2013 MERCEDES-BENZ R-CLASS FAMILY TOURER radio

Display messages Possible causes/consequences and
M Solutions
Blind Spot Assist
Currently
Unavailable See
Operator's Manual Blind Spot Assis
tis temporarily inoperative.
you have established the electrical connection between the trailer
and your vehicle.
X Press ato confirm the display message.
Blind Spot Assist is deactivated while towing a trailer. Blind Spot Assist is temporarily inoperative. Possible causes are:
R
the sensors are dirty.
R function is impaired due to heavy rain or snow.
R the radar sensor system is outside the operating temperature
range.
R the radar sensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio
stations or other sources of electromagnetic radiation.
The yellow 9indicator lamps also light up in the exterior
mirrors.
When the causes stated above no longer apply, the display
message disappears.
Blind Spot Assist is operational again.
If you are driving without a trailer and the displaym essage does
not disappear:
If the display message does not disappear:
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 166).
X Clean the sensors (Y page 293).
X Restart the engine. Blind Spot Assist
Inoperative Blind Spot Assist is defective.
The yellow
9indicator lamps also light up in the exterior
mirrors.
X Visit a qualified specialist workshop. Cruise Control
Inoperative Cruise control is defective.
Aw
arning tone also sounds.
X Visi taqualified specialist workshop. Display messages
229On-board computer and displays Z

Display messages Possible causes/consequences and
M Solutions
Cruise Control
- - - MPH Ac
ondition for activating cruise control has not been fulfilled.
You have tried to store aspeed below 20 mph (30 km/h), for
example.
X If conditions permit, drive faster than 20 mph (30 km/h) and
store the speed.
X Check the activation conditions for cruise control
(Y page 173). DISTRONIC
- - - MPH An activation condition for DISTRONIC is not fulfilled.
X
Check the activation conditions for DISTRONIC (Y page 175).DISTRONIC
Override DISTRONIC is no longer controlling the speed of the vehicle.
X
Remove your foot from the accelerator pedal. DISTRONIC
Inoperative DISTRONIC is faulty or the display has failed.
X
Visit a qualified specialist workshop. DISTRONIC
Currently
Unavailable See
Operator's Manual DISTRONIC is deactivated and temporarily inoperative. Possible
causes are:
R
the DISTRONIC cover in the radiator trim is dirty.
R function is impaired due to heavy rain, snow or fog.
R the radar sensors ystem is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio
stations or other sources of electromagnetic radiation.
R the rada rsensor system has not detected any vehicles or
stationary objects, e.g. traffic signs, for a long time.
R the system is outside the operating temperature range.
When the causes stated above no longer apply, the display
message disappears.
DISTRONIC is operational again.
If the display message does not disappear:
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 166).
X Clean the DISTRONIC cover in the radiator trim (Y page 293).
X Restart the engine. 230
Display messagesOn-board computer and displays

Display messages Possible causes/consequences and
M Solutions
Tire Pressure(s)
Please Correct The tire pressure is too low in at leas
tone 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 320).
X If necessary, correct the tire pressure.
X Restart the tire pressure monitor (Y page 322).Tire Pressure
Monitor Wheel
Sensor 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
specialist workshop. Tire Pressure
Monitor Currently
Unavailable Due to a 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. h
Tire Pressure
Caution: Tire
Defect The tire pressure in one or more tires has dropped suddenly.
Aw
arning tone also sounds.
G WARNING
If you drive with a flat tire, there is a ris kofthe 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 166).
X If there is a flat tire, inspect the tires (Y page 299). Display messages
233On-board computer and displays Z

Display messages Possible causes/consequences and
M Solutions
+
Change key
batteries The batteries of the KEYLESS-GO key are discharged.
X
Change the batteries ( Ypage 80). +
Don't forget your
key This display message is displayed fo
ramaximum of 60 seconds
and is simply a reminder.
You have opened the driver's door with the engine switched off.
The KEYLESS-GO key is not in the ignition lock.
X Remember to take the KEYLESS-GO key with you when you
leave the vehicle. +
Key not detected
(red display message) The KEYLESS-GO key is not in the vehicle.
Aw
arning tone also sounds.
If the engine is switched off, you can no longer loc kthe 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 166).
X Locate the KEYLESS-GO key. The KEYLESS-GO key is not detected while the engine is running
because there is interference from a strong source of radio waves.
Aw
arning tone also sounds.
X Pull ove rand stop the vehicle safely as soo nas possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 166).
X Operate the vehicle with the SmartKey in the ignition lock. +
Key not detected
(white display
message) The KEYLESS-GO key cannot be detected at present.
X
Change the location of the SmartKey with the KEYLESS-GO
functions in the vehicle.
If the KEYLESS-GO key is still not detected:
X Operate the vehicle with the SmartKey in the ignition lock. +
Key detected in
vehicle The KEYLESS-GO key has been detected inside the vehicle during
locking.
X
Remove the KEYLESS-GO key from the vehicle. +
Pull starting
button out then
insert key The KEYLESS-GO key can continuously not be detected.
X
Insert the SmartKey into the ignition lock and turn it to the
desired position.
X Visit a qualified specialist workshop. Display messages
237On-board computer and displays Z

