2014 MERCEDES-BENZ E-SEDAN battery

The high-beam headlamps are switched off
automatically. The
Kindicator lamp in
the instrument cluster goes out. The _
indicator lamp in the multifunction display
remains lit.
X To switch off: move the combination
switch back to its normal position or move
the light switch to another position.
The _ indicator lamp in the instrument
cluster goes out. Headlamps fogged up on the inside
The headlamps may fog up on the inside if
there is high atmospheric humidity.
X Switch on the light and drive off.
The level of moisture diminishes,
depending on the length of the journey and
the weather conditions (humidity and
temperature).
If the level of moisture does not diminish:
X Have the headlamps checked at a qualified
specialist workshop. Interior lighting
Overview of interior lighting
Front overhead control panel
:
u To switch the rear interior lighting
on/off
; | To switch the automatic interior
lighting control on/off =
p To switch the right-hand front
reading lamp on/off
? c To switch the front interior lighting
on/off
A p To switch the left-hand front reading
lamp on/off Rear-compartment overhead control panel
:
p To switch the right-hand reading
lamp on/off
; p To switch the left-hand reading lamp
on/off Interior lighting control
General notes In order to prevent the vehicle's battery from
discharging, the interior lighting functions are
automatically deactivated after some time
unless the SmartKey is in position
2in the
ignition lock.
The color and brightness of the ambient
lighting can be adjusted using the on-board
computer (Y page 250). Interior lighting
135Lights and windshield wipers Z
ProCarManuals.com

Setting the air distribution
X
Turn the SmartKey to position 2in the
ignition lock (Y page 159).
X Dual-zone automatic climate control: press
air distribution adjustment button Fup or
down, until the desired symbol appears in
the display (Y page 145).
X 3-zone automatic climate control: press air
distribution adjustment button Iup or
down, until the desired symbol appears in
the display (Y page 147). Setting the airflow
Dual-zone automatic climate control X
Turn the SmartKey to position 2in the
ignition lock (Y page 159).
X To increase/reduce: press airflow switch
G up or down (Y page 145).
3-zone automatic climate control X
Turn the SmartKey to position 2in the
ignition lock (Y page 159).
X To increase/reduce front-
compartment airflow: press airflow
switch Hup or down (Y page 147).
X To increase/reduce the rear airflow:
press the KorI switch.
If the battery is not sufficiently charged,
blower output may be reduced. As soon as
the battery is sufficiently charged, full blower
output will be available. Switching the ZONE function on/off
X To activate: press theábutton.
The indicator lamp above the ábutton
lights up.
Dual-zone automatic climate control: the
temperature setting for the driver's side is
not adopted for the front-passenger side. 3-zone automatic climate control: the
temperature setting for the driver's side is
not adopted for the front-passenger side
and the rear compartment.
X To deactivate: press theábutton.
The indicator lamp above the ábutton
goes out.
Dual-zone automatic climate control: the
temperature setting for the driver's side is
adopted for the front-passenger side.
3-zone automatic climate control: the
temperature setting for the driver's side is
adopted for the front-passenger side and
the rear compartment. Defrosting the windshield
You can use this function to defrost the
windshield or to defrost the inside of the
windshield and the side windows.
Switch off the "Windshield defrosting"
function as soon as the windshield is clear
again.
X Turn the SmartKey to position 2in the
ignition lock (Y page 159).
X To activate: press the¬button.
The indicator lamp above the ¬button
lights up.
The climate control system switches to the
following functions:
R high airflow
R high temperature
R air distribution to the windshield and
front side windows
R air-recirculation mode off
If the battery is not sufficiently charged,
blower output may be reduced. Once the
battery is sufficiently charged again, full
blower output will be available again.
X To deactivate: press the¬button.
The indicator lamp above the ¬button
goes out. The previously selected settings 152
Operating the climate control systemsClimate control
ProCarManuals.com

