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56Seats, restraintsThe armrest can be slid forwards by
10 cm. Under the armrest there is a
storage compartment.
Armrest storage 3 74.
Heating
Adjust heating to the desired setting
by pressing ß for the respective seat
one or more times. The control
indicator in the button indicates the
setting.
Prolonged use of the highest setting
for people with sensitive skin is not
recommended.
The seat heating will be reduced
automatically from highest level to
medium level after 30 minutes.
Seat heating is operational when
engine is running and during an
Autostop.
Stop-start system 3 157.
Automatic seat heating Depending on the equipment, the
automatic seat heating can be
enabled in the vehicle personalisation
menu in the Info Display.
Vehicle personalisation 3 124.
When enabled, the heating of the
seats will be activated automatically
at vehicle start. The activation is
based on several parameters such as vehicle interior temperature, intensity
and direction of the sun and
temperature setting of the electronic
climate control system for the driver
and passenger side.
As the vehicle’s interior warms up, the seat heating level will be reduced
automatically until it finally goes off.The seat heating level being provided
during the automatic operation is
shown by heated seat indicator lights.
If the passenger seat is unoccupied,
the automatic seat heating feature will not activate the seat heating for that
seat.
The seat heating buttons can be
pressed at any time to exit the
automatic seat heating for the
respective seat and control the seat
heating manually instead.
Ventilating
Page 59 of 305
Seats, restraints57Adjust ventilating to the desired
setting by pressing A for the
respective seat one or more times.
The control indicator in the button
indicates the setting.
Ventilated seats are operational when
engine is running and during an
Autostop.
Stop-start system 3 157.
Massage
Press c to switch on the back
massage function.
To switch off, press c again.
After 10 minutes the massage
function is switched off automatically.Rear seats
Armrest
Fold armrest down.
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58Seats, restraintsHeating
Activate seat heating by pressing ß
for the respective rear outer seat.
Activation is indicated by the LED in
the button.
Press ß once more to deactivate seat
heating.
Prolonged use for people with
sensitive skin is not recommended.
Seat heating is operational when engine is running and during an
Autostop.
Stop-start system 3 157.
Seat belts
The seat belts are locked during
heavy acceleration or deceleration of
the vehicle, holding the occupants in
the seat position. Thereby the risk of
injury is considerably reduced.
9 Warning
Fasten seat belt before each trip.
In the event of an accident, people
not wearing seat belts endanger their fellow occupants and
themselves.
Seat belts are designed to be used by only one person at a time.
Child restraint system 3 67.
Periodically check all parts of the belt
system for damage, soiling and
proper functionality.
Have damaged components replaced by a workshop. After an accident,
have the belts and triggered belt
pretensioners replaced by a
workshop.
Note
Make sure that the belts are not
damaged by shoes or sharp-edged objects or trapped. Prevent dirt from getting into the belt retractors.
Seat belt reminder
Indicates seat belt status for front seats by control indicators X and k,
or for rear seats by the symbol X in
the Driver Information Centre 3 108.
Belt force limiters
Stress on the body is reduced by the
gradual release of the belt during a
collision.
Page 96 of 305
94Instruments and controlsThe recommended grip areas of the
steering wheel are heated quicker
and to a higher temperature than the
other areas.
Heating is operational when the
engine is running and during an
Autostop.
Stop-start system 3 157.
Horn
Press j.
Windscreen wiper and
washer
Windscreen wiper with adjustable
wiper intervalHI:fastLO:slowINT:interval wipingOFF:off
For a single wipe when the
windscreen wiper is off, press the
lever downwards to position 1x.
Do not use if the windscreen is frozen.
Switch off in car washes.
Adjustable wiper interval
Wiper lever in position INT.
Turn the adjuster wheel to adjust the
wiping frequency.
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Instruments and controls99Touch 12-24 Hr on the right side of the
screen to select a time mode.
If 12-hour mode is selected, a third
column for AM and PM setting is
displayed. Select the desired option.
Set date
Select Set Date to enter the
respective submenu.
Note
If date information is automatically
provided, this menu item is not
available.
Select Auto Set at the bottom of the
screen. Activate either On - RDS or
Off - Manual .
If Off - Manual is selected, adjust the
date by touching n or o.
Clock display
Select Clock Display to enter the
respective submenu.
To turn off the digital clock display in
the menus, select Off.Power outlets
A 12 V power outlet is located in the
centre console. With ignition off, this
power outlet is deactivated.
Do not exceed the maximum power
consumption of 120 W.
Electrical accessories that are
connected must comply with the
electromagnetic compatibility
requirements laid down in
DIN VDE 40 839.
Do not connect any current-delivering
accessories, e.g. electrical charging
devices or batteries.
Do not damage the outlets by using
unsuitable plugs.
Stop-start system 3 157.
USB port
Depending on the infotainment
system, one or two USB ports for
charging devices are located in
between the front seats. These ports
have also a data connection to the
Infotainment system. For further
information, see Infotainment
manual.
