Instruments and controls87In 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.
Fuel for liquid gas operation 3 166.
Engine coolant temperature gauge
Displays the coolant temperature.
50:engine operating
temperature not yet
reachedcentral
area:normal operating
temperature130:temperature too highCaution
If engine coolant temperature is
too high, stop vehicle, switch off
engine. Danger to engine. Check
coolant level.
Service display
The engine oil life system informs
when to change the engine oil and
filter. Based on driving conditions, the interval at which an engine oil and
filter change will be indicated can vary
considerably.
When the system has calculated that
engine oil life has diminished, a
warning message appears in the
Driver Information Centre. Have
engine oil and filter changed by a
workshop within one week or
500 km (whichever occurs first).
Driving and operating137Note
In the event of an accident with
airbag deployment, the engine is
turned off automatically if the vehicle
comes to a standstill within a certain
time.Engine exhaust9 Danger
Engine exhaust gases contain
poisonous carbon monoxide,
which is colourless and odourless and could be fatal if inhaled.
If exhaust gases enter the interior
of the vehicle, open the windows.
Have the cause of the fault
rectified by a workshop.
Avoid driving with an open load
compartment, otherwise exhaust
gases could enter the vehicle.
Exhaust filter
The exhaust filter is a particle filter for diesel and gasoline engines.
Automatic cleaning process
The exhaust filter system filters
harmful soot particles out of the
exhaust gases. The system includes
a self-cleaning function that runs
automatically during driving without
any notification. The filter is cleaned
by periodically burning off the soot
particles at high temperature. This
process takes place automatically
under set driving conditions and may
take up to 25 minutes. Typically it
needs between seven and twelve
minutes. Autostop is not available
and fuel consumption may be higher
during this period. The emission of
smells and smoke during this process is normal.
System requires manual cleaning
process
Under certain driving conditions, e.g.
driving short distances, the system
cannot clean itself automatically.
If cleaning of the filter is required and
if previous driving conditions did not
enable automatic cleaning, it will be
138Driving and operatingindicated by illumination of % and a
warning message in the Driver
Information Centre.
% illuminates along with a warning
message illuminates when exhaust
filter is full. Start cleaning process as
soon as possible.
% flashes along with a warning
message when exhaust filter has
reached the maximum filling level.
Start cleaning process immediately to avoid damage to the engine.
Activate manual cleaning process
To activate cleaning process,
continue driving, keep engine speed
above 2000 rpm. Shift down if
necessary. Exhaust filter cleaning is
then started.
Cleaning takes place quickest at high
engine speeds and loads.
Control indicator % extinguishes as
soon as the self-cleaning operation is complete. Keep on driving until self-
cleaning operation is complete.Caution
If possible, do not interrupt
cleaning process. Drive until
cleaning is completed to avoid the need for service or repair by a
workshop.
Cleaning process not possible
If cleaning is not possible for anyreasons, control indicator Z
illuminates and a warning message
appears in the Driver Information
Centre. Engine power may be
reduced. Seek the assistance of a
workshop immediately.
Catalytic converter
The catalytic converter reduces the
amount of harmful substances in the
exhaust gases.
Caution
Fuel grades other than those listed on pages 3 164, 3 224 could
damage the catalytic converter or
electronic components.
Unburnt petrol will overheat and
damage the catalytic converter.
Therefore avoid excessive use of the starter, running the fuel tank
dry and starting the engine by
pushing or towing.
In the event of misfiring, uneven
engine running, a reduction in engine performance or other unusual
problems, have the cause of the fault
rectified by a workshop as soon as
possible. In an emergency, driving
can be continued for a short period,
keeping vehicle speed and engine
speed low.
241Control indicators.......................... 88
Control of the vehicle .................129
Controls ........................................ 77
Convex shape .............................. 33
Coolant and antifreeze ...............217
Cruise control ...................... 96, 150
Cupholders .................................. 59
Curtain airbag system .................. 51
D Danger, Warnings and Cautions ...4
Daytime running lights ...............115
Declaration of conformity ............231
DEF ............................................ 139
Delayed locking ............................ 28
Descent control system .......94, 149
Diesel exhaust fluid ....................139
Diesel fuel system bleeding .......182
Door open .................................... 97
Doors ............................................ 30
Driver assistance systems ..........150
Driver Information Centre .............97
Driving characteristics and towing tips .............................. 171
Driving hints ................................ 129
E Electric adjustment ......................33
Electrical system......................... 188
Electronic climate control system 124
Electronic driving programmes ..143Electronic key system ...................23
Electronic Stability Control.......... 148
Electronic Stability Control and Traction Control system ............94
Electronic Stability Control off....... 94
End-of-life vehicle recovery .......176
Engine compartment fuse box ...189
Engine coolant ........................... 179
Engine coolant temperature gauge ....................................... 87
Engine data ............................... 224
Engine exhaust .......................... 137
Engine identification ...................220
Engine oil ................... 178, 217, 221
Engine oil pressure ......................95
Entry lighting .............................. 120
Event data recorders ..................236
Exhaust filter ............................... 137
Exit lighting ................................ 121
Exterior care .............................. 213
Exterior light ................................. 96
Exterior lighting ....................13, 111
Exterior mirrors ............................. 33
F
Fault ........................................... 143
First aid kit ................................... 73
Fixed air vents ........................... 127
Flex-Fix system ............................ 61
Folding mirrors ............................. 33Following distance indication ......155
Forward collision alert................. 153
Front airbag system .....................50
Front fog lights .............96, 118, 185
Front seats.................................... 40
Front storage ................................ 60
Fuel............................................. 164
Fuel for diesel engines ..............166
Fuel for liquid gas operation .......166
Fuel for petrol engines ...............164
Fuel gauge ................................... 85
Fuel selector ................................ 86
Fuses ......................................... 188
G
Gauges ......................................... 84
Gear shifting ................................. 94
General information ...................171
Glovebox ..................................... 59
Glove box lighting .......................120
H Halogen headlights ....................184
Hand brake ................................. 146
Hazard warning flashers ............117
Headlight flash ........................... 113
Headlight range adjustment ......114
Headlights when driving abroad 114
Head restraint adjustment .............8
Head restraints ............................ 39
Heated mirrors ............................. 34