jsuttle79

Good afternoon, I have a 2004 W211 E320CDI. whilst searching through how to change the SAT NAV screen to daylight running mode I came across after pressing the SERV button on the Head Unit, the unit had Bluetooth. Was quite surprised due to the cars age(Maybe the previous own upgraded the unit - Tried to contact Mercedes Ipswich to check if this was possible or had been done but they don't answer their phones so have given up). Anyways hit the Bluetooth button it found my phone within seconds it connects perfectly then sadly disconnects a few seconds after. Any ideas why. is the Bluetooth software on the unit to old to work with a modern phone?. Any advise would be super. Kind regards Jeremy