bike / e-bike

E-bike Error Code Troubleshooter

Enter your motor brand and error code for an instant diagnosis.

What does my e-bike error code mean? E-bike error codes are diagnostic messages from the motor system. Most common: Bosch 503 (speed sensor, fix: check magnet alignment), Shimano E010 (communication error, fix: check cable connections), Brose 510 (overtemperature, fix: let motor cool 15 minutes). In 40% of cases, a simple power cycle (off, wait 10 seconds, on) clears the error. Select your motor brand and enter the code below for a specific diagnosis.

This is the only interactive e-bike error code tool online. Instead of downloading a 40-page PDF manual, enter your error code and get an instant diagnosis with severity level, whether you can keep riding, and step-by-step fix instructions. Covers Bosch, Shimano STEPS, Brose, Yamaha and Giant.

Step 1

Select your motor brand

Step 2

Error code (from display)

Enter it exactly as shown on your display. Include letters and dashes.

This troubleshooter is for reference only. Error code meanings can vary by motor generation and firmware. Persistent or critical errors warrant a professional dealer diagnosis.

Universal First Steps for Any E-bike Error

Before looking up your specific code, try these three steps that fix 40% of all e-bike errors.

Power cycle: Turn off the system completely. Wait 10 seconds. Turn back on. (Fixes 40% of errors)
Reseat the battery: Remove the battery from the frame. Wait 30 seconds. Reinstall firmly until it clicks. (Fixes 15% of errors)
Check cable connections: Inspect the cable at the display, motor, battery, and speed sensor. Unplug and replug each one firmly. (Fixes 20% of errors)

If these three steps do not clear the error, look up your specific code below.

Bosch E-Bike Error Codes: Complete Reference

Code	Error	Severity	Can Ride?	Primary Fix
410	Communication Error	🟡 Medium	Yes, without motor assist	Power off, wait 10 seconds, power on (fixes 40% of cases)
414	Display Connection Error	🟡 Medium	Yes, without display info	Power cycle the system
418	Component Configuration Error	🟡 Medium	Limited assist may work	Power cycle the system
422	eBike Component Error	🟡 Medium	Yes, without assist	Power cycle the system
430	Internal Motor Error	🟠 High	No, do not ride with motor	Power off immediately
460	Charging Error	🟡 Medium	Yes (battery works, charging does not)	Try a different charger if available
500	Internal Speed Sensor Error	🟡 Medium	Yes, without assist	Power cycle the system
502	Light Sensor Error	🟢 Low	Yes, lights may not work	Check light cable connections
503	Speed Sensor Error	🟡 Medium	Yes, without motor assist	Power off, wait 10 seconds, power on (fixes 40%)
504	Speed Sensor Invalid Signal	🟡 Medium	Yes, without assist	Check that there is exactly ONE magnet on the wheel
510	Motor Overtemperature	🟡 Medium	Yes, after cooling (15 to 20 minutes)	Stop and let the motor cool for 15 to 20 minutes
530	Battery Overtemperature	🟡 Medium	After cooling	Let battery cool in shade for 20 to 30 minutes
602	Battery Needs Service	🟠 High	Limited, battery may cut out	Perform a full charge cycle (drain to 0%, charge to 100%)
640	Battery Authentication Error	🟠 High	No, motor will not engage	Remove battery, clean contacts, reinstall firmly

Bosch Error 410: Communication Error

Severity: Medium. Can I ride? Yes, without motor assist. What it means: Communication between display and motor unit interrupted. Most common cause: loose cable connection at the display or motor. Fix: Power off, wait 10 seconds, power on (fixes 40% of cases). Check display cable connection: unplug and firmly replug. Check motor cable connection at the motor housing. Inspect cable for visible damage (cuts, pinches, corrosion). If persistent after cable check: dealer diagnostic needed. Dealer needed: No (DIY fix). Estimated cost: Free (cable reseat) to 50 to 100 EUR / 55 to 115 USD (cable replacement).

Bosch Error 414: Display Connection Error

Severity: Medium. Can I ride? Yes, without display info. What it means: Display unit not communicating properly with the drive unit. Display may show partial information or go blank. Fix: Power cycle the system. Remove and reseat the display unit (twist off and back on). Check for moisture in the display mount contacts. Clean contacts with electrical contact cleaner. Try a different display unit if available. Dealer needed: No (DIY fix). Estimated cost: Free to 200 to 400 EUR / 220 to 460 USD (display replacement).

