2013 MERCEDES-BENZ M-Class light

Problems with the rear window defroster
Problem Possible causes/consequences and
0001 Solutions
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 or interior lighting.
When the battery is sufficiently charged, the rear window
defroster is activated again automatically. Activating/deactivating air-
recirculation mode
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. You can deactivate the flow of fresh air if
unpleasant odors are enteringt
he vehicle
from outside. The air already inside the
vehicle will then be recirculated.
The operation of air-recirculation mode is the
same for all control panels.
X Turn the SmartKey to position 2in the
ignition lock (Y page 157).
X To activate: press the0016button.
The indicator lamp in the 0016button lights
up.
i In the event of high pollution levels (3-
zone automatic climate control only) or at
high outside temperatures, air-
recirculation mode is automatically
activated. When air-recirculation mode is activated automatically, the indicator lamp
in the
0016button is not lit.
Outside air is added after about
30 minutes.
X To deactivate: press the0016button.
The indicator lamp in the 0016button 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
The "residual heat" function is only available
in Canada. 150
Operating the climate control systemsClimate control

It is possible to make use of the residual heat
of the engine to continue heating the
stationary vehicle for up to 30 minutes after
the engine has been switched off. The heating
time depends on the temperature that has
been set.
X To activate: press the0003/0005 button.
The indicator lamp in the 0003/0005
button lights up.
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
mediums peed.
X To deactivate: press the0003/0005
button.
The indicator lamp in the 0003/0005
button 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
R when the auxiliary heating is activated 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, redirec
tthe 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 grille on the hood and in
the engine compartment on the front-
passenger side free of blockages, such as
ice, snow or leaves.
R never cover the air vents or air intake grilles
in the vehicle interior.
i For virtually draft-free ventilation, adjust
the sliders of the air vents to the center
position. Setting the center air vents
0002
Center air vent, left
0003 Center air vent, right
001F Center vent thumbwheel, right
001E Center vent thumbwheel, left
X To open/close: turn thumbwheels 001F
and 001Eto the right or left. Setting the air vents
151Climate control Z

Wear suitable footwear to ensure correct
usage of the pedals.
G
WARNING
If you switch off the ignition while driving,
safety-relevant functions are only available
with limitations, or not at all. This could affect,
for example, the power steering and the brake
boosting effect .You will require considerably
more effort to steer and brake. There is a risk
of an accident.
Do not switch off the ignition while driving. G
WARNING
If the parking brake has not been fully
released when driving, the parking brake can:
R overheat and cause a fire
R lose its hold function.
There is a risk of fire and an accident .Release
the parking brake fully before driving off.
! Warm up the engine quickly. Do not use
the engine's full performance until it has
reached operating temperature.
Only shift the automatic transmission to
the desired drive position when the vehicle
is stationary.
Where possible, avoid spinning the drive
wheels when pulling away on slippery
roads. You could otherwise damage the
drive train.
! AMG vehicles: at low engine oil
temperatures below 68 ‡(+20 †), the
maximu mengine speed is restricted in
order to protect the engine .To protec tthe
engine and maintain smooth engine
operation, avoid driving at full throttle when
the engine is cold. Key positions
SmartKey 000E
To remove the SmartKey
0005 Power supply for some consumers, such
as the windshield wipers
0006 Ignition (power supply for all consumers)
and drive position
0007 To start the engine
As soon as the ignition is switched on, all the
indicator lamps in the instrumentc luster light
up. If an indicator lamp does not go out after
starting the engine or lights up while driving,
see (Y page 318).
If the SmartKey is in position 0in the ignition
lock for an extended period of time, it can no
longer be turned in the ignition lock .The
steering is then locked. To unlock, remove the
SmartKey and reinsert it into the ignition lock.
The steering is locked when you remove the
SmartKey from the ignition lock.
X Remove the SmartKey when the engine is
switched off.
The starter battery could otherwise be
discharged.
If you cannot turn the SmartKey in the ignition
lock, the starter battery may not be charged
sufficiently.
X Check the starter battery and recharge if
necessary (Y page 387).
or
X Jump-start the vehicle (Y page 389). Driving
157Driving and parking Z

