128Climate controlAir conditioning regularoperation
In order to ensure continuously
efficient performance, cooling must
be operated for a few minutes once a
month, irrespective of the weather
and time of year. Operation with
cooling is not possible when the
outside temperature is too low.
Service For optimal cooling performance, it is recommended to annually check the
climate control system, starting
three years after initial vehicle
registration, including:
● functionality and pressure test
● heating functionality
● leakage check
● check of drive belts
● cleaning of condenser and evaporator drainage
● performance check
Driving and operating1310:ignition off: some functions
remain active until key is
removed or driver's door is
opened, provided the ignition was
on previously1:ignition on power mode: ignition
is on, diesel engine is preheating, control indicators illuminate and
most electrical functions are
operable2:engine start: release key after
engine has been started
Steering wheel lock
Remove key from ignition switch and
turn steering wheel until it engages.
9 Danger
Never remove the key from
ignition switch during driving as
this will cause steering wheel lock.
Power button
The electronic key must be inside the
vehicle.
Engine start
Operate the clutch pedal (manual
transmission), the brake pedal and
press Start/Stop .Ignition on power mode without
starting the engine
Press Start/Stop without operating
clutch or brake pedal. Control
indicators illuminate and most
electrical functions are operable.Engine and ignition off
Press Start/Stop briefly in each mode
or when engine is running and vehicle
is stationary. Some functions remain
active until driver's door is opened,
provided the ignition was on
previously.Emergency shut off during driving
Press Start/Stop for 5 seconds
3 132. Steering wheel locks as soon
as vehicle is stationary.
Steering wheel lock
The steering wheel lock activates
automatically when:
● The vehicle is stationary.
● The ignition has been switched off.
To release steering wheel lock, open
and close driver's door and switch the ignition on power mode or start the
engine directly.
Driving and operating133Turn key briefly to position 2 and
release after engine has been
started.
Manual transmission: during an
Autostop, the engine can be started
by depressing the clutch pedal
3 134.
Automatic transmission: during an
Autostop, the engine can be started
by releasing the brake pedal 3 134.
Vehicles with power button● Manual transmission: operate clutch and brake pedal.
● Automatic transmission: operate brake pedal and move selector
lever to P or N.
● Do not operate accelerator pedal.
● Press Start/Stop button.
● Release button after starting procedure begins. Diesel engine
starts after control indicator ! for
preheating extinguishes.
● Before restarting or to switch off the engine when vehicle is
stationary, press Start/Stop once
more briefly.
To start the engine during an
Autostop:
● Manual transmission: during an Autostop, the engine can be
started by depressing the clutch
pedal 3 134.
● Automatic transmission: during an Autostop, the engine can be
started by releasing the brake
pedal 3 134.Emergency shut off during driving
If the engine needs to be switched offduring driving in case of emergency,
press Start/Stop for 5 seconds.9Danger
Switching off the engine during
driving may cause loss of power
support for brake and steering
systems. Assistance systems and
airbag systems are disabled.
Lighting and brake lights will
extinguish. Therefore power down the engine and ignition while
driving only when required in case of emergency.
Driving and operating135The engine will be switched off whilethe ignition stays on.Vehicles with automatic transmission
If the vehicle is at a standstill with
depressed brake pedal, Autostop is
activated automatically.
The engine will be switched off while
the ignition stays on.
The stop-start system will be disabled
on inclines of 12% or more.
Indication
An Autostop is indicated by control
indicator D.
During an Autostop, the heating and
brake performance will be
maintained.
Conditions for an Autostop
The stop-start system checks if each
of the following conditions is fulfilled.
● The stop-start system is not manually deactivated.
● The driver's door is closed or the driver's seat belt is fastened.
● The vehicle battery is sufficiently charged and in good condition.
● The engine is warmed up.
● The engine coolant temperature is not too high.
● The engine exhaust temperature is not too high, e.g. after driving
with high engine load.
● The ambient temperature is not too low or too high.
● The climate control system allows an Autostop.
● The brake vacuum is sufficient.
● The self-cleaning function of the exhaust filter is not active.
● The vehicle was driven at least at
walking speed since the last
Autostop.
Otherwise an Autostop will be
inhibited.Notice
The Autostop may be inhibited for
several hours after a battery
replacement or reconnection.
Certain settings of the climate control
system may inhibit an Autostop.
