2012 MERCEDES-BENZ CLS-Class Service

If engine running problems are apparent,
have the cause checked immediately and
repaired. Excess unburned fuel can
otherwise enter the catalytic converter,
leading to overheating and possibly
causing a fire.
! Use a filter when refueling from a fuel can.
Otherwise, the fuel lines and/or injection
system could be blocked by particles from
the fuel can.
i Only refuel with premium-grade unleaded
gasoline with a specified minimum octane
number of 91 (average value of 96 RON/
86 MON).
Usually, you will find information about the
fuel grade on the pump. If you cannot find
the label on the gasoline pump, ask the gas
station staff.
You can find more information under “Fuel”
( Y page 347), or by contacting an
authorized Mercedes-Benz Service Center
or visiting http://www.mbusa.com (USA
only).
Refueling
Fuel filler flap
The fuel filler flap is unlocked or locked
automatically when you open or close the
vehicle with the SmartKey or using KEYLESS-
GO.
The position of the fuel filler cap is displayed
in the instrument cluster 8. The arrow
next to the filling pump indicates the side of
the vehicle.
:To open the fuel filler flap;To insert the fuel filler cap=Tire pressure table?Fuel type
Opening
XSwitch off the engine.XRemove the SmartKey from the ignition
lock.
KEYLESS-GO: open the driver’s door. This
switches the ignition to position 0, which
corresponds to having removed the
SmartKey. The driver’s door can be closed
again.XPress the fuel filler flap in the direction of
arrow :.
The fuel filler flap opens slightly.XOpen the fuel filler flap.XTurn the fuel filler cap counter-clockwise
and remove it.XInsert the fuel filler cap into the holder
bracket on the inside of filler flap ;.XCompletely insert the pump nozzle into the
filler neck and refuel.XOnly fill the tank until the pump nozzle
switches off.
! Overfilling the fuel tank could damage the
fuel system.
148RefuelingDriving and parking

Menus and submenus
Menu overview
The number of menus shown depends on the optional equipment in the vehicle.
Function:Trip menu ( Y page 201);Navi menu (navigation instructions) ( Y page 202)=Audio menu ( Y page 203)?Tel menu (telephone) ( Y page 204)ADriveAssist menu (assistance) ( Y page 206)BService menu (Y page 208)
R calls up display messages ( Y page 216)
R tire pressure loss warning system (Canada only) ( Y page 321)
R tire pressure monitor ( Y page 322)
R ASSYST PLUS service interval display ( Y page 284)CSettings menu (Y page 208)DAMG menu in AMG vehicles ( Y page 213)200Menus and submenusOn-board computer and displays

You will see one of the following display
messages in the multifunction display:
R Telephone Ready or the name of the
network provider: the mobile phone has
found a network and is ready to receive.
R Phone No Service : no network is
available, or the mobile phone is searching
for a network.
Accepting a call
If someone calls you when you are in the Tel
menu, a display message appears in the
multifunction display, for example:
XPress the 6 button on the steering
wheel to accept an incoming call.
If you are not in the Tel menu, you can still
accept a call.
Rejecting or ending a call
XPress the ~ button on the steering
wheel.
If you are not in the Tel menu, you can still
reject or end a call.
Dialing a number from the phone book
If your mobile phone is able to receive calls,
you can search for and dial a number from the
phone book in COMAND at any time.
XCopy the telephone book of the mobile
phone into the audio system or to COMAND
(see the separate operating instructions).
Copy the telephone book of the mobile
phone to COMAND (see the separate
operating instructions).XPress the = or ; button on the
steering wheel to select the Tel menu.XPress the 9, : or a button to call
up the phone book.XPress the 9 or : button to select the
desired name.
To start scrolling rapidly, press and hold the
9 or : button for longer than one
second. After a short time, the rapid scroll
speeds up.
Rapid scrolling stops when you release the
button or reach the end of the list.XIf only one telephone number is stored
for a name: press the 6 or a button
to start dialing.
or
XIf there is more than one number for a
particular name: press the 6 or a
button to display the numbers.XPress the 9 or : button to select the
number you want to dial.XPress the 6 or a button to start
dialing.
or
XIf you do not want to make a call: press
the ~ or % button.
Redialing
The on-board computer saves the last names
or numbers dialed in the redial memory.
XPress the = or ; button on the
steering wheel to select the Tel menu.XPress the 6 button to switch to the
redial memory.XPress the 9 or : button to select the
desired name or number.XPress the 6 or a button to start
dialing.
or
XIf you do not want to make a call: press
the ~ or % button.Menus and submenus205On-board computer and displaysZ