i
The SmartKey can be turned in the
ignition lock even if it is not the correct
SmartKey for the vehicle. The ignition is not
switched on. The engine cannot be started.
KEYLESS-GO General notes
R
Do not keep the KEYLESS-GO key:
-with electronic devices, e.g. a mobile
phone or another SmartKey
- with metallic objects, e.g. coins or metal
foil
- inside metallic objects, e.g. a metal case
This can impair the functionality of the
KEYLESS-GO key.
Do not keep the KEYLESS-GO key in the
temperature-controlled cup holder
(Y page 344). Otherwise, the KEYLESS-GO
key will not be recognized.
Vehicles with KEYLESS-GO are equipped with
aS martKey featuring an integrated KEYLESS-
GO function and a detachable Start/Stop
button.
The Start/Stop button must be inserted in the
ignition lock and the SmartKey with the
integrated KEYLESS-GO function must be in
the vehicle.
Pressing the Start/Stop button several times
in succession corresponds to the different
key positions in the ignitio nlock. This is only
the case if you are not depressing the brake
pedal.
If you depress the brake pedal and press the
Start/Stop button, the engine starts
immediately.
The Start/Stop button can be removed from
the ignition lock. Then, you can insert the
SmartKey into the ignition lock.
i You do not have to remove the Start/Stop
button from the ignition lock when you
leave the vehicle. You should, however,
always take the SmartKey with you when
leaving the vehicle. As long as the
SmartKey is in the vehicle: R
the vehicle can be started using the
Start/Stop button and
R electrically powered equipment can be
operated.
i The engine can be turned off while the
vehicle is in motion by pressing and holding
the Start/Stop button for approximately
three seconds. This function operates
independently of the ECO start/stop
automatic engine switch-off function.
Key positions with KEYLESS-GO As soon as the ignition is switched on, all the
indicator lamps in the instrument cluster light
up. If an indicator lamp does not go out after
starting the engine or lights up while driving,
see (Y
page 318).
X Insert Start/Stop button 0002into ignition
lock 0003.
i When you insert Start/Stop button 0002
into ignition lock 0003, the system needs
approximately two seconds recognition
time. You can then use Start/Stop
button 0002.
Activating power supply
X If Start/Stop button 0002has not yet been
pressed, this corresponds to the SmartKey
being removed from the ignition.
X Press Start/Stop button 0002once.
The power supply is switched on. You can
now activate the windshield wipers, for
example. 158
DrivingDriving and parking

(Y
page 157) and release it as soon as the
engine is running.
X To start adiesel engine: turn the
SmartKey to position 2in the ignition lock
(Y page 157).
The 0010 preglow indicator lamp in the
instrumen tcluster lights up.
X When the 0010preglow indicator lamp
goes out, tur nthe SmartKey to position
3(Y page 157) and release it as soon as the
engine is running.
i You can start the engine without preglow
if the engine is warm.
Using KEYLESS-GO to startt he engineX
Depress the brake pedal and keep it
depressed.
X To start agasoline engine: press the
Start/Stop button (Y page 158) once.
The engine starts.
X To start adiesel engine: press the Start/
Stop button (Y page 158) once.
Preglow is activated and the engine starts.
i The Start/Stop button can be used to
star tthe vehicle without inserting the
SmartKey into the ignition lock. The Start/
Stop button must be inserted in the ignition
lock and the SmartKey must be in the
vehicle. This mode for starting the engine
operates independently of the ECO start/
stop automatic engine start function. Pulling away
Automatic transmission G
WARNING
If the engine speed is above the idling speed
and you engage transmission position Dor
R, the vehicle could pull away suddenly. There
is a risk of an accident.
When engaging transmission position Dor R,
always firmly depress the brake pedal and do
not simultaneously accelerate. X
Depress the brake pedal and keep it
depressed.
X Shift the transmission to position Dor
R(Y page 165).
X Release the brake pedal.
X Carefully depress the accelerator pedal.
The electric parking brake (Y page 180) is
automatically released.
The red 0008(USA only) or 000D(Canada
only) indicator lamp in the instrument
cluster goes out.
i It is only possible to shift the transmission
from position Pto the desired position if
you depress the brake pedal. Only then is
the parking lock released. If you do not
depress the brake pedal, you can move the
DIRECT SELECT lever but the parking lock
remains engaged.
i The vehicle locks centrally once you have
pulled away.T he locking knobs in the doors
drop down.
You can open the doors from the inside at
any time.
You can also deactivate the automatic
locking feature (Y page 276).
i Upshifts take place at higher engine
speeds after a cold start. This helps the
catalytic converter to reach its operating
temperature more quickly.
Pulling away with a trailer 160
DrivingDriving and parking

