refuelling Seat Leon SC 2014 Owner's manual

Table of Contents
Table of Contents
The essentials . . . . . . . . . . . . . . . . . . . . . . . . 5
Exterior view . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Interior view . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
How it works . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Unlocking and locking . . . . . . . . . . . . . . . . . . . . 9
Before driving . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Starting the vehicle . . . . . . . . . . . . . . . . . . . . . . 14
Lights and visibility . . . . . . . . . . . . . . . . . . . . . . 15
Easy Connect . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Driver information system . . . . . . . . . . . . . . . . . 19
Cruise control . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Warning lamps . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Gearbox lever . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Air conditioning . . . . . . . . . . . . . . . . . . . . . . . . . 26
Level control . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Action in the event of a puncture . . . . . . . . . . . 33
Emergency towing of the vehicle . . . . . . . . . . . 35
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Safe driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Safety first! . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Advice about driving . . . . . . . . . . . . . . . . . . . . . 37
Sitting position for vehicle occupants . . . . . . . 38
Pedal area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Seat belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
The reasons why we should wear seat belts . . 43
How to properly adjust your seatbelt . . . . . . . . 46
Seat belt tensioners . . . . . . . . . . . . . . . . . . . . . . 47
Airbag system . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Brief introduction . . . . . . . . . . . . . . . . . . . . . . . . 48
Airbag overview . . . . . . . . . . . . . . . . . . . . . . . . . 50
Deactivating airbags . . . . . . . . . . . . . . . . . . . . . 54
Transporting children safety . . . . . . . . . . . . . . . 56
Safety for children . . . . . . . . . . . . . . . . . . . . . . . 56
Child seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 Operation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Controls and displays . . . . . . . . . . . . . . . . . . . . 65
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Instruments and warning/control lamps . . . . . 66
Instruments . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Control lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Driver information system . . . . . . . . . . . . . . . . . 72
Information system . . . . . . . . . . . . . . . . . . . . . . 72
Driving data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Speed warning function . . . . . . . . . . . . . . . . . . . 79
Service interval display . . . . . . . . . . . . . . . . . . . 80
Introduction to the Easy Connect system* . . . . 81
System Settings (CAR)* . . . . . . . . . . . . . . . . . . . 81
Opening and closing . . . . . . . . . . . . . . . . . . . . . 82
Central locking system . . . . . . . . . . . . . . . . . . . . 82
Anti-theft alarm system* . . . . . . . . . . . . . . . . . . 87
Rear lid (luggage compartment) . . . . . . . . . . . . 89
Electric windows . . . . . . . . . . . . . . . . . . . . . . . . . 90
Panoramic sliding sunroof* . . . . . . . . . . . . . . . . 92
Lights and visibility . . . . . . . . . . . . . . . . . . . . . . 94
Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Visibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Windscreen wiper and window wiper systems . 102
Rear vision mirror . . . . . . . . . . . . . . . . . . . . . . . . 104
Seats and head restraints . . . . . . . . . . . . . . . . . 106
Adjusting the seats and headrests . . . . . . . . . . 106
Seat functions . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Transport and practical equipment . . . . . . . . . 111
Storage compartments . . . . . . . . . . . . . . . . . . . 111
Storing objects . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Roof carrier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Air conditioning . . . . . . . . . . . . . . . . . . . . . . . . . 124
Heating, ventilation and cooling . . . . . . . . . . . . 124
Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Ignition lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Braking and parking . . . . . . . . . . . . . . . . . . . . . 131
Manual gearbox . . . . . . . . . . . . . . . . . . . . . . . . . 132 Automatic gearbox/DSG automatic gearbox* . 132
Run-in and economical driving . . . . . . . . . . . . . 140
Driver assistance systems
. . . . . . . . . . . . . . . . . 143
Braking and stability systems . . . . . . . . . . . . . . 143
Start-Stop system* . . . . . . . . . . . . . . . . . . . . . . . 148
Cruise control system (CCS)* . . . . . . . . . . . . . . . 150
Adaptive Cruise Control ACC* . . . . . . . . . . . . . . 151
Monitoring system Front Assist* . . . . . . . . . . . . 161
Lane Assist system* . . . . . . . . . . . . . . . . . . . . . . 166
SEAT driving modes (SEAT Drive Profile)* . . . . . 169
Tiredness detection (break recommendation)* 172
Parking aid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
Towing bracket device . . . . . . . . . . . . . . . . . . . . 177
Trailer towing . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Advice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
Care and maintenance . . . . . . . . . . . . . . . . . . . . 182
Accessories and modifications to the vehicle . 182
Care and cleaning . . . . . . . . . . . . . . . . . . . . . . . 183
Vehicle exterior care . . . . . . . . . . . . . . . . . . . . . . 183
Care of the vehicle interior . . . . . . . . . . . . . . . . . 187
Intelligent technology . . . . . . . . . . . . . . . . . . . . 190
Electro-mechanical steering . . . . . . . . . . . . . . . 190
Progressive steering . . . . . . . . . . . . . . . . . . . . . 190
Four-wheel drive . . . . . . . . . . . . . . . . . . . . . . . . . 191
Power Management . . . . . . . . . . . . . . . . . . . . . . 191
Checking and refilling levels . . . . . . . . . . . . . . . 193
Refuelling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
Bonnet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
Cooling system . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
Windscreen washer reservoir . . . . . . . . . . . . . . 204
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208
Wheels and tyres . . . . . . . . . . . . . . . . . . . . . . . . 208
Tyre monitoring systems . . . . . . . . . . . . . . . . . . 212
3

