Driving and operating161Vehicles with power button
Manual transmission: operate clutch
and brake pedal.
Automatic transmission: operate
brake pedal and move selector lever
to P or N.
Manual transmission automated:
operate brake pedal.
Do not operate accelerator pedal.
Press and release Engine Start/Stop:
an automatic procedure operates the
starter with a short delay until the
engine is running, see automatic
starter control.
Before restarting or to switch off the
engine when vehicle is stationary, press Engine 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 3 162.
● Automatic transmission or manual transmission automated:
during an Autostop, the engine
can be started by releasing the
brake pedal 3 162.
Emergency shut off during driving
If the engine needs to be switched off during driving in case of emergency,
press Engine Start/Stop for longer
than two seconds or press twice
briefly within five seconds.9 Danger
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.
Starting the vehicle at low
temperatures
Starting the engine without additional
heaters is possible down to -25 °С for
diesel engines and -30 °C for petrol
engines. Required is an engine oil
with the correct viscosity, the correct fuel, performed services and a
sufficiently charged vehicle battery.
With temperatures below -30 °C the
automatic transmission requires a
warming phase of approx.
five minutes. The selector lever must
be in position P.
Automatic starter control
This function controls the engine
starting procedure. The driver does
not need to hold the key in position 3
or to hold Engine Start/Stop pressed.
Once applied, the system will go on
166Driving and operatingbutton. Turn the steering wheel
until the steering wheel lock is
felt to engage.
For vehicles with automatic
transmission, the key can only
be removed when the selector
lever is in position P.
For vehicles with manual
transmission automated, the key can only be removed from
the ignition switch when the
parking brake is applied.
● Lock the vehicle.
● Activate the anti-theft alarm system.
● The engine cooling fans may run
after the engine has been
switched off 3 231.
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.
Note
In the event of an accident with
airbag deployment, the engine is
switched off automatically if the
vehicle comes to a standstill within a
certain time.
Emergency operation under
extreme cold temperatures
9 Warning
This emergency operation may
only be carried out in case of
extremely cold temperatures and if the vehicle is parked on a levelsurface.
In countries with extreme cold
temperatures it may be necessary to
park the vehicle without applied
parking brake.
This is an emergency operation to
avoid freezing of the parking brake.
Vehicles equipped with manual
transmission automated, electric
parking brake and power button
On vehicles with manual transmission
automated the ignition can only be
switched off if the parking brake is
applied. Therefore the following items must be carried out to release the
electric parking brake:
1. Apply electric parking brake and switch off ignition.
2. Switch on ignition by pressing and
holding Engine Start/Stop for six
seconds without operating brake
pedal.
3. Press brake pedal and release electric parking brake.
4. Switch off ignition.
Vehicles equipped with manual
transmission automated, electric
parking brake and ignition switch
On vehicles with manual transmission
automated the ignition can only be
switched off if the parking brake is
applied. Therefore the following items
must be carried out to release the
electric parking brake:
224Driving and operatingTrailer hitch
General information
Only use towing equipment that has
been approved for your vehicle.
Entrust retrofitting of towing
equipment to a workshop. It may be
necessary to make changes that
affect the cooling system, heat
shields or other equipment.
The bulb outage detection function for trailer brake light cannot detect a
partial bulb outage, e.g. in case of four
times five watt bulbs, the function only detects lamp outage when only a
single five Watt lamp remains or none
remain.
Fitting of towing equipment could
cover the opening of the towing eye.
If this is the case use the coupling ball bar for towing. Always keep the
coupling ball bar in the vehicle when
not in use.Driving characteristics and
towing tips
Before attaching a trailer, lubricatethe coupling ball. However, do not do
so if a stabiliser, which acts on the
coupling ball, is being used to reduce snaking movements.
During trailer towing do not exceed a
speed of 80 km/h. A maximum speed
of 100 km/h is only appropriate if an
oscillation damper is used and the
permissible gross trailer weight does
not exceed the vehicle’s curb weight.
For trailers with low driving stability
and caravan trailers, the use of an
oscillation damper is strongly
recommended.
If the trailer starts snaking, drive more
slowly, do not attempt to correct the
steering and brake sharply if
necessary.
