104Instruments and controlsWarning chimesOnly one warning chime will sound at a time.
A corresponding message may also
appear in the Driver Information
Centre when a warning chime is
sounded.
When starting the engine or whilst driving:
● If seat belt is not fastened 3 55.
● If the parking assist detects an object 3 154.
● If the vehicle speed briefly exceeds a set limit 3 150,
3 153.
● If a door or the bonnet is not properly closed when vehicle
exceeds a certain speed.
● During activation and deactivation of alarm monitoring
of vehicle inclination 3 38.
● If there is a fault in the brake system 3 98.
● If the vehicle battery is not charging 3 98.● If engine lubrication is interrupted
3 100.
● If AdBlue needs to be refilled or a
fault is present 3 139.
● If the electronic key is outside of the detection range.
Electronic key system 3 24,
Power button 3 131.
When the vehicle is parked and/or
the driver's door is opened:
● If the key has been left in the ignition.
● If the electronic key has been left
in the card reader.
Electronic key system 3 24,
Power button 3 131.
● If the vehicle is in an Autostop. Stop-start system 3 135.
● If the exterior lights are on 3 108.Engine oil level
If the minimum engine oil level is
reached, a message is displayed in
the Driver Information Centre 3 102
for 30 seconds after the engine is
started.
Check oil level 3 165.
138Driving and operatingParking9Warning
● Do not park the vehicle on an
easily ignitable surface. The
high temperature of the
exhaust system could ignite the
surface.
● Always apply parking brake without pressing release
button. Apply as firmly as
possible on a downhill slope or
uphill slope. Depress brake
pedal at the same time to
reduce operating force.
● Switch off the engine.
● If the vehicle is on a level surface or uphill slope, engage
first gear. On an uphill slope,
turn the front wheels away from
the kerb.
If the vehicle is on a downhill
slope, engage reverse gear.
Turn the front wheels towards the kerb.
● Close the windows.
● Remove the ignition key from the ignition switch. Turn the
steering wheel until the
steering wheel lock is felt to
engage.
● Lock the vehicle by pressing e on
the remote control 3 26.
Activate the anti-theft alarm
system 3 38.
● The engine cooling fans may run
after the engine has been
switched off 3 164.
Caution
After running at high engine
speeds or with high engine loads,
operate the engine briefly at a low load or run in neutral for approx.30 seconds before switching off, in
order to protect the turbocharger.
Vehicle storage 3 163.
Engine exhaust9 Danger
Engine exhaust gases contain
poisonous carbon monoxide,
which is colourless and odourless and could be fatal if inhaled.
If exhaust gases enter the interior
of the vehicle, open the windows.
Have the cause of the fault
rectified by a workshop.
Avoid driving with an open load
compartment, otherwise exhaust
gases could enter the vehicle.
Diesel particle filter
The diesel particle filter system filters
harmful soot particles out of the
exhaust gases. The system includes
a self-cleaning function that runs
automatically during driving without
any notification.
The filter is cleaned by periodically
burning off the soot particles at high
temperature. This process takes
place automatically under set driving
Driving and operating155Note
In versions with Info-Display
indication, the function can be
deactivated via the Infotainment
system. Refer to Infotainment
manual for further information.
Temporary deactivation
Temporarily deactivate the system by
pressing r on the instrument panel
with the ignition on. LED illuminates in the button when deactivated.
When reverse gear is selected, no
acoustic signal will sound, indicating
deactivation.
The function is reactivated by
pressing r again or the next time
the ignition is switched on.
Permanent deactivation
Permanently deactivate the system
by pressing and holding r on the
instrument panel for approx.
three seconds with the ignition on.
LED illuminates continuously in the
button when permanently
deactivated.The system is deactivated and will not
operate. When reverse gear is
selected, no acoustic signal will
sound, indicating deactivation.
The function is reactivated by
pressing and holding r for approx.
three seconds.