Operation
Engine cold
If only the diodes in the lower part of the
scale light up, this indicates that the engine
has not yet reached operating temperature.
Avoid high revs and heavy acceleration and
do not make the engine work hard.
Normal temperature
If in normal operations, the diodes light up
until the central zone, it means that the en-
gine has reached operating temperature. At
high outside temperatures and when making
the engine work hard, the diodes may contin-
ue lighting up and reach the upper zone. This
is no cause for concern, provided the control
lamp  does not light up on the instrument
panel digital display.
Heat range
When the diodes light up in the upper area of
the display and the control lamp appears 
on the instrument panel display, the coolant
temperature is excessive ››› page 203. CAUTION
● To ensure a long useful life for the engine,
avoid high revs, driving at high speed and
making the engine work hard for approxi-
mately the first 15 minutes when the engine
is cold. The phase until the engine is warm al-
so depends on the outside temperature. If
necessary, use the engine oil temperature*
››› page 77 as a guide. ●
Additional lights and other accessories in
front of the air inlet reduce the cooling effect
of the coolant. At high outside temperatures
and high engine loads, there is a risk of the
engine overheating.
● The front spoiler also ensures proper distri-
bution of the cooling air when the vehicle is
moving. If the spoiler is damaged this can re-
duce the cooling effect, which could cause
the engine to overheat. Seek specialist assis-
tance. Fuel level - Gas
Fig. 85
Fuel gauge. Displays
2 and
6
››› Fig. 82 only work when
the ignition i s
switched on. When the display
reaches the reserve mark, the lower diode
lights up in red and the control lamp  ap-
pears ››› page 66. When the fuel level is very
low

, the lower diode flashes in red. The yellow control lamp 
lights up when the
reserve level has been reached.
The green warning lamp 
lights up when the
vehicle is running in natural gas operating
mode.
The green warning lamp 
switches off when
the natural gas is exhausted. The engine
changes to operate with petrol.
Problem:
If the vehicle is left parked for a
long time immediately after refuelling, the
natural gas level indicator may not accurately
indicate the same level shown after refuelling
when the vehicle is started up again. This is
not due to a leak in the system, but to a drop
in pressure in the gas tank for technical rea-
sons after a cooling phase just after refuel-
ling.
Fuel level - Petrol/Diesel Fig. 86
Fuel gauge.70

