Battery MERCEDES-BENZ R-Class 2011 W251 Owner's Manual

B
BAS (Brake Assist System) ................. 68
Battery Charging ........................................ 310
Checking (SmartKey) .......................78
Display message ............................ 226
Important safety guidelines
(SmartKey) ....................................... 77
Jump-starting ................................. 311
Safety notes .................................. 308
Belt
see Seat belts
Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 210
Display message ............................ 229
Function/notes ............................. 191
Trailer towing ................................. 193
BlueTEC
AdBlue ®
......................................... 353
Adding AdBlue ®
............................. 165
Brake fluid
Notes ............................................. 355
Brake fluid level ................................ 282
Brake lamp (display message) ......... 222
Brakes ABS .................................................. 67
BAS .................................................. 68
Brake fluid (notes) .........................355
Display message ............................ 220
Maintenance .................................. 170
Parking brake ........................ 167, 171
Warning lamp ................................. 236
Braking
Important safety instructions ......... 170
Breakdown
see Accident (notes)
see Flat tire
Bulbs
Backup lamp .................................. 125
High-beam headlamps ...................124
License plate lamp .........................126
Low-beam headlamps ....................123
Overview ........................................ 122
Parking lamps ................................ 124
Replacing ....................................... 125Standing lamps (front) ...................124
Turn signals (front) ......................... 124
C
CAC (Customer Assistance Center) .........22
California
Important notice for retail
customers and lessees ....................20
Calling up a malfunction
see Display messages
Care
Carpets .......................................... 289
Car wash ........................................ 284
Display ........................................... 287
Gear or selector lever ....................288
Headlamps ..................................... 286
Notes ............................................. 283
Paint .............................................. 285
Plastic trim .................................... 287
Power washer ................................ 285
Rear view camera .......................... 287
Roof lining ...................................... 289
Seat belt ........................................ 289
Seat covers .................................... 288
Sensors ......................................... 287
Steering wheel ............................... 288
Tail pipes ....................................... 287
Trim strips ..................................... 288
Washing by hand ........................... 285
Wheels ........................................... 285
Windows ........................................ 286
Wiper blades .................................. 286
Wooden trim .................................. 288
Cargo compartment cover ............... 256
Extending ....................................... 257
Cargo compartment enlargement ... 250
Full ................................................. 251
Partial ............................................ 251
Cargo compartment floor ................. 294
Cargo net Attaching ....................................... 259
Important safety information .........258
Cargo tie down rings ......................... 255
CD player/CD changer (on-board
computer) .......................................... 203
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Switching seat heating on/off .......108
Switching the seat ventilation on/
off .................................................. 108
Seat ventilation
Indicator lamp (Malfunction) ..........109
Securing hooks .................................. 256
Sensors (cleaning instructions) ....... 287
Service indicator see Service interval display
Service interval display .................... 282
Displaying a service message (on-
board computer) ............................ 283
Service products
AdBlue ®
special additives ..............353
Brake fluid ..................................... 355
Coolant (engine) ............................ 355
Engine oil ....................................... 354
Filling capacity ............................... 351
Fuel ................................................ 352
Important safety notes ..................350
Notes ............................................. 350
Refrigerant (air-conditioning
system) .......................................... 355
Washer fluid ................................... 357
Settings
Factory (on-board computer) .........205
On-board computer .......................205
Shift ranges ....................................... 158
Side impact air bag ............................. 40
Side marker lamp (display
message) ............................................ 223
Side windows Convenience closing feature ............89
Convenience opening feature ..........89
Hinged side windows .......................88
Important safety information ...........86
Opening/closing .............................. 87
Resetting ......................................... 88
Troubleshooting ............................... 90
