BMW 3: Vehicle Sound Generator (VSG)
In the G20 PHEV an acoustic protection for pedestrians is used as standard. To protect pedestrians a distinctive sound created specially for electric BMW models is generated during electric driving.
In comparison with the predecessor model, this is no longer a K CAN3 control unit with integrated loudspeaker. The VSG control unit has been integrated into the Receiver Audio Module (RAM), which is therefore also responsible for actuation of the VSG loudspeakers.
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G20 PHEV, Vehicle Sound Generator
- VSG front loudspeaker
- Receiver Audio Module (RAM)
- VSG rear loudspeaker
When stationary and when driving up to approximately 18 mph (30 km/h), the RAM generates artificial engine noise via the VSG loudspeakers which gradually becomes quieter as the speed increases. The engine noise is the same when driving forwards and reversing.
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System wiring diagram for Vehicle Sound Generator (US version)
- VSG front loudspeaker
- Fuse for rear right power distribution box
- VSG rear loudspeaker
- Receiver Audio Module (RAM)
Due to legal requirements, the VSG is installed in every vehicle that has a purely electric drive.
Deactivation of the function via the iDrive menu is no longer possible.
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