When driving downhill, drive in the
same gear as if driving uphill and
drive at a similar speed.
Adjust tyre pressure to the value
specified for full load 3 295.Trailer towing
Trailer loadsThe permissible trailer loads are
vehicle and engine-dependent
maximum values which must not be
exceeded. The actual trailer load is the difference between the actual
gross weight of the trailer and the
actual coupling socket load with the
trailer coupled.
The permissible trailer loads are
specified in the vehicle documents. In
general, they are valid for gradients
up to 12%.
The permissible trailer load applies
up to the specified incline and at sea
level. Since engine power decreases
as altitude increases due to the air
becoming thinner, therefore reducing
climbing ability, the permissible gross train weight also decreases by 10%for every 1000 metres of altitude. The gross train weight does not have to be
reduced when driving on roads with
slight inclines (less than 8%, e.g.
motorways).
228Driving and operatingOpen the protective flap and turn the
key to position c to unlock the
coupling ball bar.
Pull out rotary handle and turn
clockwise as far as it will go. Pull out coupling ball bar downwards.
Insert sealing plug in opening.
Fold away connecting socket.
On Sports Tourer insert cover into
rear bumper as shown in the
illustration.
Stow the coupling ball bar in the bag
and secure by fixing the strap through the rear right lashing eye. Wrap
around twice and tighten the strap to
secure the bag.
Trailer stability assist
If the system detects snaking
movements, engine power is reduced
and the vehicle/trailer combination is selectively braked until the snaking
ceases. While system is working keep
steering wheel as still as possible.
Trailer stability assist is a function of
the Electronic Stability Control 3 182.
250Vehicle careNo.Circuit32DC transformer/LED display/
Electrical heater/Climate
control/Glow plug controller33Anti theft warning horn34Horn35Power outlet load compartment36Right high beam (Halogen)/
Right low beam (LED)37Left high beam (Halogen)38LED headlight/Automatic head‐
light range adjustment39Front fog light40Central Gateway Module41Water in fuel sensor/Water
pump42Manual headlight range adjust‐
ment43Fuel pump44Rear view camera/Inside rear
view mirror/Trailer moduleNo.Circuit45LED headlight left/Automatic
headlight range adjustment left46Instrument cluster47Steering column lock48Rear wiper49Outside rearview mirror50LED headlight right/Automatic
headlight range adjustment
right51Left low beam (LED)52Engine control module/Trans‐
mission control module53Diesel exhaust system54Windscreen wiper55Electrical rear seat folding56–57–
After having changed defective fuses,
close the fuse box cover and press
until it engages.
If the fuse box cover is not closed
correctly, malfunction may occur.
Instrument panel fuse boxThe fuse box is located behind a
cover.
Pull the cover on the left side to
remove.
Vehicle care251No.Circuit1Rear seat heating (only for vehi‐cles without alarm horn)2Climate control system, fan3Power seat driver side4Power seat passenger side5–6Power window front7ABS8Heated steering wheel9Body control module 810Power window rear11Sunroof12Body control module 413Seat heating (only on vehicles
without alarm horn)14Exterior mirror15Body control module 116Body control module 7No.Circuit17Body control module 618Body control module 319Data link connector20Airbag system21Climate control system22Central locking system, tailgate23Electronic key system24Power seat memory function25Airbag system steering wheel26Ignition switch/Steering column
lock27Body control module 228USB socket29Cigarette lighter/Power outlet
front30Selector lever31Rear window wiper32Transmission control module
312Head restraint adjustment .............8
Head restraints ............................ 47
Heated mirrors ............................. 41
Heated rear window ..................... 44
Heated steering wheel .................93
Heating .................................. 55, 57
Heating and ventilation system . 146
High beam ......................... 113, 136
High beam assist ........................113
Hill start assist ........................... 181
Horn ....................................... 14, 93
I
Identification plate .....................282
Ignition switch positions .............157
Immobiliser .......................... 39, 113
Indicators .................................... 103
Info Display ................................. 121
Information displays.................... 115
Instrument cluster ......................100
Instrument panel fuse box .........250
Instrument panel illumination .....247
Instrument panel illumination control .................................... 143
Instrument panel overview ........... 10
Interior care ............................... 276
Interior lighting ............................ 143
Interior lights ...................... 143, 247
Interior mirrors .............................. 41Interruption of power supply ......174
Introduction .................................... 3
J Jump starting ............................. 271
K Key, memorised settings ..............25
Keys ............................................. 21
Keys, locks ................................... 21
L
Lane keep assist ................111, 216
Lashing eyes ............................... 82
LED headlights ...................113, 137
Lighting features .........................144
Light switch ................................ 135