Page 114 of 305

112Instruments and controlsIlluminates
A fault in the system is present.
Continued driving is possible. Driving
stability, however, may deteriorate depending on road surface
conditions.
Have the cause of the fault remedied by a workshop.
Flashes
The system is actively engaged.
Engine output may be reduced and
the vehicle may be braked
automatically to a small degree.
Electronic Stability Control 3 174.
Traction Control system 3 173.
Traction Control system off
k illuminates yellow.
The system is deactivated.
Engine coolant temperature
W illuminates red.Illuminates when the engine is
running
Stop, switch off engine.Caution
Coolant temperature too high.
Check coolant level immediately
3 226.
If there is sufficient coolant, consult a workshop.
Preheating
! illuminates yellow.
Preheating of Diesel engine is
activated. Only activates when
outside temperature is low. Start the
engine when control indicator
extinguishes.
AdBlue
Y flashes yellow.
AdBlue level is low. Refill AdBlue
soon to avoid prevention of the
engine start.
AdBlue 3 163.
Tyre pressure monitoring system
w illuminates or flashes yellow.
Illuminates
Tyre pressure loss. Stop immediately and check tyre pressure.
Flashes
Fault in system or tyre without
pressure sensor mounted (e.g. spare
wheel). After 60 to 90 seconds the
control indicator illuminates
continuously. Consult a workshop.
Engine oil pressure
I illuminates red.
Illuminates when the ignition is
switched on and extinguishes shortly after the engine starts.
Page 115 of 305

Instruments and controls113Illuminates when the engine is
runningCaution
Engine lubrication may be
interrupted. This may result in
damage to the engine and/or
locking of the drive wheels.
1. Select neutral gear.
2. Move out of the flow of traffic as quickly as possible without
impeding other vehicles.
3. Switch off ignition.
9 Warning
When the engine is off,
considerably more force is needed
to brake and steer.
During an Autostop, the brake
servo unit will still be operational.
Do not remove key until vehicle is stationary, otherwise the steering
wheel lock could engage
unexpectedly.
Keep engine turned off and let the
vehicle be towed to a workshop
3 225.
Low fuel Y illuminates or flashes yellow.
Illuminates
Level in fuel tank is too low.
Flashes
Fuel used up. Refuel immediately.
Never run the tank dry.
Refuelling 3 214.
Catalytic converter 3 163.
Bleeding the diesel fuel system
3 229.
Immobiliser
d flashes yellow.
Fault in the immobiliser system. The
engine cannot be started.
Exterior light 8 illuminates green.The exterior lights are on 3 130.
High beam C illuminates blue.
Illuminated when high beam is on or
during headlight flash 3 133.
High beam assist f illuminates green.
The high beam assist is activated
3 131.
LED headlights f illuminates or flashes yellow.
Illuminates
Fault in the system.
Seek the assistance of a workshop.
Flashes
System is switched to symmetrical
low beam.
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118Instruments and controlsonly resets the values on the current
displayed page. The other Trip page
stays unaffected.
Fuel /Fuel InformationFuel Range
Range is calculated from current fuel tank level and current consumption. The display shows average values.
After refuelling, the range is updated
automatically after a brief delay.
When the fuel level in the tank is low,
a message appears on the display
and control indicator Y in the fuel
gauge illuminates.
When the tank must be refuelled
immediately, a warning message
appears and remains on the display.
Additionally, control indicator Y in the
fuel gauge flashes 3 113.Instant Fuel Economy
Display of the instantaneous
consumption.
Oil Life
Indicates an estimate of the oil's
useful life. The number in % means
the remaining of current oil life 3 107.
Tyre Pressure
Checks tyre pressure of all wheels
during driving 3 251.
Timer
Baselevel display: start and stop
timer with Å. To reset, hold Å when
timer is not running.
Uplevel display: To start or stop timer, press Å and Å again. To reset,
press Å, choose Reset and confirm
with Å.
Traffic Sign Memory
Displays the detected traffic signs for
the current route section 3 206.
Following Distance
Displays the distance in seconds to a
preceding moving vehicle 3 189. If
Adaptive cruise control is active this
page shows the following distance
setting instead.
Driver Assistance
Displays the status of several driver
assistance systems:
Adaptive cruise control 3 179.
Forward collision alert 3 187.Lane keep assist 3 210.
AdBlue Level
Displays the level of the AdBlue tank 3 163.
Eco information menu, @
● Top Consumers
● Economy Trend
● ECO Index
On Uplevel display the pages Top
Consumers , Economy Trend and
ECO Index are displayed in the Info
Menu, see above.
Top Consumers
List of top comfort consumers
currently switched on is displayed in
descending order. Fuel saving
potential is indicated.
During sporadic driving conditions,
the engine will activate the heated
rear window automatically to increase
the engine load. In this event, the
heated rear window is indicated as
one of the top consumers, without
activation by the driver.