See also:

Switching on/off
The three red indicator lamps in the button indicate the heating level you have selected. If the battery voltage is too low, the seat heating may switch off. Driver's and front-passenger seat ...

Using the SmartKey
– Turn the SmartKey to position 0 in the ignition lock and remove it. The immobilizer is activated. If you turn off the engine with the SmartKey and then remove it from the ignition lock ...

Additives
Do not use any additives in the engine oil. This could damage the engine. ...