Page 196 of 271

194Driving and operatingInsert the tensioned coupling ball bar
in the opening and push firmly
upwards until it audibly engages.
The rotary handle snaps back into its
original position resting against the
coupling ball bar without a gap.9 Warning
Do not touch rotary handle during
insertion.
Lock the coupling ball bar by turning
the key to position e. Remove the key
and close the protective flap.
Eye for break-away stopping cable
Attach breakaway stopping cable to
eye.
Check that the coupling ball bar is correctly installed
● Green marking on rotary knob must point towards green
marking on coupling ball bar.
● There must be no gap between the rotary handle and the
coupling ball bar.
● The coupling ball bar must be firmly engaged in the opening.
● The coupling ball bar must be locked and the key removed.9Warning
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
Open the protective flap and turn the
key to position c to unlock the
coupling ball bar.
Pull out rotary handle and turn
clockwise as far as it will go. Pull out coupling ball bar downwards.
Insert sealing plug in opening. Fold away socket.
Trailer stability assist
If the system detects snaking
movements, engine power is reduced
and the vehicle / trailer combination is
Page 197 of 271
Driving and operating195selectively 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 3 149.
Page 216 of 271
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
Page 239 of 271
Service and maintenance237General information
Service information
In order to ensure economical and
safe vehicle operation and to
maintain the value of your vehicle, it
is of vital importance that all
maintenance work is carried out at the proper intervals as specified.
The detailed, up-to-date service
schedule for your vehicle is available
at the workshop.
Severe operating conditions exist if one or more of the following
circumstances occur frequently: Cold starting, stop and go operation, e.g.
for taxis and police vehicles, trailer
operation, mountain driving, driving
on poor and sandy road surfaces,
increased air pollution, presence of
airborne sand and high dust content,
driving at high altitude and large
variations of temperature.
Under these severe operating
conditions, certain service work may
be required more frequently than the
regular service interval indicated inthe service display. Contact a
workshop for customised service
schedules.
Service display 3 90.
Page 269 of 271

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
Page:
< prev 1-8 9-16 17-24