Checking the battery
Press the 
or
button.
The battery is working properly if battery
check lamp 1 lights up briefly
If battery check lamp 1 does not light up briefly during the test, the battery is discharged.
Changing the battery.
You can obtain the battery at a qualified
specialist workshop.
If the SmartKey battery is checked within
the signal reception range of the vehicle,
pressing the or
button locks or
unlocks the vehicle.
See also:
Tire pressure monitor warning
messages
If the tire pressure monitor detects a
significant pressure loss on one or more tires,
a warning message is shown in the
multifunction display. A warning tone also
sounds and the tire pressure ...
ETS/4ETS (Electronic Traction System)
WARNING
Observe "Important safety notes".
Traction control is part of ESP®.
Traction control brakes the drive wheels
individually if they spin. This enables you to
pull away and acc ...
Switching on/off
The three blue indicator lamps in the buttons
indicate the ventilation level you have
selected.
If the battery voltage is too low, the seat
ventilation may switch off.
•► Make sure tha ...