
176Driving and operating● after a prolonged stop of thevehicle during a manoeuvre
● if the Electronic Stability Control is triggered
● if the speed of the vehicle exceeds the stated limit
● when the driver interrupts movement of the steering wheel
● after four manoeuvre cycles (a manoeuvre cycle consists of one
rear move and one forward
move)
● on opening the driver's door ● if one of the front wheels encounters an obstacle
● parking manoeuvre successfully ended
Deactivation by the driver or by the
system during manoeuvring will be
indicated on the display. Additionally, an acoustic signal sounds.
The system is switched off
automatically when towing an
electrically connected trailer, bicycle
carrier, etc.
Contact your dealer to switch off the
system for a prolonged period.Fault
In the event of a fault, a message is
displayed in the Colour Info Display, accompanied by an acoustic signal.
In the event of a fault in the power
steering, C illuminates and a
message is displayed in the Driver
Information Centre.9 Warning
Under certain circumstances,
various reflective surfaces on
objects or clothing as well as
external noise sources may cause the system to fail to detect
obstacles.
Special attention must be paid to
low obstacles which can damage
the lower part of the bumper.
Caution
Performance of the system can be reduced when sensors are
covered, e.g. by ice or snow.
Performance of the parking assist
system can be reduced due to
heavy loading.
Special conditions apply if there
are taller vehicles in the vicinity
(e.g. off-road vehicles, mini vans,
vans). Object identification and correct distance indication in the
upper part of these vehicles
cannot be guaranteed.
Objects with a very small reflection
cross-section, e.g. objects of
narrow size or soft materials, may
not be detected by the system.
Parking assist systems do not
detect objects outside the
detection range.
Notice
It is possible that the sensor detects a non-existing object caused by
echo disturbance from external

Driving and operating191Trailer hitch
General information
Only use towing equipment that has
been approved for your vehicle. If
using non-factory fitted towing
equipment, deactivation of the hands- free tailgate operation may be
required 3 29.
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 bulbs with a power of 5 W each,
the function only detects lamp outage
when only a single 5 W lamp remains
or none remain.
Trailers equipped with LED lights are
not suitable for the wiring harness of
this trailer hitch.
Fitting of towing equipment could
cover the opening of the towing eye.
If this is the case use the coupling ballbar for towing. Always keep the
coupling ball bar in the vehicle to have
it on hand if needed.
Driving characteristics andtowing 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.
During trailer towing do not exceed a
speed of 50 mph. A maximum speed
of 60 mph 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 3 252.
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 m of altitude. The
gross train weight does not have to be

Vehicle care203When the vehicle battery is being
replaced, please ensure that there
are no open ventilation holes in the
vicinity of the positive terminal. If a
ventilation hole is open in this area, it
must be closed off with a dummy cap,
and the ventilation in the vicinity of the negative terminal must be opened.
Ensure that the battery is always replaced by the same type of battery.
The vehicle battery has to be
replaced by a workshop.
Stop-start system 3 134.
Charging the vehicle battery9 Warning
On vehicles with stop-start
system, ensure that the charging potential does not exceed 14.6 V
when using a battery charger.
Otherwise the vehicle battery may be damaged.
Jump starting 3 228.
Discharge 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.
● The vehicle battery contains sulphuric acid which could cause
blindness or serious burn
injuries.
● Keep the vehicle battery out of reach of children.

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.

212Vehicle careFuse extractorA fuse extractor may be located in the
fuse box in the engine compartment.
The extractor has two sides, each
side is designed for a different type of fuses.
Grab the fuse with the fuse extractor
and withdraw the fuse.
Engine compartment fuse
box
The fuse box is in the front left of the
engine compartment.
Disengage the cover and remove it. Depending on the version, different
engine compartment fuse boxes are
available:
No.Circuit9Anti-theft alarm system10Stop-start system11Diesel exhaust system13Stop-start system15Electric power steering / Radar22Horn29Starter

214Vehicle careNo.Circuit10Central locking system11Central locking system13Anti-theft alarm system16Electrical power steering wheel18OnStar21Interior lights22Glovebox light23Blind spot alert system / Exteriormirror adjustment / Inductive
charging24Column electrical assembly25Interior mirror26Seat belt reminder27Camera / Rain sensor / Auto‐
matic light control28USB / Infotainment31AirbagNo.Circuit33Power outlet front36InfotainmentNo.Circuit1Interior mirror / Electrical power
steering wheel / Selective ride
control / Radar / Diesel exhaust
system3Trailer provisions control
module4HornNo.Circuit5Windscreen washer6Windscreen washer7Power outlet rear10Doors lock / Tailgate lock11Doors lock / Tailgate lock12Stop-start system / Diagnostic
connector module / Brake
system13Infotainment / Climate control
system14Alarm siren15Climate control system16Stop-start system / Brake
system17Instrument cluster19Column electrical assembly /
Steering wheel controls21Anti-theft alarm 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