Page 126 of 400

126 Controls in detailControl systemInstrument cluster submenu
Access the 
INSTRUMENT CLUSTER
 submenu 
via the 
SETTINGS
 menu. Use the 
INSTRUMENT CLUSTER
 submenu to change 
the instrument cluster display settings. 
The following functions are available:Set time (hours)
This function can only be seen with audio 
system.
Move the selection marker with 
theæ orç button to the INSTRUMENT CLUSTER
 submenu.
Press buttonj ork repeatedly 
until you see this message in the 
display: 
TIME SETTINGS – HOURS
.The selection marker is on the hour 
setting.
Pressæ orç to set the hour.
Set time (minutes)
This function can only be seen with audio 
system.
Move the selection marker with 
theæ orç button to the INSTRUMENT CLUSTER
 submenu.
Function
Page
Set time (hours)
126
Set time (minutes)
126
Select time display mode
127
Select temperature display 
mode
127
Select speedometer display 
mode
128
Select language
128
Select display (speed display or 
outside temperature)
129
iVehicles with COMAND*:
For information on setting the time, 
refer to the separate COMAND 
operating instructions.
iVehicles with COMAND*:
For information on setting the time, 
refer to the separate COMAND 
operating instructions. 
     
        
        Page 127 of 400
127 Controls in detail
Control system
Press buttonj ork repeatedly 
until you see this message in the 
display: 
TIME SETTINGS – MINUTES
.
The selection marker is on the minute 
setting.
Pressæ orç to set the minutes.Selecting time display mode
Move the selection marker with 
theæ orç button to the INSTRUMENT CLUSTER
 submenu.
Press buttonj ork repeatedly 
until you see this message in the 
display: 
12/24 HOUR
.
The selection marker is on the current 
setting.
Pressæ orç to set the 
12h
 or 
24h
 time display mode.Selecting temperature display mode
Move the selection marker with 
theæ orç button to the INSTRUMENT CLUSTER
 submenu.
Press buttonj ork repeatedly 
until you see this message in the 
display: 
TEMP. INDICATOR
.
The selection marker is on the current 
setting.
Pressæ orç to set temperature 
unit to degrees Celsius (°C) or degrees 
Fahrenheit (°F). 
     
        
        Page 128 of 400
128 Controls in detailControl systemSelecting speedometer display mode
Move the selection marker with 
theæ orç button to the INSTRUMENT CLUSTER
 submenu.
Press buttonj ork repeatedly 
until you see this message in the 
display: 
DISPLAY VALUES IN
.
The selection marker is on the current 
setting.
Pressæ orç to set 
speedometer unit to 
Km or 
Miles
.Selecting language
Move the selection marker with 
theæ orç button to the INSTRUMENT CLUSTER
 submenu.
Press buttonj ork repeatedly 
until you see this message in the 
display: 
TEXT
.
The selection marker is on the current 
setting.
Pressæ orç to select the 
language to be used for the 
multifunction display messages.Available languages:
German
English
French
Italian
Spanish 
     
        
        Page 129 of 400

129 Controls in detail
Control system
Selecting display (speed display or 
outside temperature)
Move the selection marker with 
theæ orç button to the INSTRUMENT CLUSTER
 submenu.
Press buttonj ork repeatedly 
until you see this message in the 
display: 
SELECT DISPLAY
.
The selection marker is on the current 
setting.
Pressæ orç to select the 
display permanently shown in the 
multifunction display.Lighting submenu
Access the 
LIGHTING
 submenu via the 
SETTINGS
 menu. Use the 
LIGHTING 
submenu to change the lamp and lighting 
settings on your vehicle. The following 
functions are available:Setting daytime running lamp mode 
(USA only)
Move the selection marker with 
theæ orç button to the LIGHTING
 submenu.
Press buttonj ork repeatedly 
until you see this message in the 
display: 
LIGHT CIRCUIT HEADLIGHT 
MODE
.
The selection marker is on the current 
setting.
Pressæ orç to select manual 
or daytime running lamp (constant) 
mode. This function is not available in 
countries where daytime running 
lamps are mandatory.
Function
Page
Set daytime running lamp mode 
(USA only)
129
Set locator lighting
130
Exterior lamps delayed shut-off
131
Interior lighting delayed shut-off
132
 
     
        
        Page 137 of 400

137 Controls in detail
Control system
Fuel consumption statistics after start
Press buttonÿ orè repeatedly 
until you see the first function of the 
Trip computer menu.
Press buttonj ork repeatedly 
until you see this message in the 
display: 
AFTER START
.
1Distance driven since start
2Time elapsed since start
3Average fuel consumption since start
4Average speed since startFuel consumption since last reset
Press buttonÿ orè repeatedly 
until you see the first function of the 
Trip computer menu.
Press buttonj ork repeatedly 
until you see this message in the 
display: 
AFTER RESET
.
1Distance driven since last reset
2Time elapsed since last reset
3Average fuel consumption since last 
reset
4Average speed since last resetResetting fuel consumption statistics
Press buttonÿ orè repeatedly 
until you see the first function of the 
Trip computer menu.
Press buttonj ork repeatedly 
until you see the reading that you want 
to reset in the display.
Press and hold the reset button in the 
instrument cluster (
page 22) until 
the value is reset to0.
iAll statistics stored since the last 
engine start will be reset approximately 
four hours after the SmartKey in the 
starter switch is turned to position0 or 
removed from the starter switch.
Resetting will not occur if you turn the 
SmartKey back to position1 or2 
within this time period. 
     
