2015 MERCEDES-BENZ S-Class steering

Tires
Display messages
Possible causes/consequences and
M
MSolutions Check Tire Pres‐
Check Tire Pres‐
sure Soon sure Soon Canada only:
The tire pressure loss warning system has detected a significant
loss in pressure.
A warning tone also sounds.
Possible causes:
R you have changed the positions of the wheels and tires or instal-
led new wheels and tires.
R the tire pressure in one or more tires is not correct.
G WARNING
With tire pressures which are too low, there is a risk of the fol-
lowing 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 220).
X Check the tires and, if necessary, follow the instructions for a
flat tire (Y page 423).
X Check the tire pressures and, if necessary, correct the tire pres-
sure.
X Restart the tire pressure loss warning system when the tire
pressure is correct (Y page 452).Check Tire Pres‐ Check Tire Pres‐
sure Then Restart sure Then Restart
Run Flat Indicator Run Flat Indicator Canada only:
The tire pressure loss warning system generated a display mes-
sage and has not been restarted since.
X Set the correct tire pressure in all four tires.
X Restart the tire pressure loss warning system (Y page 452).Run Run
Flat
Flat Indicator
Indicator
Inoperative
Inoperative Canada only:
The tire pressure loss warning system is faulty.
X Visit a qualified specialist workshop. 348
Display
messagesOn-board computer and displays

Display messages
Possible causes/consequences and
M
MSolutions Please Correct
Please Correct
Tire Pressure Tire Pressure The tire pressure is too low in at least one of the tires, or the tire
pressure difference between the wheels is too great.
X Check the tire pressures at the next opportunity (Y page 449).
X If necessary, correct the tire pressure.
X Restart the tire pressure monitor (Y page 451).Check Tires
Check Tires The tire pressure in one or more tires has dropped significantly.
The wheel position is displayed in the multifunction display.
A warning tone also sounds.
G WARNING
With tire pressures which are too low, there is a risk of the fol-
lowing 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 220).
X Check the tires and, if necessary, follow the instructions for a
flat tire (Y page 423).
X Check the tire pressure (Y page 449).
X If necessary, correct the tire pressure. Display
messages
349On-board computer and displays Z

Display messages
Possible causes/consequences and
M
MSolutions Warning Tire Mal‐
Warning Tire Mal‐
function function The tire pressure in one or more tires has dropped suddenly. The
wheel position is shown in the multifunction display.
G WARNING
If you drive with a flat tire, there is a risk of the following hazards: R a flat tire affects the ability to steer or brake the vehicle.
R you could lose control of the vehicle.
R continued driving with a flat tire will cause excessive heat build-
up and possibly a fire.
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 220).
X Check the tires and, if necessary, follow the instructions for a
flat tire (Y page 423). Tire Press. Moni‐ Tire Press. Moni‐
tor Currently tor Currently
Unavailable Unavailable Due to a strong source of radio interference, no signals can be
received from the wheel sensors. The tire pressure monitor is
temporarily malfunctioning.
X Drive on.
The tire pressure monitor restarts automatically as soon as the
problem has been solved. TirePress. Sen‐ TirePress. Sen‐
sor(s) Missing sor(s) Missing There is no signal from the tire pressure sensor of one or several
wheels. The pressure of the affected tire is not displayed in the
multifunction display.
X Have the faulty tire pressure sensor replaced at a qualified spe-
cialist workshop. Tire Pressure Mon‐ Tire Pressure Mon‐
itor Inoperative itor Inoperative
No Wheel Sensors No Wheel Sensors The wheels mounted do not have a suitable tire pressure sensor.
The tire pressure monitor is deactivated.
X Mount wheels with suitable tire pressure sensors.
The tire pressure monitor is activated automatically after driving
for a few minutes. Tire Press. Moni‐ Tire Press. Moni‐
tor Inoperative tor Inoperative The tire pressure monitor is faulty.
X Visit a qualified specialist workshop. 350
Display
messagesOn-board computer and displays

