154Driving and operatingAs soon as the liquid gas tanks are
empty, petrol operation is
automatically engaged until the
ignition is switched off.
When switching automatically
between petrol or gas operation, a
brief delay of engine tractive power
may be noticeable.
Every six months, run the petrol tank
down until control indicator i
illuminates, then refuel. This helps
maintain fuel quality and system
function for petrol operation.
Fill the tank completely at regular
intervals to prevent corrosion in the
tank.
Faults and remedies
If gas mode is not possible, check the following:
● Is there enough liquid gas present?
● Is there enough petrol present for
starting?Due to extreme temperatures in
combination with the gas
composition, it may take slightly
longer before the system switches
from petrol to gas mode.
In extreme situations, the system may
also switch back to petrol mode if the
minimum requirements are not
fulfilled. If conditions allow, it may be
possible to manually switch back to
liquid gas operation.
Seek the assistance of a workshop in
the event of all other faults.Caution
Repairs and adjustments may only be made by trained specialists in
order to maintain the safety and
warranty on the LPG system.
Liquid gas is given a particular odour
(odorised) so that any leaks can be
detected easily.
9 Warning
If you smell gas in the vehicle or in
the immediate vicinity, switch to petrol mode immediately. No
smoking. No naked flames or
ignition sources.
If the gas odour persists, do not start
the engine. Have the cause of the
fault remedied by a workshop.
When using underground car parks,
follow the instructions of the operator
and local laws.
Note
In the event of an accident, switch off
the ignition and lights.
Vehicle care165website, where legally required. Only
entrust this work to an authorised
recycling centre.
Gas vehicles must be recycled by a service centre authorised for gas
vehicles.Vehicle checks
Performing work9 Warning
Only perform engine compartment
checks when the ignition is off.
The cooling fan may start
operating even if the ignition is off.
9 Danger
The ignition system and Xenon
headlights use extremely high
voltage. Do not touch.
Bonnet
Opening
Pull the release lever and return it to
its original position.
Vehicle care181Instrument panel fuse box
Interior fuse block is located on the
underside of the driver's side
instrument panel.
To access the fuses, remove the
storage.
To remove the storage, open and pull it.
Mini Fuses
No.Circuit1Body control module2Body control module3Body control module4Body control module5Body control module6Body control module7Body control module8Body control module9Ignition switch10Safety diagnosis module11Data link connector12Climate control13Tailgate14Parking assist15Lane departure warning/Interior
mirror16Adaptive forward lighting17Power window driver
188Vehicle careThe use of commercially available
liquid tyre repair kits can impair the
function of the system. Factory-
approved repair kits can be used.
Operating electronic devices or being close to facilities using similar wave
frequencies could disrupt the tyre
pressure monitoring system.
Each time the tyres are replaced, tyre
pressure monitoring system sensors
must be dismounted and serviced. For the screwed sensor, replace
valve core and sealing ring. For
clipped sensor, replace complete
valve stem.
Vehicle loading status
Adjust tyre pressure to load condition according to tyre information label ortyre pressure chart 3 218, and select
the relevant setting in the menu Tyre
Load in the Driver Information Centre,
Vehicle Information Menu 3 89. This
setting is the reference for the tyre
pressure warnings.The Tyre Load menu only appears if
the vehicle is in a standstill and the
parking brake is applied. On vehicles
with automatic transmission the
selector lever has to be in P.
Select:
● Light for comfort pressure up to
3 people
● Eco for Eco pressure up to
3 people
● Max for full loading
Tyre pressure sensor matching
process
Each tyre pressure sensor has a
unique identification code. The
identification code must be matched
to a new wheel position after rotating the wheels or exchanging the
complete wheel set and if one or more tyre pressure sensors were replaced.The tyre pressure sensor matching
process should also be performed
after replacing a spare wheel with a
road wheel containing the tyre
pressure sensor.
The malfunction light w and the
warning message or code should go
off at the next ignition cycle. The
sensors are matched to the wheel
positions, using a relearn tool, in the
following order: left side front wheel,
right side front wheel, right side rear
wheel and left side rear wheel. The
turn signal light at the current active
position is illuminated until sensor is
matched.