        
        Page 229 of 400

229 Controls in detail
Useful features
Upgrade signals
The Tele Aid system processes calls using 
the following priority:
Automatic emergency – First priority
Manual emergency – Second priority
Roadside assistance – Third priority
Information – Fourth priority
Should a higher priority call be initiated 
while you are connected, an upgrade 
(alternating) tone will be heard, and the 
appropriate indicator lamp will flash. If 
certain information such as vehicle identi-
fication number or customer information is 
not available, the operator may need to 
retransmit.
During this time you will hear a beep and 
voice contact will be interrupted. Voice 
contact will resume once the retrans-
mission is completed. Once a call is 
concluded, a beep will be heard and the 
respective indicator lamp will stop flash-
ing. The COMAND* system operation will 
resume.
!If the indicator lamp continues to flash 
or the system does not reset, contact 
the Response Center at 
1-800-756-9018 (in the USA) or 
1-888-923-8367 (in Canada), or 
Mercedes-Benz Customer Assistance 
at 1-800-FOR-MERCedes 
(1-800-367-6372) in the USA or 
Customer Service at 1-800-387-0100 
in Canada.iThe indicator lamp in the respective 
button flashes until the call is con-
cluded. Calls can only be terminated by 
a Response Center or Customer Assis-
tance Center representative except 
Roadside Assistance and Information 
calls, which can also be terminated by 
pressing buttonì on the multifunc-
tion steering wheel.
iWhen a Tele Aid call has been initiated, 
the audio system or the COMAND* sys-
tem audio is muted and the selected 
mode (radio, tape or CD) pauses. The 
optional cellular phone (if installed) 
switches off. If you must use this 
phone, the vehicle must be parked. Dis-
connect the coiled cord and place the 
call. The COMAND* navigation system 
(if engaged) will continue to run. The 
display in the instrument cluster is 
available for use, and spoken com-
mands are only available by pressing 
the RPT button on the COMAND* unit. 
A pop-up window will appear in the 
COMAND* display to indicate that a 
Tele Aid call is in progress. 
     
        
        Page 240 of 400

240 OperationDriving instructionsBrakesTo help prevent brake disk corrosion after 
driving on wet road surfaces (particularly 
salted roads), it is advisable to brake the 
vehicle with considerable force prior to 
parking. The heat generated serves to dry 
the brakes.
If your brake system is normally only 
subject to moderate loads, you should 
occasionally test the effectiveness of the 
brakes by applying above-normal braking 
pressure at higher speeds. This will also 
enhance the grip of the brake pads. 
If the parking brake is released and the 
brake warning lamp in the instrument 
cluster stays on, the brake fluid level in the 
reservoir is too low.Brake pad wear or a leak in the system may 
be the reason for low brake fluid in the 
reservoir.
Have the brake system inspected 
immediately. Contact your authorized 
Mercedes-Benz Center.
All checks and service work on the brake 
system should be carried out by qualified 
technicians only. Contact your authorized 
Mercedes-Benz Center.
Only install brake pads and brake fluid 
recommended by Mercedes-Benz.Warning!
G
After driving in heavy rain for some time 
without applying the brakes or through wa-
ter deep enough to wet brake components, 
the first braking action may be somewhat 
reduced and increased pedal pressure may 
be necessary to obtain expected braking ef-
fect. Maintain a safe distance from vehicles 
in front.
Resting your foot on the brake pedal will 
cause excessive and premature wear of the 
brake pads.
It can also result in the brakes overheating, 
thereby significantly reducing their effec-
tiveness. It may not be possible to stop the 
vehicle in sufficient time to avoid an acci-
dent.
!Be very careful not to endanger other 
road users when you apply the brakes.
Refer to the description of the Brake 
Assist System (BAS) (
page 73).
Warning!
G
If other than recommended brake pads are 
installed, or other than recommended brake 
fluid is used, the braking properties of the 
vehicle can be degraded to an extent that 
safe braking is substantially impaired. This 
could result in an accident. 
     
        
        Page 265 of 400

265 Operation
Maintenance
Maintenance
We strongly recommend that you have 
your vehicle serviced by your authorized 
Mercedes-Benz Center, in accordance with 
the Service Booklet at the times called for 
by the FSS (Flexible Service System).
Failure to have the vehicle maintained in 
accordance with the Service Booklet at the 
designated times/mileage called for by 
the FSS may result in vehicle damage not 
covered by the Mercedes-Benz Limited 
Warranty.
FSS will notify you when your next service 
is due.
Approximately one month before your next 
service is due, one of the following 
messages will appear in the multifunction 
display while you are driving or when you 
switch on the ignition (example service A):SERVICE A IN XX DAYS 
SERVICE A IN XX MILES (KM)
SERVICE A DUE NOW!
The type of service due is indicated in the 
multifunction display:
9Minor service (A)
´Major service (B)
Clearing the service indicator
The service indicator is automatically 
cleared
after ten seconds when you switch on 
the ignition or when reaching the 
service threshold while driving
after 30 seconds, once the suggested 
service term has passed
You can also clear it yourself.
Press the reset button on the 
instrument cluster (
page 22).
Service term exceeded
If you have exceeded the suggested 
service term, you will see the following 
message in the multifunction display:SERVICE A EXCEEDED BY XX DAYS 
SERVICE A EXCEEDED BY XX MI (KM)An acoustic signal will also sound.
iThe interval between services depends 
on your driving habits. A gentle driving 
style, moderate engine speeds and the 
avoidance of short-distance trips will 
lengthen the interval between services.