2014 MERCEDES-BENZ S-Class warning

Warning/
indicator
lamp 0051 0051
Signal type
Possible causes/consequences and 0050
0050Solutions 00AC
0051
The red coolant warning lamp lights up while the engine is running and the
coolant temperature gauge is at the start of the bar display.
The temperature sensor for the coolant temperature gauge is defective.
The coolant temperature is no longer being monitored. There is a risk of engine
damage if the coolant temperature is too high.
X Pull over and stop the vehicle safely and switch off the engine, paying
attention to road and traffic conditions. Do not continue driving under any
circumstances.
X Secure the vehicle against rolling away (Y page 190).
X Consult a qualified specialist workshop. Warning and indicator lamps in the instrument cluster
309On-board computer and displays Z

Warning/
indicator
lamp 0051
0051 Signal type
Possible causes/consequences and 0050
0050 Solutions 00AC
0051
The red coolant warning lamp comes on while the engine is running.
The coolant level is too low.
If the coolant level is correct, the airflow to the engine radiator may be blocked
or the electric engine radiator fan may be malfunctioning.
The coolant is too hot and the engine is no longer being cooled sufficiently.
X Observe the additional display messages in the multifunction display.
X Pull over and stop the vehicle safely and switch off the engine, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 190).
X Leave the vehicle and keep a safe distance from the vehicle until the engine
has cooled down.
X Check the coolant level and add coolant, observing the warning notes
(Y page 351).
X If you need to add coolant more often than usual, have the engine coolant
system checked.
X Make sure that the air supply to the engine radiator is not blocked, e.g. by
snow, slush or ice.
X Do not start the engine again until the coolant temperature is below
248 ‡ (120 †). Otherwise, the engine could be damaged.
X Drive to the nearest qualified specialist workshop.
X Avoid subjecting the engine to heavy loads, e.g. driving in mountainous
terrain, and stop-and-go traffic. 00AC
0051
The red coolant warning lamp comes on while the engine is running. A
warning tone also sounds.
The coolant temperature has exceeded 248 ‡ (120 †). The airflow to the
engine radiator may be blocked or the coolant level may be too low.
G WARNING
The engine is not being cooled sufficiently and may be damaged.
Do not drive when your engine is overheated. This can cause some fluids which
may have leaked into the engine compartment to catch fire.
Steam from the overheated engine can also cause serious burns which can
occur just by opening the hood.
There is a risk of injury.
X Observe the additional display messages in the multifunction display.
X Pull over and stop the vehicle safely and switch off the engine, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 190).310
Warning and indicator lamps in the instrument clusterOn-board computer and displays

Warning/
indicator
lamp 0051 0051
Signal type
Possible causes/consequences and 0050
0050Solutions X
Leave the vehicle and keep a safe distance from the vehicle until the engine
has cooled down.
X Check the coolant level and add coolant, observing the warning notes
(Y page 351).
X If you need to add coolant more often than usual, have the engine coolant
system checked.
X Make sure that the air supply to the engine radiator is not blocked, e.g. by
snow, slush or ice.
X At coolant temperatures below 248 ‡(120 †), drive to the nearest qualified
specialist workshop.
X Avoid subjecting the engine to heavy loads, e.g. driving in mountainous
terrain, and stop-and-go traffic. Driving systems
Warning/
indicator
lamp 0051 0051
Signal type
Possible causes/consequences and 0050
0050Solutions 00BA
0051
The red distance warning lamp lights up while the vehicle is in motion.
The distance to the vehicle in front is too small for the speed selected.
X Increase the distance. 00BA
0051
The red distance warning lamp lights up while the vehicle is in motion. A
warning tone also sounds.
You are approaching a vehicle or a stationary obstacle in your line of travel at
too high a speed.
X Be prepared to brake immediately.
X Pay careful attention to the traffic situation. You may have to brake or take
evasive action.
Further information on PRE-SAFE ®
Brake (Y page 78).
For further information on the distance warning function of COLLISION
PREVENTION ASSIST: (Y page 73). Warning and indicator lamps in the instrument cluster
311On-board computer and displays Z

Tires
Warning/
indicator
lamp 0051 0051
Signal type
Possible causes/consequences and 0050
0050Solutions 0077
0051
The yellow tire pressure monitor warning lamp (pressure loss/malfunction)
is lit.
The tire pressure monitor has detected a loss of pressure in at least one of
the tires.
G WARNING
With tire pressures which are too low, there is a risk of the following hazards:
R they may burst, especially as the load and vehicle speed increase.
R they may wear excessively and/or unevenly, which may greatly impair tire
traction.
R the driving characteristics, as well as steering and braking, may be greatly
impaired.
There is a risk of an accident.
X Stop the vehicle without making any sudden steering or braking maneuvers.
Pay attention to the traffic conditions as you do so.
X Secure the vehicle against rolling away (Y page 190).
X Observe the additional display messages in the multifunction display.
X Check the tires and, if necessary, follow the instructions for a flat tire
(Y page 365).
X Check the tire pressure (Y page 391).
X If necessary, correct the tire pressure. 0077
0051
The yellow tire pressure monitor warning lamp (pressure loss/malfunction)
flashes for approximately one minute and then remains lit.
The tire pressure monitor is faulty.
G WARNING
The system is possibly unable to recognize or register low tire pressure.
There is a risk of an accident.
X Observe the additional display messages in the multifunction display.
X Visit a qualified specialist workshop. 312
Warning and indicator lamps in the instrument clusterOn-board computer and displays

