Page 126 of 498

124 Controls in detailLightingFor information on how to switch on the 
headlamps and use the turn signals, see 
“Switching on headlamps” (
page 50) 
and “Turn signals” (
page 51).
Exterior lamp switch
The exterior lamp switch is located on the 
dashboard to the left of the steering wheel.Exterior lamp switch
MOff
Daytime running lamp mode 
(
page 155)
UAutomatic headlamp mode
Daytime running lamp mode 
(page 155)
CParking lamps (also tail lamps, 
license plate lamps, side marker 
lamps, instrument panel lamps)
BLow beam headlamps (or high 
beam headlamps when the combi-
nation switch is pushed forward) 
and parking lamps
ˆStanding lamps, right (turn left one 
stop)
‚Standing lamps, left (turn left two 
stops)
‡Indicator lamp for front fog lamps
†Indicator lamp for rear fog lamp
iIf you drive in countries where vehicles 
drive on the other side of the road than 
the country in which the vehicle is reg-
istered, you must have the headlamps 
modified for symmetrical low beams. 
Relevant information can be obtained 
at your authorized Mercedes-Benz 
Center 
     
        
        Page 132 of 498

130 Controls in detailLightingCornering fog lamps* (CLK 320 with Bi-Xenon* headlamps)
The cornering fog lamps improve illumina-
tion of the road into which you are turning.
Cornering fog lamps will operate with the 
engine running and with
the exterior lamp switch in 
positionB (
page 124)
or
the exterior lamp switch in 
positionU (
page 124)
or
the daytime running lamp mode 
activated (
page 126)Driving forward
Switching on cornering fog lamps
Depending on whether you are turning 
left or right, switch on the left or right 
turn signal (
page 51).
The respective front fog lamp comes on 
and illuminates the road into which you 
are turning.Switching off cornering fog lamps
The combination switch for the turn signal 
resets automatically after major steering 
wheel movements. This will switch off the 
cornering fog lamps if they where 
activated by switching on the left or right 
turn signal.
If the turn signal should stay on after mak-
ing the turn, the turn signal and cornering 
fog lamps can be switched off by returning 
the combination switch to its original 
position.
iCornering fog lamps will only come on 
in low ambient lighting conditions.
The cornering fog lamps function is not 
available at a vehicle speed above 
25 mph (40 km/h).
iThe cornering fog lamps will come on 
automatically depending on the 
steering angle, even if you did not 
switch on either turn signal.
If the cornering fog lamps came on 
automatically, they will also go out au-
tomatically depending on the steering 
angle. 
     
        
        Page 137 of 498

135 Controls in detail
Instrument cluster
Coolant temperature indicator
The coolant temperature indicator is on 
the right side in the instrument cluster 
(page 24).
During severe operating conditions, e.g. 
stop-and-go traffic, the coolant tempera-
ture may rise close to 120°C.
The engine should not be operated with 
the coolant temperature above 120°C. 
Doing so may cause serious engine 
damage which is not covered by the 
Mercedes-Benz Limited Warranty.
Trip odometer
Make sure you are viewing the stan-
dard display in the multifunction dis-
play (
page 142).
If it is not displayed, press buttonè 
orÿ on the multifunction steering 
wheel repeatedly until the standard dis-
play appears (
page 138).
Press and hold reset button on the in-
strument cluster (
page 134) until the 
trip odometer is reset.
Warning!
G
Driving when your engine is badly over-
heated can cause some fluids which 
may have leaked into the engine com-
partment to catch fire. You could be se-
riously burned.
Steam from an overheated engine can 
cause serious burns and can occur just 
by opening the hood. Stay away from 
the engine if you see or hear steam com-
ing from it.
Turn off the engine, get out of the vehicle 
and do not stand near the vehicle until the 
engine has cooled down.
iExcessive coolant temperature triggers 
a warning in the multifunction display 
(page 376) and the red coolant warn-
ing lamp in the instrument cluster 
comes on (
page 357). 
     
        
        Page 139 of 498

137 Controls in detail
Control system
Control system
The control system is activated as soon as 
the SmartKey in the starter switch is 
turned to position1 or as soon as the 
KEYLESS-GO* start/stop button is in 
position1. The control system enables you 
to
call up information about your vehicle
change vehicle settings
For example, you can use the control sys-
tem to find out when your vehicle is next 
due for service, to set the language for 
messages in the instrument cluster dis-
play, and much more.
The control system relays information to 
the multifunction display.
Multifunction display
1Outside temperature
2Trip odometer
3Automatic transmission program mode
4Main odometer
5Current gear selector lever position
For more information on menus displayed 
in the multifunction display, see “Menus” 
(page 140).
iThe displays for the audio systems (ra-
dio, CD player) will appear in English, 
regardless of the language selected.
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, 
selecting features through the multifunction 
steering wheel should only be done by the 
driver when traffic and road conditions 
permit it to be done safely.
Bear in mind that at a speed of just 30 mph 
(approximately 50 km/h), your vehicle is 
covering a distance of 44 feet (approxi-
mately 14 m) every second. 
     