are restored. Air-recirculation mode
remains deactivated.
or
X Press the Ãbutton.
The indicator lamp above the ¬button
goes out. Airflow and air distribution are set
to automatic mode.
or
X Dual-zone automatic climate control: press
temperature selection switch EorH up
or down (Y page 145).
3-zone automatic climate control: press
temperature selection switch ForJ up
or down (Y page 147).
or
X Dual-zone automatic climate control: press
airflow switch Gup or down
(Y page 145).
3-zone automatic climate control: press
airflow switch Hup or down
(Y page 147). MAX COOL maximum cooling
The MAX COOL function is only available in
vehicles for the USA.
MAX COOL is only operational when the
engine is running.
X To activate: press theÙbutton.
The indicator lamp in the button lights up.
X To activate: press off-road button Ù
again.
The indicator lamp goes out. The previously
selected settings are restored.
When you activate MAX COOL, climate
control switches to the following functions:
R maximum cooling
R maximum airflow
R air-recirculation mode on Defrosting the windows
Windows fogged up on the inside X
Activate the ¿cooling with air
dehumidification function.
X Activate automatic mode Ã.
X Adjust the side air vents so that the warmed
air is directed to the side windows.
X If the windows continue to fog up, activate
the ¬ "Windshield defrosting" function.
i You should only select this setting until
the windshield is clear again.
Windows fogged up on the outside X
Dual-zone automatic climate control: press
air distribution adjustment button Fup or
down (Y page 145), until the Por
O symbol appears in the display.
X 3-zone automatic climate control: press air
distribution adjustment button Iup or
down (Y page 147), until the Por
O symbol appears in the display.
X Adjust the side air vents so that no air is
directed to the side windows. Rear window defroster
General notes The rear window defroster has a high current
draw. You should therefore switch it off as
soon as the rear window is clear. Otherwise,
the rear window defroster switches off
automatically after several minutes.
If the battery voltage is too low, the rear
window defroster may switch off.
Activating/deactivating X
Turn the SmartKey to position 2in the
ignition lock (Y page 159).
X Press the ¤button.
The indicator lamp above the ¤button
lights up or goes out. Operating the climate control systems
153Climate control
ProCarManuals.com

Problems with the rear window defroster
Problem Possible causes/consequences and
M
MSolutions The rear window
defroster has
deactivated
prematurely or cannot
be activated. The battery has not been sufficiently charged.
X
Switch off any consumers that are not required, e.g. reading
lamps, interior lighting or the seat heating.
When the battery is sufficiently charged, the rear window
defroster can be activated again. Activating/deactivating air-
recirculation mode
General notes You can deactivate the flow of fresh air if
unpleasant odors are entering the vehicle
from outside. The air already inside the
vehicle will then be recirculated.
If you switch on air-recirculation mode, the
windows can fog up more quickly, in
particular at low temperatures. Only use air-
recirculation mode briefly to prevent the
windows from fogging up.
The operation of air-recirculation mode is the
same for all control panels.
Activating/deactivating X
Turn the SmartKey to position 2in the
ignition lock (Y page 159).
X To activate: press thegbutton.
The indicator lamp above the gbutton
lights up.
i Dual-zone automatic climate control: air-
recirculation mode is automatically
activated at high outside temperatures.
3-zone automatic climate control: air-
recirculation mode is automatically
activated at high levels of pollution or at
high outside temperatures.
When air-recirculation mode is activated
automatically, the indicator lamp above the g
button does not light up. Outside air
is added after about 30 minutes.
X To deactivate: press thegbutton.
The indicator lamp above the gbutton
goes out.
i Air-recirculation mode deactivates
automatically:
R after approximately five minutes at
outside temperatures below
approximately 41 ‡ (5 †)
R after approximately five minutes if
cooling with air dehumidification is
deactivated
R after approximately 30 minutes at
outside temperatures above
approximately 41 ‡(5 †) if the "Cooling
with air dehumidification" function is
activated Activating/deactivating the residual
heat function
General notes The residual heat function is only available in
vehicles for Canada with automatic climate
control.
It is possible to make use of the residual heat
of the engine to continue heating the vehicle
for approximately 30 minutes after the engine
has been switched off. The heating time
depends on the temperature that has been
set. 154
Operating the climate control systemsClimate control
ProCarManuals.com

