
Problems with the auxiliary heating/ventilation
Display messages Possible causes/consequences and
M Solutions
FAIL The starter battery is not charged sufficiently or the system is
faulty.
X
Charge the starter battery.
X Make another attempt to switch on the auxiliary heating using
the remote control.
X Have the auxiliary heating checked at a qualified specialist
workshop. $
FAIL The signal transmission between the transmitter and the vehicle
is faulty.
X
Change your position in relation to the vehicle, moving closer if
necessary.
X Make another attempt to switch the auxiliary heating on or off
using the remote control. ©
FAIL There is not enough fuel in the fuel tank, or the auxiliary heating
is faulty.
X
Refuel at the nearest filling station.
X Make another attempt to switch on the auxiliary heating using
the remote control.
X Have the auxiliary heating checked at a qualified specialist
workshop. Adjusting the air vents
Important safety notes
G
WARNING
Very hot or very cold air can flow from the air
vents. This could cause burns or frostbite to
bare skin in the immediate vicinity of the
vents. Keep bare skin away from these air
outlets. If necessary, direct the airflow away
to a different 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 windscreen
and the bonnet free of blockages, such as
ice, snow or leaves
R never cover the vents or air inlets in the
vehicle interior.
i For virtually draught-free ventilation,
adjust the sliders of the air vents to the
centre position. Adjusting the air vents
149Climate control Z

Useful information
............................154
Running-in notes ............................... 154
Driving ............................................... 154
Manual transmission ........................163
Automatic transmission ...................164
Refuelling ........................................... 172
Parking ............................................... 176
Driving tips ........................................ 178
Driving systems ................................ 181
Towing atrailer ................................. 221 153Driving and parking

You can also deactivate the automatic lock-
ing feature (Y
page 246).
Automatic transmission i
It is only possible to shift the transmission
fro mp osition Pto the desired position if
you depress the brake pedal. Only then is
the selector lever lock/parking lock
released
X Depress the brake pedal and keep it
depressed.
X Shift the transmission to position Dor R.
X Release the parking brake (Y page 177).
X Release the brake pedal.
X Carefully depress the accelerator pedal.
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 lock-
ing feature (Y page 246).
i Upshifts take place at higher engine
speeds after a cold start. This helps the
catalytic converter to reach its operating
temperature more quickly.
Hill starta ssist Hill start assist helps you when pulling away
forwards or in reverse on an uphill gradient.
It holds the vehicle for a short time after you
have removed your foot from the brake pedal.
This gives you enough time to move your foot
from the brake pedal to the accelerator pedal
and depress it before the vehicle begins to
roll. G
WARNING
Never leave the vehicle when it is held by hill
start assist. After approximately one second,
hill start assist will no longer brake your vehi-
cle and it could roll away. X
Take your foot off the brake pedal.
i Once you have taken your foot off the
brake pedal, the vehicle is held for around
one second.
X Pull away.
Hill start assist will not function if:
R you are pulling away on a level road or a
downhill gradient.
R on vehicles with automatic transmission,
the transmission is in position N.
R the parking brake is applied.
R ESP ®
is malfunctioning. ECO start/stop function
General notes AMG vehicles:
the ECO start/stop function
is only available in drive program C.
The ECO start/stop function switches the
engine off automatically if the vehicle stops
moving.
When pulling away again, the engine starts
automatically. The ECO start/stop function
thereby helps you to reduce the fuel con-
sumption and emissions of your vehicle.
The ECO start/stop function is activated each
time the engine is switched on. If all condi-
tions for automatic engine switch-off are ful-
filled (Y page 159), the ¤symbol is shown
in green in the multifunction display.
AMG vehicles: the AMG menu in the multi-
function display additionally shows Stop/ Start active message .
If not all conditions are fulfilled, the ¤
symbol is shown in yellow.
AMG vehicles: the AMG menu in the multi-
function display additionally shows Stop/ Start inactive message.
If the ECO start/stop function is deactivated
(Y page 160), the ¤symbol is not shown. 158
DrivingDriving and parking

