress into motor connector causing signal short
- Sensor PCB failure inside motor
- Corroded motor connector pins causing intermittent signal
Fix Steps
Step 1: 1. Power off bike and remove battery
Step 2: 2. Check motor connector near the bottom bracket — disconnect and inspect pins for corrosion
Step 3: 3. Clean connector with electrical contact cleaner and dry thoroughly
Step 4: 4. Check sensor wiring where it exits the motor housing for pinch marks
Step 5: 5. Reconnect firmly and test
Step 6: 6. If Error 10 persists: motor position sensor has likely failed — dealer diagnostic required
Step 7: 7. Brose motors require proprietary tools — cannot repair position sensor at home
Step 8: 8. Out-of-warranty motor replacement: ~$400-650 at Brose dealer
Related Error Codes
Error 20
Battery temperature warning — battery outside optimal 10-40°C range
Error 04Cadence sensor error — pedal cadence signal lost or reading outside expected range
Always disconnect the battery before inspecting wiring.