Activating/deactivating
X
Turn the SmartKey to position 0in the
ignition lock or remove it (Y page 159).
X To activate: press theÌbutton.
The indicator lamp above the Ìbutton
lights up.
i If the residual heat function is activated,
the windows may fog up on the inside.
i The blower will run at a low speed
regardless of the airflow setting.
i If you activate the residual heat function
at high temperatures, only the ventilation
will be activated. The blower runs at
medium speed.
X To deactivate: press theÌbutton.
The indicator lamp above the Ìbutton
goes out.
Residual heat is deactivated automatically:
R after approximately 30 minutes
R when the ignition is switched on
R if the battery voltage drops Setting the air vents
Important safety notes
G
WARNING
Very hot or very cold air can flow from the air
vents. This could result in burns or frostbite in
the immediate vicinity of the air vents. There
is a risk of injury.
Make sure that all vehicle occupants always
maintain a sufficient distance to the air
outlets. If necessary, redirect the airflow to
another area of the vehicle interior. In order to ensure the direct flow of fresh air
through the air vents into the vehicle interior,
please observe the following notes:
R
keep the air inlet between the windshield
and the hood free of blockages, such as ice,
snow or leaves.
R never cover the air vents or air intake grilles
in the vehicle interior. Setting the center air vents
:
Center air vent, left
; Center air vent, right
= Center vent thumbwheel, right
? Center vent thumbwheel, left
X To open/close: turn thumbwheels =
and ?up or down. Setting the side air vents
:
Defroster vent
; Side air vent
= Control for side air vent Setting the air vents
155Climate control Z
ProCarManuals.com

ECO start/stop function
Introduction The ECO start/stop function switches the
engine off automatically if the vehicle is
stopped under certain conditions.
The engine starts automatically when the
driver wants to pull away again. The ECO
start/stop function thereby helps you to
reduce the fuel consumption and emissions
of your vehicle.
Important safety notes G
WARNING
If the engine is switched off automatically and
you exit the vehicle, the engine is restarted
automatically. The vehicle may begin moving.
There is a risk of accident and injury.
If you wish to exit the vehicle, always turn off
the ignition and secure the vehicle against
rolling away.
General notes :
ECO start/stop display
i Hybrid vehicles: observe the notes on
the ECO start/stop function in the
"HYBRID" supplement.
If the ¤ symbol is shown in green in the
multifunction display, the ECO start/stop
function switches the engine off
automatically if the vehicle stops moving.
Every time you switch on the engine using the
SmartKey or the Start/Stop button, the ECO
start/stop function is activated.
If the ECO start/stop function has been
manually deactivated (Y page 164) or a
malfunction has caused the system to be deactivated, the
¤symbol is not
displayed.
AMG vehicles: theStop/Start active Stop/Start active or
Stop/Start inactive Stop/Start inactive message in the AMG
menu in the multifunction display goes out.
AMG vehicles: the ECO start/stop function
is only available in drive program C.
For further information on automatic engine
switch-off (Y page 163) and automatic
engine start (Y page 164).
Automatic engine switch-off General notes
The ECO start/stop function is operational
and the
¤symbol is displayed in green in
the multifunction display, if:
R the indicator lamp in the ECO button is lit
green.
R the outside temperature is within the
comfort range.
R the engine is at normal operating
temperature.
R the set temperature for the vehicle interior
has been reached.
R the battery is sufficiently charged.
R the system detects that the windshield is
not fogged up when the air-conditioning
system is switched on.
R the hood is closed.
R the driver's door is closed and the driver's
seat belt is fastened.
If conditions for automatic engine switch-off
have not been fulfilled, the ¤symbol will
be shown in yellow.
AMG vehicles: the AMG menu in the
multifunction display additionally shows the
Stop/Start inactive Stop/Start inactive message.
i All of the vehicle's systems remain active
when the engine has been stopped
automatically.
i All vehicles (apart from AMG
vehicles): automatic engine switch-off can
take place a maximum of four times Driving
163Driving and parking Z
ProCarManuals.com

