Page 254 of 324

CNGFig. 289
Position of the CNG label(s).
Read and observe
and on page 248 first.
A G-TEC-vehicle may be operated with CNG and petrol.
Positioning of the CNG sticker in natural gas vehicles » Fig. 289.
Automatic switching from natural gas to petrol operation - Automatic switch-
ing from natural gas to petrol operation takes place in the following situations
(examples). ▶ With an empty gas tank or not enough pressure in the tank.
▶ After refuelling with natural gas.
▶ At very low surrounding temperatures.
To ensure the correct functioning of the fuel system, every 6 months the fuel tank for petrol should be run down until the warning light comes on.
Gas leak
If a gas leak is suspected (noticeable odour), proceed as follows. ▶ Stop the vehicle.
▶ Switch off the ignition.
▶ Extinguish cigarettes, switch off spark-producing or incendiary items and re-
move them from the vehicle.
▶ Open the doors and the boot lid to ventilate the vehicle sufficiently.
▶ Do not continue to drive if the odour persists.
▶ If it is not possible to leave an enclosed area with a vehicle with a gas leak
(e.g. in a tunnel, underpass, garage, ferry, etc.), call the emergency services
immediately.
Seek help from a specialist garage to correct the gas system fault.
In a traffic accident
If a gas leak is suspected in a traffic accident, proceed as follows.
▶ Switch off the ignition.
▶ Extinguish cigarettes, switch off spark-producing or incendiary items and re-
move them from the vehicle.
▶ Have all the occupants get out.
▶ Keep all persons away from the vehicle. We recommend standing at least 10
metres from the vehicle.
▶ Inform the emergency services that it is a natural gas vehicle.
Regular gas system checks
Regular gas system checks must be carried out in a specialist workshop on
natural gas-powered vehicles. The vehicle owner is responsible for ensuring
tests are conducted properly.
Every 2 years ▶ Check the filler cap.
▶ Check the condition of fuel filler tubes and the sealing ring in the fuel filler
tubes, and clean the sealing ring if necessary.
▶ Check the gas system for leaks and carry out an examination of gas contain-
ers.
Every 20 years ▶ Replace the gas tank.WARNING■ Do not underestimate the smell of gas in the car or when refuelling - risk
of fire, explosion and injury.■
The natural gas tanks in the vehicle must not be exposed to unwanted
heat sources.
Engine compartment
Introduction
This chapter contains information on the following subjects:
Opening and closing the bonnet
253
Engine compartment overview
254
Windscreen washer fluid
254
252General Maintenance
Page 307 of 324

Engine oil255
Check256
Oil changing255
Refilling256
Specification255
Warning light38
Enter destination Address
172
Destination on the map173
Environment monitoring system Settings in Infotainment
219
EPC35
Equalizer122
ESC ESC Sport
200
Operation200
Warning light34
External device data transfer123
External module CD / DVD
139
SD card140
SIM card154
Video DVD145
F
Factory settings
124 , 131
Fastening elements94
Fatigue detection228
Favourite174, 179
file formats media
142, 143
Requirements and Restrictions142, 143
File formats DVD video
146
Pictures145
Films245
Finish route guidance181
Fire extinguisher265
First aid kit265
Flagged destination174
Flashing65
Floor covering in the luggage compartment96
Flooring in the luggage compartment96
Floor mats194
See Floor mats194
FM133
Set125, 131
Fog lights Warning light
37
Fog lights/rear fog light67
Fog lights with CORNER function68
Force limiter Electric boot lid
57
Sliding/tilting roof62
Window60
Front assist Warning light
40
Front Assist219
Deactivation/activation220
Distance warning219
Malfunctions221
Operation219
Radar sensor199
Settings in Infotainment219
Warning and automatic braking220
Warning light40
Front seats76
fuel Gas gauge
31
Gasoline / Diesel gauge31
Fuel248
Diesel250
refer to Fuel248
Refuel CNG251
Refuelling249
Unleaded petrol249
Warning light36
Fuel consumption291
Fuel filter Information messages40
Fuel options129
Fuel reserve Petrol diesel
36
Function surfaces116
Fuses278
in the engine compartment281
in the switchboard279, 280
Plastic clip281
G
Gas station
173
Gearbox Information messages
37
Gear change Gear recommendation
42
Information on the selected gear42
Gear changing lever
193
Genuine parts241
Glasses compartment87
GPS169
Graphical driving recommendations180
Guarantee5
H
Handbrake
192
Warning light33
Hazard warning light system68
HBA202
Headrests80
Heating104, 105
Air distribution control107
Mirrors74
Seats81
Windscreen and rear window71
HHC202
High-beam assistant67
305Index
Page 312 of 324

Passive safetyBefore setting off12
Driving safety12
Passive Safety12
Pedals194
Floor mats194
Personalisation Configuration wizard
118
Personal POIs175
Petrol249
Petrol station logo128
Phone Bluetooth® update
153
Compatibility153
Introductory information149
rSAP155
Voice control119
Phonebox84
Phone compatibility153
Phone Premium SIM card
154
Pictures Compatible sources
145
File formats145
Requirements and restrictions145
Supported file formats145
Pin code set to
126
Playback Video DVD
145
Plsyback Media
137
Pockets88
Pockets in the luggage compartment95
POI175
Choose on the map176
Import175
My POIs175
Tap on the map176
Pop-up window Map178
Positioning the jack
269
Power limit Tilt / slide sunroof
62
Power steering33
Power windows Button in the front passenger door
60
Button in the rear doors60
Practical features Pockets
88
Seat backrest with long cargo channel89
Storage compartment for umbrella87
Waste container85
Preferred contacts159
Preheating unit35
Principles of Infotainment operation116
Proactive passenger protection223
Warning light35
R
Rack
103
Radiator shutters198
radio Select station
133
Radio Broadcasting
133
DAB - settings132
DAB settings125
FM - settings125, 131
L-band126
List of available stations134
Main menu133
Operation133
Preface133
Radio station logo135
Save station135
Scan133
Search stations133
set to125, 131
Station buttons135
Traffic program (TP)136
Voice control119
Radio station logo135
Radio station logos Update
125
Radio stations Choose
133
Logo135
Save station135
Search stations133
Select station133
Station buttons135
Raising the vehicle269
Rear fog light67
Warning light34
Rear seats79
Rear view mirror73
Rear window - heating71
Record waypoints184
Refilling Coolant
257
Engine oil256
Windscreen washer fluid254
Reflective vest265
Refuelling249
Fuel249
Regulation Headlight beam
64
Remote Change battery
275
Remote control Auxiliary heating (auxiliary heating and ventila- tion)
110
Synchronisation process55
Unlocking/locking the vehicle52
Remote transfer of SIM data155
Removable through-loading bag89
310Index