X
Slide the sea tbackwards.
X To install: place the floormat in the
footwell.
X Press studs :onto retainers ;.
X To remove: pull the floormat off
retainers ;.
X Remove the floormat. Infrared reflective windshield
The infrared reflecting glass prevents the
vehicle interio
rfrom becoming too hot. It also
blocks radio waves up into the gigahertz
range.
To enable operation of radio-controlled
equipment, e.g. toll recording systems, areas
on the windshield are permeable to radio
waves :.Int hese areas, you can install
radio-controlled systems.
These areas can best be seen from outside
the vehicle by observing the light reflected off
the windshield. Features
281Stowage and features Z

Jump-starting
G
WARNING
Failure to follow these directions will cause damage to the electronic components, and can lead
to a battery explosion and severe injury or death.
Never lean over batteries while connecting or jump starting. You might get injured.
Battery fluid contains sulfuric acid. Do not allow this fluid to come in contact with eyes, skin or
clothing. In case it does, immediately flush affected area with water, and seek medical help if
necessary.
Ab attery will also produce hydrogen gas, which is flammable and explosive. Keep flames or
sparks away from battery, avoid improper connectionofj umpercables, smoking, etc.
Attempting to jump start a frozen battery can result in it exploding, causing personal injury.
Read all instructions before proceeding. G
WARNING
Non-combusted fuel can collect in the exhaust system and ignite. There is a risk of fire. Avoid
repeated and lengthy starting attempts.
! Vehicles with agasoline engine: avoid repeated and lengthy starting attempts.
Otherwise, the catalytic converter could be damaged by non-combusted fuel.
Do not start the vehicle using a rapid charging device. If yourv ehicle's battery is discharged,
the engine can be jump-started from another vehicle or from a second battery using jumper
cables. Observe the following points:
R The battery is not accessible in all vehicles. If the other vehicle's batter yis not accessible,
jump-start the vehicle using a second battery or ajump-starting device.
R Vehicles with agasoline engine: only jump-start the vehicle whent he engine and exhaust
system are cold.
R Do not start the engine if the battery is frozen. Let the battery thaw first.
R Only jump-start from batteries with a 12 V voltage rating.
R Only use jumper cables which have a sufficient cross-section and insulated terminal clamps.
R If the battery is fully discharged, leave the battery that is being used to jump-start connected
for a few minutes before attempting to start. This charges the empty battery a little.
R Make sure that the two vehicles do not touch.
Make sure that:
R the jumper cables are not damaged.
R when the jumper cables are connected to the battery, uninsulated sections of the terminal
clamp do not come into contact with other metal sections.
R the jumper cables cannot come into contact with parts such as the drive pulley or the fan.
These parts move when the engine is started and while it is running.
X Apply the parking brake firmly.
X Shift the transmission to position P.
X Switch off all electrical consumers (e.g. radio, blower, etc.).
X Open the hood (Y page 284).304
Jump-startingBreakdown assistance

computer. In this case, do not reduce the tire
pressures.
The operation of the tire pressure monitor can
be affected by interference from radio
transmitting equipment (e.g. radio
headphones, two-way radios) that may be
being operated in or nea
rthe vehicle.
Checking tire pressure electronically X
Make sure that the SmartKey is in
position 2(Y page 149) in the ignition lock.
X Press and hold the VorU button on
the multifunction steering wheel until the
standard display appears in the
multifunction display (Y page 203).
X Press and hold the &or* button
until the current tire pressure of each tire
is shown in the multifunction display.
If the vehicle has been parked for over
20 minutes, the Tire pressure displayed after driving for a few
minutes message appears.
After a teach-in period, the tire pressure
monitor automatically recognizes new wheels
or new sensors. As long as a clear allocation
of the tire pressure values to the individual
wheels is not possible, the Tire PressureMonitor Active message is shown instead
of the tire pressure display. The tire pressures
are already being monitored.
Tire pressure monitor warning
messages If the tire pressure monitor detects a
significant pressure loss on one or more tires,
a warning message is shown in the
multifunction display.
Awarning tone also
sounds and the tire pressure warning lamp
lights up in the instrumen tcluster.
Each tire that is affected by a significant loss
of pressure is highlighted in the pressure
display.
X If the Tire Pressure(s) Please Correct message appears in the
multifunction display, chec kthe tire pressure on all four wheels and correct it if
necessary.
i If the wheel positions on the vehicle are
interchanged, the tire pressures may be
displayed for the wrong positions for a
short time. This is rectified after a few
minutes of driving, and the tire pressures
are displayed for the correct positions.
Restarting the tire pressure monitor When you restart the tire pressure monitor,
all existing warning messages are deleted and
the warning lamps go out. The monitor uses
the currently set tire pressures as the
reference values for monitoring. The tire
pressure monitor must be restarted when you
set the tire pressure to a new value (as a result
of changed drive or load characteristics, for
example). The tire pressure monitor then
monitors the new tire pressure values.
X
Set the tire pressure to the value
recommended for the corresponding
driving situation on the Tire and Loading
Information placard on the driver's side
B-pillar (Y page 316).
Additional tire pressure values for different
loads can also be found on the tire pressure
table on the inside of the fuel filler flap
(Y page 316).
X Make sure that the tire pressure is correct
on all four wheels.
X Make sure that the SmartKey is in position
2in the ignition lock.
X Press and hold the VorU button on
the multifunction steering wheel until the
standard display appears in the
multifunction display (Y page 203).
X Press and hold the &or* button
until the tire pressure of each wheel or the
Tire pressure displayed after 322
Tire pressureWheels and tires