See also:

Tire inflation pressure values over 100 mph/160 km/h
320i   328i 335i ...

Steering wheel heating
Steering wheel heating Switching on/off Press the button. ▷ On: the LED lights up. ▷ Off: the LED goes out. ...

Following part replacement
The same breaking in procedures should be observed if any of the components mentioned above have to be renewed in the course of the vehicle's operating life. ...