Problems with the engine
Problem Possible causes/consequences and
M Solutions
The engine does not
start. The HOLD function or DISTRONIC PLUS is activated.
X
Deactivate the HOLD function (Y page 194) or DISTRONIC
PLUS (Y page 185).
X Try to start the engine again. 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 key in the
ignition back to position 0or press the Start/Stop button
repeatedly until all indicator lamps in the instrumen tcluster go
out.
X Try to start the engine again (Y page 156). Avoid excessively
long and frequent attempts to start the engine, as this will drain
the battery.
If the engine does not start after several attempts:
X Consult a qualified specialist workshop. The engine does not
start
.The starter motor
can be heard. The
reserve fuel warning
lamp is lit and the fuel
gauge display shows 0. The fuel tank is empty.
X
Refuel the vehicle. 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 354).
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. 162
DrivingDriving and parking

Problem Possible causes/consequences and
M Solutions
Vehicles with a petrol
engine:
The engine is not run-
ning 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.
Otherwise, non-combusted fuel may get into the catalytic con-
verter and damage it.
X Have the cause rectified immediately at a qualified specialist
workshop. The coolant tempera-
ture display is showing
more than 120 †. The
coolant warning lamp
may also be lit and a
warning tone may
sound. 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 324). Observe the warning
notes as you do so and top up the coolant if necessary. If the coolant level is correct, the engine radiator fan may be faulty.
The coolant is too hot and the engine is no longer being cooled
sufficiently.
X If the coolant temperature is less than 120 †, you can continue
driving to the nearest qualified specialist workshop.
X Avoid heavy loads on the engine as you do so, e.g. driving on
mountain roads and stop-start traffic. Manual transmission
Important safety notes
G
WARNING
The movement of the pedals must not be
impaired in any way. Do not keep any objects
in the driver's footwell. Make sure that floor-
mats or carpets are correctly secured and
that there is sufficient clearance for the ped-
als.
Do not place several floormats on top of one
another. G
WARNING
Do not change down for additional engine
braking on a slippery road surface. This could
cause the drive wheels to lose their grip and
the vehicle could skid. This could cause you to lose control of your vehicle and cause an
accident.
Gear lever
Gear lever
!
Only engage gear when the clutch pedal
is depressed. Manual transmission
163Driving and parking Z

S+
SportPlus Extremely sporty driving
style
M
Manual Manual gearshifting
RS
RACE
START Optimal vehicle accelera-
tion from a standstill
i
For further information on the automatic
drive program, see (Y page 169).
X Turn drive program selector :until the
desired drive program appears in the mul-
tifunction display in the speedometer.
The drive program indicator on drive pro-
gram selector :lights up in red.
i The automatic transmission switches to
automatic drive program Ceach time the
engine is started.
i RScannot be selected during normal driv-
ing. For further information on RACE
START, see (Y page 196). Steering wheel gearshift paddles
:
Left-hand steering wheel gearshift paddle
; Right-hand steering wheel gearshift pad-
dle
In the automatic drive program, you can
restrict or derestrict the shift range by using
the steering wheel gearshift paddles or the
selector lever (Y page 169).
In the manual drive program, you can change
gear using the steering wheel gearshift pad-
dles or the selector lever (Y page 170).i
You can only change gear with the steer-
ing wheel gearshift paddles when the trans-
mission is in position D. Automatic drive program
Drive program E(drive program Con AMG
vehicles) is characterised by the following:
R comfort-oriented engine settings.
R optimal fuel consumption resulting from
the automatic transmission shifting up
sooner.
R the vehicle pulling away more gently in
forward and reverse gears, unless the
accelerator pedal is depressed fully.
R increased sensitivity. This improves driving
stability on slippery road surfaces, for
example.
R the automatic transmission shifting up
sooner. This results in the vehicle being
driven at lower engine speeds and the
wheels being less likely to spin.
Drive program S(or, in the case of AMG vehi-
cles, drive programs Sand S+) is character-
ised by the following:
R sporty engine and automatic transmission
settings
R the vehicle pulling away in first gear
R the automatic transmission shifting up
later
R as a result of the later automatic transmis-
sion shift points, the fuel consumption pos-
sibly being higher Shift ranges
Introduction i
OnAMG vehicles andvehicles with
steering wheel gearshift paddles, you
can restrict or derestrict the shift range
using the steering wheel gearshift paddles.
On standard vehicles with aselector
lever , you can also restric torderestrict the
shift range using the selector lever. Automatic transmission
169Driving and parking Z

