Page 135 of 417
134 Controls in detail
Control system
i
The settings you have changed will not 
be reset unless you confirm the action 
by pressing the reset button a second 
time. Approximately five seconds after 
pressing the reset button for the sec-
ond time, the 
SETTINGS... menu reap-
pears in the display.
 
     
        
        Page 140 of 417

139 Controls in detail
Control system
The selection marker is on the current 
setting.
Pressæ orç to select manual 
operation or daytime running lamp 
mode (constant) activated.
With daytime running lamp mode activated 
and the exterior lamp switch in 
positionMorU, the low beam 
headlamps are switched on when the en-
gine is running.In low ambient light conditions the follow-
ing lamps will switch on additionally:
Parking lamps
Tail lamps
License plate lamps
Side marker lamps
For more information on the daytime run-
ning lamp mode, see “Lighting” 
(
page 110).Setting locator lighting
With the locator lighting feature activated 
and the exterior lamp switch in position 
U, the following lamps will switch on 
during darkness when the vehicle is un-
locked with the SmartKey:
Parking lamps
Tail lamps
License plate lamps
Side marker lamps
Front fog lamps
The locator lighting switches off when the 
driver’s door is opened.
If you do not open a door after unlocking 
the vehicle with the SmartKey, the lamps 
will switch off automatically after approxi-
mately 40 seconds.i
For safety reasons, resetting the 
LIGHTING submenu to factory settings 
while driving (
page 132) will not de-
activate the daytime running lamp 
mode.
The following message appears in the 
multifunction display:
LIGHTING – CANNOT BE TOTALLY RESET 
TO FACTORY SETTINGS WHILE DRIVING 
     
        
        Page 145 of 417

144 Controls in detail
Control system
Setting key-dependency
Use this function to set whether the mem-
ory settings for the seats, the steering 
wheel and the exterior mirrors should be 
stored separately for each SmartKey 
(
page 107).
Move the selection marker with 
theæ orç button to the 
CONVENIENCE submenu.
Press buttonj ork repeatedly 
until you see this message in the dis-
play: 
SETTINGS KEY-DEPENDENT.
The selection marker is on the current 
setting.
Pressæ orç to set key depen-
dency to 
ON or OFF. Setting parking position for exterior rear 
view mirror
Use the 
MIRROR SETTING WHEN PARKING 
function to select whether the passen-
ger-side exterior rear view mirror should be 
turned downward during parking maneu-
vers when reverse gear is engaged. For 
more information, see “Activating exterior 
rear view mirror parking position” 
(
page 164).
Move the selection marker with 
theæ orç button to the 
CONVENIENCE submenu.
Press buttonj ork repeatedly 
until you see this message in the dis-
play: 
MIRROR SETTING WHEN PARKING.
The selection marker is on the current 
setting.
Pressæ orç to switch function 
ON or OFF.
i
For safety reasons, resetting the 
SETTINGS KEY-DEPENDENT submenu to 
factory settings will not reset while 
driving.
In the display you will then see the mes-
sage: 
CONVENIENCE – CANNOT BE 
TOTALLY RESET TO FACTORY SETTINGS 
WHILE DRIVING
. 
     
        
        Page 146 of 417

145 Controls in detail
Control system
Trip computer menu
Use the trip computer menu to call up 
statistical data on your vehicle. The follow-
ing information is available: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 multi-
function display: 
AFTER START.
1Time elapsed since start
2Average fuel consumption since start
3Average speed since start
4Distance driven 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 dis-
play: 
AFTER RESET.
1Time elapsed since last reset
2Average fuel consumption since last 
reset
3Average speed since last reset
4Distance driven since last reset
FunctionPage
Fuel consumption statistics after 
start145
Fuel consumption statistics 
since last reset145
Call up range (distance to empty)146
 
     
        
        Page 147 of 417

146 Controls in detail
Control system
Resetting 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 120) until 
the value is reset to 
0.Calling up range (distance to empty)
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 dis-
play: 
RANGE.
In the display you will see the calculat-
ed range based on the current fuel tank 
level.
TEL menui
All statistics stored since the last en-
gine 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 position1or2 with-
in this time period.
Warning!G
A driver’s attention to the road and traffic 
conditions must always be his/her primary 
focus when driving. For your safety and the 
safety of others, we recommend that you 
pull over to a safe location and stop before 
placing or taking a telephone call. If you 
choose to use the telephone while driving, 
please use the hands-free device and only 
use the telephone when weather, road and 
traffic conditions permit.
Some jurisdictions prohibit the driver from 
using a cellular telephone while driving a ve-
hicle.
Bear in mind that at a speed of just 30 mph 
(approximately 50 km/h), your vehicle is 
covering a distance of 44 feet 
(approximately 14 m) every second.
 