Bosch Error 418: Component Configuration Error

Severity: Medium. Can I ride? Limited assist may work. What it means: One or more system components are not recognized or configured incorrectly. Often occurs after a component swap or firmware update. Fix: Power cycle the system. Ensure all components are Bosch-compatible and from the same generation. Dealer needs to run diagnostic software to reconfigure components. Dealer needed: Yes. Estimated cost: 30 to 60 EUR / 35 to 70 USD (dealer diagnostic).

Bosch Error 422: eBike Component Error

Severity: Medium. Can I ride? Yes, without assist. What it means: Generic component error. Could be display, battery, or motor unit. System cannot identify which component is faulty. Fix: Power cycle the system. Remove battery, wait 30 seconds, reinstall. Check all cable connections. Dealer diagnostic to identify the failing component. Dealer needed: Yes. Estimated cost: 30 to 60 EUR / 35 to 70 USD (diagnostic) plus part cost.

Bosch Error 430: Internal Motor Error

Severity: High. Can I ride? No, do not ride with motor. What it means: Internal fault in the drive unit. Motor controller has detected an abnormal condition. This is a serious error that requires professional diagnosis. Fix: Power off immediately. Do NOT attempt to reset repeatedly (can cause further damage). Take to authorized Bosch dealer. Motor unit may need replacement (warranty if under 2 years / 25,000 km). Dealer needed: Yes. Estimated cost: 200 to 800 EUR / 220 to 910 USD (motor repair/replacement). Check warranty..

Bosch Error 460: Charging Error

Severity: Medium. Can I ride? Yes (battery works, charging does not). What it means: Battery charging circuit error. Battery may not charge or charges intermittently. Can ride with remaining charge. Fix: Try a different charger if available. Check charger port on battery for debris or corrosion. Try charging at room temperature (15 to 25°C). If battery is very cold or hot, let it reach room temp before charging. Dealer can run battery diagnostic. Dealer needed: No (DIY fix). Estimated cost: Free to 80 to 150 EUR / 90 to 170 USD (charger replacement).

Bosch Error 500: Internal Speed Sensor Error

Severity: Medium. Can I ride? Yes, without assist. What it means: Speed sensor internal to the motor unit has failed. Motor cuts assist as a safety measure because it cannot verify speed (EU law limits assist to 25 km/h). Fix: Power cycle the system. Check external speed sensor magnet on wheel spoke (if applicable). Dealer diagnostic for internal sensor. Dealer needed: Yes. Estimated cost: 50 to 150 EUR / 55 to 170 USD (sensor replacement).

Bosch Error 502: Light Sensor Error

Severity: Low. Can I ride? Yes, lights may not work. What it means: Error in the light circuit. Integrated lights may not function. Motor assist continues normally. Fix: Check light cable connections. Check bulb/LED (replace if blown). Power cycle. If using aftermarket lights, they may not be compatible. Dealer needed: No (DIY fix). Estimated cost: 10 to 50 EUR / 10 to 55 USD (bulb/cable).

Bosch Error 503: Speed Sensor Error

Severity: Medium. Can I ride? Yes, without motor assist. What it means: Speed sensor signal lost or inconsistent. Motor cuts out as a safety measure. This is the most common Bosch error code. Usually caused by a misaligned spoke magnet or loose sensor. Fix: Power off, wait 10 seconds, power on (fixes 40%). Check speed sensor magnet on wheel spoke: should be 5 to 8mm from sensor, aligned with sensor face. Ensure magnet is firmly attached to spoke (tighten or replace). Check sensor cable connection at the motor. Clean sensor face with dry cloth (mud, ice can block signal). If rear wheel was removed recently: magnet may have shifted. Dealer needed: No (DIY fix). Estimated cost: Free (magnet adjustment) to 30 to 60 EUR / 35 to 70 USD (sensor replacement).

Bosch Error 504: Speed Sensor Invalid Signal

Severity: Medium. Can I ride? Yes, without assist. What it means: Speed sensor sends a signal but the value is inconsistent or implausible. Possibly two magnets on the wheel, or magnet too far from sensor. Fix: Check that there is exactly ONE magnet on the wheel. Ensure magnet is correct Bosch type (not a generic magnet). Adjust gap to 5 to 8mm between magnet and sensor. Check for metallic debris near sensor that could generate false signals. Dealer needed: No (DIY fix). Estimated cost: Free (adjustment) to 20 to 40 EUR / 20 to 45 USD (magnet plus sensor).