consecutively (initial stop then repeated
three times). The ¤symbol is shown in
yellow in the multifunction display after the
engine has been started automatically for
the fourth time. When the ¤symbol is
shown in green in the multifunction display,
automatic engine switch-off is again
possible.
i AMG vehicles: times which the engine
can be automatically switched off.
Vehicles with automatic transmission
If the vehicle is braked to a standstill in Dor
N, the ECO start/stop function switches off
the engine automatically.
i The HOLD function can be activated if the
engine has been switched off
automatically. It is then not necessary to
continue applying the brakes during the
automatic stop phase. When you depress
the accelerator pedal, the engine starts
automatically and the braking effect of the
HOLD function is deactivated.
Automatic engine start General notes
The engine starts automatically if:
R
you switch off the ECO start/stop function
by pressing the ECO button.
R you engage reverse gear R.
R you switch to drive program S,S+ orM
(AMG vehicles).
R the vehicle starts to roll.
R the brake system requires this.
R the temperature in the vehicle interior
deviates from the set range.
R the system detects moisture on the
windshield when the air-conditioning
system is switched on.
R the condition of charge of the battery is too
low.
R the driver's seat belt is removed or the
driver's door is opened. Vehicles with automatic transmission
The engine is started automatically if you:
R release the brake pedal when HOLD is not
activated and the transmission is in
position Dor N.
R depress the accelerator pedal.
R move the transmission out of position P.
i Shifting the transmission to position P
does not start the engine.
i If you shift the transmission from Rto D,
the ECO start/stop function is available
again once the ¤symbol reappears in
green in the multifunction display.
Deactivating/activating the ECO start/
stop function ECO button
X
To switch off (except AMG vehicles):
press button :.
Indicator lamp ;and the ¤symbol in
the multifunction display go out.
X To switch on (except AMG vehicles):
press button :.
Indicator lamp ;lights up. If all conditions
for automatic engine switch-off
(Y page 163) are fulfilled, the ¤symbol
is shown in green in the multifunction
display.
If not all conditions for automatic engine
switch-off ( Ypage 163) are fulfilled, the
¤ symbol is shown in yellow in the
multifunction display. If this is the case, the
ECO start/stop function is not available. 164
DrivingDriving and parking
ProCarManuals.com

Problems with the engine
Problem Possible causes/consequences and
M
MSolutions The engine does not
start. The starter motor
can be heard. R
There is a malfunction in the engine electronics.
R There is a malfunction in the fuel supply.
X Before attempting to start the engine again, turn the SmartKey
in the ignition back to position 0or press the Start/Stop button
repeatedly until all indicator lamps in the instrument cluster go
out.
X Try to start the engine again (Y page 161). Avoid excessively
long and frequent attempts to start the engine as these will drain
the battery.
If the engine does not start after several attempts:
X Consult a qualified specialist workshop. The engine does not
start. You cannot hear
the starter motor. The on-board voltage is too low because the battery is too weak
or discharged.
X
Jump-start the vehicle (Y page 362).
If the engine does not start despite attempts to jump-start it:
X Consult a qualified specialist workshop. The starter motor was exposed to a thermal load that was too high.
X
Allow the starter motor to cool down for approximately two
minutes.
X Try to start the engine again.
If the engine still does not start:
X Consult a qualified specialist workshop. Vehicles with a
gasoline engine:
The engine is not
running smoothly and
is misfiring. There is a malfunction in the engine electronics or in a mechanical
component of the engine management system.
X
Only depress the accelerator pedal slightly.
X Have the cause rectified immediately at a qualified specialist
workshop.
Otherwise, non-combusted fuel may get into the catalytic
converter and damage it. The coolant
temperature gauge
shows a value above
248 ‡ (120 †). The coolant level is too low. The coolant is too hot and the engine
is no longer being cooled sufficiently.
X Stop as soon as possible and allow the engine and the coolant
to cool down.
X Check the coolant level (Y page 339). Observe the warning
notes as you do so and add coolant if necessary. 166
DrivingDriving and parking
ProCarManuals.com