Mercedes-Benz S-Class 2013 Owner's Manual page 356

Display messages
Front-passenger Front-passenger
seat cannot be seat cannot be
used. Visit work‐ used. Visit work‐
shop shop
&
inoperative Bat‐ inoperative Bat‐
tery low tery low
&
inoperative Refuel inoperative Refuel
vehicle vehicle
&
inoperative See inoperative See
Owner's Man. Owner's Man.
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Power steering Power steering mal‐ mal‐
function See Own‐ function See Own‐
er's Manual er's Manual
Possible causes/consequences and M M Solutions
The front-passenger seat head restraint is folded down and there
is a malfunction. The head restraint can no longer be folded up.
G WARNING
If head restraints are not adjusted correctly, they cannot provide
protection as intended.
There is an increased risk of injury in the head and neck area, e.g.
in the event of an accident or when braking.
Do not use the front-passenger seat.
X
Visit a qualified specialist workshop.
X
The on-board voltage is too low. The auxiliary heating has switched
itself off or cannot be switched on (
Drive for a considerable distance.
X
The battery charges. The auxiliary heating is operational again
as soon as the on-board electrical system voltage is sufficient.
There is too little fuel in the fuel tank. The auxiliary heating cannot
be switched on ( page 179).
Y
Refuel at the nearest filling station.
X
The auxiliary heating has a temporary malfunction or is faulty.
When the vehicle is on a level surface and the engine has cooled
X
down, make up to four attempts to switch on the auxiliary heat-
ing, waiting several minutes between each attempt
( page 179).
Y
If the auxiliary heating does not switch on, consult a qualified
X
specialist workshop.
The power steering assistance is faulty.
A warning tone also sounds.
G
WARNING
You will need to use more force to steer.
There is a risk of an accident.
Check whether you are able to apply the extra force required.
X
If you are able to steer safely: carefully drive on to a qualified
X
specialist workshop.
If you are unable to steer safely: do not drive on. Contact the
X
nearest qualified specialist workshop.
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page 179).
Y
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Z