Climate control 3 119.
Immediately after higher speed
driving an Autostop may be inhibited.
New vehicle running-in 3 130.
Vehicle battery discharge protection
To ensure reliable engine restarts,
several vehicle battery discharge
protection features are implemented
as part of the stop-start system.
Power saving measures
During an Autostop, several electrical
features such as auxiliary electric
heater or rear window heating are
disabled or switched to a power
saving mode. The fan speed of the
climate control system is reduced to
save power.
204Vehicle care● See the Owner's Manual forfurther information.
● Explosive gas may be present in the vicinity of the vehicle battery.
Power saving mode This mode deactivates electrical
consumers to avoid excessive
discharging of the vehicle battery.
These consumers, such as the
Infotainment system, windscreen
wipers, low beam headlights,
courtesy light, etc. can be used for a
total maximum time of about
40 minutes after ignition is switched
off.
Changing into power saving mode
When power saving mode is
activated, a message appears in the
Driver Information Centre.
An active telephone call using the
hands-free option will be maintained
for around 10 minutes longer.Deactivating power saving mode
Power saving mode is deactivated
automatically when the engine is
restarted. Run the engine for a
sufficient charge:
● for less than 10 minutes to use the consumers for approx.
5 minutes
● for more than 10 minutes to use the consumers for up to approx.
30 minutes
Heating functionalities Notice
Individual heating functionalities,
such as heated seats or heated
steering wheel, may be temporarily
unavailable in the event of electrical
loading constraints. Functions will
be resumed after some minutes.Diesel fuel system bleeding
If the tank has been run dry, the diesel
fuel system must be bled. Switch on
the ignition three times for
15 seconds at a time. Then crank the
engine for a maximum of 40 seconds. Repeat this process after
no less than 5 seconds. If the engine fails to start, seek the assistance of a
workshop.
Wiper blade replacement Windscreen
Switch off ignition.
Vehicle care233Plastic body parts must not be treated
with wax or polishing agents.
Windows and wiper blades
Switch off wipers before handling in
their areas.
Use a soft lint-free cloth or chamois leather together with window cleaner and insect remover.
When cleaning the rear window from
inside, always wipe in parallel to the
heating element to prevent damage.
For mechanical removal of ice, use a
sharp-edged ice scraper. Press the
scraper firmly against the glass so
that no dirt can get under it and
scratch the glass.
Clean smearing wiper blades with a
soft cloth and window cleaner.
Remove dirt residues from smearing
wiper blades by using a soft cloth and window cleaner. Also make sure to
remove any residues such as wax,
insect residues and similar from the
window.
Ice residues, pollution and continuous
wiping on dry windows will damage or
even destroy the wiper blades.Glass panel
Never clean with solvents or abrasive
agents, fuels, aggressive media e.g.
paint cleaner, acetone-containing
solutions, acidic or highly alkaline
media or abrasive pads.
Wheels and tyres Do not use high-pressure jet
cleaners.
Clean rims with a pH-neutral wheel
cleaner.
Rims are painted and can be treated
with the same agents as the body.
Paintwork damage Rectify minor paintwork damage with
a touch-up pen before rust forms.
Have more extensive damage or rust areas repaired by a workshop.
Underbody
Some areas of the vehicle underbody
have a PVC undercoating while other critical areas have a durable
protective wax coating.After the underbody is washed, check
the underbody and have it waxed if
necessary.
Bitumen / rubber materials could
damage the PVC coating. Have
underbody work carried out by a
workshop.
Before and after winter, wash the
underbody and have the protective
wax coating checked.
Liquid gas system9 Danger
Liquid gas is heavier than air and
can collect in sink points.
Take care when performing work
at the underbody in a pit.
For painting work and when using a
drying booth at a temperature above
60 °C, the liquid gas tank must be
removed.
Do not make any modifications to the
liquid gas system.
