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
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
Parking
Important safety notes
G
WARNING
Flammable material such as leaves, grass or
twigs may ignite if they come into contact with hot parts of the exhaust system or exhaust
gas flow. 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. 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 you leave children unsupervised in the vehi- cle, they could set it in motion by, for example:
R release the parking brake.
R shift the automatic transmission out of the
parking position P.
R start the engine.
In addition, they may operate vehicle equip-
ment and become trapped. There is a risk of
an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
! A moving vehicle can lead to damage to
the vehicle or damage to the drive train.
! When the vehicle is parked, always
remove the key to prevent the battery from becoming discharged. On vehicles with a battery isolating switch,
switch off the power supply if the vehicle isto be out of use for a longer period of time.
Always park your vehicle safely and according
to legal requirements and secure it against
rolling away.
To ensure that the vehicle is properly secured against rolling away unintentionally:
R the parking brake must be firmly applied
R the selector lever must be in position Pand
the key must be removed from the ignition lock
R on steep uphill or downhill gradients, the
front wheels must be turned towards the
curb
R the rear axle must be secured, e.g. with a
wheel chock, on steep uphill or downhill
gradients
Use the wheel chock (Y page 151) to do so.
If you leave the vehicle parked for more than
three weeks:
R connect the batteries to a trickle charger or
R disconnect the vehicle's starter battery or
R switch off the electrical system using the
battery main switch (Y page 137) and
R disconnect the vehicle's auxiliary battery
Otherwise, you need to check the battery's
condition of charge every three weeks, since standby power consumption can drain the
battery. If the battery voltage is lower than
12.2 V, the battery must be charged. Other-
wise, the battery may be damaged by exhaus-
tive discharging.
Be sure to observe the notes on disconnect-
ing and charging the batteries under "Bat-
tery“ (Y page 258). You can obtain informa-
tion about trickle chargers from a qualified
specialist workshop. Parking
149Driving and parking Z
You must depress the brake pedal more
firmly. Maintain a longer distance to the vehi- cle in front.
While paying attention to the traffic condi-
tions, you should brake the vehicle firmly
after driving on a wet road surface or through
a car wash. This heats the brake discs, so that they dry more quickly, which protects them
against corrosion.
Limited braking performance on salt-
treated roads When driving on salted roads, salt may start
to build up on the brake disks and brake pads.
This can increase braking distances consid-
erably.
Maintain a greater distance to the vehicle in
front.
To remove any build up of salt that may have
formed:
X Apply the brakes at the start of the journey,
occasionally during journey and at the end
of the journey. Make sure that you do not
endanger other road users when doing so.
Parking brake G
WARNING
If you must brake the vehicle with the parking brake, the braking distance is considerably
longer and the wheels could lock. There is an
increased danger of skidding and accidents.
Only use the parking brake to brake the vehi- cle when the service brake is faulty. Do not
apply the parking brake too firmly. If the
wheels lock, release the parking brake until
the wheels begin turning again.
When driving on wet roads or dirt-covered
surfaces, road salt and/or dirt may get into
the parking brake. This causes corrosion and a reduction of braking force.
In order to prevent this, drive with the parking
brake lightly applied from time to time. When
doing so, drive for a distance of approximately 110 yds (100 m) at a maximum speed of
12 mph (20 km/h).
The brake lamps are not illuminated when you
brake the vehicle using the parking brake. Driving in wet conditions
Hydroplaning G
WARNING
There is a danger of hydroplaning occurring,
even if you are driving slowly and your tires
have sufficient tread depth, depending on the depth of water on the road. There is a risk of
an accident.
For this reason, avoid tire ruts and brake care- fully.
Therefore, in heavy rain or other conditions in which hydroplaning can occur, drive as fol-
lows:
R reduce your speed
R avoid tire ruts
R apply the brakes with care
Driving on flooded roads !
Do not drive through flooded areas.
Check the depth of any water before driving
through it. Drive slowly through standing
water. Otherwise, water may enter the
vehicle interior or the engine compartment.
This can damage the electronic compo-
nents in the engine or the automatic trans- mission. Water can also be drawn in by the engine's air suction nozzles and this can
cause engine damage.
If you have to drive on stretches of road on
which water has collected, please bear in
mind that:
R the water level of standing water should not
be above the lower edge of the front
bumper
R do not drive faster than walking speed Driving tips
155Driving and parking Z
G
WARNING
When driving off-road, your body is subject to forces from all directions, due to the uneven
surface. You could be thrown from your seat,
for instance. There is a risk of injury.
Always wear a seat belt, even when driving off-
road. G
WARNING
If you drive over obstacles or in ruts, the steer- ing wheel may jerk out of your grip, causing
injury to your hands.
Always hold the steering wheel firmly with
both hands. When driving over obstacles, you must expect steering forces to increase
briefly and suddenly. G
WARNING
Flammable material such as leaves, grass or
twigs may ignite if they come into contact with hot parts of the exhaust system. There is a risk of fire.