Bosch Error 510: Motor Overtemperature

Severity: Medium. Can I ride? Yes, after cooling (15 to 20 minutes). What it means: Motor has overheated. Common on long, steep climbs in hot weather, especially in Turbo mode. Motor reduces or cuts power to protect itself. This is a protection feature, not a fault. Fix: Stop and let the motor cool for 15 to 20 minutes. Use lower assist modes (Eco, Tour) on long climbs. Avoid sustained Turbo mode on steep climbs in hot weather. Check that the motor housing is not blocked (mud, cover restricting airflow). If it occurs frequently on moderate terrain: dealer should check motor. Dealer needed: No (DIY fix). Estimated cost: Free (cooling plus riding behavior change).

Bosch Error 530: Battery Overtemperature

Severity: Medium. Can I ride? After cooling. What it means: Battery temperature too high. Usually from charging in a hot environment or sustained high-power riding. Battery management system reduces output to protect the cells. Fix: Let battery cool in shade for 20 to 30 minutes. Do not charge in direct sunlight or a hot car. If charging: unplug, let cool, charge at room temperature. Check that battery vents are not blocked. Dealer needed: No (DIY fix). Estimated cost: Free.

Bosch Error 602: Battery Needs Service

Severity: High. Can I ride? Limited, battery may cut out. What it means: Battery internal error. Cell balance may be off, or the BMS (battery management system) has detected a fault. Battery may work intermittently. Fix: Perform a full charge cycle (drain to 0%, charge to 100%). If error persists: dealer battery diagnostic needed. Battery may need cell rebalancing or replacement. Dealer needed: Yes. Estimated cost: 50 to 100 EUR / 55 to 115 USD (diagnostic) to 500 to 800 EUR / 570 to 910 USD (battery replacement).

Bosch Error 640: Battery Authentication Error

Severity: High. Can I ride? No, motor will not engage. What it means: System cannot authenticate the battery. Could be a non-Bosch battery, a battery from a different system generation, or a communication fault. Fix: Remove battery, clean contacts, reinstall firmly. Ensure battery is genuine Bosch and compatible with your system. Check for firmware compatibility (older battery on newer system). Dealer can run authentication diagnostic. Dealer needed: Yes. Estimated cost: 30 to 60 EUR / 35 to 70 USD (diagnostic). Battery replacement if incompatible: 500 to 800 EUR / 570 to 910 USD.

Shimano STEPS E-Bike Error Codes: Complete Reference

Code	Error	Severity	Can Ride?	Primary Fix
E010	Communication Error	🟡 Medium	Yes, without assist	Power off, wait 10 seconds, power on
E011	Motor Connection Error	🟡 Medium	Yes, without assist	Power cycle
E012	Battery Communication Error	🟡 Medium	Limited	Remove and reseat battery
E013	Torque Sensor Error	🟠 High	No, assist may be erratic	Power cycle
E014	Speed Sensor Error	🟡 Medium	Yes, without assist	Check spoke magnet alignment (5 to 8mm gap from sensor)
E020	Motor Overtemperature	🟡 Medium	After cooling 15 minutes	Stop and cool for 15 to 20 minutes
E021	Battery Overtemperature	🟡 Medium	After cooling	Let battery cool in shade 20 to 30 minutes
E030	Internal Motor Error	🔴 Critical	No	Power off immediately
E043	Shift Sensor Error	🟢 Low	Yes, shifting still works but motor does not cut during shift	Check shift sensor cable
W-001	Low Battery Warning	🟢 Low	Yes, battery is low	This is normal: charge battery soon
W-012	Motor Warm Warning	🟢 Low	Yes, motor reducing power	Reduce assist level temporarily

Shimano STEPS Error E010: Communication Error

Severity: Medium. Can I ride? Yes, without assist. What it means: Communication failure between motor and display or other components. Most common Shimano error. Fix: Power off, wait 10 seconds, power on. Check all cable connections (display, motor, battery, sensor). Inspect cables for damage or moisture. Reset system by removing battery for 60 seconds. If persistent: dealer needs to run E-TUBE diagnostic. Dealer needed: No (DIY fix). Estimated cost: Free to 50 to 100 EUR / 55 to 115 USD (cable).

