Bosch E-Bike Error Codes: A Complete Guide to Causes and Solutions
Bosch E-Bike Error Codes: A Complete Guide to Causes and Solutions
Bosch e-bike systems are a benchmark for reliability and performance. However, even the most advanced technology can sometimes malfunction. Understanding the error codes displayed on your e-bike's screen is key to quickly identifying the problem and, if possible, fixing it yourself.
In this article, we'll break down the main Bosch system error codes, their common causes, and practical solutions, offering a complete guide for your e-bike's maintenance.
Error Code 4xx: Battery-Related Issues
Error codes starting with "4" are typically linked to a problem with the battery or its communication with the system.
Error 410: Battery Not Connected
Common Cause: The battery is not properly seated in its mount or the contacts are dirty.
Solutions: Remove the battery, thoroughly clean the contacts on both the battery and the mount with a dry cloth, and reinsert it firmly until you hear a "click."
Error 430: Internal Battery Issue
Common Cause: This code indicates an internal battery problem, such as a fault with the Battery Management System (BMS).
Solutions: If the issue persists after removing and reinserting the battery, you need to contact an authorized service center.
Error 440: Charger Error
Common Cause: A non-original Bosch charger is being used, or there's a communication issue during charging.
Solutions: Ensure you are only using the original Bosch charger. Check that the charger's contacts are clean and undamaged.
Error Code 5xx: Motor-Related Issues
Error codes starting with "5" point to an anomaly in the motor or its connection.
Error 503: Speed Sensor Malfunction
Common Cause: The speed sensor or the magnet on the spoke is displaced, dirty, or damaged.
Solutions: Check that the magnet on the spoke is aligned with the sensor and that the distance between them is 5-17 mm. Clean the magnet and sensor of any dirt or debris.
Error 504: Torque Sensor Problem
Common Cause: The sensor that measures pedaling force is malfunctioning.
Solutions: This is a delicate motor component that requires a professional to fix.
Error 510: Initialization Error
Common Cause: The system fails to initialize the torque sensor. This often happens if you place your foot on the pedal when turning on the bike.
Solutions: Turn the e-bike off and on again without putting any pressure on the pedals.
Error 530: Motor Communication Failure
Common Cause: The cable connecting the motor to the display is loose or damaged.
Solutions: Check that all cables are securely connected and that there is no visible damage.
Error Code 6xx: Communication and Display Issues
Error codes starting with "6" are related to communication problems between the various components.
Error 601: Display Communication Error
Common Cause: The display is not properly connected or the contacts are dirty.
Solutions: Remove the display (if it's detachable), clean the contacts, and reinstall it. Check the connecting cable.
Error 603: Motor-Display Communication Problem
Common Cause: A break in the cabling between the motor and the display.
Solutions: Inspect the cable connecting the two components to ensure it's not damaged.
Error 605: Excessive Display Temperature
Common Cause: The display has overheated due to prolonged exposure to direct sunlight.
Solutions: Move the e-bike to the shade and wait for the display to cool down.
General Tips and Prevention
Regular Maintenance: Keep the battery and display contacts clean at all times. Use a dry cloth to remove dirt and moisture.
Visual Check: Before each ride, inspect the system's cabling for any damage, bends, or loose connections.
System Reboot: When an error occurs, the first step is always to turn the e-bike off and on again. This can resolve most temporary issues.
Original Charger: Always use the charger provided with your e-bike. Using non-original chargers can damage the battery and the system.
Disclaimer: If an error code persists or if the problem cannot be solved with these tips, it's crucial to contact an authorized Bosch service center. Attempting DIY repairs on delicate electronic components can void your warranty and cause further damage to the system.