2015 MERCEDES-BENZ CLS-Class service

If you leave the vehicle parked for longer than
six weeks, the vehicle may suffer damage as a result of lack of use.
X Visit a qualified specialist workshop and
seek advice.
i You can obtain information about trickle
chargers from a qualified specialist work-
shop. Driving tips
General notes
Important safety notes G
WARNING
If you switch off the ignition while driving,
safety-relevant functions are only available
with limitations, or not at all. This could affect, for example, the power steering and the brake
boosting effect. You will require considerably
more effort to steer and brake. There is a risk of an accident.
Do not switch off the ignition while driving. G
WARNING
If you operate mobile communication equip-
ment while driving, you will be distracted from traffic conditions. You could also lose controlof the vehicle. There is a risk of an accident.
Only operate this equipment when the vehicleis stationary.
Observe the legal requirements for the coun- try in which you are driving. Some jurisdic-
tions prohibit the driver from using a mobile
phone while driving a vehicle.
If you make a call while driving, always use
hands-free mode. Only operate the telephone
when the traffic situation permits. If you are
unsure, pull over to a safe location and stop
before operating the telephone.
Bear in mind that at a speed of only 30 mph
(approximately 50 km/h), the vehicle covers
a distance of 44 ft (approximately 14 m) per
second. Drive sensibly – save fuel Observe the following tips to save fuel:
X The tires should always be inflated to the
recommended tire pressure.
X Remove unnecessary loads.
X Remove roof racks when they are not nee-
ded.
X Warm up the engine at low engine speeds.
X Avoid frequent acceleration or braking.
X Have all maintenance work carried out as
indicated by the service intervals in the
Maintenance Booklet or by the service
interval display.
Fuel consumption also increases when driv-
ing in cold weather, in stop-start traffic and in
hilly terrain.
Drinking and driving G
WARNING
Drinking and driving and/or taking drugs and driving are very dangerous combinations.
Even a small amount of alcohol or drugs can
affect your reflexes, perceptions and judg-
ment.
The possibility of a serious or even fatal acci-
dent is greatly increased when you drink or
take drugs and drive.
Do not drink or take drugs and drive or allow
anyone to drive who has been drinking or tak-
ing drugs.
Emission control G
WARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Inhaling
these exhaust gases leads to poisoning. There is a risk of fatal injury. Therefore never leave
the engine running in enclosed spaces with-
out sufficient ventilation.
Certain engine systems are designed to keep
the level of poisonous components in exhaust fumes within legal limits. Driving tips
173Driving and parking Z

These systems only work at peak efficiency if
they are serviced exactly in accordance with
the manufacturer's specifications. For this
reason, only have work on the engine carried
out by qualified and authorized Mercedes-
Benz technicians.
The engine settings must not be changed
under any circumstances. Furthermore, all
specific service work must be carried out at
regular intervals and in accordance with the
Mercedes-Benz service requirements. Details
can be found in the Maintenance Booklet. ECO display
The ECO display provides feedback on how
economical your driving characteristics are.
The ECO display assists you in achieving the
most economical driving style for the selec-
ted settings and prevailing conditions. Your
driving style can significantly influence the
vehicle's consumption.
The ECO display consists of three bars:
R Acceleration
Acceleration
R Constant Constant
R Coasting
Coasting
The percent value is the average value of the three bars. The three bars and the mean value
begin at the value of 50%. A higher percent-
age indicates a more economical driving
style.
The ECO display does not indicate the actual fuel consumption. A fixed percentage count
in the ECO display does not indicate a fixed
consumption. Apart from driving style, consumption is
dependent on many factors such as, e.g.:
R load
R tire pressure
R cold start
R choice of route
R electrical consumers switched on
These factors are not included in the ECO dis-
play.
The evaluation of your driving style is carried
out using the following three categories:
R Acceleration
Acceleration (evaluation of all accelera-
tion processes):
- The bar fills up: moderate acceleration,
especially at higher speeds
- The bar empties: sporty acceleration
R Constant Constant (assessment of driving behavior
at all times):
- The bar fills up: constant speed and
avoidance of unnecessary acceleration
and deceleration
- The bar empties: fluctuations in speed
R Coasting Coasting (assessment of all deceleration
processes):
- The bar fills up: anticipatory driving,
keeping your distance and early release
of the accelerator. The vehicle can coast
without use of the brakes.
- The bar empties: frequent braking
i An economical driving style specially
requires driving at moderate engine
speeds.
To achieve a higher value in the categories
Acceleration Acceleration andConstant
Constant:
R observe the gearshift recommendations.
R drive in drive program E.
i On long journeys at a constant speed, e.g.
on the highway, only the bar for Constant
Constant
will change.
i The ECO display summarizes the driving
characteristics from the start of the journey to its completion. For this reason, the bars 174
Driving tipsDriving and parking