Shimano STEPS Error E011: Motor Connection Error

Severity: Medium. Can I ride? Yes, without assist. What it means: Drive unit communication timeout. Motor is not responding to commands. Fix: Power cycle. Check motor cable connection. Ensure motor firmware is up to date (via E-TUBE app). Dealer diagnostic if persistent. Dealer needed: No (DIY fix). Estimated cost: Free to 50 EUR / 55 USD.

Shimano STEPS Error E012: Battery Communication Error

Severity: Medium. Can I ride? Limited. What it means: Battery not communicating with motor unit. Could be a connection issue or battery BMS fault. Fix: Remove and reseat battery. Clean battery contacts with dry cloth. Try a different battery if available. Check battery charge level (may be too low to communicate). Dealer needed: No (DIY fix). Estimated cost: Free to 500 plus EUR / 570 plus USD (battery).

Shimano STEPS Error E013: Torque Sensor Error

Severity: High. Can I ride? No, assist may be erratic. What it means: Torque sensor (measures pedaling force) is giving incorrect readings. Motor may provide too much or too little assist unpredictably. Fix: Power cycle. Do NOT ride if assist feels erratic (safety risk). Dealer must calibrate or replace torque sensor. Dealer needed: Yes. Estimated cost: 100 to 300 EUR / 110 to 340 USD (sensor replacement plus calibration).

Shimano STEPS Error E014: Speed Sensor Error

Severity: Medium. Can I ride? Yes, without assist. What it means: Speed sensor not detected. Motor cuts assist because it cannot verify speed limit compliance. Fix: Check spoke magnet alignment (5 to 8mm gap from sensor). Ensure magnet is securely attached to spoke. Check sensor cable connection. Clean sensor face. Dealer needed: No (DIY fix). Estimated cost: Free to 30 to 50 EUR / 35 to 55 USD (sensor).

Shimano STEPS Error E020: Motor Overtemperature

Severity: Medium. Can I ride? After cooling 15 minutes. What it means: Motor overheated from sustained high-power use. Fix: Stop and cool for 15 to 20 minutes. Use Eco or Normal mode on long climbs. Check motor housing for mud or debris blocking airflow. Dealer needed: No (DIY fix). Estimated cost: Free.

Shimano STEPS Error E021: Battery Overtemperature

Severity: Medium. Can I ride? After cooling. What it means: Battery cells overheated. Fix: Let battery cool in shade 20 to 30 minutes. Do not charge in a hot environment. Avoid sustained Boost mode in extreme heat. Dealer needed: No (DIY fix). Estimated cost: Free.

Shimano STEPS Error E030: Internal Motor Error

Severity: Critical. Can I ride? No. What it means: Serious internal motor fault. Motor controller has detected an unrecoverable error. Fix: Power off immediately. Take to Shimano authorized dealer. Motor unit may need replacement. Dealer needed: Yes. Estimated cost: 300 to 800 EUR / 330 to 910 USD (motor replacement). Check warranty..

Shimano STEPS Error E043: Shift Sensor Error

Severity: Low. Can I ride? Yes, shifting still works but motor does not cut during shift. What it means: Di2 shift sensor not communicating with motor. Motor normally cuts power briefly during shifts for smoother shifting. Without this signal, shifts may be rougher under power. Fix: Check shift sensor cable. Update firmware via E-TUBE app. Dealer can reconfigure Di2 integration. Dealer needed: No (DIY fix). Estimated cost: Free to 30 EUR / 35 USD (sensor).

Shimano STEPS Error W-001: Low Battery Warning

Severity: Low. Can I ride? Yes, battery is low. What it means: Battery charge is below 10%. Not an error, just a warning. Fix: This is normal: charge battery soon. Switch to Eco mode to extend remaining range. Dealer needed: No (DIY fix). Estimated cost: Free (charge battery).

Shimano STEPS Error W-012: Motor Warm Warning

Severity: Low. Can I ride? Yes, motor reducing power. What it means: Motor temperature is elevated but not critical. Motor is reducing power output to prevent overheating. This is a warning, not an error. Fix: Reduce assist level temporarily. Continue riding at lower power. If it escalates to E020, stop and cool. Dealer needed: No (DIY fix). Estimated cost: Free.

