BMW 325Ci EWS-DME sync issue with file transfer failure, possible wiring problem on BMW 325Ci

Some BMW 325Ci owners report experiencing EWS-DME synchronization issues, which may be accompanied by file transfer failures and potential wiring problems. These issues can sometimes be resolved by resetting the system, but owners are also advised to check the condition of key components like the EWS unit, key, ring antenna, fuse, and ground connections. If the problem relates to EWS-DME adaptation, a reset of the adaptation process may be necessary to ensure proper recognition between the components. Additionally, thorough inspection of wiring connections is crucial, as faults or damages could hinder data transfer between the EWS and DME units. Some owners find that updating the software on both units helps improve compatibility and communication. If these troubleshooting steps do not resolve the issues, seeking assistance from a qualified BMW mechanic or technician experienced with EWS-DME synchronization may be beneficial.