dles or the selector lever in manual drive pro-
gram Mif the transmission is in position D.
X Press the program selector button
(Y page 168 )repeatedly until Mappears in
the multifunction display.
X AMG vehicles: turn the drive program
selector (Y page 168)u ntilMappears in the
multifunctio ndisplay.
The indicator Mon the drive program selec-
tor lights up in red.
Upshifting X
Briefly press the selector lever to the right
towards D+.
or
X Pull the right-hand steering wheel gearshift
paddle (Y page 169).
The automatic transmission shifts up to the
next gear.
Vehicles with AMG engines
! In manual gearshift program M, the auto-
matic transmission does not shift up auto-
matically even when the engine limiting
speed for the current gear is reached.
When the engine limiting speed is reached,
the fuel supply is cut to prevent the engine
fro mo verrevving. You must make sure that
the engine speed does not reach the red
area of the rev counter. Otherwise, there is
a risk of engine damage.
X Shift up a gearift he colour in the multi-
function display in the speedometer
changes to red and the UP display message
is shown.
Downshifting X
Briefly press the selector lever to the left
towards D–.
or
X Pull the left-hand steering wheel gearshift
paddle (Y page 169).
The automatic transmission shifts down to
the next gear. i
If you desire maximum acceleration, push
the selector lever to the left or pull and hold
the left-hand steering wheel gearshift pad-
dle until the transmission shifts to the opti-
mal gear for the current speed.
Kickdown i
Vehicles with an AMG engine: it is not
possible to use kickdown in manual drive
program M.
You can also use kickdown for maximum
acceleration in manual drive program M.
X Depress the accelerator pedal beyond the
pressure point.
The transmission shifts to a lower gear
depending on the engine speed.
Switching off the manuald rive program X
Standard vehicles with aselector lever
and vehicles with aDIRECT SELECT
lever: press the program selector button
(Y page 168) until Eor Sappears in the
multifunction display.
X AMG vehicles: turn the drive program
selector (Y page 168) until C,Sor S+
appears in the multifunction display. Automatic transmission
171Driving and parking Z

Problems with the transmission
Problem Possible causes/consequences and
M Solutions
The transmission has
problems shifting gear. The transmission is losing oil.
X
Have the transmission checked at a qualified specialist work-
shop immediately. The acceleration ability
is deteriorating.
The transmission no
longer changes gear. The transmission is in emergency mode.
It is only possible to shift into
secondgear and reverse gear.
X Stop.
X Shift the transmission to position P.
X Switch off the engine.
X Wait at least 10seconds before restarting the engine.
X Shift the transmission to position Dor R.
If D is selected, the transmission shifts into secondgear; ifRis
selected, the transmission shifts into reverse gear.
X Have the transmission checked at a qualified specialist work-
shop immediately. Releasing the parking lock manually
i The following description does not apply
to vehicles with a DIRECT SELECT lever and
AMG vehicles.
In the event of an electrical fault, it is possible
to release the selector lever lock manually to
move it out of position P, e.g. if you wish to
tow the vehicle away. X
Apply the parking brake.
X Prise out selector lever gaiter :with a flat,
blunt object, (e.g. ascrewdriver wrapped in cloth) from the right-hand edge, pulling it
up and out.
X Press release button ;dow nand simul-
taneously move the selecto rlever out of
position P.
The selector lever can now be moved freely
until it is returned to position P. Refuelling
Important safety notes
G
WARNING
Fuel is highly flammable. Fire, naked flames
and smoking are therefore prohibited when
handling fuels.
Switch off the engine and the auxiliary heating
before refuelling. G
WARNING
Avoid contact with fuels.
It is hazardous to your health if your skin
comes into direct contact with fuels or you
breathe in fuel vapours. 172
RefuellingDriving and parking