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.
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.
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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It was necessary to adapt the IHKA to enable activation of the electric A/C
compressor (EKK) in all
operating conditions. The electric A/C compressor control unit communicates with
the IHKA via the
SEE MORE:
Concept
Transmits technical data that is evaluated for the
ongoing development of BMW products from
the vehicle to BMW in regular intervals, if
needed.
General information
The Teleservice Report is free of charge and is
activated in vehicles that meet the following requirements:
Certain technical
Concept
Various connection types are available for using
mobile devices in the vehicle. The connection
type to select depends on the mobile device and
the desired function.
General information
The following overview shows possible functions
and the suitable connection types for them. The
scope of fu