
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 ten seconds 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.
X Apply the parking brake.
X Prise out selector lever gaiter :with a flat,
blunt object (e.g. a screwdriver wrapped in cloth) from the right-hand edge. Pull selec-
tor lever gaiter
:up and out.
X Press release button ;down and simul-
taneously move the selector lever out of
position P.
The selector lever can now be moved freely
until it is returned to position P.
In the event of an electrical fault, it is possible
to release the selector lever lock manually to
move it out of position P. This occurs if the
vehicle is towed away, for example. 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. Refuelling
179Driving and parking Z 

G
WARNING
Avoid contact with fuels.
It is hazardous to yourh ealth if your skin
comes into direct contact with fuels or you
breathe in fuel vapours. G
WARNING
Do not use petrol to refuel a diesel tank .Never
mix diesel with petrol. Doing so could damage
the fuel system and the engine. The vehicle
could also catch fire.
! Do not use petrol to refuel vehicles with a
diesel engine. Do not use diesel to refuel
vehicles with a petrol engine. Even small
amounts of the wrong fuel result in damage
to the fuel system and the engine.
! Do not switch on the ignition if you acci-
dentally refuel with the wrong fuel. Other-
wise, the fuel will enter the fuel lines. Notify
a qualified specialist workshop and have
the fuel tank and fuel lines drained com-
pletely.
! Overfilling the fuel tank could damage the
fuel system.
! Take care not to spill any fuel on painted
surfaces. You could otherwise damage the
paintwork.
! Use a filter when adding fuel from a fuel
can. The fuel lines and/or the diesel injec-
tion system could otherwise be blocked by
particles from the fuel can.
Further information on fuel and on fuel grades
can be found in the "Fuel" section
(Y page 436). Refuelling
Opening/closing the fuel filler flap :
To open the fuel filler flap
; To insert the fuel filler cap
= Tyre pressure table
? Fuel type to be refuelled
The fuel filler flap is unlocked or locked auto-
matically when you open or close the vehicle
with the key or using KEYLESS-GO.
The position of the fuel filler cap is displayed
8 in the instrument cluster. The arrow
nextt o the filling pump indicates the side of
the vehicle.
Opening X
Switch off the engine.
X Remove the key 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 :.
The fuel filler flap opens slightly.
X Open the fuel filler flap fully.
X Turn the fuel filler flap anti-clockwise and
remove it. 180
RefuellingDriving and parking 

X
Saloon: insert the fuel filler cap into the
bracket on the inside of fuel filler flap ;.
or
X Estate: insert the fuel filler cap into the
recesses in the fuel filler flap hinge arm
horizontally from above.
X Completely insert the filler neck of the fuel
pump nozzle into the tank 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 Press the fuel filler flap closed until it
engages audibly.
i Close the fuel filler flap before locking the
vehicle. Otherwise, the locking pin of the
central locking prevents the fuel filler flap
from closing. Fuel filler flap emergency release
X Saloon: open the boot lid. X
Slide the luggage net down.
X Open the right-hand side trim panel.
X Remove the first-aid kit (Y page 360).
X Detach the emergency release from
retainer :. X
Pull the emergency release in the direction
of arrow ;.
The fuel filler flap is released.
X Open the fuel filler flap.
X Estate: open the tailgate. X
Open the right-hand side trim panel.
X Fold down the trim.
X Pull emergency release :in the direction
of the arrow.
The fuel filler flap is released.
X Open the fuel filler flap. Refuelling
181Driving and parking Z 

Problems with the fuel and fuel tank
Problem Possible causes/consequences and
M Solutions
Fuel is leaking from the
vehicle.
G
Risk of explosion or fire
The fuel line or the fuel tank is faulty.
X Turn the key to position 0in the ignition lock immediately and
remove it (Y page 161).
X Do not restart the engine under any circumstances.
X Consult a qualified specialist workshop. The engine does not
start. The fuel tank of a vehicle with a diesel engine has been run com-
pletely dry.
X
Refuel the vehicle with at least 5litres of diesel.
X Turn the ignition on for approximately ten seconds
(Y page 161).
X Start the engine continuously for up to ten seconds until it runs
smoothly.
or
X Start the engine using the touch-star tfunction .To do this, turn
the key to position 3in the ignition lock and then release it
immediately (Y page 161).
If the engine does not start:
X Turn the ignition on again for approximately ten seconds
(Y page 161).
X Start the engine again continuously for up to ten seconds until
it runs smoothly.
or
X Start the engine again via the touch-start function.
If the engine does not start after three attempts:
X Consult a qualified specialist workshop. 182
RefuellingDriving and parking 