Vehicle
Warning/
indicator
lamp 0051 0051
Signal type
Possible causes/consequences and 0050
0050Solutions 00CC
0051
The red power steering warning lamp is lit while the engine is running.
The power steering is malfunctioning.
A warning tone also sounds.
G WARNING
You will need to use more force to steer.
There is a risk of an accident.
X 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 specialist
workshop.
X If you are unable to steer safely: do not drive on. Contact the nearest
qualified specialist workshop. Warning and indicator lamps in the instrument cluster
313On-board computer and displays Z

Useful information
i This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
i Read the information on qualified
specialist workshops: (Y page 27).Stowage areas
Loading guidelines
G
WARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Exhaust
gases can enter the vehicle interior if the
trunk lid is open when the engine is running,
especially if the vehicle is in motion. There is
a risk of poisoning.
Always switch off the engine before opening
the trunk lid. Never drive with the trunk lid
open. G
WARNING
If objects, luggage or loads are not secured or
not secured sufficiently, they could slip, tip
over or be flung around and thereby hit vehicle
occupants. There is a risk of injury,
particularly in the event of sudden braking or
a sudden change in direction.
Always store objects so that they cannot be
flung around. Secure objects, luggage or
loads against slipping or tipping before the
journey. The handling characteristics of a laden
vehicle are dependent on the distribution of
the load within the vehicle. For this reason,
you should observe the following notes when
transporting a load:
R
Never exceed the maximum permissible
gross vehicle weight or the gross axle
weight rating of the vehicle (including
occupants). The values are specified on the
vehicle identification plate on the B-pillar of
the driver's door.
R The trunk is the preferred place to carry
objects.
R Position heavy loads as far forwards as
possible and as low down in the trunk as
possible.
R The load must not protrude above the
upper edge of the seat backrests.
R Always place the load behind unoccupied
seats if possible.
R Secure the load with sufficiently strong and
wear-resistant tie-downs. Pad sharp edges
for protection. Stowage space
Important safety notes G
WARNING
If you do not correctly store objects in the
vehicle interior, they can slip or be flung
around, thus striking vehicle occupants.
There is a risk of injury, especially when
braking or abruptly changing directions.
R Always store objects so that they cannot be
flung around in these or in similar
situations.
R Always make sure that objects do not
protrude from stowage compartments,
parcel nets or stowage nets.
R Close lockable stowage compartments
while driving.
R Stow and secure objects that are heavy,
hard, pointy, sharp-edged, fragile or too
large in the trunk. 316
Stowage areasStowage and features

Stowage compartment under the armrest
X
To open: press button 0043or0044 and fold
the armrest to the left or right.
Depending on the vehicle's equipment, a USB
port, an AUX-IN jack or a Media Interface are
installed in the stowage compartment. A
Media Interface is a universal interface for
portable audio or video equipment, e.g. for an
iPod ®
, iPhone ®
or MP3 player (see the
separate COMAND operating instructions).
Stowage compartment under the driver's
seat and front-passenger seat G
WARNING
If you exceed the maximum load for the
stowage compartment, the cover may not be
able to restrain the items. Items may be
thrown out of the stowage compartment and
hit vehicle occupants. There is a risk of injury,
particularly in the event of sudden braking or
a sudden change in direction.
Never exceed the maximum permissible load
for the stowage compartment. Stow and
secure heavy objects in the trunk.
The maximum permissible load of the
stowage compartment is 3.3 lbs (1.5 kg). X
To open: pull handle 0043up and fold
cover 0044forwards.
Stowage compartments in the doors You can store items such as a rolled up
fluorescent jacket and a small umbrella in
stowage compartment
0044in the doors.
In doors 0043you can store bottles with a
capacity of up to 34 fl. oz. (1.0 liter).
Stowage space in the rear Stowage compartment in the rear seat
armrest318
Stowage areasStowage and features

Vehicles with a rear bench seat:
X
To open: fold down the seat armrest.
X Pull handle 0043and fold the armrests
upwards. Vehicles with electrically adjustable outer
seats:
X To open: fold down the seat armrest.
X Pull up on handle 0043and fold the armrest
upwards.
Stowage compartment in the rear-
compartment center console Vehicles with individual seats and center
console in the rear:
X Pull up on handle 0043and fold the armrest
upwards.
Depending on the vehicle's equipment, a USB
port, an AUX-IN jack, a mobile phone bracket
or a 115 V or 230 V socket are installed in the
stowage compartment. Stowage box in the rear seat backrest
!
Do not sit on or support your body weight
on the rear seat armrest when it is folded
down, as you could otherwise damage it. Vehicles with a rear bench seat:
X
To open: fold down the rear armrest.
X Pull handle 0043and fold down cover 0044. Vehicles with individual seats and center
console in the rear:
X
To open: fold down the rear armrest.
X Pull handle 0043and fold down cover 0044.
Depending on the vehicle's equipment, a DVD
player is installed instead of a stowage
compartment.
Folding table G
WARNING
If the folding table is folded out while the
vehicle is in motion, passengers can be
thrown against it, particularly in the event of
an accident, heavy braking or a sudden
change of direction. There is a risk of injury. Stowage areas
319Stowage and features
Z