Problems with the steering wheel heating
If steering wheel heating indicator lamp 3 is flashing, the steering wheel heating has switched off automatically. The vehicle's electrical system voltage is too low because too many electrical consumers are switched on.
•► Switch off electrical consumers which you do not need, such as the rear window defroster or interior lighting.
Once the battery is sufficiently charged, the steering wheel heating will switch back on automatically.
See also:
Charging the battery
WARNING
Never charge a battery still installed in the vehicle unless
a battery charger unit approved by Mercedes-Benz is being used. Gases may escape
during charging and cause explosions tha ...
Setting the rear-compartment air
distribution using the rear control panel
Turn the SmartKey to position 2 in the
ignition lock.
Press rocker switch 13 or 16 up or down
repeatedly until the desired
air distribution symbol is shown in the
display. ...
General notes
If you use the mechanical key to unlock and
open the driver's door or the trunk lid, the
anti-theft alarm system will be triggered.
There are several ways to turn off the alarm:
To turn the a ...