Display messages
Possible causes/consequences and
M
MSolutions Front-Passenger
Front-Passenger
Seat Cannot Be Seat Cannot Be
Used Used
Visit
Visit Workshop
Workshop R
The front-passenger seat cannot be moved from the chauffeur
mode position into the normal position. There is a malfunction.
R The front-passenger seat head restraint is folded down and
there is a malfunction. The head restraint can no longer be fol-
ded 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.
X Do not use the front-passenger seat.
X Visit a qualified specialist workshop. n
Before Before
oper.
oper.front-
front-
pass. seat from
pass. seat from
rear, deactiv. rear, deactiv.
override feature. override feature. You have attempted to adjust the front-passenger seat from the
rear while the override feature was activated.
X Deactivate the override feature for the rear side windows
(Y page 75).
X Adjusts the front-passenger seat from the rear (Y page 124).Ð
Power Power
Steering
Steering Mal‐
Mal‐
function See Oper‐
function See Oper‐
ator's Manual ator's Manual 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. Phone No Service Phone No Service Your vehicle is outside the network provider's transmitter/
receiver range.
X Wait until the mobile phone operational readiness symbol
appears in the multifunction display. ¥
Check Washer Fluid Check Washer Fluid The washer fluid level in the washer fluid reservoir has dropped
below the minimum.
X Add washer fluid (Y page 409). Display
messages
353On-board computer and displays Z

SmartKey
Display messages
Possible causes/consequences and
M
MSolutions Â
Key Does Not Key Does Not
Belong to Vehicle Belong to Vehicle You have put the wrong SmartKey in the ignition lock.
X Use the correct SmartKey. Â
Take Take
Your
YourKey
Keyfrom
from
Ignition
Ignition The SmartKey is in the ignition lock.
X Remove the SmartKey. Â
Obtain a New Key Obtain a New Key The SmartKey needs to be replaced.
X Visit a qualified specialist workshop. Â
Replace Replace
Key
KeyBattery
Battery The SmartKey batteries are discharged.
X Change the batteries (Y page 94).Â
Don't Forget Your Don't Forget Your
Key Key The SmartKey is not in the ignition lock. You have opened the
driver's door with the engine switched off.
This display message is displayed for a maximum of 60 seconds
and is simply a reminder.
X Take the SmartKey with you when you leave the vehicle. Â
Key Not Detected Key Not Detected
(white display mes-
sage) The SmartKey is currently undetected.
X Change the location of the SmartKey in the vehicle.
If the SmartKey still cannot be detected:
X Insert the SmartKey into the ignition lock and turn it to the
desired position. Â
Key Not Detected Key Not Detected
(red display message) The SmartKey is not in the vehicle.
A warning tone also sounds.
If the engine is switched off, you can no longer lock the vehicle
centrally or start the engine.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 220).
X Locate the SmartKey.
X Press aon the steering wheel to confirm the display mes-
sage. 354
Display messagesOn-board computer and displays

Tires
Warning/
indicator
lamp
N N
Signal type
Possible causes/consequences and M
MSolutions h
N
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 220).
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 423).
X Check the tire pressure (Y page 449).
X If necessary, correct the tire pressure. h
N
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. 368
Warning and indicator lamps in the instrument clusterOn-board computer and displays

Vehicle
Warning/
indicator
lamp
N N
Signal type
Possible causes/consequences and M
MSolutions Ð
N
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
369On-board computer and displays Z

Stowage well under the trunk floor
Under the trunk floor you can find a multi-
purpose recess, e.g. for TIREFIT. X
To open: open the trunk lid.
X Holding the ribbing, press handle ;down-
wards.
Handle ;folds upwards.
X Swing trunk floor :upwards using han-
dle ;until it rests against the trunk parti-
tion. X
Fold out hook =on the underside of the
trunk floor. X
Clip hook =into groove ?.
X To close: unclip hook =from groove ?.
X Fasten hook =to the bracket on the
underside of the trunk floor.
X Fold the trunk floor down. Roof carrier
Important safety notes G
WARNING
When you load the roof, the center of gravity
of the vehicle rises and the driving character- istics change. If you exceed the maximum roof
load, the driving characteristics, as well as
steering and braking, will be greatly impaired.There is a risk of an accident.
Never exceed the maximum roof load and
adjust your driving style.
You will find information on the maximum roof
load in the "Technical data" section
(Y page 495).
! Mercedes-Benz recommends that you
only use roof carriers that have been tested
and approved for Mercedes-Benz vehicles.
This helps to avoid damage to the vehicle.
Position the load on the roof carrier in such
a way that the vehicle will not sustain dam-
age even when it is in motion.
Ensure that, depending on the vehicle's
equipment, you can raise the panorama
roof with power tilt/sliding panel fully and
open the trunk lid fully when the roof carrier is installed.
! To avoid damaging or scratching the cov-
ers, do not use metallic or hard objects to
open them.
An incorrectly secured roof carrier or roof
load may become detached from the vehicle.
You must therefore ensure that you observe
the roof carrier manufacturer's installation
instructions. Stowage areas
377Stowage and features Z