Sliding sunroof
Important safety information ...........91
Troubleshooting ............................... 94
see Panorama roof with power
tilt/sliding panel
see Tilt/sliding sunroof SmartKey
Changing the battery .......................78
Changing the programming .............77
Checking the battery .................74, 78
Important safety notes ....................74
Malfunction ...................................... 79
Socket ................................................ 265
2nd row of seats ............................ 265
Dashboard ..................................... 265
Front-passenger footwell ...............265
Luggage compartment ...................266
SOS
see mbrace
Spare wheel
Notes/data .................................... 346
Storage location ............................ 295
Stowing .......................................... 295
see Emergency spare wheel
Speedometer
Additional speedometer (on-
board computer) ............................ 202
Segments ...................................... 199
Setting the unit (on-board
computer) ...................................... 205
SRS (Supplemental Restraint
System) Display message ............................ 215
Introduction ..................................... 36
Warning lamp ................................. 241
Warning lamp (function) ................... 36
Standard display (on-board
computer) .......................................... 202
Starting the engine Important safety instructions ......... 150
Station
see Radio
Status line (on-board computer)
Multifunction display .....................200
Selecting the display ...................... 206
Steering (display message) .............. 234
Steering wheel Adjusting (electrically) ...................110
Adjusting (manually) ......................109
Buttons (on-board computer) ......... 199
Cleaning ......................................... 288
Important safety instructions ......... 109
Memory function (storing
settings) ......................................... 11014IndexBA 251 USA, CA Edition A 2011; 1; 3, en-USd2sboikeVersion: 3.0.3.52010-04-16T14:31:55+02:00 - Seite 14

The · distance warning lamp in the
instrument cluster will light up.
R you are approaching the vehicle in front
rapidly. An intermittent warning tone will
then sound and the · distance warning
lamp in the instrument cluster will light up.
You must apply the brakes yourself in order
to maintain the appropriate distance to the
vehicle in front and prevent a collision.GWarning!
If the distance warning lamp · in the
instrument cluster comes on while driving
and/or an intermittent warning sounds,
immediate attention on the part of the driver
is required. As required by the traffic
situation, apply the brakes and navigate
around a possible obstacle. However, do not
drive by relying on the distance warning
function, as this will result in an emergency
braking application. This will not always
enable you to avoid a collision, especially
when traveling on varying road surface
conditions and with varying driver reaction.
Complex driving situations are not always
fully recognized by the distance warning
function. This could result in wrong or missing
distance warnings.
XTo activate/deactivate: activate or
deactivate the distance warning function in
the on-board computer ( Y page 210).
After activation, the Ä symbol is
displayed in the lower multifunction
display.
Anti-theft systems
Immobilizer
The immobilizer prevents your vehicle from
being started without the correct SmartKey.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. The
engine can be started by anyone with a valid
SmartKey that is left inside the vehicle.
XTo activate with the SmartKey: remove
the SmartKey from the ignition lock.XTo activate with KEYLESS-GO: switch the
ignition off and open the driver's door.XTo deactivate: switch on the ignition.
i
The immobilizer is always deactivated
when you start the engine.
In the event that the engine cannot be
started when the starter battery is fully
charged, the immobilizer may be faulty.
Contact an authorized Mercedes-Benz
Center or call 1-800-FOR-MERCedes (in
USA) or 1-800-387-0100 (in Canada).
ATA (Anti-Theft Alarm system)
A visual and audible alarm is triggered if the
alarm system is armed and you open:
R a door
R the vehicle with the mechanical key
R the tailgate
R the hood
The alarm is not switched off, even if you
close the open door that has triggered it, for
example.
i If the alarm stays on for more than 30
seconds, the emergency call system
mbrace (USA only) or Tele Aid (Canada
only) initiates a call to the Customer
Assistance Center automatically. The
emergency call system initiates the call
provided that:
R you have subscribed to the mbrace/Tele
Aid service
R the mbrace/Tele Aid service has been
activated properly
R the mobile phone, power supply and GPS
necessary are available
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If you pull on the handle of the tailgate, only
the cargo area of the vehicle is unlocked.
i If the vehicle has been parked for a long
time, you must pull the door handle to
activate the KEYLESS-GO functions.
Changing the settings of the locking
system
You can change the settings of the locking
system in such a way that only the driver's
door and the fuel filler flap are unlocked. This
is useful if you frequently travel on your own.
XTo change the setting: press the %
and & buttons simultaneously for
approximately six seconds until the battery
check lamp flashes twice.