You can have current status information dis-
played in the assistance menu (Y page 235)
of the on-board computer.
X Select the Assistance display for ATTEN-
TION ASSIST using the on-board computer
(Y page 235).
The following information is displayed:
R length of the journey since the last break.
R the attention level determined by ATTEN-
TION ASSIST, displayed in a bar display in
five levels from high to low.
R if ATTENTION ASSIST is unable to calculate
the attention level and cannot output a
warning, the System Suspended System Suspended message
appears. The bar display then changes the
display, e.g. if you are driving at a speed
below 37 mph (60 km/h) or above 124 mph
(200 km/h).
Activating ATTENTION ASSIST X
Activate ATTENTION ASSIST using the on-
board computer (Y page 236).
The system determines the attention level
of the driver depending on the setting
selected:
Standard selected: the sensitivity with
which the system determines the attention
level is set to normal.
Sensitive selected: the sensitivity is set
higher. The attention level detected by Atten- tion Assist is adapted accordingly and the
driver is warned earlier.
When ATTENTION ASSIST is deactivated, the À symbol and OFF appear in the multi-
function display in the assistance display
when the engine is running.
When ATTENTION ASSIST has been deactiva- ted, it is automatically reactivated after the
engine has been stopped. The sensitivity
selected corresponds to the last selection
activated (standard/sensitive). Warning in the multifunction display If fatigue or increasing lapses in concentra-
tion are detected, a warning appears in the
multifunction display: Attention Assist:
Attention Assist:
Take a Break! Take a Break!
In addition to the message shown in the mul-
tifunction display, you will then hear a warn-
ing tone.
X If necessary, take a break.
X Confirm the message by pressing the a
button on the steering wheel.
On long journeys, take regular breaks in good time to allow yourself to rest properly. If you
do not take a break, you will be warned again
after 15 minutes at the earliest. This will only
happen if ATTENTION ASSIST still detects
typical indicators of fatigue or increasing lap-
ses in concentration.
Vehicles with COMAND: if a warning is
issued in the multifunction display, a service
station search is performed in COMAND. You
can select a service station and navigation to this service station will then begin. This func- tion can be activated and deactivated in
COMAND. Lane Tracking package
General notes The Lane Tracking package consists of Blind
Spot Assist (Y
page 214) and Lane Keeping
Assist (Y page 216).
Blind Spot Assist General notes
Blind Spot Assist uses a radar sensor system
to monitor the areas on both sides of your
vehicle. It supports you from a speed of
approximately 20 mph (30 km/h). A warning
display in the exterior mirrors draws your
attention to vehicles detected in the moni-
tored area. If you then switch on the corre-
sponding turn signal to change lanes, you will also receive an optical and audible collision 214
Driving systemsDriving and parking

Useful information
i This Operator's Manual describes all
models and all standard and optional equip- ment 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 special-
ist workshops (Y page 26). Important safety notes
G
WARNING
If you operate information systems and com-
munication equipment integrated in the vehi- cle while driving, you will be distracted from
traffic conditions. You could also lose control of the vehicle. There is a risk of an accident.
Only operate the equipment when the traffic
situation permits. If you are not sure that this
is possible, park the vehicle paying attention
to traffic conditions and operate the equip-
ment when the vehicle is stationary.
You must observe the legal requirements for
the country in which you are currently driving when operating the on-board computer. G
WARNING
If the instrument cluster has failed or mal-
functioned, you may not recognize function
restrictions in systems relevant to safety. The operating safety of your vehicle may be
impaired. There is a risk of an accident.
Drive on carefully. Have the vehicle checked
at a qualified specialist workshop immedi-
ately.
The on-board computer only shows messages
or warnings from certain systems in the mul- tifunction display. You should therefore make sure your vehicle is operating safely at all
times.
If the operating safety of your vehicle is
impaired, pull over as soon as it is safe to do
so. Contact a qualified specialist workshop.
For an overview, see the instrument panel
illustration (Y page 33). Displays and operation
Coolant temperature display
G
WARNING
Opening the hood when the engine is over-
heated or when there is a fire in the engine
compartment could expose you to hot gases
or other service products. There is a risk of
injury.
Let an overheated engine cool down before
opening the hood. If there is a fire in the
engine compartment, keep the hood closed
and contact the fire department.
! A display message is shown if the coolant
temperature is too high.
If the coolant temperature is over 248 ‡
(120 †), do not continue driving. The
engine will otherwise be damaged.
The coolant temperature gauge is in the
instrument cluster on the left-hand side
(Y page 33).
Under normal operating conditions and with
the specified coolant level, the coolant tem-
perature may rise to 248 ‡ (120 †). Tachometer
! Do not drive in the overrevving range, as
this could damage the engine.
The red band in the tachometer indicates the
engine's overrevving range.
The fuel supply is interrupted to protect the
engine when the red band is reached. 226
Displays and operationOn-board computer and displays