Consult a workshop for service or
purchase a relearn tool. There are
two minutes to match the first wheel
position, and five minutes overall to
227Control of the vehicle .................125
Controls ........................................ 72
Convex shape .............................. 28
Coolant and antifreeze ...............206
Cruise control ...................... 89, 140
Cupholders .................................. 56
Curtain airbag system .................. 47
D Danger, Warnings and Cautions ...4
Daytime running lights ...............110
Declaration of conformity ............220
Delayed locking ............................ 24
Descent control system .......86, 139
Diesel fuel system bleeding .......171
Diesel particle filter ...............87, 130
Door open .................................... 89
Doors ............................................ 25
Driver assistance systems ..........140
Driver Information Centre .............89
Driving characteristics and towing tips .............................. 159
Driving hints ................................ 125
E Electric adjustment ......................28
Electrical system......................... 179
Electronic climate control system 119
Electronic driving programmes ..133
Electronic Stability Control.......... 138Electronic Stability Control and Traction Control system ............87
Electronic Stability Control off....... 86 End-of-life vehicle recovery .......164
Engine compartment fuse box ...179
Engine coolant ........................... 167
Engine coolant temperature gauge ....................................... 80
Engine data ............................... 213
Engine exhaust .......................... 130
Engine identification ...................209
Engine oil ................... 166, 206, 210
Engine oil pressure ......................87
Entry lighting .............................. 115
Event data recorders ..................224
Exit lighting ................................ 116
Exterior care .............................. 202
Exterior light ................................. 88
Exterior lighting ....................13, 107
Exterior mirrors ............................. 28
F Fault ........................................... 133
First aid kit ................................... 69
Fixed air vents ........................... 122
Flex-Fix system ............................ 57
Fog light ....................................... 89
Fog lights ................................... 175
Folding mirrors ............................. 28
Forward collision alert................. 142Front airbag system .....................46
Front fog lights ........................... 113
Front seats.................................... 36
Front turn signal lights ...............175
Fuel............................................. 152
Fuel consumption - CO 2-
Emissions ............................... 158
Fuel for diesel engines ..............152
Fuel for liquid gas operation .......153
Fuel for petrol engines ...............152
Fuel gauge ................................... 79
Fuel selector ................................ 79
Fuses ......................................... 179
G Gauges ......................................... 78
General information ...................159
Glovebox ..................................... 56
Glove box lighting .......................115
Graphic-Info-Display, Colour- Info-Display .............................. 93
H
Halogen headlights ....................172
Hand brake ................................. 136
Hazard warning flashers ............112
Headlight flash ........................... 109
Headlight range adjustment ......109
Headlights when driving abroad 109
Head restraint adjustment .............8
Head restraints ............................ 35
228Heated mirrors ............................. 29
Heated rear window ..................... 32
Heated steering wheel .................72
Heating ........................................ 39
Heating and ventilation system . 117
High beam ........................... 88, 108
Hill start assist ........................... 137
Horn ....................................... 14, 73
I
Identification plate .....................208
Ignition switch positions .............126
Immobiliser ............................ 27, 88
Indicators ...................................... 78
Information displays...................... 89
Initial drive information.................... 6 Instrument panel fuse box .........181
Instrument panel illumination control .................................... 114
Instrument panel overview ........... 10
Instrument panel storage ..............55
Interior care ............................... 204
Interior lighting ............................ 114
Interior lights ...................... 114, 178
Interior mirrors .............................. 29
Interruption of power supply ......133
Introduction .................................... 3
ISOFIX child restraint systems ....53
J
Jump starting ............................. 198K
Key, memorised settings ..............22
Keys ............................................. 20
Keys, locks ................................... 20
L
Lane departure warning .......86, 151
Lashing eyes ............................... 69
Lighting features .........................115
Light switch ................................ 107
Load compartment ................25, 66
Load compartment cover .............68
Load compartment fuse box ......182
Loading information .....................70
Low fuel ....................................... 88
M Malfunction indicator light ............85
Manual anti-dazzle ......................29
Manual mode ............................. 133
Manual transmission .................. 134
Manual windows ..........................30
Memorised settings ......................22
Midlevel-Display ........................... 89
Mirror adjustment ........................... 8
Misted light covers .....................114
N New vehicle running-in ..............125
Number plate light .....................178O
Object detection systems ...........144
Odometer ..................................... 78
Oil, engine .......................... 206, 210
OnStar ........................................ 103
Operate pedal ............................... 85
Outside temperature ....................75
Overrun cut-off ........................... 127
P
Parking ................................ 18, 129
Parking assist ............................ 144
Parking brake ............................ 136
Particulate filter ........................... 130
Performance .............................. 214
Performing work ........................165
Pollen filter ................................. 123
Power outlets ............................... 77
Power steering.............................. 86
Power steering fluid ....................168
Power windows ............................ 31
Preheating ................................... 87
Puncture ..................................... 194
R Radio Frequency Identification (RFID) ..................................... 225
Radio remote control ...................21
Reading lights ............................ 115
Rear carrier system ......................57
Rear floor storage cover ..............68
230Vehicle Identification Number ....208
Vehicle jack ................................ 184
Vehicle messages .......................94
Vehicle personalisation .............100
Vehicle security ............................ 26
Vehicle specific data ......................3
Vehicle storage ........................... 164
Vehicle tools ............................... 184
Vehicle unlocking ........................... 6 Vehicle weight ........................... 215
Ventilation ................................... 117
W
Warning chimes ........................... 96
Warning lights ............................... 78
Warning triangle .......................... 69
Washer and wiper systems .........15
Washer fluid ............................... 168
Wheel changing .........................194
Wheel covers ............................. 190
Wheels and tyres .......................184
Windows ....................................... 30
Windscreen................................... 30
Windscreen wiper/washer ...........73
Winter tyres ............................... 184
Wiper blade replacement ..........171
X Xenon headlights .......................174