Problem Possible causes/consequences and
M Solutions
The fuel filler flap can-
not be opened. The fuel filler flap is not unlocked.
or
The key battery is discharged.
X
Unlock the vehicle using the emergency key element
(Y page 84).
X Open the boot lid or the tailgate.
X Manually unlock the fuel filler flap using the emergency release
(Y page 181). The fuel filler flap is unlocked, but the opening mechanism is jam-
med.
X
Consult a qualified specialist workshop. Parking
Important safety notes
G
WARNING
If flammable materials such as leaves, grass
or twigs are exposed to prolonged contact to
parts of the exhaust system that heat up, they
could ignite. There is a risk of fire.
Park the vehicle so that no flammable mate-
rials come into contact with parts of the vehi-
cle which are hot. Take particular care not to
park on dry grassland or harvested grain
fields. 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.Y ou 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 you leave children unattended in the vehi-
cle, they could set the vehicle in motion by,
for example:
R releasing the parking brake
R shifting an automatic transmission out of
parking position P
R shifting a manual transmission into neutral
R starting the engine
They could also operate vehicle equipment.
There is a risk of an accident and injury.
When leaving the vehicle, always take the key
with you and lock the vehicle. Never leave
children unattended in the vehicle.
! Am oving vehicle can lead to damage to
the vehicle or damage to the drive train.
To ensure that the vehicle is secured against
rolling away unintentionally:
R the parking brake must be applied.
R on vehicles with manual transmission,
engage first gear or reverse gear.
R on vehicles with automatic transmission,
the transmission must be in position Pand
the key must be removed from the ignition
lock.
R on uphill or downhill gradients, the front
wheels must be turned towards the kerb. Parking
183Driving and parking Z 

They could also operate vehicle equipment.
There is a risk of an accident and injury.
When leaving the vehicle, always take the key
with you and lock the vehicle. Never leave
children unattended in the vehicle. When you apply the parking brake to brake
the vehicle, the brake lamps do not light up.
X To apply: depress parking brake ;firmly.
The J indicator lamp in the instrument
cluster lights up if the engine is running.
X To release: depress the brake pedal and
keep it depressed.
X Pull release handle :.
The J indicator lamp in the instrument
cluster goes out. Parking up the vehicle
If you leave the vehicle parked up for longer
than four weeks, the battery may be damaged
by exhaustive discharging.
If you leave the vehicle parked up for longer
than six weeks, the vehicle may suffer dam-
age as a result of lack of use.
X Visit a qualified specialist workshop and
seek advice.
i You can obtain information about trickle
chargers from a qualified specialist work-
shop. Driving tips
General notes
G
WARNING
If you switch off the ignition while driving,
safety-relevan tfunctions are only available
with limitations, or no tatall. 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. ECO display
ECO display (example)
The ECO display gives you information on how
economical your driving style is. The ECO dis-
play assists you in achieving the optimum
driving style in terms of consumption, taking
the actual and selected conditions into con-
sideration. Your driving style can significantly
influence the vehicle's consumption.
The ECO display consists of three bars:
R Acceleration
R Constant
R Coasting
The percent value is the average value of the
three bars. The three bars and the average
value commence with a value of 50%. Ahigher
percentage indicates a mor eeconomical driv-
ing style.
The ECO display provides no information on
the actual fuel consumption. Afixed percent-
age value of the ECO display does not corre-
spond to a fixed consumption figure in
l/100km. Driving tips
185Driving and parking Z 

