Switching air-recirculation mode
on/off
Important safety notes You can deactivate the intake of fresh air if
unpleasant odors enter the vehicle from out-
side. The air inside the vehicle is then circula-
ted.
When you switch on air-recirculation mode,
the side windows and windows could fog up
more quickly, in particular at low outside tem-
peratures. Only switch on air-recirculation
mode for a short time.
Air-conditioning system or dual-zone
automatic climate control X
Switch on climate control ( Y page 117).
X Press the h button.
If the indicator lamp in the h button
lights up, air-recirculation mode is activated.
Air-recirculation mode switches on automati-
cally: R at high outside temperatures
R while driving in a tunnel (only vehicles with a
navigation system)
The indicator lamp in the h button is then
not lit up. Outside air is added automatically
after about
30 minutes.
Air-recirculation mode is deactivated automati-
cally:
R after approximately five minutes at outside
temperatures below about 45 ‡ (7 †)
R after approximately five minutes when the
cooling with air-dehumidification function is
deactivated
R after approximately 30 minutes at outside
temperatures above about 45 ‡ (7 †) and
when the cooling with air-dehumidification
function is active Convenience opening/pre-entry cli-
mate control
G
WARNING
During convenience opening, body parts
could be drawn in or become trapped
between the side window and the door
frame. There is a risk of injury. Monitor the entire opening procedure when
using convenience opening. When opening,
make sure that nobody touches the side
window. Release the % switch immedi-
ately if somebody becomes trapped, to
interrupt the opening procedure.
X Pre-entry climate control and conveni-
ence opening with the key:
press and hold
the % button on the key.
The side windows open automatically and
the blower of the climate control system is
activated.
X Release the % button.
i At high interior temperatures, the blower is
also switched on when a door is opened.
This means that slightly cooled air enters
the vehicle interior after the engine is star-
ted, to cool the vehicle more rapidly. Switching the residual heat function
on/off
General notes Only vehicles with dual-zone automatic climate
control have the residual heat function.
Once the engine is switched off, it is possible
to make use of the residual heat of the engine
to continue heating or ventilating the front
compartment of the vehicle for approximately
30 minutes. The heating or ventilation time
depends on the set interior temperature.
Switching the function on/off X
Turn the key to position 0 in the ignition
lock or remove it.
X Press the Ì button.
If the residual heat function is activated, the
indicator lamp in the Ì button comes on.
The blower will run at a low speed regard-
less of the airflow setting.
If you activate the residual heat function at
high temperatures, only the auxiliary ventila-
tion will be activated. The blower then runs
at medium speed. Operating the climate control system
123
Climate control Z
Gearshift recommendation
:
Gearshift direction
; Recommended gear The gearshift recommendations assist you in
adopting an economical driving style.
X When the display shows the gearshift rec-
ommendation, shift to recommended
gear ;. Problems with the transmission
Problem
Possible causes/consequences and
M SolutionsThe transmission is
locked in position j. The vehicle electronics are malfunctioning.
X Have the vehicle electronics checked immediately at a qualified
specialist workshop. The acceleration char-
acteristics have deterio-
rated 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 Have the transmission checked immediately at a qualified spe-
cialist workshop.
X Stop the vehicle.
X Move the selector lever to j.
X Switch off the engine.
X Wait at least ten seconds before restarting the engine.
X Depress the brake pedal.
X Move selector lever to h or k.
X Have the transmission checked immediately at a qualified spe-
cialist workshop. 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 creat-
ing sparks under all circumstances. Switch
off the engine and, if applicable, the auxiliary
heating before refueling. G
WARNING
Fuels are toxic and harmful to health. There
is a risk of injury.
You must avoid fuels coming into contact
with skin, eyes and clothes or being swal-
lowed.
Do not inhale the fuel vapors. Keep children
away from fuels.
Keep doors and windows closed during the
refueling process. 136
RefuelingDriving and parking
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 ESP ®
(Y page 69).
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 handles.
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 housings
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- age to fuel lines, brake hoses and the rubber
bellows of axle joints and drive shafts.