i
Shifting the transmissio nto 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 0013symbol reappears in
green in the multifunction display.
Deactivating/activating the ECO start/
stop function ECO button
Deactivating (except for AMG vehicles)
X
Press button 0002.
Indicator lamp 0003on button 0002and the
0013 symbol in the multifunction display go
out.
Activating (except for AMG vehicles)
X Press button 0002.
Indicator lamp 0003on button 0002lights up. If
all conditions for automatic engine switch-
off (Y page 162) are fulfilled, the 0013
symbol is shown in green in the
multifunction display.
If not all conditions for automatic engine
switch-off are fulfilled, the
(Y page 162) 0013symbol is shown in
yellow in the multifunction display .Ifthis is
the case, the ECO start/stop function is not
available. Deactivating (AMG vehicles)
X
Press button 0002in drive program C.
or
X Switch to drive program Sor M
(Y page 169).
Indicator lamp 0003on button 0002and the
0013 symbol in the multifunction display go
out.
The Stop/Start active or
Stop/Start inactive message in the AMG menu in the
multifunction display goes out.
Activating (AMG vehicles)
X Press button 0002.
Indicator lamp 0003on button 0002lights up.
If drive program Sor Mis active, the
automatic transmission switches to drive
program C.
If all conditions for automatic engine
switch-off (Y page 162) are fulfilled, the
0013 symbol is shown in green in the
multifunction display. In addition, the
Stop/Start active message is shown in
the AMG menu in the multifunction display.
If conditions for automatic engine switch-
off (Y page 162) have not been fulfilled , the
0013 symbol will be shown in yellow. If this
is the case, the ECO start/stop function is
not available. In addition, the Stop/Start inactive message is shown in the AMG
menu in the multifunction display.
i If indicator lamp 0003on button 0002is off,
the ECO start/stop function has been
deactivated manually or as the result of a
malfunction. The engine will then not be
switched off automatically when the
vehicle stops. Driving
163Driving and parking Z

Problems with the engine
Problem Possible causes/consequences and
0001 Solutions
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 Try to start the engine again (Y page 159). 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 389).
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. 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 367). Observe the warning
notes as you do so and add coolant if necessary. 164
DrivingDriving and parking

The position of the fuel filler cap is displayed
0012 in the instrument cluster. The arrow
next to the filling pump indicates the side of
the vehicle.
Opening X
Switch the engine off.
X Remove the SmartKey from the ignition
lock.
X KEYLESS-GO: open the driver’s door.
This corresponds to key position 0: "key
removed".
The driver’s door can be closed again.
X Press the fuel filler flap in the direction of
arrow 0002.
The fuel filler flap swings up.
X Turn the fuel filler flap counter-clockwise
and remove it.
X Insert the fuel filler cap into the holder
bracket on the inside of filler flap 0003.
X Completely insert the filler neck of the fuel
pump nozzle into the tank, attach and
refuel.
X Only fill the tank until the pump nozzle
switches off.
i Do not add any more fuel after the pump
stops filling for the first time. Otherwise,
fuel may leak out.
Closing X
Replace the cap on the filler neck and turn
clockwise until it engages audibly.
X Close the fuel filler flap.
i Close the fuel filler flap before locking the
vehicle.
i If you are driving with the fuel filler cap
open, the 0012reserve fuel warning lamp
flashes.
In addition, the 0010Check Engine warning
lamp may light up (Y page 325).
Am essage appears in the multifunction
display ( Ypage 301). For further information on warning and
indicator lamps in the instrument cluster,
see (Y
page 325). Refueling
175Driving and parking Z