
Key positions
005A
To insert/remove the key, to lock the
steering wheel
0047 To unlock the steering wheel, power sup-
ply for some consumers (e.g. the radio)
0048 To switch on the ignition. Power supply for
all consumers, preglow and drive position
0049 To start the engine
On vehicles with a battery main switch, you
must first switch on the power supply
(Y page 137).
i To unlock the steering, move the steering
wheel slightly while turning the key to posi- tion 1. Preparing for a journey
Visual check of the vehicle exterior X
In particular, check the following compo-
nents on the vehicle, and on the trailer as
necessary:
R license plates, vehicle lighting, turn sig-
nals, brake lamps and wiper blades for
dirt and damage
R tires and wheels for firm seating, correct
tire pressure and general condition
R trailer tow hitch for play and security
The trailer coupling is one of the most
important vehicle parts with regard to
road safety. The separate instructions
issued by the manufacturer pertaining to operation, care and maintenance should
be observed.
X Rectify any noticeable defects before com-
mencing the journey.
Checks in the vehicle Emergency equipment/first-aid kit
X Check the equipment to make sure that it is
accessible, complete and ready for use.
The first aid and breakdown assistance equip-
ment is in the front door stowage compart-
ments and behind the driver's seat.
Vehicle lighting
X Turn the key to position 2in the ignition
lock.
X Check the lighting system with the aid of a
second person.
X Replace defective bulbs (Y page 99). Before driving off
G
WARNING
Objects in the driver's footwell may restrict
the clearance around the pedals or block a
depressed pedal. This jeopardizes the oper-
ating and road safety of the vehicle. There is a risk of an accident.
Stow all objects securely in the vehicle so that
they do not get into the driver's footwell.
When using floormats or carpets, make sure
that they are properly secured so that they do not slip or obstruct the pedals. Do not place
several floormats or carpets on top of one
another. G
WARNING
Unsuitable footwear can hinder correct usage of the pedals, e.g.:
R shoes with thick soles
R shoes with high heels
R slippers
There is a risk of an accident. 138
DrivingDriving and pa
rking

Wear suitable footwear to ensure correct
usage of the pedals.
X Secure the load as per the loading guide-
lines (Y page 240).
X Make sure that the floormats and carpets
are properly secured so that they cannot
slip and obstruct the pedals.
X Close all doors. Starting the engine
G
WARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Inhaling
these exhaust gases leads to poisoning. There is a risk of fatal injury. Therefore never leave
the engine running in enclosed spaces with-
out sufficient ventilation.
! Do not depress the accelerator pedal
when starting the engine.
X Before starting the engine, make sure that:
R all the doors are closed.
R all the vehicle occupants are wearing
their seat belts correctly.
R the parking brake is applied.
i If you depress the brake pedal before
starting the engine, the pedal travel is short
and pedal resistance is high.
If you depress the brake pedal again after
starting the engine, pedal travel and resist-
ance will be back to normal again. Gearshift pattern
005D
Park position with parking lock
005E Reverse gear
005C Neutral
005B Drive
X Move the selector lever to position P.
The display in the instrument cluster shows
P:
R on vehicles with steering wheel buttons
(Y page 187)
R on vehicles without steering wheel but-
tons (Y page 182)
i You can also start the engine in neutral
N.
X Turn the key to position 2in the ignition
lock.
The 0028 preglow indicator lamp in the
instrument cluster lights up briefly.
X Once the 0028preglow indicator lamp goes
out, turn the key to position 3in the ignition
lock and release it as soon as the engine is running.
i You can start the engine without preglow
when the engine is warm.
The preglow system is malfunctioning if the
0028 preglow indicator lamp lights up for
approximately 1 minute:
R after the ignition is switched on
R while the engine is running
At extremely low outside temperatures you
may then no longer be able to start the
engine. Have the malfunction rectified at a qualified specialist workshop. Driving
139Driving and parking Z