X Clean the brake disks, brake pads and axle
joints, particularly after operation in sand,
mud, grit/gravel, water or similarly dirty
conditions.
X Check the entire floor assembly, the tires,
wheels, bodywork structure, brakes, steer-
ing, chassis and exhaust system for any
damage.
X Check the service brake for operating
safety, e.g. carry out a brake test.
X If you notice strong vibrations after driving
off-road, check the wheels and drive train
for foreign objects again. Remove any for-
eign objects which can lead to imbalances
and thus cause vibrations. Driving in mountainous areas
When driving in mountainous areas, note that
the power output of the engine, and with it its
gradient climbing capability, decrease with
increasing altitude. Please take note of this
particularly when driving with a trailer in moun-
tainous areas.
The maximum permissible trailer loads are
valid for journeys at altitudes up to
1100 yds
(1000 m) above sea level with gradients up to
12%.
Information on maximum permissible trailer
loads can be found in your vehicle registration
papers and on the vehicle identification plate
(Y page 304) or under "Trailer loads" ( Y page 315).
When driving at altitudes of 2700 yds
(2500 m) above sea level, the ECO start/stop
function is no longer available.
Notes on braking on downhill gradients can be
found in the "Braking" section (Y page 142). Driving systems
Cruise control
General notes Cruise control maintains the speed of the vehi-
cle for you. It brakes automatically in order to
avoid exceeding the set speed.146
Driving systems
Driving and parking
Observe the following when towing a trailer:
R Practice driving around bends, stopping and
backing up at a place where there is no traf-
fic. This enables you to gain experience and
get used to the new handling characteris-
tics.
R Before driving, check:
- that the trailer tow hitch and ball coupling
are secure
- that the safety switch for a braked trailer
is functioning properly
- that the safety chains are secure and not
damaged
- that the electrical connections are secure
- that the lights are working
- that the wheels are in good order and the
tire pressure is correct
R Adjust the exterior mirrors to provide an
unobstructed view of the rear section of the
trailer.
R If the trailer is equipped with a separate
functional braking system, check before
each journey whether the brakes are func-
tioning correctly.
R Secure the load on the trailer according to
the applicable specifications and current
standards on securing loads
(Y page 244).
R When driving with a trailer, check at regular
intervals that the load is secured and that
the brakes and lights are working.
R Bear in mind that the handling will be less
stable when towing a trailer than when driv-
ing without one. Avoid sudden steering
movements.
R The vehicle/trailer combination is heavier,
accelerates more slowly and has a
decreased gradient climbing capability and a
longer braking distance.
It is more susceptible to crosswinds and
requires cautious steering.
R If possible, do not brake suddenly, but
rather moderately at first so that the trailer
can activate its brakes. Then increase the
force on the brake pedal.
R If the automatic transmission repeatedly
shifts between gears when driving on
inclines, restrict the shift range. Select shift
range 4, 3, 2 or 1.
Driving in a low gear and at a low speed
reduces the risk of damaging the engine. R
When driving on a downhill gradient, shift to
a low gear and take advantage of the
engine's braking effect.
Avoid continuous brake application as this
may overheat the vehicle brakes and, if
installed, the trailer brakes.
R If the coolant temperature increases dra-
matically while the air-conditioning system
is switched on, switch off the air-condition-
ing system.
Coolant heat can also be dissipated by
switching the airflow and the temperature of
the air conditioning to the maximum level.
Open the windows if necessary.
R When overtaking, pay particular attention to
the extended length of your vehicle/trailer
combination.
Due to the length of your vehicle/trailer
combination you need an additional dis-
tance before you can return to your original
lane. Uncoupling a trailer
G
WARNING
If you uncouple a trailer with the overrun
brake engaged, you could trap your hand
between the vehicle and the trailer drawbar.
There is a risk of injury.
Do not uncouple a trailer if the overrun
brake is engaged.
! Do not disconnect a trailer with an
engaged overrun brake. Otherwise, your
vehicle could be damaged by the rebound-
ing of the overrun brake.
X Make sure that the selector lever of the
automatic transmission is in position P.
X Engage the vehicle's parking brake.
X Close all doors.
X Apply the parking brake of the trailer.
