138Driving and operatingDriving 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 3 140.
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 93.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.
Driving and operating139Starting 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 exhaust filter may take place more
often. Autostop may be inhibited to
allow for charging the vehicle battery.
Exhaust filter 3 144.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'.
Driving and operating141Deactivation
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.
The stop-start system will be disabled
on inclines of 12% or more.
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 exhaust filter is not active.
● The vehicle was driven at least at
walking speed since the last
Autostop.
Driving and operating185Trailer 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 3 248.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 care211No.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
262Head restraint adjustment .............8
Head restraints ............................ 47
Heated mirrors ............................. 31
Heated rear window ..................... 35
Heated steering wheel .................79
Heating ........................................ 55
Heating and ventilation system . 127
High beam ........................... 95, 116
High beam assist ..................96, 116
Hill start assist ........................... 155
Horn ....................................... 15, 80
I
Identification plate .....................239
Ignition switch positions .............139
Immobiliser ............................ 30, 95
Indicators ...................................... 85
Info Display ................................. 101
Information displays...................... 96
Instrument cluster ........................85
Instrument panel fuse box .........209
Instrument panel illumination .....206
Instrument panel illumination control .................................... 123
Instrument panel overview ........... 10
Interactive driving system ...........157
Interior care ............................... 234
Interior lighting ............................ 123
Interior lights ...................... 124, 206
Interior mirrors .............................. 32Interruption of power supply ......151
Introduction .................................... 3
J Jump starting ............................. 228
K Key, memorised settings ..............23
Keys ............................................. 21
Keys, locks ................................... 21
L Lane departure warning .......93, 179
Lashing eyes ............................... 76
Light switch ................................ 114
Load compartment ................26, 73
Load compartment fuse box ......210
Loading information .....................77
Low fuel ....................................... 95
M Malfunction indicator light ............92
Manual anti-dazzle ......................32
Manual mode ............................. 150
Manual seat adjustment ...............50
Manual transmission .................. 152
Memorised settings ......................23
Mirror adjustment ........................... 8 Misted light covers .....................123N
New vehicle running-in ..............139
Number plate light .....................205
O Object detection systems ...........165
Odometer ..................................... 85
Oil, engine .......................... 236, 241
OnStar ........................................ 109
Operate pedal ............................... 92
Outside temperature ....................81
Overrun cut-off ........................... 140
P
Parking ................................ 19, 142
Parking assist ............................ 165
Parking brake ............................ 153
Parking lights ............................. 123
Particulate filter ........................... 144
Performance .............................. 245
Performing work ........................192
Pollen filter ................................. 135
Power outlets ............................... 83
Power seat adjustment ................53
Power steering.............................. 93
Power windows ............................ 33
Preheating ................................... 94
Puncture ..................................... 222
Q Quickheat ................................... 134
263RRadio Frequency Identification (RFID) ..................................... 259
Radio remote control ...................22
REACH ....................................... 254
Reading lights ............................ 124
Rear floor storage cover ..............75
Rear fog light ............................... 96
Rear fog lights ........................... 122
Rear storage ................................. 75
Rear view camera ...................... 174
Recommended fluids and lubricants ........................ 236, 241
Refuelling ................................... 182
Registered trademarks ...............256
Retained power off .....................139
Reversing lights .........................123
Ride control systems ..................155
Rollover protection system ...........45
S Seat adjustment ............................. 7
Seat belt ........................................ 8
Seat belt reminder .......................91
Seat belts ..................................... 56
Seat folding .................................. 52
Seat heating ................................. 55
Seat position ................................ 49
Seat ventilation ............................. 55
Selective catalytic reduction .......145Selector lever ............................. 149
Service ............................... 136, 235
Service display ............................ 87
Service information ....................235
Side airbag system ......................63
Side blind spot alert ....................172
Sidelights .................................... 114
Side turn lights ........................... 204
Soft top ........................................ 36
Software acknowledgement .......254
Spare wheel ............................... 225
Speed limiter............................... 161
Speedometer ............................... 85
Starting and operating ................139
Starting off ................................... 18
Starting the engine ....................139
Steering ...................................... 138
Steering wheel adjustment ......9, 79
Steering wheel controls ...............79
Stop-start system........................ 140
Storage ......................................... 70
Storage compartments .................70
Sunvisor lights ........................... 124
Sun visors .................................... 35
Symbols ......................................... 4
T
Tachometer ................................. 86
Tail lights ................................... 203
Three-point seat belt .................... 57Tools .......................................... 212
Tow bar....................................... 185
Towing ................................ 185, 230
Towing another vehicle .............231
Towing equipment .....................186
Towing the vehicle .....................230
Traction Control system ............. 155
Traction Control system off........... 94
Traffic sign assistant ...................176
Trailer coupling ........................... 185
Trailer towing ............................. 185
Transmission ............................... 17
Transmission display .................148
Tread depth ............................... 218
Trip odometer .............................. 85
Turn lights ............................ 90, 122
Tyre chains ................................ 219
Tyre designations ......................213
Tyre pressure ............................ 217
Tyre pressure monitoring system ............................... 94, 213
Tyre pressures ........................... 248
Tyre repair kit ............................. 219
U Ultrasonic parking assist............. 165
Upholstery .................................. 234
Upshift .......................................... 93
Using this manual ..........................3