When driving off road or on unpaved roads,
check the vehicle's underside regularly. In
particular, remove parts of plants or other
flammable materials which have become
trapped. In the case of damage, contact a
qualified specialist workshop.
! When driving off-road or on unpaved sur-
faces, check the underside of the vehicle
and the wheels and tires at regular inter-
vals. In particular, remove any trapped for- eign objects, e.g. stones and branches.
Such foreign objects may:
R damage the chassis, the fuel tank or the
brake system
R cause imbalances and thus vibrations
R be flung out when you continue driving
If there is any damage, inform a qualified
specialist workshop.
When driving off-road and on construction
sites, sand, mud and water mixed with oil, for
example, may get into the brakes. This may
lead to a reduction in braking performance or total brake failure, also as a result of
increased wear. The braking characteristics
will vary depending on the material that has
got into the system. Clean the brakes after
driving off-road. If you then notice reduced
braking performance or hear scraping noises,
have the brake system checked at a qualified specialist workshop. Adjust your driving style
to the changed braking characteristics.
Driving off-road or on construction sites
increases the possibility of vehicle damage
which may in turn lead to the failure of certain assemblies and systems. Adapt your driving
style to the off-road driving conditions. Drive
carefully. Have any vehicle damage rectified
at a qualified specialist workshop as soon as
possible.
When driving on rough terrain, do not shift the transmission into the neutral position. You
could lose control when attempting to brake
the vehicle with the service brake. If your
vehicle cannot manage an uphill slope, drive
back down the slope in reverse gear.
When loading your vehicle for driving off-road or on a construction site, keep the vehicle's
center of gravity as low as possible.
Checklist before driving off-road X
Check the fuel and DEF levels (Y page 181)
and top up (Y page 148).
X Engine: check the oil level (Y page 250)
and add oil (Y page 252).
Before driving up or down steep gradients,
fill the oil to the maximum level.
i If you drive up or down steep gradients,
the 00B2 symbol may appear in the display.
The engine operating safety is not put at
risk if you have filled the engine oil to the
maximum level before the journey.
X Vehicle tool kit: check that the jack is
working (Y page 274).
X Make sure that a lug wrench (Y page 274),
wooden underlay for the jack, a robust tow Driving tips
157Driving and parking Z
cable and a folding spade are carried in the
vehicle.
X Wheels and tires: check the tire tread
depth (Y page 285) and tire pressure
(Y page 288).
Rules for driving off-road !
Always bear the vehicle's ground clear-
ance in mind and avoid obstacles, e.g. deep ruts.
Obstacles may damage the following parts
of the vehicle:
R the chassis
R the drive train
R the fuel and supply tanks
For this reason, you should always drive
slowly when driving off-road. If you have to drive over obstacles, have the co-driver
direct you.
i We recommend that you additionally
carry a shovel and a recovery rope with
shackle in the vehicle.
R Ensure that loads and items of luggage are
securely stowed or lashed down
(Y page 240).
R Before driving off-road, stop the vehicle and
shift to a low gear.
R If the surface demands it, temporarily deac-
tivate ASR when pulling away (Y page 58).
R Only drive off-road with the engine running
and a gear engaged.
R Drive slowly and smoothly. Walking pace is
necessary in many situations.
R Avoid spinning the drive wheels.
R Make sure that the wheels always remain in
contact with the ground.
R Drive with extreme care over unknown ter-
rain where you can only see for a short dis-
tance. As a precaution, get out of the vehi-
cle to take a look at the route to be taken in
advance.
R Check the water depth before fording. R
Watch out for obstacles (e.g. rocks, holes,
tree stumps and ruts).
R Avoid edges where the surface could crum-
ble or break away.
Checklist after driving off-road !
If you detect damage to the vehicle after
driving off-road, have the vehicle checked
immediately at a qualified specialist work-
shop.
Off-road driving places a higher demand on
your vehicle than normal road operation.
Check your vehicle after driving on rough ter- rain. By doing so you will notice any damage in
good time and reduce the risk of an accident for yourself and other road users. Clean your
vehicle thoroughly before driving on public
roads.
Observe the following points after driving off-
road, on construction sites and before driving on public roads:
X Activate ASR (Y page 58).
X Clean the headlamps and tail lamps and
check them for damage.
X Clean the front and rear license plates.
X Clean the windshield, windows and exterior
mirrors.
X Clean the steps, door sills and grab han-
dles.
This increases safety of footing.
X Clean the wheels/tires, wheel housings
and the underbody of the vehicle with a
water jet.
This increases road grip, especially on wet
road surfaces.
X Check the wheels/tires and wheel hous-
ings for trapped foreign objects and
remove them.