Fault
If the system detects an operating
fault, when selecting reverse gear a
continuous acoustic alarm will sound
for approx. five seconds, a
corresponding message appears in
the Driver Information Centre 3 102
and F illuminates in the instrument
cluster 3 98. Consult a workshop to
have the cause of the fault remedied.Caution
When reversing, the area should
be free from obstacles which could impact on the underside of the
vehicle.
Impact to the rear axle, which may
not be visible, could lead to
uncharacteristic changes in the
vehicle handling. In the event of
such an impact, consult a
workshop.
Vehicle messages 3 103.
Basic notes on parking assist
system
9 Warning
Under certain circumstances,
various reflective surfaces on
objects or clothing as well as
external noise sources may cause the system to fail to detect
obstacles.
Special attention must be paid to
low obstacles which can damage
the lower part of the bumper.
182Vehicle careNo.Circuit1Battery backup (with electronic
key system)2Adaptations3Adaptations4Vehicle battery (with electronic
key system)5Additional heating and ventila‐
tion / Air conditioning system6Supplementary heating and
ventilation system7Electric exterior mirrors / Addi‐
tional adaptations8Heated exterior mirrors9Radio / Multimedia / Electric
exterior mirrors / Diagnostic
socket10Multimedia / Trailer hitch11Courtesy lights / Battery
discharge protectionNo.Circuit12Right-hand high beam / Left-
hand low beam / Sidelights /
Right-hand daytime running
light13Hazard warning flashers / Turn
and lane-change signals14Central locking15Left-hand high beam / Right-
hand low beam / Tail lights /
Left-hand daytime running light16Front fog lights / Rear fog lights /
Number plate lighting17Alarm / Horn / Lighting / Wiper18Instrument cluster19Heating and ventilation system20Rear window wiper / Wind‐
screen washer pump / Horn21General battery22Reversing lights23Brake switchNo.Circuit24Fuel injection / Starter25Airbag / Steering column lock26Passenger power window27Power steering28Brake lights29Battery backup (with electronic
key system)30Service display31Cigarette lighter / Power outlet32Heating and ventilation system33Brake lights / ABS / Immobiliser34Interior lighting / Air conditioning35Starting with electronic key
system36Rear window wiper37Warning chimes38Load compartment power outlet39Driver power window
224IndexAAbsorptive Glass Mat battery .....169
Accessories and vehicle modifications .......................... 163
Adaptive forward lighting ...........110
AdBlue ................ 100, 105, 139, 203
AdBlue tank ................................ 217
Adjustable air vents ...................127
AGM battery ............................... 169
Airbag and belt tensioners ...........97
Airbag deactivation ................64, 97
Airbag label............................. 59, 64
Airbag system .............................. 59
Air conditioning regular operation ................................ 128
Air conditioning system .............. 117
Air intake .................................... 128
Air recirculation ...................117, 196
Air vents...................................... 127
Alert ............................................ 104
Antifreeze ................................... 167
Antilock brake system ................ 146
Antilock brake system (ABS) .......99
Anti-theft alarm system ................38
Anti-theft bolts............................. 192
Anti-theft locking system .............. 37
Anti-theft security lock ..................25
Appearance care ........................198
Armrest ........................................ 50
Ashtrays ....................................... 90Automatic anti-dazzle ..................42
Automatic fuel cut-off ..................134
Automatic light control ...............109
Automatic locking ........................31
Autostop ............................. 133, 135
Auxiliary heater ........................... 121
B
Battery ........................................ 169
Battery discharge protection ......115
Battery, jump starting.................. 195
Belts.............................................. 55
Bench seat.................................... 76
BlueInjection ............................... 139
Bonnet ....................................... 164
Bottle holders................................ 76
Brake and clutch fluid .................203
Brake assist ............................... 147
Brake fluid .................................. 168
Brakes ............................... 146, 168
Brake system ............................... 98
Breakdown.................................. 196
Bulb replacement ....................... 173
C Capacities .................................. 217
Car Pass ...................................... 22
Catalytic converter .....................139
Central locking system ................26
Centre high-mounted brake light 175
Changing tyre and wheel size ...188