Service menu
In the Serv. menu you can:
R call up display messages ( Y page 216)
R restart the tire pressure loss warning
system (Canada only) ( Y page 321)
R check the tire pressure electronically
( Y page 322)
R call up the service due date ( Y page 284)
Settings menu
Introduction
The Sett. menu can be used for:
R changing the instrument cluster settings
R changing the light settings
R changing the vehicle settings
R changing the convenience settings
R restoring the factory settings
Instrument cluster
Selecting the unit of measurement for
distance
The Display Unit Speed-/Odometer:
function allows you to choose whether
certain displays appear in kilometers or miles.
The selected unit of measurement for
distance applies to:
R the digital speedometer in the Trip menu
R the odometer and the trip odometer
R the trip computer
R the current consumption and the range
R the navigation instruction in the Navi menu
R DISTRONIC PLUS
R ASSYST PLUS service interval displayXPress the = or ; button on the
steering wheel to select the Settings
menu.XPress the : or 9 button to select the
Instr. cluster submenu.XPress the a button to confirm.XPress the : or 9 button to select the
Display Unit Speed-/Odometer
function.
You will see the selected setting: km or
miles .XPress the a button to save the setting.
Selecting the permanent display function
The Permanent Display: function allows
you to choose whether the multifunction
display always shows the outside
temperature or the speed in km/h (USA) or
mph (Canada).
XPress the = or ; button on the
steering wheel to select the Settings
menu.XPress the : or 9 button to select the
Instr. cluster submenu.XPress the a button to confirm.XPress the : or 9 button to select the
Permanent display function.
You will see the selected setting Outside
Temperature or Speedometer [km/h]: .XPress the a button to save the setting.208Menus and submenusOn-board computer and displays

Display messagesPossible causes/consequences and M SolutionsPRE-SAFE
Functions Limited
See Operator's
ManualGRisk of accident
PRE-SAFE ®
Brake is defective. BAS PLUS or the distance warning
signal may also have failed.
XVisit a qualified specialist workshop.6
SRS Malfunction
Service RequiredGRisk of injury
There is a malfunction in the SRS (Supplemental Restraint
System). The 6 warning lamp also lights up in the instrument
cluster.
XVisit a qualified specialist workshop.6
Front Left
Malfunction
Service Required or
Front Right
Malfunction
Service RequiredGRisk of injury
SRS has malfunctioned at the front on the left or right. The 6
warning lamp also lights up in the instrument cluster.
XVisit a qualified specialist workshop.6
Rear Left
Malfunction
Service Required or
Rear Right
Malfunction
Service RequiredGRisk of injury
SRS has malfunctioned at the rear on the left or right. The 6
warning lamp also lights up in the instrument cluster.
XVisit a qualified specialist workshop.6
Left Side Curtain
Airbag Malfunction
Service Required or
Right Side Curtain
Airbag Malfunction
Service RequiredGRisk of injury
There is a malfunction in the left-hand and/or right-hand window
curtain air bag. The 6 warning lamp also lights up in the
instrument cluster.
XVisit a qualified specialist workshop.GWARNING
In the event a malfunction of the SRS is indicated as outlined above, the SRS may not be
operational.
For your safety, we strongly recommend that you contact an authorized Mercedes-Benz Center
immediately to have the system checked. Otherwise the SRS may not be activated when needed
in an accident, which could result in serious or fatal injury, or it might deploy unexpectedly and
unnecessarily which could also result in injury.
Display messages221On-board computer and displaysZ

