Q:
Recently, a client said that “Emergency call system not available” every time he start his 2018 BMW X4. How can he solve and clean it?
A:
Many owners discover that even professional diagnostic platforms, including devices like Launch X431 Pro Elite, can read the fault but cannot permanently clear it—because the issue usually isn’t just a simple DTC reset. The BMW telematics / SOS (TCB or ATM) module continuously runs self‑checks involving backup battery status, antenna integrity, network registration, coding consistency, and in some regions even eSIM provisioning. If any of these layers fail, the cluster message returns immediately after a basic clear. Therefore, the launch series of devices cannot currently handle issues like 2018 BMW X4 fault
If you have any other questions about the fault code on the car dashboard or other car models, please contact our official customer service in time
E-Mail: sales@X431shop.de
Business WhatsApp: +86 17782330462
Tel: 0086-17782330462