The SmartKey now functions as follows:
XTo unlock the driver's door: press the
% button once.XTo unlock centrally: press the %
button twice.XTo lock centrally: press the & button.
The KEYLESS-GO function is changed as
follows:
XTo unlock the driver's door: touch the
inner surface of the door handle on the
driver's door.XTo unlock centrally: touch the inner
surface of the door handle on the front-
passenger door or the rear door.XTo lock centrally: press locking
button : on one of the door handles.
Restoring the factory settings
XPress the % and & buttons
simultaneously for approximately six
seconds until the battery check lamp
flashes twice.Mechanical key
General notes
If you use the mechanical key to unlock and
open the driver's door, the anti-theft alarm
system will be triggered ( Y page 71).
There are several ways to turn off the alarm:
XPress the % or & button on the
SmartKey.
or
XInsert the SmartKey into the ignition lock.
or
XPress the Start/Stop button in the ignition
lock. The SmartKey must be in the vehicle.
or
XLock or unlock the vehicle using KEYLESS-
GO. The SmartKey must be outside the
vehicle.
Removing the mechanical key
XPush release catch : in the direction of
the arrow and at the same time remove
mechanical key ; from the SmartKey.
SmartKey battery
Important safety guidelines
It is advisable to have batteries replaced at a
qualified specialist workshop, e.g. at an
authorized Mercedes-Benz Center.
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GWarning!
Batteries are toxic and contain caustic
substances. For this reason, keep batteries
out of the reach of children.
If a battery has been swallowed, visit a doctor
immediately.
GWarning
SmartKey batteries contain perchlorate
material, which may require special handling
and regard for the environment. Check with
your local government's disposal guidelines.
California residents, see www.dtsc.ca.gov/
HazardousWaste/Perchlorate/
index.cfm.
Checking the battery
XPress the & or % button.
The battery is working properly if battery
charge indicator lamp : lights up briefly.
If battery charge indicator lamp : does not
light up briefly during the test, the key
batteries are discharged.
XChanging the key battery (Y page 78).
iConsult any authorized Mercedes-Benz
Center for a key battery.
iIf the battery is tested within the signal
range of the vehicle, you can open or close
the vehicle by pressing & or %
respectively.
Changing the battery
You require a CR 2025 3 V cell battery.
XTake the mechanical key out of the
SmartKey (Y page 77).
XPress the mechanical key into the opening
in the SmartKey in the direction of
arrow ; until cover : of the battery tray
opens. Do not hold the cover closed while
doing so.
XRemove the cover of the battery tray.XRepeatedly tap the SmartKey against your
palm until battery = falls out.
XInsert the new battery with the positive
pole facing upwards. Use a lint-free cloth to
do so.
XInsert the front tabs of the battery tray's
cover first and then press to close it.
XCheck the function of all SmartKey buttons
on the vehicle.
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Problems with the SmartKeyProblemPossible causes/consequences and M SolutionsYou cannot lock/
unlock the vehicle
using the SmartKey.The SmartKey battery is discharged or nearly discharged.XPoint the tip of the SmartKey at the driver's door handle from a
distance of approximately 1.5 ft (50 cm) and try to unlock or
lock the vehicle again.
If this does not work:
XUnlock the vehicle using the mechanical key ( Y page 77).XCheck the key battery and replace it if necessary ( Y page 78).The SmartKey is faulty.XLock the vehicle as described in the "Locking the vehicle
(mechanical key)" section ( Y page 82) or unlock it using the
mechanical key ( Y page 77).XHave the SmartKey checked at a qualified specialist workshop.You can no longer
lock/unlock the
vehicle using KEYLESS-
GO.KEYLESS-GO is in standby mode because the vehicle has not been
unlocked for an extended period.XPull the door handle twice and then insert the SmartKey into the
ignition lock.There is a malfunction with KEYLESS-GO.XLock/unlock the vehicle using the remote control function of
the SmartKey. Point the tip of the SmartKey at the driver's door
handle from close range and press the %/& button.XHave the SmartKey checked at a qualified specialist workshop.There is interference from a powerful source of radio waves.XLock/unlock the vehicle using the remote control function of
the SmartKey. Point the tip of the SmartKey at the driver's door
handle from close range and press the %/& button.You have lost a
SmartKey.XHave the SmartKey canceled at an authorized Mercedes-Benz
Center.XReport the loss immediately to the vehicle insurers.XIf necessary, have the locks changed as well.You have lost the
mechanical key.XReport the loss immediately to the vehicle insurers.XIf necessary, have the locks changed as well.SmartKey79Opening and closingBA 251 USA, CA Edition A 2011; 1; 3, en-USd2sboikeVersion: 3.0.3.52010-04-16T14:31:55+02:00 - Seite 79Z

ProblemPossible causes/consequences and M SolutionsThe engine cannot be
started using the
SmartKey.The on-board voltage is too low.XSwitch off non-essential consumers, e.g. seat heating or interior
lighting, and try to start the engine again.