i
Depending on the equipment installed,
the vehicle either automatically locks cen-
trally after switching on the ignition or after pulling away. The locking knobs in the
doors drop down.
You can open the doors from the inside at
any time.
Automatic door locking can be deactivated
(Y page 71). Driving off
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.
! Only shift into reverse gear
Rwhen the
vehicle is stationary. Otherwise, you could
damage the transmission.
X Depress the brake pedal and keep it
depressed.
The selector lever lock is released.
X Move the selector lever to position Dor R.
On vehicles with a reverse warning feature, when reverse gear is engaged a warning
tone sounds to alert other road users
(Y page 140).
X Release the parking brake (Y page 150).
The 0066 indicator lamp in the instrument
cluster goes out.
X Release the brake pedal.
X Carefully depress the accelerator pedal.
i After pulling away or switching on the
ignition, the vehicle automatically locks
centrally. The 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 71). Reverse warning device
G
WARNING
Other road users may ignore or fail to hear the warning tone of the reverse warning feature.
There is a risk of injury if you fail to ensure that
the area in which you are maneuvering is
clear.
Make sure that there are no persons or
objects in the area in which you are maneu-
vering. It may be necessary to enlist the help
of a second person when maneuvering.
The reverse warning feature is a system
designed to assist you in ensuring the safety
of other road users.
A warning signal sounds to alert other road
users when reverse gear is engaged. The vol-
ume of the warning tone can be reduced for
night-time driving.
X To reduce the volume of the warning
tone: engage reverse gear twice in quick
succession.
The warning tone is now quieter.
i The warning tone sounds at a normal vol-
ume by default. The volume of the warning
tone has to be reduced each time you
engage reverse gear if necessary. 140
DrivingDriving an
d parking

Problems with the engine
Problem
Possible causes/consequences and
0050
0050Solutions The engine does not
start.
The starter motor can
be heard. There is air in the fuel system.
X Turn the key back to position 0in the ignition lock before
attempting to start the engine again.
X Start the engine again.
Please bear in mind that lengthy and frequent starting attempts
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 gage is at
0. The fuel tank has been run dry.
X Refuel the vehicle.
If you drive until the fuel tank is completely empty, air may get into
the fuel system. If the engine does not start after refueling, bleed the fuel system as follows:
X Turn the key to position 2in the ignition for approximately
10 seconds.
X Start the engine continuously for a maximum of 60 seconds.
If the engine does not start:
X Wait approximately 2 minutes.
X Restart the engine continuously for a maximum of 60 seconds.
X If the engine still fails start, do not continue trying to start it.
X Consult a qualified specialist workshop. The vehicle cannot be
driven at a speed
exceeding 5 mph
(8 km/h).
The yellow
00B9engine
diagnostic lamp and
the yellow 00E2DEF
indicator lamp 2
light
up. The exhaust gas aftertreatment is faulty, an emission-relevant
malfunction has occurred or the DEF reserve has been used up.
This malfunction or defect can damage the exhaust gas after-
treatment.
X Observe the messages in the display:
R on vehicles without steering-wheel buttons (Y page 200)
R on vehicles with steering-wheel buttons (Y page 211) and
(Y page 211). The engine does not
start.
The starter motor can-
not be heard. The battery isolating switch is switched off.
X Switch on the power supply (Y page 137).2
Only vehicles without steering-wheel buttons. Driving
141Driving and parking Z

Problem
Possible causes/consequences and
0050
0050Solutions The engine does not
start.
The starter motor can-
not be heard. The on-board voltage is too low. The battery is too weak or dis-
charged.
X Jump-start the vehicle (Y page 276).
If the engine cannot be jump-started, the starter motor is faulty.
X Consult a qualified specialist workshop. The engine does not
start.
The starter motor can-
not be heard. The battery is discharged or faulty.
X Check the battery for damage.
X Charge the battery (Y page 263).Automatic transmission
Important safety notes
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.
! Vehicles with automatic transmission
may roll only briefly in the neutral position
N. Prolonged rolling of the wheels, e.g.
when being towed, will result in transmis-
sion damage.
i Be sure to observe the instructions in the
"Tow-starting and towing away" section
(Y page 277). Selector lever
005D
Park position with parking lock
005E Reverse gear
005C Neutral
005B Drive
The display in the instrument cluster shows
the present selector lever position or the cur-
rent shift range:
R on vehicles with steering wheel buttons
(Y page 187)
R on vehicles without steering wheel buttons
(Y page 182) 142
Automatic transmissionDriving and parking