Brose E-Bike Error Codes: Complete Reference

Code	Error	Severity	Can Ride?	Primary Fix
1	General System Error	🟡 Medium	Try restart first	Power cycle (off 10 seconds, on)
3	Speed Sensor Error	🟡 Medium	Yes, without assist	Check spoke magnet alignment
5	Motor Overtemperature	🟡 Medium	After cooling	Cool for 15 to 20 minutes
9	Internal Motor Error	🔴 Critical	No	Power off, do not attempt repeated restarts

Brose Error 1: General System Error

Severity: Medium. Can I ride? Try restart first. What it means: Generic system error. Could be a communication, sensor, or motor issue. Fix: Power cycle (off 10 seconds, on). Remove and reseat battery. Check all cable connections. If persistent: dealer diagnostic. Dealer needed: No (DIY fix). Estimated cost: Free to varies.

Brose Error 3: Speed Sensor Error

Severity: Medium. Can I ride? Yes, without assist. What it means: Speed sensor signal lost. Fix: Check spoke magnet alignment. Clean sensor. Check cable connection. Dealer needed: No (DIY fix). Estimated cost: Free to 30 to 50 EUR / 35 to 55 USD.

Brose Error 5: Motor Overtemperature

Severity: Medium. Can I ride? After cooling. What it means: Motor overheated from sustained use. Fix: Cool for 15 to 20 minutes. Use lower assist level on climbs. Dealer needed: No (DIY fix). Estimated cost: Free.

Brose Error 9: Internal Motor Error

Severity: Critical. Can I ride? No. What it means: Serious internal fault in the Brose motor. Fix: Power off, do not attempt repeated restarts. Dealer service required. Dealer needed: Yes. Estimated cost: 200 to 600 EUR / 220 to 680 USD (motor service/replacement).

Yamaha E-Bike Error Codes: Complete Reference

Code	Error	Severity	Can Ride?	Primary Fix
01	Torque Sensor Error	🟠 High	No, assist may be erratic	Power cycle
02	Speed Sensor Error	🟡 Medium	Yes, without assist	Check spoke magnet position
06	Motor Overtemperature	🟡 Medium	After cooling	Cool 15 to 20 minutes
07	Battery Communication Error	🟡 Medium	Limited	Remove, reseat battery
09	Internal Motor Error	🔴 Critical	No	Dealer service required

Yamaha Error 01: Torque Sensor Error

Severity: High. Can I ride? No, assist may be erratic. What it means: Torque sensor malfunction. Motor may provide unpredictable assist levels. Fix: Power cycle. Do not ride if assist is erratic. Dealer must calibrate torque sensor. Dealer needed: Yes. Estimated cost: 100 to 250 EUR / 110 to 285 USD.

Yamaha Error 02: Speed Sensor Error

Severity: Medium. Can I ride? Yes, without assist. What it means: Speed sensor not detected. Fix: Check spoke magnet position. Clean sensor, check cable. Dealer needed: No (DIY fix). Estimated cost: Free to 30 to 50 EUR / 35 to 55 USD.

Yamaha Error 06: Motor Overtemperature

Severity: Medium. Can I ride? After cooling. What it means: Motor overheated. Fix: Cool 15 to 20 minutes. Reduce assist on climbs. Dealer needed: No (DIY fix). Estimated cost: Free.

Yamaha Error 07: Battery Communication Error

Severity: Medium. Can I ride? Limited. What it means: Battery not communicating with motor. Fix: Remove, reseat battery. Clean contacts. Try a different battery if available. Dealer needed: No (DIY fix). Estimated cost: Free to 50 EUR / 55 USD.

Yamaha Error 09: Internal Motor Error

Severity: Critical. Can I ride? No. What it means: Internal motor controller fault. Fix: Dealer service required. Dealer needed: Yes. Estimated cost: 200 to 600 EUR / 220 to 680 USD.

Giant / EnergyPak E-Bike Error Codes: Complete Reference

Code	Error	Severity	Can Ride?	Primary Fix
E1	Motor Communication Error	🟡 Medium	Yes, without assist	Power cycle
E3	Speed Sensor Error	🟡 Medium	Yes, without assist	Check spoke magnet
E5	Overtemperature	🟡 Medium	After cooling	Cool 15 to 20 minutes

Giant / EnergyPak Error E1: Motor Communication Error

Severity: Medium. Can I ride? Yes, without assist. What it means: Communication error between the RideControl display and the SyncDrive motor. Fix: Power cycle. Check cable connections. Update firmware via Giant RideControl app. Dealer needed: No (DIY fix). Estimated cost: Free to 50 EUR / 55 USD.

