What are the reasons for no sound when BMW connects to Bluetooth?
2 Answers
There may be several reasons why there is no sound when a BMW connects to Bluetooth, such as the call volume on the phone not being turned on or the volume on the car navigation system not being enabled. The specific reasons and solutions are as follows: The call volume on the phone is not turned on: When using Bluetooth, phones with Bluetooth functionality are paired with the car's audio system to facilitate hands-free calls. If the call volume on the phone is not turned on, there will be no sound. Solution: Turn on the call volume. The volume on the car navigation system is not enabled: Car Bluetooth operates via FM frequency in conjunction with the car's audio system. If the volume on the car navigation system is not enabled, there will be no sound. Solution: Enable the navigation system's volume.
I've been driving a BMW for over a decade and have encountered the no-bluetooth-sound issue several times. It's mostly phone setting related - the phone volume might be turned down or in silent mode, resulting in no sound after Bluetooth connection. Sometimes BMW's iDrive system acts up too - the Bluetooth pairs successfully but there's no audio output, which can usually be fixed by restarting the center display. Device compatibility also matters - new phone updates might cause connection errors with old pairings, requiring deletion and re-pairing. If the car audio isn't working, check if the multimedia system switched to radio mode - try selecting media options via the control knob. BMW audio systems are more complex; regular software updates can prevent these minor issues. Otherwise, it could be hardware problems like a faulty amplifier - best to get it checked at an authorized dealership for safety.
