I have a 2004 Eleganza. Recently it has been intermittently emitting a warning "bong" sound from the centre console, as per the ice warning, for no apparent reason. It is not accompanied by a warning message on the clock display. All the fluids are ok. The service warning comes on when the car is first started, but I don’t think that this is connected. It is quite annoying, and I would welcome any ideas or suggestions as to its cause. Thanks