206Driving and operatingFor 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.
If the outside temperature exceeds
37 °C, reduce the load on the trailer
to protect the engine of the vehicle.
At high outside temperatures it is
recommended to leave the engine
running for one or two minutes after
having stopped the vehicle in order to
faciliate cooling.
Adjust tyre pressure to the value
specified for full load 3 271.
Towing a trailer increases the braking
distance of the vehicle. To limit the
heating of the brakes, it is
recommended to use the braking
effect of the engine.By driving uphill, the temperature of
the coolant is increased. To reduce
heating, drive at a reduced speed and
pay attention to the coolant
temperature. If the control indicator
2 of the engine coolant temperature
gauge illuminates, stop the vehicle
and switch off engine as soon as
possible.
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 airbecoming 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).
The permissible gross train weight
must not be exceeded. This weight is
specified on the identification plate
3 264.
When distributing the loads in the trailer, heavy objects should be
placed as close as possible to the
axle.
Vertical coupling load
The vertical coupling load is the load
exerted by the trailer on the coupling
ball. It can be varied by changing the
weight distribution when loading the
trailer.
The maximum permissible vertical
coupling load is specified on the
towing equipment identification plate
and in the vehicle documents.
210Driving and operating
3. Connect the trailer plug to thesocket and fasten the breakaway
stopping cable to the eye on the
carrier.
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 3 171.
218Vehicle careDischarge protection
Battery voltage
When the vehicle battery voltage is
running low, a warning message will
appear in the Driver Information
Centre.
When the vehicle is being driven, the
load reduction function temporarily
deactivates certain functions, such as
the air conditioning, the heated rear
window, heated steering wheel, etc.
The deactivated functions are
reactivated automatically as soon as
conditions permit.
Idle boost
If charging of the vehicle battery is
required due to battery condition, the
power output of the generator must be increased. This will be achieved by
an idle boost which may be audible.
A message appears in the Driver
Information Centre.
Power outlet
The power outlets are deactivated in
the event of low vehicle battery
voltage.Warning label
Meaning of symbols:
● No sparks, naked flames or smoking.
● Always shield eyes. Explosive gases can cause blindness or
injury.
● Keep the vehicle battery out of reach of children.
● The vehicle battery contains sulphuric acid which could cause
blindness or serious burn
injuries.
● See the Owner's Manual for further information.
● Explosive gas may be present in the vicinity of the vehicle battery.
Heating functionalities Note
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.
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.
232Vehicle careEngine compartment fuse
box
The fuse box is in the front left of the
engine compartment.
Disengage the cover and remove it.
No.Circuit12Heated washer jets14Front and rear screenwash
pump15Front radar system, electric
power steering17Built-in systems interfaceNo.Circuit19Front wiper motor20Front and rear screenwash
pump21Headlight wash pump22Horn23Right high beam24Left high beam
After having changed defective fuses,
close the fuse box cover and lock it.
If the fuse box cover is not closed
correctly, malfunction may occur.
Instrument panel fuse boxThe fuse box is located behind a
cover in the instrument panel at the
left side.
Remove the cover by pulling at the
top left, then at the right side.
Vehicle care233Version 1 (Eco)No.Circuit1Clutch switch, power steering4Horn5Front and rear screenwash
pump6Front and rear screenwash
pump7Rear power outlet8Rear window wipers10/11Central locking systemNo.Circuit13Head-up display, climate
controls, Infotainment system
controls, gear selector14Anti-theft alarm system, tele‐
matic unit17Instrument cluster19Steering wheel controls21Anti-theft system or electronic key system22Front camera, rain and light
sensor23Seat belt reminder24Parking assist, Infotainment
system, rear view camera25Airbags29Infotainment system31Infotainment system (+
battery)32Front power outletNo.Circuit34Interior mirror, blind spot
monitoring system, door
mirror controls35Heated washer jets, headlight
range adjustment36Interior lights, torch charger
Version 2 (Full)
234Vehicle careNo.Circuit1Anti-theft system or
electronic key system5Parking assist, Infotain‐
ment system, rear view
camera7Rear climate controls,
audio system amplifier8Rear window wipers10/11Central locking system12Anti-theft alarm system17Rear power outlet18Telematic unit21Interior lights, torch
charger22Interior lights, glovebox
light23Blind spot monitoring
system, door mirror
controls24Steering wheel controlsNo.Circuit25Headlight range adjust‐
ment26Seat belt reminder27Front camera, rain and
light sensor28Head-up display, front
climate controls, Info‐
tainment system
controls, gear selector30A or 30BAudio system (+
battery)31Airbag33Front power outlet35Instrument cluster36Infotainment systemVehicle tools
Tools
The tools are located in the box
underneath the left front seat.
283Parking heater............................ 147
Particulate filter ........................... 161
Performing work ........................213
Peripheral lighting .......................138
Power button .............................. 154
Power outlets ............................... 98
Power seat adjustment ................50
Power sliding doors ......................31
Power windows ............................ 42
Preheating ................................. 113
Puncture ..................................... 245
R Radio Frequency Identification (RFID) ..................................... 278
Radio (Infotainment system)....... 124
Radio remote control ...................23
Rain sensor ................................ 115
REACH ....................................... 274
Reading lights ............................ 136
Rear doors .................................... 31
Rear fog light .............115, 134, 226
Rear seats ................................... 53
Rear view camera ...................... 199
Rear windows .............................. 43
Rear window wiper and washer ..97
Recommended fluids and lubricants ........................ 262, 266
Refuelling ................................... 204
Registered trademarks ...............275Reversing lights .........................135
Ride control systems ..................171
Roadside assistance ..................128
Roller blinds ................................. 45
Roof .............................................. 46
Roof bars ...................................... 90
Roof load ...................................... 91
Roof rack ..................................... 90
S Safety net .................................... 84
Seat adjustment ............................. 7
Seat belt ........................................ 8
Seat belt reminder .....................110
Seat belts ..................................... 57
Seat folding .................................. 51
Seat heating ................................. 52
Seat position ................................ 48
Selective catalytic reduction .......162
Selective ride control ..................172
Selector lever.............................. 166
Service ............................... 151, 259
Service display .......................... 109
Service information ....................259
Service vehicle soon .................. 112
Side airbag system ......................64
Side blind spot alert ............116, 194
Sidelights .................................... 130
Side turn lights ........................... 228
Sliding doors ................................ 31Sliding side doors.........................31
SOS ............................................ 128
Spare wheel ............................... 245
Speed limiter....................... 116, 177 Speedometer ............................. 105
Starting and operating ................153
Starting off ................................... 19
Starting the engine ....................155
Steering ...................................... 153
Steering column controls ..............95
Steering wheel .............................. 95
Steering wheel adjustment ......9, 94
Steering wheel controls ...............94
Stop engine ................................ 112
Stop-start system........................ 157
Storage ......................................... 78
Storage compartments .................78
Sunvisor lights ........................... 137
Sun visors .................................... 45
Symbols ......................................... 4
System check ............................. 112
T
Table............................................. 87
Tachometer ............................... 107
Tailgate ......................................... 33
tailgate window ............................. 43
Tail lights ................................... 226
Three-point seat belt .................... 58
Tools .......................................... 234