X In addition, secure the trailer against rolling
away with a wheel chock or similar object.
X Remove the trailer cable and safety chains
and decouple the trailer. Towing a trailer
171
Driving and parking Z
120 km/h! (only for certain countries)
maximum permissible speed exceeded
= Display panel for display messages, menus
and menu bar
? Transmission position (Y page 132)
A Fuel level
Fuel filler flap location indicator t: the
fuel filler cap is on the left-hand side
B è Rear window wiper
(Y page 110)
Display panel = shows the selected menu or
submenu and display messages. Menu overview
The Settings menu is only displayed when
the vehicle is stationary. You can think of the
order of the menus and functions as a circle.
Press È on the instrument cluster to scroll
through the menus.
If you scroll forward in the Settings menu
using 3, the setting from the previous sub-
menu or function is adopted.
If you press È in a submenu, the submenu or
function is exited without adopting the setting.
The display then shows the start screen of the
Settings menu.
Operation information can be found under
"Operating the on-board computer"
(Y page
176).
Depending on the vehicle equipment, you can
call up the following menus, displays or func-
tions:
R trip odometer and odometer display
(Y page 177)
R trip computer display (Y page 177)
R current range display (Y page 178)
R current fuel consumption display
(Y page 178)
R digital speedometer ( Y page 178)
R coolant temperature gage (Y page 178)
R display messages in the message memory
(Y page 195)
The following menus, displays and functions
are only displayed when the vehicle is station-
ary:
R next service due date display ( Y page 258)
R tire pressure monitor restart (Y page 285)
R Settings menu for setting or activating/
deactivating driving and driver assistance systems as well as display options
(Y page
179) Distance menu
Odometer
If the display shows the speed in the header,
the display beside trip odometer : also
shows the outside temperature.
You can switch the permanent display in the
header
(Y page 180).
Use the buttons in the instrument cluster.
X To display: press and hold È until the dis-
play shows trip odometer : and odome-
ter ;.
X To reset: press and hold 3 until the trip
odometer is reset to 0.0.
You can set the unit of measurement for the
trip odometer in the Distance Unit: sub-
menu (Y page
180). Trip computer menu
Trip computer
:
Distance
; Length of journey
= Average fuel consumption
? Average speed On-board computer (vehicles without steering wheel buttons)
177
On-board computer and displays Z
Display
Instrument cluster display
:
Clock (Y page 192)
; Ä COLLISION PREVENTION ASSIST dis-
tance warning function
(Y page 149)
j Active Parking Assist
(Y page 159)
= Permanent display: outside temperature or
speed ( Y page
192)
120 km/h! (only for certain countries)
maximum permissible speed exceeded
? Menu bar
Outside temperature (only if header F dis-
plays the additional speedometer)
A Drive program ( Y page 132)
B Transmission position ( Y page
132)
C Gearshift recommendation ( Y page
136)
D Status area
E Display panel for display messages, menus
and menu bar
F Header
X To call up menu bar ? in the display
panel: press the = or ; steering
wheel button.
The menu bar is faded out after a few sec-
onds.
Display panel E shows the selected menu or
submenu and display messages. In status area D, the display can show the
status of the following driving systems:
À ATTENTION ASSIST ( Y page
155)
à Lane Keeping Assist ( Y page
153)
V Cruise control (Y page
146)
è Rear window wiper (Y page
110) Menu overview
You can think of the order of the menus as a
circle. Use the = or ; steering wheel
buttons to show the menu bar and scroll
through the menus. Use the : or 9
steering wheel buttons to scroll through their
submenus and functions.
Operation information can be found under
"Operating the on-board computer"
(Y page
181).
Depending on the vehicle equipment, you can
call up the following menus:
R Trip menu (Y page 183)
R Navi menu (navigation instructions)
(Y page 185)
R Audio menu ( Y page 187)
R Tel (telephone) menu (Y page 188)
R Assist. (assistance) menu ( Y page 189)
R Service menu (Y page 191)
R Settings menu (Y page 191) Trip menu
Standard display Odometer
X Press and hold the % steering wheel but-
ton until the Trip menu with trip odome-
ter : and odometer ; appears. On-board computer (vehicles with steering wheel buttons)
183
On-board computer and displays Z
X
Press 6 or a to start dialing.
or X To exit the phone book: press ~ or
%.