Load compartment ................31, 74
Load compartment cover .............80
Load compartment fuse box ......252
Loading information .....................89
Low fuel ..................................... 113
M
Malfunction indicator light ..........110
Manual anti-dazzle ......................41
Manual mode .....................173, 177
Manual seat adjustment ...............49
Manual transmission .................. 174
Manual transmission automated 175
Manual windows ..........................42Massage....................................... 56
Maximum speed ......................... 256
Memorised settings ......................25
Midlevel display .......................... 115
Mirror adjustment ........................... 9
Misted light covers .....................142
N Natural gas ......................... 105, 221
New vehicle running-in ..............157
Number plate light .....................246
O
Object detection systems ...........201
Odometer ................................... 104 Oil, engine .......................... 279, 284
OnStar ........................................ 131
Outside temperature ....................96
Overrun cut-off ........................... 162
P Parking ................................ 19, 165
Parking assist ............................ 201
Parking brake ............................ 179
Parking lights ............................. 142
Particulate filter ........................... 167
Performance .............................. 289
Performing work ........................231
Pollen filter ................................. 155
Power button .............................. 158
Power outlets ............................... 98
313Power seat adjustment ................51
Power windows ............................ 42
Preheating ................................. 112
Puncture ..................................... 266
Q
Quickheat ................................... 154
R Radio Frequency Identification (RFID) ..................................... 308
Radio remote control ...................22
REACH ....................................... 302
Reading lights ............................ 143
Rear floor storage cover ..............82
Rear fog light .............114, 142, 240
Rear seats .................................... 56
Rear storage ................................. 80
Rear view camera ...................... 210
Rear window wiper and washer ..95
Recommended fluids and lubricants ........................ 279, 284
Refuelling ................................... 221
Registered trademarks ...............305
Retained power off .....................160
Reversing lights .........................142
Ride control systems ..................181
Roof .............................................. 45
Roof load ...................................... 89
Roof rack ..................................... 89S
Safety belts ................................... 57
Safety net .................................... 85
Seat adjustment ............................. 7 Seat belt ........................................ 8
Seat belt reminder .....................108
Seat belts ..................................... 57
Seat heating Seat heating, front .....................55
Seat heating, rear .....................57
Seat position ................................ 48
Selective catalytic reduction .......169
Selector lever ..................... 172, 176
Service ............................... 155, 278
Service display .......................... 107
Service information ....................278
Side airbag system ......................63
Side blind spot alert ....................209
Sidelights .................................... 135
Side turn lights ........................... 246
Software acknowledgement .......302
Software update ......................... 304
Spare wheel ............................... 266
Speed limiter....................... 114, 186
Speedometer ............................. 103
Sport mode ................................ 183
Starting and operating ................157
Starting off ................................... 17
Starting the engine ....................160
Steering ...................................... 157Steering wheel adjustment ......9, 92
Steering wheel controls ...............92
Stop-start system........................ 162
Storage ......................................... 72
Storage compartments .................72
Sunroof ........................................ 45
Sunvisor lights ........................... 144
Sun visors .................................... 44
Symbols ......................................... 4
T
Tachometer ............................... 105
Tail lights ................................... 240
Three-point seat belt .................... 58
Tools .......................................... 254
Tow bar....................................... 224 Towing ................................ 224, 273
Towing another vehicle .............274
Towing equipment .....................225
Towing the vehicle .....................273
Traction Control system ............. 181
Traction Control system off......... 112
Traffic sign assistant ...........114, 212
Trailer coupling ........................... 224
Trailer stability assist .................228
Trailer towing ............................. 224
Transmission ............................... 16
Transmission display .........171, 175
Tread depth ............................... 261
Trip odometer ............................ 104