Apart from driving style, consumption is
dependent on many factors such as:
R load
R tyre pressure
R cold start
R selected route
R numbe rofconsumers that are switched on
These variable are not included in the ECO
display.
Your driving style is evaluated on the basis of
the following three categories:
Acceleration (evaluation of all accelera-
tion processes) The bar fills up: The bar depletes:
Moderate accelera-
tion, espeically at
higher speeds Sporty acceleration
Constant (evaluation of the driving style
at any point in time)
The bar fills up: The bar depletes:
Constant speed and
avoidance of unnec-
essary acceleration
and deceleration
processes Fluctuations in
speed
Coasting (evaluation of total decelera-
tion)
The bar fills up: The bar depletes:
Drive with care,
keep your distance
from the vehicle
ahead and remove
your foot from the
accelerator pedal in
good time: the vehi-
cle can coast with-
out braking Frequent braking i
An economical driving style depends in
particular on driving at moderate speeds.
Achieving a higher value in the categories
"Acceleration" and "Constant":
R observe the gearshift recommendations.
R drive in drive program E(vehicles with
automatic transmission).
i On long journeys at constant speed, such
as on the motorway, only the "Constant"
category bar changes.
i The ECO display sums up the driving
behaviour from the start to the end of the
journey. As a result, the bars change
dynamically at the start of the journey. Dur-
ing long journeys there are fewer changes.
For more dynamic changes, perform a man-
ual reset.
For further information on ECO display, see
(Y page 250). Short journeys
! Vehicles with adiesel particle filter: if
the vehicle is mostly driven for short dis-
tances, it is possible that malfunctions may
occur during the automatic cleaning of the
diesel particle filter. This may lead to fuel
collecting in the engine oil and cause
engine failure. Therefore, if you frequently
drive short distances, you should take a 20
minute trip on a motorway or rural road at
least every 500km. Brakes
Important safety notes G
WARNING
If you shift down on a slippery road surface in
an attempt to increase the engine's braking
effect, the drive wheels could lose their grip.
This increases the risk of skidding and having
an accident. 186
Driving tipsDriving and parking 

Drive program
S+is activated .SPORT han-
dling mode remains activated.
RACE START is deactivated immediately if
you release the accelerator pedal during
RACE START or if any of the activation condi-
tions are no longer fulfilled. The RACE START
not possible See Owner's Manual mes-
sage appears in the multifunction display.
i After using it several times in short suc-
cession, RACE START will be unavailable
until a certain distance has been driven. AIRMATIC
Vehicle level Important safety notes
G
WARNING
If you have selected "Comfort tuning", the
vehicle will be lowered if you lock it within
60 seconds of the engine being switched off.
Make sure, therefore, that nobody is in the
vicinity of the wheel housing or under the
vehicle when you lock the vehicle. Otherwise,
limbs could become trapped.
! The vehicle is lowered by about 15 mm if:
R you have selected "Comfort tuning"
R you switch off the engine and
R you lock the vehicle within approximately
60 seconds
When parking, position your vehicle so that
it does not make contact with the kerb as
the vehicle is lowered. Your vehicle could
otherwise be damaged.
Observe the notes on driving with a trailer
(Y page 236).
Your vehicle regulates its height automati-
cally. All-round level control ensures the best
possible suspension and constant ground
clearance, even with a laden vehicle. When
you drive fast, the vehicle is lowered auto-
matically to improve driving safety and to
reduce fuel consumption. The following vehicle levels are possible:
R
normal
R raised (vehicles without 4MATIC): the vehi-
cle is raised by about 25 mm when com-
pared with the normal level.
R raised (vehicles with 4MATIC): the vehicle
is raised by about 35 mm when compared
with the normal level.
R lowered: the vehicle is lowered by about
10 mm when compared with the normal
level.
The "Normal" and "Raised" vehicle levels can
be set manually.
The "Lowered” vehicle level is set automati-
cally:
R at speeds above 140 km/h
R if you have selected "Sports tuning"
(Y page 209)
Setting the vehicle level G
WARNING
Make sure that nobody is in the vicinity of the
wheel housing or under the vehicle while low-
ering the vehicle when it is stationary. Other-
wise, limbs could become trapped.
Select the "Normal" setting for normal road
surfaces and "Raised" for driving with snow
chains or on particularly poor road surfaces.
Your selection remains stored even if you
remove the key from the ignition lock.
Setting raised level X
Start the engine. 208
Driving systemsDriving and parking