     
        
        Page 182 of 417

181 Controls in detail
Driving systems
Driving systems
The driving systems of your vehicle are de-
scribed on the following pages:
Cruise control, with which the vehicle 
can maintain a preset speed.
Rear Parking Assist*, which assists 
your parking maneuvers.
For information on the BAS, ABS, ESP, 
4-ETS, and EBB driving systems, see “Driv-
ing and safety systems” (
page 80).
Cruise control
Cruise control automatically maintains the 
speed you set for your vehicle.
Use of cruise control is recommended for 
driving at a constant speed for extended 
periods of time. You can set or resume 
cruise control at any speed over 20 mph 
(30 km/h).
The cruise control function is operated by 
means of the cruise control lever.
The cruise control lever is the uppermost 
lever found on the left-hand side of the 
steering column (
page 23).
i
The cruise control should not be acti-
vated during-off road driving.
Warning!G
Cruise control is a convenience system de-
signed to assist the driver during vehicle op-
eration. The driver is and must always 
remain responsible for the vehicle speed 
and for safe brake operation.
Only use cruise control if the road, traffic 
and weather conditions make it advisable to 
travel at a steady speed.
The use of cruise control can be danger-
ous on winding roads or in heavy traffic 
because conditions do not allow safe 
driving at a steady speed.
The use of cruise control can be danger-
ous on slippery roads. Rapid changes in 
tire traction can result in wheel spin and 
loss of control.
Deactivate cruise control when driving 
in fog.
The “Resume” function should only be oper-
ated if the driver is fully aware of the previ-
ously set speed and wishes to resume this 
particular preset speed. 
     
        
        Page 184 of 417

183 Controls in detail
Driving systems
Setting a higher speed
Lift cruise control lever to position1 
and hold it up until the desired speed is 
reached.
Release cruise control lever.
The new speed is set.
Setting a lower speed
Depress cruise control lever to 
position2 and hold it down until the 
desired speed is reached.
Release cruise control lever.
The new speed is set.Fine adjustment in 1 mph 
(Canada: 1 km/h) increments
Faster
Briefly tip cruise control lever in 
direction of arrow1.
Slower
Briefly tip cruise control lever in 
direction of arrow2.Setting to last stored speed 
(“Resume” function)
Briefly push cruise control lever to 
position4.
Cruise control resumes the last set 
speed.
Remove your foot from the accelerator 
pedal.
i
Depressing the accelerator pedal does 
not deactivate cruise control. After 
brief acceleration (e.g. for passing), 
cruise control will resume the last 
speed set.
i
When you use the cruise control lever 
to decelerate, the transmission will au-
tomatically downshift if the engine’s 
braking power does not brake the vehi-
cle sufficiently.
Warning!G
The speed stored in memory should only be 
set again if prevailing road conditions per-
mit. Possible acceleration or deceleration 
differences arising from returning to preset 
speed could endanger yourself and others. 
     
        
        Page 210 of 417

209 Controls in detail
Useful features
Remote door unlock
In case you have locked your vehicle unin-
tentionally (e.g. SmartKey inside vehicle), 
and the reserve key is not handy:
Contact the Mercedes-Benz Response 
Center at 1-800-756-9018 (in the USA) 
or 1-888-923-8367 (in Canada).
You will be asked to provide your pass-
word which you provided when you 
completed the subscriber agreement.
Then return to your vehicle and press 
the tailgate lock for minimum of 
20 seconds until the SOS button is 
flashing.
The message 
EMERGENCY CALL – 
CALL CONNECTED
 appears in the multi-
function display.
As an alternative, you may unlock the vehi-
cle via Internet using the ID and password 
sent to you shortly after the completion of 
your acquaintance call.
!
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.
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When a Tele Aid call has been initiated, 
the COMAND system audio is muted 
and the selected mode (radio or CD) 
pauses. The optional cellular phone (if 
installed) switches off. If you must use 
this phone, the vehicle must be parked. 
Disconnect the coiled cord and place 
the call. The navigation system (if en-
gaged) will continue to run. The display 
in the instrument cluster is available for 
use and spoken commands 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.