Front active seat ventilation
The seat cushion and backrest surfaces are cooled by means of integrated fans.
The ventilation rapidly cools the seat, e.g., if the vehicle interior is overheated or for continuous cooling at high temperatures.

Switching on
Press the button once for each
ventilation
level.
The highest level is active when three LEDs are lit.
After a short time, the system automatically moves down one level in order to prevent excessive cooling.
Switching off
Press the button longer.
The LEDs go out.
See also:
SPORT+
Sporty driving with optimized chassis and suspension
with limited driving stabilization.
Dynamic Traction Control is switched on.
The driver handles several of the stabilization
tasks.
Activati ...
Using voice activation
Activating the voice activation system
1. Press the button on the
steering
wheel.
2. Wait for the signal.
3. Say the command.
The command appears on the Control Display.
The symbol on the C ...
Under the Hood
The 528i has a 240-horsepower, 3.0-liter six-cylinder, while the 535i gets a
300-hp, turbocharged 3.0-liter six-cylinder. The 550i has a twin-turbo,
4.4-liter V-8 that makes 400 hp. All three use ...
