New genuine OEM backup battery 3G0915089 for the emergency call system (eCall / SOS) in selected Volkswagen Group vehicles. It supplies backup power to the telematics unit if the main vehicle power supply is interrupted, for example after an accident.
For selected Volkswagen, Audi, Škoda, SEAT and CUPRA vehicles equipped with the corresponding eCall / telematics unit. Compatibility depends on the vehicle equipment and installed control unit. Please verify the part by VIN or compare the full part number on the original battery before ordering. Versions with a suffix, such as A or B, must not be assumed to be interchangeable.
A depleted backup battery can cause an SOS / emergency call warning. The same warning may have other causes, so diagnostics are recommended before replacement.
After installation, check the telematics unit with a suitable diagnostic tool, clear relevant fault codes and perform basic settings if required by the fitted unit. We recommend professional installation.