If this does not work:
XCheck the starter battery and charge it if necessary
( Y page 308).
or
XJump-start the vehicle ( Y page 311).
or
XConsult a qualified specialist workshop.The engine cannot be
started using KEYLESS-
GO. The SmartKey is in
the vehicle.A door is open. Therefore, the SmartKey cannot be detected as
easily.XClose the door and try to start the vehicle again.There is interference from a powerful source of radio waves.XStart your vehicle with the SmartKey in the ignition lock.Doors
Important safety guidelines
GWarning!
When leaving the vehicle, always remove the
SmartKey from the starter switch. Always
take the SmartKey with you and lock the
vehicle. Do not leave children unattended in
the vehicle, even if they are secured in a child
restraint system, or with access to an
unlocked vehicle. A child's unsupervised
access to a vehicle could result in an accident
and/or serious personal injury. The children
could
R injure themselves on parts of the vehicle
R be seriously or fatally injured through
excessive exposure to extreme heat or cold
R injure themselves or cause an accident with
vehicle equipment that can be operated
even if the SmartKey is removed from the
starter switch or removed from the vehicle,
such as seat adjustment, steering wheel
adjustment, or the memory function
If children open a door, they could injure other
persons or get out of the vehicle and injure
themselves or be injured by following traffic.
Do not expose the child restraint system to
direct sunlight. The child restraint system's
metal parts, for example, could become very
hot, and the child could be burned by these
parts.GWarning!
Do not carry heavy or hard objects in the
passenger compartment or cargo
compartment unless they are firmly secured
in place.
Unsecured or improperly positioned cargo
increases a child’s risk of injury in the event
of
R strong braking maneuvers
R sudden changes of direction
R an accident
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override switch for the side windows is
activated.XTurn the key to position 2 in the ignition
lock.
i You can continue to operate the side
windows after you switch off the engine.
This function remains active for five
minutes or until one of the front doors is
opened.
XTo open: press the corresponding switch.XTo close: pull the corresponding switch.
i
If you press the switch beyond the point
of resistance, an automatic opening/
closing process is started in the
corresponding direction. You can stop
automatic operation by pressing again.
Opening and closing the hinged side
windows
You can operate the hinged side windows
electrically.
The hinged side windows can only be
operated from the driver's seat.
GWarning!
Make sure that nobody can become trapped
as you close the hinged side windows. If there
is a risk of somebody becoming trapped,
release the switch or push the switch again to
reopen the side window.
Door control panel
XMake sure that the key is in position 2 in
the ignition lock.XTo open: press switch : and release.
Both hinged side windows open fully.XTo close: pull switch : and release.
Both hinged side windows close fully.XTo stop the closing procedure: press
switch : again.
The hinged side window opens fully.
i If the hinged side windows are blocked
when closing, the closing procedure is
interrupted and the hinged side windows
open again slightly.
i For safety reasons, the hinged side
windows can only be opened again after
four seconds.
Resetting the side windows
You must reset each side window if:
R the battery has been disconnected or has
become discharged.
R the side window can no longer be fully
opened or closed.
XClose all the doors.XTurn the key to position 2 in the ignition
lock.XPull on the corresponding switch on the
door control panel until the side window is
completely closed ( Y page 87).XHold the switch for an additional second.
