Page 114 of 442

114 Controls in detailSeatsSwitching seat heating off
Press button1 repeatedly until all in-
dicator lamps go out.
Seat ventilation*
The switch is located on the center con-
sole. Seat ventilation can be activated
manually with the ignition on, or by the
summer opening feature (
page 199).
The blue indicator lamps on the switch
show the ventilation level selected:
1Seat ventilation switch
Make sure the ignition has been
switched on.
All lights in the instrument cluster
come on.
iThe seat heating will be automatically
switched off after approximately
20 minutes.!If one or more of the lamps on the seat
heater switch are flashing, there is in-
sufficient voltage available since too
many electrical consumers are turned
on. The seat heater switches off auto-
matically.
The seat heater will switch back on
again automatically as soon as suffi-
cient voltage is available.
Level3
Three indicator lamps lit
2
Two indicator lamps lit
1
One indicator lamp lit
off
No indicator lamp lit
Page 123 of 442
123 Controls in detail
Lighting
Combination switch
The combination switch is located on the
left side of the steering column.
1High beam
2High beam flasher
Switching on high beams
Turn exterior lamp switch to
positionB (
page 119).
Push the combination switch in
direction1.
The high beam indicatorA on the
instrument cluster is illuminated
(page 22).
High beam flasher
Pull the combination switch briefly in
direction2.
Hazard warning flasher
The hazard warning flasher can be activat-
ed with the ignition switched on or off. It is
activated automatically when an airbag is
deployed.
The switch is located on the center con-
sole.1Hazard warning flasher switch
Page 126 of 442

126 Controls in detailInstrument cluster
Instrument clusterA full view illustration of the instrument
cluster can be found in the “At a glance”
section of this manual (
page 22).
The instrument cluster is activated when
you
open a door
turn on the ignition
press the reset button (
page 22)
switch on the exterior lamps
You can change the instrument cluster set-
tings in the instrument cluster submenu of
the control system (
page 141).
Instrument cluster illumination
Use the reset button (
page 22) to adjust
the illumination brightness for the instru-
ment cluster.To brighten illumination
Turn the reset button in the instrument
cluster clockwise (
page 22).
The instrument cluster illumination will
brighten.
To dim illumination
Turn the reset button in the instrument
cluster counterclockwise (
page 22).
The instrument cluster illumination will
dim.
iThe instrument cluster illumination is
dimmed or brightened automatically to
suit ambient light conditions.
The instrument cluster illumination will
also be adjusted automatically when
you switch on the vehicle’s exterior
lamps.
Page 127 of 442

127 Controls in detail
Instrument cluster
Coolant temperature gauge
During severe operating conditions, e. g.
stop-and-go traffic, the coolant tempera-
ture may rise close to 248°F (120°C).
The engine should not be operated with
the coolant temperature above 248°F
(120°C). Doing so may cause serious en-
gine damage which is not covered by the
Mercedes-Benz Limited Warranty.
Trip odometer
Make sure you are viewing the trip odome-
ter display (
page 129).
If it is not displayed, press the è or
ÿ repeatedly until the trip odome-
ter appears.
Press and hold the reset button on the
instrument cluster (
page 22) until
the trip odometer is reset.
Warning!
G
Driving when your engine is overheated
can cause some fluids which may have
leaked into the engine compartment to
catch fire. You could be seriously
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 trigger
a warning in the multifunction display
(page 314).
Page 128 of 442

128 Controls in detailInstrument clusterTachometer
The red marking on the tachometer de-
notes excessive engine speed.
To help protect the engine, the fuel supply
is interrupted if the engine is operated
within the red marking.
E 55 AMG
The tachometer of the E 55 AMG does not
have a red marking denoting excessive en-
gine speed.
To help protect the engine, the fuel supply
is interrupted if the engine is operated at
an excessive engine speed.
Outside temperature indicator
The outside temperature is displayed in
the instrument cluster (
page 22). For in-
formation on how to select the unit of the
displayed temperature, i.e. degrees Cel-
sius (°C) or degrees Fahrenheit (°F), see
“Selecting temperature display mode”
(
page 141).The temperature sensor is located in the
front bumper area. Due to its location, the
sensor can be affected by road or engine
heat during idling or slow driving. This
means that the accuracy of the displayed
temperature can only be verified by com-
parison to a thermometer placed next to
the sensor, not by comparison to external
displays (e.g. bank signs etc.).
When moving the vehicle into colder ambi-
ent temperatures (e.g. when leaving your
garage), you will notice a delay before the
lower temperature is displayed.
A delay also occurs when ambient temper-
atures rise. This prevents inaccurate tem-
perature indications caused by heat
radiated from the engine during idling or
slow driving.
!Avoid driving at excessive engine
speeds, as it may result in serious en-
gine damage that is not covered by the
Mercedes-Benz Limited Warranty.
Warning!
G
The outside temperature indicator is not de-
signed to serve as an ice-warning device and
is therefore unsuitable for that purpose.
Indicated temperatures just above the freez-
ing point do not guarantee that the road sur-
face is free of ice. The road may still be icy,
especially in wooded areas or on bridges.
Page 129 of 442

129 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
1Segment ring
2Standard display
3Trip odometer
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, se-
lecting features through the multifunction
steering wheel should only be done by the
driver when traffic and road conditions per-
mit 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 (approximate-
ly 13.5 m) every second.
Page 138 of 442

138 Controls in detailControl system
Press buttonk orj.
The stored messages will now be dis-
played in order. See the “Practical
hints” section for malfunction and
warning messages (
page 318).
Should any malfunctions occur while driv-
ing, the number of malfunctions will reap-
pear in the display when the SmartKey in
the starter switch is turned to position0 or
removed from the starter switch.
Settings menu
In the
Settings
menu there are two func-
tions:
The function
To reset: Press reset
button for 3 seconds
, with which you
can reset all the settings to the original
factory settings.
A collection of submenus with which
you can make individual settings for
your vehicle.
Press buttonè orÿ repeatedly
until the
Settings
menu is seen in the
display.Resetting all settings
You can reset all the functions of all sub-
menus to the factory settings.
Press the reset button in the instru-
ment cluster (
page 22) for approxi-
mately three seconds.
In the display you will see the request
to press the reset button again to con-
firm.
Press the reset button again.
The functions of all the submenus will
reset to factory settings.
iThe message memory will be cleared
when you turn the SmartKey in the
starter switch to position1 or2. You
will then only see high priority malfunc-
tions. These are highlighted by red
background (
page 318).
iThe settings you have changed will not
be reset unless you confirm the action
by pressing the reset button a second
time.
Page 139 of 442
139 Controls in detail
Control system
Submenus in the Settings menu
Press buttonk orj.
In the display you see the collection of
the submenus.
Press buttonç.
The selection marker moves to the next
submenu.The submenus are arranged by hierarchy.
Scroll down with theç button, scroll up
with theæ button.
Move within the submenus with thek
orj button to the individual functions.
The settings themselves are made with
buttonæ orç.Resetting the functions of a submenu
For each submenu you can reset all the
functions to the factory settings.
Move to a function in the submenu.
Press the reset button (
page 22) in
the instrument cluster for approximate-
ly three seconds.
In the display you will see the request
to press the reset button again to con-
firm.
Press the reset button again.
All functions of the submenu will reset
to factory settings.