Problems with the seat heating
The seat heating has switched off prematurely or cannot be switched on. 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.
See also:
Important safety notes
For reasons of safety, Mercedes-Benz recommends that you drive with the lights
switched on even during the daytime. In some countries, operation of the headlamps
varies due to legal requirements a ...
Problems with the SmartKey
Problem
Possible causes/consequences and
Solutions
You cannot lock or unlock the vehicle using
the SmartKey.
The SmartKey battery is discharged or nearly discharged.
...
Drive sensibly – save fuel
Observe the following tips to save fuel:
The tires should always be inflated
to the recommended tire pressure.
Remove unnecessary loads.
Remove roof racks when they are not
needed.
Warm up ...