Selector lever positions
0045 Park position
This prevents the vehicle from roll-
ing away when stopped. Only move
the selector lever to Pif the vehicle
is stationary.
You can only remove the key when the selector lever is in this position.
The selector lever is locked in posi- tion Pif the key is removed.
The parking lock should not be
used as a brake when parking.
Always apply the parking brake as
well once you have parked the vehi-
cle. 0046 Reverse gear
Only move the selector lever to
R
when the vehicle is stationary. 0044 Neutral
No power is transmitted from the
engine to the drive wheels. Releas-
ing the brakes will allow you to
move the vehicle freely, e.g. by
pushing.
Do not move the selector lever to N
while driving. The automatic trans-
mission could otherwise be dam-
aged.
If ASR is deactivated or ESP ®
has
malfunctioned: only move the
selector lever to Nif the vehicle is
in danger of skidding, e.g. on icy
roads. 003A Drive
The automatic transmission
changes gear itself. All forward
gears are available.
You can influence the gearshifts
and shift gears yourself or limit the
shift range. Changing gear
The 5-speed automatic transmission adapts
to your individual driving style by continu-
ously adjusting its shift points. These shift
point adjustments take into account the cur-
rent operating and driving conditions. If the
operating or driving conditions change, the
automatic transmission reacts by adjusting
the gearshift program.
When the selector lever is in position D, the
automatic transmission selects the individual gears automatically. This depends on:
R any restriction in the shift range
(Y page 144)
R the position of the accelerator pedal
R the road speed Touchshift
When the selector lever is in position D, you
can perform gearshifts yourself.
X To shift down: press the selector lever to
the left towards D–.
The automatic transmission shifts to the
next gear down, depending on the gear cur-
rently engaged. The shift range is also
restricted.
i The automatic transmission does not shift
down if you press the selector lever
towards D–while traveling at too high a
speed. This protects the engine from over-
revving.
X To shift up: briefly press the selector lever
to the right towards D+.
The automatic transmission shifts to the
next gear up, depending on the current
gearshift program. This also extends the
shift range. Automatic transmission
143Driving and parking Z

Problems with the transmission
Problem
Possible causes/consequences and
0050
0050Solutions The transmission mal-
functions when shifting
gear. The transmission is losing oil.
X Have the transmission checked immediately at a qualified spe-
cialist workshop. The acceleration char-
acteristics have deter-
iorated noticeably.
The transmission does
not shift. The transmission is in emergency mode.
It is only possible to shift into second gear or reverse gear
R.
X Stop the vehicle.
X Depress the brake pedal.
X Move the selector lever to position P.
X Switch off the engine.
X Wait at least 10 seconds before restarting the engine.
X Depress the brake pedal.
X Move the selector lever to position Dor R.
In position D, the transmission shifts into second gear; in posi-
tion R, the transmission shifts into reverse gear.
X Have the transmission checked immediately at a qualified spe-
cialist workshop. Releasing the parking lock manually
In the event of a malfunction, it is possible to
manually release the selector lever from the
lock in parking position P, e.g. to have the
vehicle towed away. X
Apply the parking brake.
X Remove cover 0043.
X Slide implement 0044as far as it will go into
the opening. X
Push the implement in and simultaneously
move the selector lever out of position P.
The selector lever lock is released. You can now move the selector lever freely again
until it is returned to position P.
X Remove implement 0044.
X Re-install cover 0043.
i The screwdriver from the vehicle tool kit
could function as the implement, for
instance (Y page 274). Refueling
Important safety notes
G
WARNING
Fuel is highly flammable. Improper handling of fuel creates a risk of fire and explosion.
Avoid fire, open flames, smoking and creatingsparks under all circumstances. Switch off the Refueling
145Driving and parking
Z

engine and, if applicable, the auxiliary heating
before refueling. G
WARNING
Fuel is poisonous and hazardous to health.
There is a risk of injury.
You must make sure that fuel does not come into contact with your skin, eyes or clothing
and that it is not swallowed. Do not inhale fuel
vapors. Keep fuel away from children.
If you or others come into contact with fuel,
observe the following:
R Wash away fuel from skin immediately
using soap and water.
R If fuel comes into contact with your eyes,
immediately rinse them thoroughly with
clean water. Seek medical assistance with-
out delay.
R If fuel is swallowed, seek medical assis-
tance without delay. Do not induce vomit-
ing.
R Immediately change out of clothing which
has come into contact with fuel. G
WARNING
If you mix diesel fuel with gasoline, the flash
point is lower than that of pure diesel fuel.
When the engine is running, exhaust system
components could overheat without being
noticed. There is a risk of fire.
Never refuel with gasoline. Never mix gasoline with diesel fuel. H
Environmental note
If fuels are handled improperly, they pose a
danger to persons and the environment. Do
not allow fuels to run into the sewage system, the surface waters, the ground water or into
the ground.
! Do not use gasoline to refuel vehicles with
a diesel engine. Even small amounts of gas-
oline will cause damage to the fuel system and 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.
! Filter the fuel before transferring it to the
vehicle if you are refueling the vehicle from
barrels or containers.
This will prevent malfunctions in the fuel
system due to contaminated fuel.
Further information on fuel and on fuel grades can be found in the "Technical data" section
(Y page 318). Refueling procedure
The fuel filler flap is on the left side of the
vehicle behind the front door. It is only pos-
sible to open the fuel filler flap when the front door is open.
X Remove the key from the ignition lock.
X Switch off the auxiliary heating system
(Y page 122).
X Open the front left-hand door first, and then
the fuel filler flap.
X Close all vehicle doors to prevent fuel
vapors from entering the vehicle. 146
RefuelingDriving and parking