        
        Page 140 of 498

138 Controls in detailControl systemMultifunction steering wheel
The displays in the multifunction display 
and the settings in the control system are 
controlled by the buttons on the multifunc-
tion steering wheel (
page 26).Pressing any of the buttons on the multi-
function steering wheel will alter what is 
shown in the multifunction display.
The information available in the multifunc-
tion display is arranged in menus, each 
containing a number of functions or sub-
menus.
The individual functions are then found 
within the relevant menu (radio or CD op-
erations under 
Audio
, for example). These 
functions serve to call up relevant informa-
tion or to customize the settings for your 
vehicle.
1
Multifunction displayOperating the control system
2
Selecting the submenu or setting 
the volume:
Press buttonæup / to increaseçdown / to decrease
3
Telephone*:
Press buttonsto take a calltto end a call
4
Menu systems:
Press buttonèfor next menuÿfor previous menu
5
Moving within a menu:
Press buttonjfor next displaykfor previous display 
     
        
        Page 161 of 498

159 Controls in detail
Control system
Activating easy-entry/exit feature
Use this function to activate and deacti-
vate the easy-entry/exit feature. 
Move the selection marker with 
buttonæ orç to the
 
Convenience
 submenu.
Press buttonj ork repeatedly 
until the message 
Function 
Easy-entry feature appears in the 
multifunction display.
The selection marker is on the current 
setting.
Press buttonæ orç to change 
the easy-entry/exit setting.The following settings are available for the 
easy-entry/exit feature:
Warning!
G
You must make sure no one can become 
trapped or injured by the moving steering 
wheel and the driver’s seat when the 
easy-entry/exit feature is activated.
To cancel seat/steering wheel movement, 
do one of the following:
Press seat adjustment switch 
(page 38).
Move steering column stalk 
(page 40).
Press memory position switch 
(page 122).
Do not leave children unattended in the ve-
hicle, or with access to an unlocked vehicle. 
Children could open the driver’s door and 
unintentionally activate the easy-entry/exit 
feature, which could result in an accident 
and/or serious personal injury.
off
The easy-entry/ex-
it feature is deacti-
vated.
Steering col.
Only the steering 
column is moved.
Steer. col. + seat
Both the steering 
column and the 
seat are moved. 
     
        
        Page 162 of 498

160 Controls in detailControl systemSetting key-dependency
Use this function to set whether the 
memory settings for the seats, the steering 
wheel and the mirrors should be stored 
separately for each SmartKey 
(page 121).
Move the selection marker with 
buttonæ orç to the Convenience
 submenu.
Press buttonj ork repeatedly 
until the message 
Key-dependent
 
appears in the multifunction display.
The selection marker is on the current 
setting.
Press buttonæ orç to set 
key-dependency to 
on or 
off
. Setting parking position for exterior rear 
view mirror
Use the 
Mirror adjustment parking aid
 
function to select whether the passen-
ger-side exterior rear view mirror should be 
turned downward during parking maneu-
vers, when reverse gearR is engaged. For 
additional information, see “Activating ex-
terior rear view mirror parking position” 
(
page 180).
Move the selection marker with 
buttonæ orç to the Convenience
 submenu.
Press buttonj ork repeatedly 
until the message 
Mirror adjustment 
parking aid
 appears in the multifunc-
tion display.
The selection marker is on the current 
setting.
Press buttonæ orç to switch 
function 
on or 
off
.
Trip computer menu
Use the trip computer menu to call up sta-
tistical data on your vehicle.
The following information is available:Function
Page
Fuel consumption statistics after 
start
161
Fuel consumption statistics 
since last reset
161
Call up range (distance to empty)
162 
     
        
        Page 164 of 498

162 Controls in detailControl systemCall up range (distance to empty)
Press buttonÿ orè repeatedly 
until the first function of the Trip com-
puter menu appears in the 
multifunction display.
Press buttonj ork repeatedly 
until the message 
Range
 appears in the 
multifunction display.
The calculated range based on the 
current fuel tank level appears in the 
multifunction display.
TEL menu*
You can use the functions in the 
Tel
 menu 
to operate your telephone, provided it is 
connected to a hands-free system and 
switched on.
Switch on the telephone and Audio or 
COMAND*.
Press buttonÿ orè on the 
steering wheel repeatedly until the 
message 
Tel
 appears in the 
multifunction display.
Warning!
G
A driver’s attention to the road 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 tele-
phone when weather, road and traffic 
conditions permit.
Some jurisdictions prohibit the driver from 
using a cellular telephone while driving a 
vehicle.
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.
Never operate radio transmitters equipped 
with a built-in or attached antenna (i.e. with-
out being connected to an external antenna) 
from inside the vehicle while the engine is 
running. Doing so could lead to a malfunc-
tion of the vehicle’s electronic system, 
possibly resulting in an accident and /or 
personal injury.