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Keys, doors and windows29Windows
Windscreen
Heat-reflecting windscreen The heat-reflecting windscreen has a
coating which reflects solar radiation.
Also data signals, e.g. from toll
stations, might be reflected.
The marked areas of the windscreen
behind the interior mirror are not
covered with the coating. Devices for
electronic data recording and fee
payment must be attached in these
areas. Otherwise data recording
malfunctions may occur.
Windscreen stickers
Do not attach stickers such as toll
road stickers or similar on the
windscreen in the area of the interior
mirror. Otherwise the detection zone
of the sensor and the view area of the camera in the mirror housing could be
restricted.
Manual windows The door windows can be opened or
closed with the window cranks.
Power windows9 Warning
Take care when operating the
power windows. Risk of injury,
particularly to children.
If there are children on the rear seats, switch on the child safety
system for the power windows.
Keep a close watch on the
windows when closing them.
Ensure that nothing becomes
trapped in them as they move.
Switch on ignition to operate power
windows.
Operate the switch for the respective
window by pushing to open or pulling to close.
Pushing or pulling gently to the first
detent: window moves up or down as long as the switch is operated.
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30Keys, doors and windows
Pushing or pulling firmly to the second
detent and then releasing: window
moves up or down automatically with
safety function enabled. To stop
movement, operate the switch once
more in the same direction.
Safety function If the window glass encounters
resistance above the middle of the
window during automatic closing, it is
immediately stopped and opened
again.
Override safety function
In the event of closing difficulties due to frost or the like, switch on the
ignition, then pull the switch to the first
detent and hold. The window moves
up without safety function enabled.
To stop movement, release the
switch.Child safety system for rear
windows
Press z to deactivate rear power
windows.
To activate, press z again.
Overload If the windows are repeatedly
operated within short intervals, the
window operation is disabled for
some time.
Initialising the power windows
If the windows cannot be closed
automatically (e.g. after
disconnecting the vehicle battery),
activate the window electronics as
follows:
1. Close doors.
2. Switch on ignition.
3. Pull switch until the window is closed and keep pulling for
additional 2 seconds.
4. Repeat for each window.
Heated rear window
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Keys, doors and windows31
Operated by pressing Ü.
The LED in the button indicates
activation.
Heating works with the engine
running and is switched off
automatically after a short time.
Sun visors The sun visors can be folded down orswivelled to the side to prevent
dazzling.
The sun visors mirror covers should
be closed when driving.
If the sun visors have a vanity mirror
lamp, the lamp will illuminate when
opening the vanity mirror cover.Roof
Sunroof9 Warning
Take care when operating the
sunroof. Risk of injury, particularly to children.
Keep a close eye on the movable parts when operating them.
Ensure that nothing becomes
trapped in them as they move.
Switch on ignition to operate the
sunroof.
Open or close
Press switch 1 or switch 2 gently to
the first detent: sunroof is opened or
closed as long as the switch is
operated.
Press switch 1 or switch 2 firmly to the
second detent and then release: the
sunroof is opened or closed
automatically with safety function
enabled. To stop movement, operate
the switch once more.
Raise or close
Press switch 3 or switch 4: sunroof is
raised or closed automatically with
safety function enabled.
If the sunroof is raised, it can be
opened in one step by pressing
switch 1.
Sunblind The sunblind is operated manually.
Close or open the sunblind by sliding.
When the sunroof is open, the
sunblind is always open.
Dirt and debris may collect on the
sunroof seal or in the track that could
cause an issue with sunroof
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32Keys, doors and windows
operation, noise or plug the water
drainage system. Periodically open
the sunroof and remove any
obstacles or loose debris. Wipe the
sunroof seal and roof sealing area
using a clean cloth, mild soap, and
water. Do not remove grease from the sunroof.
General hints Safety function
If the sunroof encounters resistance
during automatic closing, it is
immediately stopped and opened
again.
Override safety function
In the event of closing difficulties due to frost or the like, press and hold
switch 2. The sunroof closes without
safety function enabled. To stop
movement, release the switch.