X
Establish a Bluetooth ®
connection to Audio
20 or COMAND, see the separate operating instructions.
X Press the =or; button on the steer-
ing wheel to select the Tel
Tel menu.
You will see one of the following display mes-
sages in the multifunction display:
R Phone READY Phone READY or the name of the network
provider: the mobile phone has found a
network and is ready to receive.
R Phone No service
Phone No service: there is no network
available or the mobile phone is searching
for a network.
Accepting a call X
Press the 6button on the steering
wheel to accept an incoming call.
If someone calls you when you are in the Tel Tel
menu, a display message appears in the mul- tifunction display.
You can accept a call even if you are not in the
Tel
Tel menu.
Rejecting or ending a call X
Press the ~button on the steering
wheel.
You can end or reject a call even if you are not
in the Tel
Tel menu.
Dialing an entry from the phone book X
Press the =or; button on the steer-
ing wheel to select the Tel
Tel menu.
X Press the 9,:ora button to
switch to the phone book.
X Authorize access to the phone book on the
phone. X
Press the 9or: button to select the
desired name.
or
X To begin rapid scrolling: press and hold
the 9 or: button for longer than
one second.
Rapid scrolling stops when you release the
button or reach the end of the list.
X If only one telephone number is stored
for a name: press the6ora button
to start dialing.
or
X If there is more than one number for a
particular name: press the6ora
button to display the numbers.
X Press the 9or: button to select the
number you want to dial.
X Press the 6ora button to start dial-
ing.
or X To exit the phone book: press the~or
% button.
Redialing The on-board computer saves the last names
or numbers dialed in the redial memory.
X Press the =or; button on the steer-
ing wheel to select the Tel
Tel menu.
X Press the 6button to switch to the
redial memory.
X Press the 9or: button to select the
desired name or number.
X Press the 6ora button to start dial-
ing.
or X To exit the redial memory: press the
~ or% button. 234
Menus and submenusOn-board computer and displays

tion display in the assistance graphics dis-
play.
For further information about ATTENTION
ASSIST, see (Y page 213).
Activating/deactivating Blind Spot
Assist X
Press the =or; button on the steer-
ing wheel to select the DriveAssist DriveAssistmenu.
X Press the 9or: button to select
Blind Spot Assist
Blind Spot Assist .
X Press the abutton.
The current selection appears.
X To activate/deactivate: press thea
button again.
For further information about Blind Spot
Assist, see (Y page 214).
For further information about Active Blind
Spot Assist, see (Y page 218).
Activating/deactivating Lane Keeping
Assist X
Press the =or; button on the steer-
ing wheel to select the DriveAssist DriveAssistmenu.
X Press the 9or: button to select
Lane Keep. Assist
Lane Keep. Assist .
X Press the abutton.
The current selection appears.
X Press ato confirm.
X Press the :or9 button to set Off
Off,
Standard
Standard orAdaptive
Adaptive.
X Press the abutton to save the setting.
For further information about Lane Keeping
Assist, see (Y page 216).
For further information about Active Lane
Keeping Assist, see (Y page 221). Service menu
Depending on the equipment installed in the
vehicle, you have the following options in the
Serv. Serv. menu:
R Calling up display messages in message
memory (Y page 245)
R Restarting the tire pressure loss warning
system (Y page 352)
R Checking the tire pressure electronically
(Y page 352)
R Calling up the service due date
(Y page 316) Settings menu
Introduction Depending on the equipment installed in the
vehicle, In the
Sett.
Sett. menu you have the fol-
lowing options:
R Changing the instrument cluster settings
(Y page 238)
R Changing the light settings (Y page 238)
R Changing the vehicle settings
(Y page 240)
R Changing the convenience settings
(Y page 240)
R Restoring the factory settings
(Y page 241) Menus and submenus
237On-board computer and displays Z

