Repair and spare parts
If an eBike fitted with a Bosch eBike system develops a fault related to our eBike drive, we recommend consulting a professional 
bicycle retailer specialising in eBikes. The retailer will have all the right special tools such as a software diagnostics tool to identify the exact problem. Even experienced bicycle repair enthusiasts may be unable to repair the fault or may face a series risk if they compromise the safety of the overall system with an improper repair.
Can the Bosch eBike drive units be repaired?
Maintenance and minor repairs to the drive unit can be carried out by specialist dealers. This can include, for example, use of a drive unit repair kit, relubrication or the replacement or retrofitting of bearing protection rings. If a major fault is detected, the motor will be picked up from the dealer by Bosch. Whether a repair is possible is decided individually in each case. In some cases, we remanufacture the drive units during a service case. This means that the drives that qualify following appropriate testing are reconditioned and, after a final test, are made available to the customer again with full functionality. This is part of our sustainability strategy and contributes to the reuse of non-defective components.
Can Bosch eBike batteries be repaired?
For safety reasons, faulty, old or "worn out" batteries cannot be repaired or refreshed. Lithium-ion batteries are complex, finely tuned systems with a high energy content. Correct function and optimum interaction with the Battery Management System can no longer be guaranteed if a battery is repaired. In addition, when the battery is re-assembled, the housing seal can no longer be assured.
For safety reasons, batteries must pass extensive series tests in accordance with national and international legislation and normative requirements before they can be placed on the market. These series tests are not feasible for an individual repaired battery due to the number of test samples required. This includes, for example, leakage testing, as well as overcharging and short-circuit tests. If these tests are not performed, there is a high risk that, for example, moisture will penetrate the battery and, in the worst case, cause a short circuit and thus pose a hazard. All of this can have safety-related consequences. For safety reasons, Bosch therefore strongly advises against having the battery repaired.
Bosch eBike batteries must never be opened under any circumstances – not even if they are being repaired by third parties. Opening the battery means interfering with the delivered condition as approved by Bosch and entails safety-related risks. There is a risk that the Bosch eBike battery may catch fire due to a short circuit as a result of improper repair – caused, for example, by crushed or incorrectly routed cables, detached components or poor-quality electrical connections. These dangers also exist at a later point in time if an eBike battery, once opened, is used again.
Spare parts
Bosch eBike Systems aims, in principle, to provide spare parts availability for at least six years after the products were last delivered to the eBike manufacturer. In individual cases, however, we may not be able to meet this target if, for example, our suppliers are no longer able to provide individual components. If necessary, we will propose alternative components, e.g. upgrades.