Display messagesPossible causes/consequences and M SolutionsService Required
Do Not Shift Gears
Visit DealerYou cannot change the transmission position due to a malfunction.
A warning tone also sounds.
If transmission position D is selected:XDrive to a qualified specialist workshop without shifting the
transmission from position D.
If transmission position R, N or P is selected:
XNotify a qualified specialist workshop or breakdown service.Only Shift to 'P'
when Vehicle is
StationaryThe vehicle is moving.XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.XShift the transmission to position P.NThe trunk lid is open.XClose the trunk lid.MGRisk of accident
The hood is open.
XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.XEngage the parking brake.XClose the hood.CAt least one door is open.XClose all the doors._
Rear Left Backrest
Not Latched or Rear
Right Backrest Not
LatchedGRisk of injury
The backrest in the rear is not engaged on the left-hand and/or
right-hand side.
XPush the backrest back until it engages._
Lock Seat Backrest
Front Left or Lock
Seat Backrest
Front RightThe driver's or front passenger's seat backrest is not engaged. A
warning tone also sounds.XPush the backrest back until it engages.238Display messagesOn-board computer and displays

Socket in the front-compartment center
console
All vehicles (except AMG)
XTo open: slide cover : forwards until it
engages.XLift up the cover of socket ;.XTo close: press cover : briefly at the
front.
The cover moves back.
AMG vehicles
XTo open: press on trim :.
The stowage compartment opens.
You can now see the 12 V socket.Socket in the rear-compartment center
consoleXSlide cover ; forwards until it engages.XLift up the cover of socket :.
Socket in the trunk
XLift up the cover of socket :.
mbrace
Important safety notes
! A license agreement must exist in order
to activate the mbrace service. Ensure that
your system is activated and ready for use,
and press the ï MB Info call button to
register. If any of the steps mentioned is
not carried out, the system may not be
activated.
Features267Stowing and featuresZ

If you have questions about the activation,
contact one of the following telephone
assistance services:
R USA: Mercedes-Benz Customer
Assistance Center under
1-800-FOR-MERCedes
(1-800-367-6372) or 1-888-990-9007
R Canada: Customer Service at
1-888-923-8367
Shortly after successfully registering with the
mbrace service, a user ID and password will
be sent to you by post. You can use this
password to log in to the mbrace section
under "Owners Online" at http://
www.mbusa.com 18
.
The mbrace system is available if:
R it has been activated and is operational.
R the corresponding mobile phone network
is available for transmitting data to the
Customer Center.
R a service subscription is available.
R the starter battery is sufficiently charged.
i Determining the location of the vehicle on
a map is only possible if there is sufficient
GPS reception and the vehicle position can
be forwarded to the Customer Center.
The mbrace system
The mbrace system provides different
services, e.g.:
R automatic and manual emergency call
R Roadside Assistance call
R MB Info call
To adjust the volume during an mbrace call,
proceed as follows:
XPress the W or X button on the
multifunction steering wheel.
or
XUse the volume controller of the audio
system/COMAND.You can find further information and a
description of all available features under
"Owners Online" at http://
www.mbusa.com 19
.
System self-test
After you have switched on the ignition, the
system carries out a self-diagnosis.
GWARNING
A malfunction in the system has been
detected if one of the following conditions
occurs:
R the indicator lamp in the SOS button does
not light up during the system self-
diagnosis.
R the indicator lamp in the F Roadside
Assistance button does not light up during
the system self-diagnosis.
R The indicator lamp in the ï information
button does not light up during self-
diagnosis of the system.
R the indicator lamp in the SOS button,
F Roadside Assistance button or ï
information button continues to be lit red
after the system self-diagnosis.
R The Tele Aid Inoperative or Tele Aid
Not Activated message appears in the
multifunction display after the system self-
test.
If a malfunction is indicated as outlined above,
the system may not operate as expected. In
the event of an emergency, assistance must
be summoned by other means.
Have the system checked at the nearest
authorized Mercedes-Benz Center or contact
the following service hotlines:
R USA: Mercedes-Benz Customer Assistance
Center under
1-800-FOR-MERCedes(1-800-367-6372)
or 1-888-990-9007
R Canada: Customer Service at
1-888-923-8367
18 USA only.
19 USA only.268FeaturesStowing and features