Driving and operating137Driving hints
Control of the vehicle
Never coast with engine not
running (except during Autostop)
Many systems will not function in this
situation (e.g. brake servo unit, power steering). Driving in this manner is a
danger to yourself and others. All
systems function during an Autostop,
but there will be a controlled reduction
in power steering assist and vehicle
speed is reduced.
Stop-start system 3 139.
Idle boost
If charging of the battery is required
due to battery condition, the power
output of the generator has to be
increased. This will be achieved by an idle boost which may be audible. A
message is displayed in the Driver
Information Centre.Pedals
To ensure the pedal travel is
uninhibited, there must be no mats in the area of the pedals.
Use only floor mats, which fit properly
and are fixed by the retainers on the
driver's side.
Steering If power steering assist is lost
because the engine stops or due to a
system malfunction, the vehicle can
be steered but may require increased
effort.
Control indicator c 3 92.Caution
Vehicles equipped with hydraulic
power steering:
If the steering wheel is turned until it reaches the end of its travel, and
is held in that position for more
than 15 seconds, damage may
occur to the power steering
system and there may be loss of
power steering assist.
Ground clearance
Due to the reduced ground clearance,
the vehicle can be damaged
depending on the vehicle loading and
appearance of the ground. Take
special care and drive slowly on steep driveways, entry and exit of parking
garages, high kerbs and uneven
surfaces. If possible, drive diagonally
with one wheel after another when running over kerbs or uneven
surfaces.
138Driving and operatingStarting and operating
New vehicle running-in
Do not brake unnecessarily hard for
the first few journeys.
During the first drive, smoke may
occur because of wax and oil
evaporating off the exhaust system.
Park the vehicle in the open for a
while after the first drive and avoid
inhaling the fumes.
During the running-in period fuel and engine oil consumption may be
higher and the cleaning process of
the diesel particle filter may take
place more often. Autostop may be
inhibited to allow for charging the
vehicle battery.
Diesel particle filter 3 143.Ignition switch positions0:ignition off1:steering wheel lock released,
ignition off2:ignition on, for diesel engine:
preheating3:starting
Retained power off
The following electronic systems can
work until the driver's door is opened
or for a maximum of 10 minutes after
the ignition is switched off:
● power windows
● power outlets
Starting the engine
Manual transmission: operate clutch.
Automatic transmission: operate
brake and move the selector lever to
P or N.
Do not operate the accelerator pedal. Diesel engine: turn the key to position2 for preheating until control
indicator ! extinguishes.
Turn the key briefly to position 3 and
release: an automatic procedure
operates the starter with a short delay
as long as the engine is running, see
'Automatic Starter Control'.
140Driving and operatingDeactivation
Deactivate the stop-start system
manually by pressing eco. The
deactivation is indicated when the
LED in the button extinguishes.
Autostop If the vehicle is at a low speed or at a
standstill, activate an Autostop as
follows:
● Depress the clutch pedal.
● Move the selector lever to neutral.
● Release the clutch pedal.
The engine will be switched off while
the ignition stays on.
An Autostop is indicated by the
needle at the AUTOSTOP position in
the tachometer.
During an Autostop, the heating and
brake performance will be
maintained.
Caution
The power steering assist may be
reduced during an Autostop.
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 bonnet is fully closed.
● 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 above -5 °C.
● The climate control system allows an Autostop.
● The brake vacuum is sufficient.
● The self-cleaning function of the diesel particle filter is not active.
● The vehicle was driven at least at
walking speed since the last
Autostop.
Driving and operating183Trailer 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 4 x
5 Watt bulbs, the function only detects
lamp outage when only a single
5 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.Driving characteristics and
towing tips
Before attaching a trailer, lubricate the coupling ball. However, do not do
so if a stabiliser, which acts on the coupling ball, is being used to reduce snaking movements.
For trailers with low driving stability
and caravan trailers with a permitted
gross vehicle weight of more than
1200 kg the use of a stabiliser is
strongly recommended when driving
above 80 km/h.
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 3 247.Trailer towing
Trailer loads The 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 max. 12%.
The permitted trailer load applies up to the specified incline and up to an
altitude of 1000 metres above 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 additional
altitude. The gross train weight does
not have to be reduced when driving
on roads with slight inclines (less than
8%, e.g. motorways).