Trapped foreign objects can damage the
wheels/tires and may be flung out from the
vehicle when you continue driving.
X Check the underbody for trapped branches
or other parts of plants and remove them.
Trapped branches or other parts of plants
increase the risk of fire and can cause dam- 158
Driving tipsDriving and parking
Up to a speed of about 45 mph (70 km/h), the
distance warning function can also react to
stationary obstacles, such as stopped or
parked vehicles.
If you approach an obstacle and the distance
warning function detects a risk of a collision,
the system will alert you both visually and
acoustically.
In particular, the detection of obstacles can
be impaired in the case of:
R there is dirt on the sensors or anything else
covering the sensors
R it is snowing or raining heavily
R there is interference from other radar sour-
ces
R there are strong radar reflections, for
example in parking garages
R a narrow vehicle traveling in front, e.g. a
motorbike
R a vehicle traveling in front on a different line
Following damage to the front end of the vehi-
cle, have the configuration and operation of
the radar sensor checked at a qualified spe-
cialist workshop. This also applies to colli-
sions at slow speeds where there is no visible
damage to the front of the vehicle.
Activating/deactivating the distance
warning function
When you switch on the engine, the distance
warning function switches on after a few sec-
onds.
X To deactivate: press the00D4button
(Y page 37).
Vehicles without steering wheel but-
tons: the00C7 warning lamp in the instru-
ment cluster lights up and the OFF
OFF message
flashes.
Vehicles with steering wheel buttons:
the 00C7 warning lamp in the instrument cluster lights up and the
Distance Warn‐ Distance Warn‐
ing Deactivated
ing Deactivated message appears.
X To activate: press the00D4button again
(Y page 37).
Vehicles without steering wheel but-
tons: the00C7 warning lamp in the instru-
ment cluster goes out and the ON
ON message
flashes.
Vehicles with steering wheel buttons:
the 00C7 warning lamp in the instrument
cluster goes out and the Distance Warn‐ Distance Warn‐
ing Activated
ing Activated message appears in the
multifunction display.
Adaptive Brake Assist i
Observe the "Important safety notes" sec-
tion for driving safety systems (Y page 57). G
WARNING
Adaptive Brake Assist cannot always clearly
identify objects and complex traffic situa-
tions.
In such cases, Adaptive Brake Assist can:
R intervene unnecessarily
R not intervene
There is a risk of an accident.
Always pay careful attention to the traffic sit- uation and be ready to brake. Terminate the
intervention in a non-critical driving situation. G
WARNING
Adaptive Brake Assist does not react:
R to people or animals
R to oncoming vehicles
R to crossing traffic
R to stationary obstacles
R when cornering
As a result, the Adaptive Brake Assist may not intervene in all critical conditions. There is a
risk of an accident.
Always pay careful attention to the traffic sit- uation and be ready to brake. 162
Driving systemsDriving and parking
The camera is in the middle of the roof above
the high-mounted brake lamp (Y page 269).
The rear view camera may show obstacles in perspectival distortion, incorrectly or not at
all. The rear view camera cannot display all
objects located very near and/or under the
rear bumper. It does not warn you of a colli-
sion, persons or objects.
The area behind the vehicle is displayed in a
mirrored fashion, as in the rear-view mirror or
the exterior mirrors.
The function of the rear view camera may be
partially or completely impaired in the follow-
ing circumstances:
R it is raining very heavily or snowing, or it is
foggy.
R the parking space is located in a very dark
place.
R the camera is exposed to very strong white
light. White stripes may appear on the dis-
play.
R the surrounding area is illuminated with flu-
orescent light. The display may flicker.
R if the temperature changes very quickly, for
example if you drive into a heated garage in the winter.
R ambient temperatures are very high.
R the camera lens is dirty or obstructed.
R the rear of the vehicle is damaged. In this
case, have the position and setting
checked at a specialist workshop.
The rear view camera is activated when you
engage reverse gear R.
You can find information on cleaning the cam-
era in the "Maintenance and care" section
(Y page 269). Working mode
ADR (working speed governor)
General notes When activated, ADR automatically increases
the engine speed to a preset speed or a speed
you have set.
i After a cold start, the idling speed of the
engine is increased automatically. If the
preset working speed is lower than the
increased idling speed, the working speed
is only reached once the engine has com-
pleted the warm-up phase.
It is only possible to activate ADR with the
vehicle stationary and the parking brake
applied.
The selector lever of the automatic trans-
mission must be in position P.
Activating/deactivating ADR X
To activate: press upper section 0043of the
0091 switch while the engine is running.
The indicator lamp in the switch comes on.
The 004E indicator lamp in the instrument
cluster lights up or the display shows the
following message: Operating speed Operating speed
governor active
governor active.
X To deactivate: press lower section 0044of
the 0091 switch while the engine is run-
ning.
The indicator lamp in the switch goes out. 172
Working modeDriving and parking