Initialising after a power failure
After a power failure, it may only be
possible to operate the sunroof to a
limited extent. Have the system
initialised by your workshop.
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Instruments and controls75
Windscreen washer
Pull lever. Washer fluid is sprayed
onto the windscreen and the wiper
wipes a few times.
Rear window wiper/washer
Press the rocker switch to activate the
rear window wiper:
upper switch=continuous
operationlower switch=intermittent
operationmiddle position=off
Push lever. Washer fluid is sprayed
onto the rear window and the wiper
wipes a few times.
Do not use if the rear window is
frozen.
Switch off in car washes.
The rear window wiper comes on
automatically when the windscreen
wiper is switched on and reverse gear
is engaged.
Activation or deactivation of this
function can be changed in the menu
Settings in the Info-Display.
Vehicle personalisation 3 100.
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Instruments and controls93
switched-off consumer disappears
from the list and the consumption
value will be updated.
During sporadic driving conditions,
the heated rear window is activated automatically to increase engine
load. In this event, the heated rear
window is indicated as one of the
top consumers, without activation
by the driver.
■ Economy Trend : Displays the
average consumption development
over a distance of 50 miles. Filled
segments display the consumption
in 5 mile steps and shows the effect of topography or driving behaviour
on fuel consumption.
Graphic-Info-Display,
Colour-Info-Display Depending on the vehicle
configuration the vehicle has a
Graphic-Info-Display or Colour-Info-
Display . The Info-Display is located in
the instrument panel above the
Infotainment system.
Graphic-Info-DisplayGraphic-Info-Display indicates: ■ time 3 76
■ outside temperature 3 76
■ date 3 76
■ Infotainment system, see description in the Infotainment
system manual
■ settings for vehicle personalisation 3 100
Colour-Info-Display
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96Instruments and controls
No.Vehicle message28Right rear turn signal failure53Tighten gas cap54Water in diesel fuel filterS68Service power steeringS73Service all-wheel drive systemS75Service air conditioningS79Top up engine oilS81Service transmissionS82Change engine oil soonS84Engine power is reducedS89Service vehicle soon128Bonnet open134Park assist fault, clean
bumperS136Service parking assist174Low batteryNotice
"S" means "Service vehicle soon".
Seek the assistance of a workshop
immediately.
Vehicle messages on the
Uplevel-Display and Uplevel- Combi-Display
The vehicle messages are displayed
as text. Follow the instructions given
in the messages.
The system displays messages
regarding the following topics:
■ service messages
■ anti-theft alarm system
■ brakes
■ drive systems
■ ride control systems
■ driver assistance systems
■ cruise control
■ speed limiter
■ parking assist systems
■ lighting, bulb replacement
■ adaptive forward lighting
■ doors, windows
■ traffic sign assistant
■ lane departure warning
■ load compartment, boot lid
■ radio remote control
■ seat belts
■ airbag systems
■ engine and transmission
■ tyre pressure
■ diesel particle filter
■ vehicle battery status
Page 99 of 229

Instruments and controls97Warning chimesWhen starting the engine or
whilst driving ■ If the door or bonnet is open.
■ If seat belt is not fastened.
■ If a certain speed is exceeded with parking brake applied.
■ If a warning message or a warning code appears in the Driver
Information Centre.
■ If the parking assist detects an object.
When the vehicle is parked and/ or the driver's door is opened ■ When the key is in the ignition switch.
■ With exterior lights on.
Battery voltage
When the battery voltage is running
low, a warning message or warning
code 174 will appear in the Driver
Information Centre.1. Switch off immediately any electrical consumers which are
not required for a safe ride, e.g.
seat heating, heated rear window
or other main consumers.
2. Charge the battery by driving continuously for a while or by
using a charging device.
The warning message or warning
code will disappear after the engine
has been started twice consecutively
without a voltage drop.
If the battery cannot be recharged,
have the cause of the fault remedied
by a workshop.Trip computer
The menus and functions can be
selected via the buttons on the turn signal lever 3 90.
Press MENU to select the Trip/Fuel
Information Menu , or select W on
the Uplevel-Combi-Display.