152Driving and operatingFault
If there is a fault in the system, the control indicator b illuminates
continuously and a message or a
warning code appears in the Driver
Information Centre. The system is not
operational.
Have the cause of the fault remedied by a workshop.
City mode City mode is a feature which enables
increased steering assistance during
lower speed conditions, e.g. city
traffic or parking. Steering assistance
is increased for greater convenience.Activation
Press B when engine is running. The
system works from standstill up to
22 mph, and also in reverse gear. Above this speed, the system
changes to normal mode. When
activated, City mode engages
automatically below 22 mph.
An illuminated LED in the City mode
button indicates that the system is
active and a message pops-up in the
Driver Information Centre.
City mode remains active during an
Autostop, but is only operational when the engine is running.
Stop-start system 3 135.
Deactivation
Press B; LED in the button
extinguishes and a message pops-up in the Driver Information Centre.
Each time the engine is started, City
mode is deactivated.
Fault
In the event of a fault in the system,
control indicator c illuminates and a
message is displayed in the Driver
Information Centre.
Vehicle messages 3 102.
System calibration
If control indicators c and b
illuminate simultaneously, a
calibration of the power steering
system is necessary. This can occur
e.g. when turning the steering wheel
for one rotation with ignition switched
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 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.
For trailers with low driving stability
and caravan trailers with a permitted
gross vehicle weight of more than
1000 kg a speed of 50 mph must not
be exceeded; the use of a stabiliser is
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 3 251.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 loads apply 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).
Driving and operating1879Warning
Towing a trailer is permitted only
when a coupling ball bar is fitted correctly. If the coupling ball bardoes not engage correctly, seekthe assistance of a workshop.
Dismounting the coupling ball bar
Insert the key in the lock and unlock
the coupling ball bar.
Push the rotary knob onto the
coupling ball bar and rotate right while pressed down until it engages. Pull
out the ball bar downwards.
Insert sealing plug in opening for
coupling ball bar. Fold away socket.
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 3 151.
Vehicle care209No.Circuit1–2–3Power windows4Voltage transformer5Body control module 16Body control module 27Body control module 38Body control module 49Body control module 510Body control module 611Body control module 712Body control module 813–14Tailgate15Airbag system16Data link connection17IgnitionNo.Circuit18Air conditioning system19Sunroof20Parking assist/Rain sensor/
Front camera21Brake switch22Audio system23Display24–25Auxiliary jack26Instrument panel27–28–29–30–31Horn32–33Heated steering wheel
262Headlights................................... 112Headlights when driving abroad 114
Head restraint adjustment .............8
Head restraints ............................ 35
Heated mirrors ............................. 29
Heated rear window ..................... 32
Heated steering wheel .................75
Heated windscreen .......................32
Heating ........................................ 39
Heating and ventilation system . 122
High beam ........................... 95, 114
High beam assist ..................95, 115
Hill start assist ........................... 149
Horn ....................................... 13, 76
I
Identification plate .....................239
Ignition switch positions .............133
Immobiliser ............................ 28, 94
Indicators ...................................... 83
Inductive charging ........................81
Information displays...................... 96
Instrument cluster ........................83
Instrument panel fuse box .........208
Instrument panel illumination .....205
Instrument panel illumination control .................................... 118
Instrument panel overview ........... 10
Interior care ............................... 234
Interior lighting ............................ 118Interior lights ...................... 119, 205
Interior mirrors .............................. 29
Interruption of power supply ......142
Introduction .................................... 3
ISOFIX child restraint systems ....54
J
Jump starting ............................. 228
K Key, memorised settings ..............22
Keys ............................................. 20
Keys, locks ................................... 20
L
Lane departure warning .......92, 175
Lashing eyes ............................... 70
Light switch ................................ 112
Load compartment ................25, 66
Load compartment cover .............68
Loading information .....................72
Low fuel ....................................... 94
M
Malfunction indicator light ............91
Manual anti-dazzle ......................29
Manual mode .....................141, 147
Manual transmission .................. 143
Manual transmission automated 144
Manual windows ..........................30
Memorised settings ......................22Mirror adjustment ........................... 8
Misted light covers .....................118
N
New vehicle running-in ..............133
Number plate light .....................204
O Object detection systems ...........159
Odometer ..................................... 83 Oil, engine .......................... 236, 240
OnStar ........................................ 108
Operate pedal ............................... 92
Outside temperature ....................78
Overrun cut-off ........................... 135
P Parking ................................ 18, 138
Parking assist ............................ 159
Parking brake ............................ 149
Parking lights ............................. 118
Particulate filter ........................... 139
Performance .............................. 245
Performing work ........................190
Pollen filter ................................. 130
Power outlets ............................... 81
Power steering.............................. 92
Power windows ............................ 30
Preheating ................................... 93
Puncture ..................................... 224
263RRadio Frequency Identification (RFID) ..................................... 258
Radio remote control ...................21
Reading lights ............................ 120
Rear carrier system ......................58
Rear floor storage cover ..............69
Rear fog light ....................... 95, 117
Rear view camera ...................... 170
Rear window wiper/washer .......... 78
Recommended fluids and lubricants ........................ 236, 240
Reduced engine power ................94
Refuelling ................................... 179
Registered trademarks ...............257
Retained power off .....................134
Reversing lights .........................118
Ride control systems ..................150
Roof .............................................. 33
Roof load ...................................... 72
Roof rack ..................................... 71
S Safety belts ................................... 40
Seat adjustment ....................... 7, 37 Seat belt ........................................ 8
Seat belt reminder .......................90
Seat belts ..................................... 40 Seat folding .................................. 38
Seat heating ................................. 39Seat position ................................ 36
Selector lever ..................... 140, 145
Service ....................................... 131
Service display ............................ 86
Service information ....................235
Service vehicle soon .................... 91
Side airbag system ......................47
Side blind spot alert ....................169
Sidelights .................................... 112
Side turn signal lights ................203
Software acknowledgement .......255
Spare wheel ............................... 226
Speed limiter......................... 95, 155
Speedometer ............................... 83
Starting and operating ................133
Starting off ................................... 17
Starting the engine ............134, 144
Steering wheel adjustment ......9, 75
Steering wheel controls ...............75
Stop-start system........................ 135
Storage ......................................... 56
Storage compartments .................56
Sunroof ........................................ 33
Sun visors .................................... 32
Symbols ......................................... 4
T
Tachometer ................................. 84
Tail lights ................................... 201
Three-point seat belt .................... 41Tools .......................................... 210
Top-tether fastening eyes ............54
Tow bar....................................... 183
Towing ................................ 183, 230
Towing another vehicle .............231
Towing equipment .....................184
Towing the vehicle .....................230
Traction Control system ............. 150
Traction Control system off........... 93
Traffic sign assistant .............95, 172
Trailer coupling ........................... 183
Trailer stability assist .................187
Trailer towing ............................. 183
Transmission ............................... 16
Transmission display .........140, 144
Tread depth ............................... 217
Trip odometer .............................. 83
Turn and lane-change signals ...117
Turn signal ................................... 89
Tyre chains ................................ 218
Tyre designations ......................211
Tyre pressure ............................ 212
Tyre pressure monitoring system ............................... 94, 213
Tyre pressures ........................... 251
Tyre repair kit ............................. 218
U Ultrasonic parking assist ...... 93, 159
Underseat storage .......................58