E050
What code E050 means on a Bosch electric bike, what causes it, and which part to check first.
● SEVERITY: LOW
Bosch E050 means: Battery communication error. The documented cause is: Remove the battery, clean contacts, reinsert. Reset.
What E050 means
Battery communication error
The display shows E050 and the machine stops until the fault is cleared.
What the technical documentation says
Causes documented in the technical source published by bikedoctor.dk
| DOCUMENTED CAUSE OR CHECK |
|---|
| Remove the battery, clean contacts, reinsert |
Replacement parts
Tools you'll need
Worth repairing, or worth replacing?
The battery: how long it lasts, when to replace it, what it costs
Before you open anything
Switch the system off and remove the battery before opening any connector. A traction battery stores enough energy to melt a tool and start a fire, and a damaged cell can ignite hours later. Never charge a swollen, dented or wet battery, and never leave one charging unattended.
What to check, in order
From the quickest check to the one that needs a technician.
Find a specialist
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Frequently asked questions
What does E050 mean on a Bosch?
Battery communication error The documented cause is: Remove the battery, clean contacts, reinsert. Reset.
Can I fix E050 myself?
It depends on the part involved: Remove the battery, clean contacts, reinsert. Reset. Clearing a filter or straightening a hose is within reach of anyone; anything behind a panel means mains electricity and water together — that is a job for a technician.
Can I keep riding with this code showing?
Yes: we document 18 other codes for Bosch on this electric bikes. They are listed at the bottom of this page, each with its own meaning.
Does the same code mean the same thing on other brands?
Often not. The same two characters can point to completely different faults depending on the manufacturer — always check the page for your own brand.