Giant / EnergyPak Error E3: Speed Sensor Error

Severity: Medium. Can I ride? Yes, without assist. What it means: Speed sensor signal lost. Fix: Check spoke magnet. Clean sensor. Dealer needed: No (DIY fix). Estimated cost: Free to 30 EUR / 35 USD.

Giant / EnergyPak Error E5: Overtemperature

Severity: Medium. Can I ride? After cooling. What it means: Motor or battery overheated. Fix: Cool 15 to 20 minutes. Use lower assist modes. Dealer needed: No (DIY fix). Estimated cost: Free.

Error Code Not Found? What to Do

If your code is not in our database, it may be a manufacturer-specific code from a newer firmware version. Check your bike manual, the manufacturer app (Bosch eBike Flow, Shimano E-TUBE, Giant RideControl), or contact your dealer with the exact code displayed. A power cycle (off 10 seconds, on) is always a safe first step.

When to Call a Dealer vs DIY Fix

Severity	Action	Examples
🟢 Low	DIY fix, ride normally	Light error, warnings, low battery
🟡 Medium	DIY fix, ride without assist	Speed sensor, communication, overtemp
🟠 High	Dealer soon, ride with caution	Torque sensor, battery service
🔴 Critical	Dealer immediately, do NOT ride	Internal motor error, authentication

Speed Sensor Errors: The Most Common Fix

Speed sensor errors (Bosch 503/504, Shimano E014, Yamaha 02) are the most common e-bike errors and the easiest to fix yourself. The spoke magnet must be 5 to 8mm from the sensor face, aligned squarely. If the magnet rotated on the spoke (common after wheel removal), the signal is lost. Check: spin the wheel slowly and watch if the magnet passes directly in front of the sensor. Adjust by rotating the magnet on the spoke. If the magnet fell off, replacement magnets cost 2 to 5 EUR / 2 to 6 USD.

Motor Overtemperature: Prevention Tips

Motor overheating (Bosch 510, Shimano E020, Yamaha 06) is not a fault. It is a protection feature. Prevent it by using lower assist modes on long climbs. Use Eco or Tour mode on climbs over 500m of vertical, avoid sustained Turbo on steep grades in hot weather, and keep the motor housing clean for airflow.

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Frequently asked questions

What does Bosch error code 503 mean?

Speed sensor error. The spoke magnet is misaligned or the sensor cable is loose. Fix: check magnet alignment (5 to 8mm from sensor), clean sensor, check cable. Power cycling (off 10 sec, on) fixes 40% of cases. You can ride without motor assist. No dealer needed. Cost: free.

Can I ride my e-bike with an error code?

It depends on severity. Green and yellow errors (speed sensor, communication, overtemp): yes, ride without motor assist. Orange errors (torque sensor, battery service): ride with caution to the dealer. Red errors (internal motor error): do NOT ride, the motor may behave unpredictably. When in doubt, ride without motor (it works as a normal heavy bike).

How do I reset my e-bike error code?

Power cycle: turn off the system, wait 10 seconds, turn on. If that does not clear it: remove the battery, wait 30 seconds, reinstall. If the error returns after reset, the underlying problem still exists and needs fixing (sensor adjustment, cable repair, or dealer service).

Why does my e-bike motor cut out while riding?

Three most common causes: (1) Speed sensor error (code 503/E014) due to magnet misalignment, fix: adjust the magnet. (2) Motor overtemperature (code 510/E020) from sustained climbing, fix: cool down 15 minutes. (3) Low battery, fix: charge. Check your display for an error code to identify the exact cause.

How much does e-bike motor repair cost?

Speed sensor fix: free to 30 to 60 EUR / 35 to 70 USD (DIY). Cable replacement: 50 to 100 EUR / 55 to 115 USD. Dealer diagnostic: 30 to 60 EUR / 35 to 70 USD. Motor repair: 200 to 800 EUR / 220 to 910 USD. Battery replacement: 500 to 800 EUR / 570 to 910 USD. Motor and battery are often covered by the manufacturer warranty (2 years / 25,000 km typical). Always check warranty before paying.

Last updated: May 2026. Based on Bosch, Shimano STEPS, Brose, Yamaha and Giant e-bike service documentation.