266HHalogen headlights ....................205
Hazard warning flashers ............113
Headlight flash ........................... 109
Headlight range adjustment ......109
Headlights................................... 108 Headlights when driving abroad 110
Head restraint adjustment .............8
Head restraints ............................ 44
Heated mirrors ............................. 37
Heated rear window ..................... 40
Heated steering wheel .................79
Heated windscreen .......................41
Heating .................................. 50, 51
Heating and ventilation system . 118
High beam ........................... 97, 109
High beam assist ..........................97
Hill start assist ........................... 148
Horn ....................................... 13, 80
I
Identification plate .....................243
Ignition switch positions .............130
Immobiliser .................................. 36
Indicators ...................................... 88
Inductive charging ........................86
Info Display ................................. 100
Instrument cluster ........................87
Instrument panel fuse box .........213Instrument panel illumination
control .................................... 115
Instrument panel overview ........... 10
Interior care ............................... 234
Interior lighting ............................ 115
Interior lights ...................... 115, 211
Interior mirrors .............................. 38
Interruption of power supply ......144
Introduction .................................... 3
J
Jump starting ............................. 228
K Keys ............................................. 20
Keys, locks ................................... 20
L Lane departure warning .......94, 183
Lane keep assist ..................94, 184
Lashing eyes ............................... 73
LED headlights .............97, 110, 207
Lighting features .........................116
Light switch ................................ 108
Load compartment ................29, 69
Load compartment cover .............71
Loading information .....................76
Low beam ..................................... 97
Low fuel ....................................... 96M
Malfunction indicator light ............92
Manual anti-dazzle ......................38
Manual mode ............................. 143
Manual seat adjustment ...............46
Manual transmission .................. 145
Mirror adjustment ........................... 9
Misted light covers .....................115
N New vehicle running-in ..............130
Number plate light .....................211
O Object detection systems ...........169
Odometer ..................................... 88
Oil, engine .......................... 241, 245
Outside temperature ....................82
Overrun cut-off ........................... 134
P Panoramic view system ..............178
Parking ................................ 19, 136
Parking assist ............................ 169
Parking brake ............................ 146
Parking lights ............................. 114
Particulate filter ........................... 137
Performance .............................. 249
Performing work ........................199
Power button .............................. 131
Power outlets ............................... 84
267Power seat adjustment ................48
Power windows ............................ 39
Preheating ................................... 95
Puncture ..................................... 225
Q
Quickheat ................................... 126
R Radio Frequency Identification (RFID) ..................................... 263
Radio remote control ...................21
Rain sensor .................................. 97
REACH ....................................... 257
Reading lights ............................ 116
Rear floor storage cover ..............72
Rear fog light ...............97, 114, 207
Rear seats .................................... 51
Rear view camera ...................... 181
Rear window wiper and washer ..82
Recommended fluids and lubricants ........................ 241, 245
Refuelling ................................... 189
Registered trademarks ...............260
Reversing lights .........................115
Ride control systems ..................149
Roadside assistance ..................106
Roller blinds ................................. 42
Roof .............................................. 42
Roof load ...................................... 76
Roof rack ..................................... 75S
Safety net .................................... 73
Seat adjustment ............................. 7 Seat belt ........................................ 8
Seat belt reminder .......................91
Seat belts ..................................... 51
Seat heating ................................. 50
Seat heating, rear .....................51
Seat position ................................ 45
Selective catalytic reduction .......138
Selective ride control ..................150
Selector lever.............................. 142
Service ............................... 128, 237
Service display ............................ 90
Service information ....................237
Service vehicle soon .................... 93
Side airbag system ......................58
Side blind spot alert ..............97, 177
Sidelights .................................... 108
Side turn lights ........................... 210
Software acknowledgement .......258
Software update ......................... 259
SOS ............................................ 106
Spare wheel ............................... 225
Speed limiter......................... 98, 155 Speedometer ............................... 88
Sport mode ................................ 151
Starting and operating ................130
Starting off ................................... 17
Starting the engine ....................132Steering...................................... 130
Steering wheel adjustment ......9, 79
Steering wheel controls ...............79
Stop engine .................................. 93
Stop-start system........................ 134
Storage ......................................... 68
Storage compartments .................68
Sunvisor lights ........................... 116
Sun visors .................................... 42
Symbols ......................................... 4
System check ............................... 93
T Tachometer ................................. 89
Tailgate ......................................... 29
Tail lights ................................... 207
Three-point seat belt .................... 52
Tools .......................................... 215
Tow bar....................................... 191
Towing ................................ 191, 230
Towing another vehicle .............231
Towing equipment .....................192
Towing the vehicle .....................230
Trailer coupling ........................... 191
Trailer stability assist .................194
Trailer towing ............................. 191
Transmission ............................... 17
Transmission display .................142
Tread depth ............................... 219
Trip odometer .............................. 88