Redialing The on-board computer saves the last names
or numbers dialed in the redial memory. Using
the steering wheel buttons
X Press = or ; to select the Tel menu.
X Press the 6 button to switch to the
redial memory.
X Press : or 9 to select names or tele-
phone numbers.
X Press the 6 or a button to start dial-
ing.
or X To exit the redial memory: press the ~
or % button. Assistance menu
Introduction Depending on the vehicle’s equipment, you
have the following options in the Assist.
menu:
R Displaying the status overview
(Y page
189)
R Deactivating or activating ESP ®
(Y page 190)
R Activating or deactivating the COLLISION
PREVENTION ASSIST distance warning func-
tion (Y page 190)
R Setting the ATTENTION ASSIST sensitivity
(Y page 190) R
Activating or deactivating Blind Spot Assist
(Y page
191)
R Setting the sensitivity of Lane Keeping
Assist (Y page 191)
Status overview :
Blind Spot Assist switched on and activa-
ted
(Y page 191)
; Rear window wiper switched on
(Y page
110)
= ATTENTION ASSIST activated
(Y page
190)
? COLLISION PREVENTION ASSIST distance
warning function activated
(Y page 190)
A Lane Keeping Assist activated and ready
for use (Y page
191)
X Press = or ; to select the Assist.
menu.
X Press 9 or : to select Status
Overview.
X Press the a button.
The Status Overview only shows the sym-
bols of the driving systems or driving safety
systems that are activated. The Blind Spot
Assist and Lane Keeping Assist symbols
may vary depending of the system status:
R If Blind Spot Assist symbol : does not
show any radar waves between the two
vehicles, Blind Spot Assist is switched on
but not ready for use.
Further information can be found under
"Blind Spot Assist" (Y page
151).
R If Lane Keeping Assist symbol A shows
dashed lane boundary lines, Lane Keeping
Assist is switched on but not ready for
use.
Further information can be found under
"Lane Keeping Assist" (Y page 153). On-board computer (vehicles with steering wheel buttons)
189
On-board computer and displays Z
Display messages
Possible causes/consequences and
M SolutionsF (USA
only) ! (Canada only)
Release Park. Brake The red
F (USA only)/ ! (Canada only) indicator lamp in the
instrument cluster lights up and a warning tone also sounds.
You are driving with the parking brake applied or are making an
emergency stop using the parking brake.
X Release the parking brake (Y page 138).6
Malfunction Ser‐
vice Req. The restraint system is faulty. In addition, the
6 warning lamp
lights up in the instrument cluster.
G WARNING
The air bags or Emergency Tensioning Devices may either be trig-
gered unintentionally or, in the event of an accident, may not be
triggered.
There is an increased risk of injury.
X Have the restraint system and its components checked immedi-
ately at a qualified specialist workshop.
Further information on the restraint system and its components can
be found under "Occupant safety"
(Y page 46). 6
Fr. Left Malf. Ser‐
vice Req.
or Fr.
Right Malf. Ser‐
vice Req. The front left or right restraint system is malfunctioning. In addition,
the 6 warning lamp lights up in the instrument cluster.
G WARNING
The air bags or Emergency Tensioning Devices may either be trig-
gered unintentionally or, in the event of an accident, may not be
triggered.
There is an increased risk of injury.
X Have the restraint system and its components checked immedi-
ately at a qualified specialist workshop. Left Curtain Air‐
bag Service
Required
or Rt.
Curtain Airbag Ser‐
vice Required There is a malfunction in the left or right window curtain air bag. In
addition, the 6 warning lamp lights up in the instrument cluster.
G WARNING
The left or right window curtain air bag may either be triggered unin-
tentionally or, in the event of an accident, may not be triggered.
There is an increased risk of injury.
X Have the restraint system checked immediately at a qualified
specialist workshop. Display messages (vehicles without steering wheel buttons)
201
On-board computer and displays Z