Vehicle care209No.Circuit1Soft top control module, power
rail right2–3Parking assist4Selective catalytic reduction
system5–6–7Power seat8Soft top control module9Selective catalytic reduction
system10Selective catalytic reduction
system11Trailer module, tyre pressure
monitor and rear view camera12Soft top control module, tail
lights13–No.Circuit14Rear seat electrical folding15–16Seat ventilation, rear view
camera, soft top control module17–18–19Steering wheel heating20–21Seat heating22–23Soft top control module, power
rail left24Selective catalytic reduction
system25–26Jumper fuse for non logistic
mode27Passive entry28–No.Circuit29Hydraulic unit30–31–32Flex Ride
258Headlight flash ........................... 116
Headlight range adjustment ......116
Headlights................................... 113 Headlights when driving abroad 116
Head restraint adjustment .............8
Head restraints ............................ 47
Heated mirrors ............................. 32
Heated rear window ..................... 36
Heated steering wheel .................79
Heating ........................................ 55
Heating and ventilation system . 126
High beam ........................... 94, 115
High beam assist ..................94, 115
Hill start assist ........................... 154
Horn ....................................... 15, 80
I Identification plate .....................236
Ignition switch positions .............138
Immobiliser ............................ 30, 94
Indicators ...................................... 85
Information displays...................... 95
Instrument cluster ........................85
Instrument panel fuse box .........207
Instrument panel illumination .....204
Instrument panel illumination control .................................... 122
Instrument panel overview ........... 10
Interactive driving system ...........156
Interior care ............................... 232Interior lighting............................ 122
Interior lights ...................... 123, 204
Interior mirrors .............................. 32
Interruption of power supply ......150
Introduction .................................... 3
ISOFIX child restraint systems ....69
J Jump starting ............................. 226
K Key, memorised settings ..............23
Keys ............................................. 21
Keys, locks ................................... 21
L
Lane departure warning .......92, 178
Lashing eyes ............................... 76
Light switch ................................ 113
Load compartment ................26, 73
Load compartment fuse box ......208
Loading information .....................77
Low fuel ....................................... 94
M
Malfunction indicator light ............90
Manual anti-dazzle ......................32
Manual mode ............................. 149
Manual seat adjustment ...............50
Manual transmission .................. 151
Memorised settings ......................23Mirror adjustment ........................... 8
Misted light covers .....................122
N
New vehicle running-in ..............138
Number plate light .....................203
O Object detection systems ...........164
Odometer ..................................... 85
Oil, engine .......................... 234, 238
OnStar ........................................ 108
Operate pedal ............................... 91
Outside temperature ....................82
Overrun cut-off ........................... 139
P Parking ................................ 19, 141
Parking assist ............................ 164
Parking brake ............................ 152
Parking lights ............................. 122
Particulate filter ........................... 143
Performance .............................. 242
Performing work ........................190
Pollen filter ................................. 134
Power outlets ............................... 84
Power seat adjustment ................53
Power steering.............................. 92
Power windows ............................ 33
Preheating ................................... 93
Puncture ..................................... 220
259QQuickheat ................................... 133
R
Radio Frequency Identification (RFID) ..................................... 255
Radio remote control ...................22
Reading lights ............................ 123
Rear floor storage cover ..............75
Rear fog light ............................... 95
Rear fog lights ........................... 121
Rear storage ................................. 75
Rear view camera ...................... 173
Recommended fluids and lubricants ........................ 234, 238
Refuelling ................................... 180
Registered trademarks ...............254
Retained power off .....................138
Reversing lights .........................122
Ride control systems ..................154
Rollover protection system ...........46
S
Seat adjustment ............................. 7
Seat belt ........................................ 8
Seat belt reminder .......................89
Seat belts ..................................... 56
Seat folding .................................. 52
Seat heating ................................. 55
Seat position ................................ 49
Seat ventilation ............................. 55Selective catalytic reduction .......144
Selector lever ............................. 148
Service ............................... 135, 233
Service display ............................ 87
Service information ....................233
Side airbag system ......................63
Side blind spot alert ....................171
Sidelights .................................... 113
Side turn signal lights ................202
Soft top ........................................ 36
Software acknowledgement .......252
Spare wheel ............................... 223
Speed limiter............................... 160
Speedometer ............................... 85
Starting and operating ................138
Starting off ................................... 18
Starting the engine ....................138
Steering ...................................... 137
Steering wheel adjustment ......9, 79
Steering wheel controls ...............79
Stop-start system........................ 139
Storage ......................................... 70
Storage compartments .................70
Sunvisor lights ........................... 123
Sun visors .................................... 36
Symbols ......................................... 4
T
Tachometer ................................. 86
Tail lights ................................... 201Three-point seat belt .................... 57
Tools .......................................... 210
Top-tether fastening eyes ............69
Tow bar....................................... 183
Towing ................................ 183, 228
Towing another vehicle .............229
Towing equipment .....................184
Towing the vehicle .....................228
Traction Control system ............. 154
Traction Control system off........... 93
Traffic sign assistant ...................175
Trailer coupling ........................... 183
Trailer towing ............................. 183
Transmission ............................... 17
Transmission display .................147
Tread depth ............................... 216
Trip odometer .............................. 86
Turn and lane-change signals ...121
Turn signal ................................... 89
Tyre chains ................................ 217
Tyre designations ......................211
Tyre pressure ............................ 215
Tyre pressure monitoring system ............................... 93, 211
Tyre pressures ........................... 247
Tyre repair kit ............................. 217
U Ultrasonic parking assist............. 164
Upholstery .................................. 232