Instrument cluster
Selecting the unit of measurement for dis-
tance
The Display Unit Speed-/Odometer: Display Unit Speed-/Odometer:
function allows you to choose whether cer-
tain displays appear in kilometers or miles in the multifunction display.
X Press the =or; button on the steer-
ing wheel to select the Sett.
Sett. menu.
X Press the :or9 button to select the
Instr. Cluster
Instr. Cluster submenu.
X Press ato confirm.
X Press the :or9 button to select the
Display Unit Speed-/Odometer Display Unit Speed-/Odometer func-
tion.
You will see the selected setting: km kmor
miles
miles.
X Press the abutton to save the setting.
The selected unit of measurement for dis-
tance applies to: R Digital speedometer in the Trip Tripmenu
R Odometer and the trip odometer
R Trip computer
R Current consumption and the range
R Navigation instructions in the Navi
Navimenu
R Cruise control
R DISTRONIC PLUS
R ASSYST PLUS service interval display
Selecting the permanent display function
You can determine whether the multifunction display permanently shows your speed or the
outside temperature.
X Press the =or; button on the steer-
ing wheel to select the Sett
Sett menu.
X Press the :or9 button to select the
Inst. Cluster
Inst. Cluster submenu.
X Press ato confirm.
X Press the :or9 button to select the
Permanent Display
Permanent Display function.
You will see the selected setting Outside
Outside
Temperature
Temperature orAdditional Speedome‐
Additional Speedome‐ ter [km/h] ter [km/h]
/AdditionalAdditional Speedometer Speedometer
[mph]
[mph].
X Press the abutton to save the setting.
i The speed is highlighted in km/h or in
mph conversely to your speedometer.
Lights Setting the brightness of the instrument
cluster lighting and switches
The lighting in the instrument cluster, in the
displays and the controls in the vehicle inte-
rior can be adjusted with the Brightness Brightness
Display/Switches:
Display/Switches: function.
X Press the =or; button on the steer-
ing wheel to select the Sett.
Sett.menu.
X Press the :or9 button to select the
Lights
Lights submenu.
X Press ato confirm.
X Press the :or9 button to select the
Brightness Display/Switches:
Brightness Display/Switches: func-
tion.
You will see the selected setting.
X Press ato confirm.
X Press the :or9 button to adjust the
brightness to any level from Level 1
Level 1 to
Level 5 Level 5 (bright).
X Press the aor% button to save the
setting.
If the light switch is set to Ã,Tor
L, the brightness is dependent upon
the brightness of the ambient light.
i The light sensor in the instrument cluster
automatically controls the brightness of
the multifunction display.
In daylight, the displays in the instrument
cluster are not illuminated.
Switching the daytime running lamps on/ off
i This function is not available in Canada. 238
Menus and submenusOn-board computer and displays

Display messages
Possible causes/consequences and
M
MSolutions 6
SRS. Malfunction SRS. Malfunction
Service Required Service Required The restraint system is faulty. The
6warning lamp also lights
up in the instrument cluster.
G WARNING
The air bags or Emergency Tensioning Devices may either be trig- gered unintentionally or, in the event of an accident, may not be
triggered.
There is an increased risk of injury.
X Visit a qualified specialist workshop.
Observe the additional information on restraint systems
(Y page 44). 6
Front Front
Left
LeftMalfunc‐
Malfunc‐
tion Service
tion Service
Required Required orFront
Front
Right Malfunction
Right Malfunction
Service Required Service Required The restraint system has malfunctioned at the front on the left or
right. The 6warning lamp also lights up in the instrument clus-
ter.
G WARNING
The air bags or Emergency Tensioning Devices may either be trig- gered unintentionally or, in the event of an accident, may not be
triggered.
There is an increased risk of injury.
X Visit a qualified specialist workshop. 6
Rear Left Malfunc‐ Rear Left Malfunc‐
tion Service tion Service
Required Required
orRear
Rear
Right Malfunction
Right Malfunction
Service Required Service Required The restraint system has malfunctioned at the rear on the left or
right. The 6warning lamp also lights up in the instrument clus-
ter.
G WARNING
The air bags or Emergency Tensioning Devices may either be trig- gered unintentionally or, in the event of an accident, may not be
triggered.
There is an increased risk of injury.
X Visit a qualified specialist workshop. 6
Left Side Curtain Left Side Curtain
Airbag Airbag
Malfunction
Malfunction
Service Required
Service Required
or Right Side Cur‐ Right Side Cur‐
tain Airbag Mal‐
tain Airbag Mal‐
function Service function Service
Required Required There is a malfunction in the left-hand or right-hand window cur-
tain air bag.
The
6 warning lamp also lights up in the instrument cluster.
G WARNING
The left or right window curtain air bag may either be triggered
unintentionally or, in the event of an accident, may not be trig-
gered.
There is an increased risk of injury. X Visit a qualified specialist workshop. 252
Display
messagesOn-board computer and displays