If the side window opens again slightly:
XPull the corresponding switch again
immediately and hold it for approximately
one second.88Side windowsOpening and closing
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Resetting
Reset the tilt/sliding sunroof if it does not
open smoothly, or if the battery has been
disconnected or has become discharged.
! Contact a qualified specialist workshop if
the tilt/sliding sunroof cannot be closed
fully or reset.
XRemove the SmartKey from the ignition
lock or turn to position 0 (KEYLESS-GO).XRemove the fuse for the tilt/sliding sunroof
from the main fuse box. To find out where
the fuse is located, refer to the fuse
allocation chart in the vehicle tool kit
( Y page 294).XReinsert the fuse.XSwitch on the ignition.XRaise the tilt/sliding sunroof fully at the
rear ( Y page 92).XKeep the 2 switch pressed for another
second.XMake sure that the tilt/sliding sunroof can
be opened or closed fully again using the
opening/closing process ( Y page 92).XIf the tilt/sliding sunroof can be raised fully
at the rear it is set correctly. If this is not
the case, you must repeat the previously
described steps.Operating the panorama sliding
sunroof
Opening and closing
Overhead control panel
:To raise;To open=To close
The panorama roof with power tilt/sliding
panel can only be moved when the roller
sunblinds are open.
XTurn the key to position 2 in the ignition
lock.XPush or pull the 2 switch in the
corresponding direction.
i When opening the panorama roof with
power tilt/sliding panel, you can initiate the
automatic opening process. To do so, press
the 2 switch briefly beyond the point of
resistance in the direction of arrow ;. By
pressing again, the automatic opening
process can be stopped.
Automatic raising is only available if the
panorama sliding sunroof is in the closed
position.
Operating the roller sunblinds of the
panorama sliding sunroof
General notes
The roller sunblinds provide protection from
the sun. The two roller sunblinds can only be
opened and closed together when the
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panorama roof with power tilt/sliding panel
is closed.GWarning!
When extending the roller sunblinds, make
sure no one is in danger of being injured by
the extending procedure. The extending of the
roller sunblinds can be immediately halted by
releasing the switch.
Opening and closing
Overhead control panel
:To open;To open=To closeXTurn the key to position 2 in the ignition
lock.XPush or pull the 2 switch in the
corresponding direction.
i When opening the roller sunblinds, you
can initiate an automatic opening process.
To do so, press the 2 switch briefly
beyond the point of resistance in the
direction of arrow ;. By pressing again,
the automatic opening process can be
stopped.
Resetting the panorama roof with
power tilt/sliding panel and the roller
sunblinds
Reset the panorama roof with power tilt/
sliding panel and the roller sunblinds if the
panorama roof with power tilt/sliding panel
does not open smoothly, or if the battery has
been disconnected or discharged.
! Do not open the panorama sliding sunroof
until it has been reset properly. Otherwise,
the panorama roof with power tilt/sliding
panel may lock in the open position.
If the panorama roof with power tilt/sliding
panel cannot be closed or adjusted,
contact a qualified specialist workshop,
e.g. a Mercedes-Benz Service Center.XRemove the SmartKey from the ignition
lock or turn to position 0 (KEYLESS-GO).XRemove the fuse for the panorama roof
with power tilt/sliding panel from the fuse
box. To find out where the fuse is located,
refer to the fuse allocation chart in the
vehicle tool kit ( Y page 294).XReinsert the fuse.XTurn the key to position 2 in the ignition
lock.XClose the roller sunblinds fully
( Y page 94).XKeep the 2 switch pressed for another
second.XOpen the roller sunblinds fully (Y page 94).XKeep the 2 switch pulled for an
additional second.XClose the panorama roof with power tilt/
sliding panel fully ( Y page 93).XKeep the 2 switch pressed for another
second.XMake sure that the panorama roof with
power tilt/sliding panel can be opened fully
again ( Y page 93).XIf this is not the case, repeat the previously
described steps.
Problems with the sliding sunroof/
panorama sliding sunroof
Problem: the sunroof cannot be closed
and you cannot see the cause.
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