Operation
are preheating. When the warning lamp goes
off, the engine should be started straight
away.
Control lamp  flashes
If a f
ault develops in the engine management
system while you are driving, the glow plug
system lamp will flash 
. Take the vehicle to
a specialised workshop as soon as possible
and have the engine checked. Driver information system
Information system Introduction With the ignition switched on, it is possible
to read the different functions of the display
by scrolling through the menus.
In vehicles with multifunction steering wheel,
the multifunction display can only be operat-
ed with the steering wheel buttons.
The number of menus displayed on the in-
strument panel will vary according to the ve-
hicle electronics and equipment.
A specialised workshop will be able to pro-
gramme or modify additional functions, ac-
cording to the vehicle equipment. SEAT rec-
ommends visiting a SEAT Official Service.
Some menu options can only be read when
the vehicle is at a standstill.
As long as a priority 1 warning is displayed, it
will not be possible to read the menus. Some
warning messages can be confirmed and
made to disappear with the windscreen wiper
lever button or the multifunction steering
wheel button.
The information system also provides the fol-
lowing information and displays (depending
on the vehicle's equipment):Driving data
››› page 76
■ Vehicle status
■ MFD from departure
■ MFD from refuelling
■ MFD total calculation
Assist systems ››› table on page 74
■ Activate/deactivate Lane Assist
■ Reverse (optional)
Navigation › ››
Book
let Navigation system
Audio
››› Booklet Radio or ››› Booklet Naviga-
tion system
Telephone
››› Booklet Radio or ››› Book-
let Navigation system
Vehicle
››› table on page 74 WARNING
Any distraction may lead to an accident, with
the risk of injury.
● Do not operate the instrument panel con-
trols when driving. 72

Operation
Assist systems submenuAssist
systems
menuFunction
Lane As-
sist*Switching the Lane Assist system on or off
››› page 168.
Tiredness
detection*Switching the tiredness detection on or off
(pause recommendation) ››› page 172. Driving data
Presets The MFD (multifunction display) shows differ-
ent values for the journey and the consump-
tion.
Changing between display modes on the
MFD
● In vehicles without multifunction steering
wheel: Press the rocker switch  on the
windscreen wiper lever ›››
Fig. 87 .
● Vehicle

s with a multifunction steering
wheel: turn the thumbwheel ››
› Fig. 88.
Mu
ltifunction display memory
The multifunction display is equipped with
three memories that work automatically: MFD
from departure, MFD from refuelling, MFD to- tal calculation. On the screen display, you
can read which memory is currently dis-
played.
To change between memories with the igni-
tion on and the memory shown, press the
button
 on the windscreen wiper lever
or you can also change between memories
using the button  on the multifunction
steering wheel.
MenuFunction
MFD from
depar-
ture
Display and storage of the values for the
journey and the consumption from when the
ignition is switched on to when it is switch-
ed off.
If the journey is continued in less than 2
hours after the ignition is switched off, the
new data is added to the data already stor-
ed in the memory. The memory will auto-
matically be deleted if the journey is inter-
rupted for more than 2 hours.
MFD from
refuellingDisplay and storage of the values for the
journey and the consumption. By refuelling,
the memory will be erased automatically.
MFD total
calcula-
tion
The memory records the values for a specif-
ic number of partial trips, up to a total of 19
hours and 59 minutes or 99 hours and 59
minutes, or 1999.9 km or 9999 km, de-
pending on the model of instrument panel.
On reaching either of these limits a)
, the
memory is automatically erased and starts
to count from 0 again.
a) It varies according to the type of instrument panel fitted.
Erasing a memory manually
● Select the memory that you wish to erase.
● Hold the  button of the multifunction
steering wheel or the  button of the multi-
function wheel pressed down for about 2 sec-
onds.
Personalising the displays
In the Easy Connect system you can adjust
which of the possible displays of the MFD can
be shown on the instrument panel display
with the button  and the function button
Setup
››› page 81 .
Dat a s

ummary
MenuFunction
Current fuel
consumption
The current fuel consumption display
operates throughout the journey, in li-
tres/100 km; and with the engine run-
ning and the vehicle stopped, in li-
tres/hour.
Average fuel
consumption a)
After turning on the ignition, average
fuel consumption in litres/100 km will
be displayed after travelling about 100
metres. Otherwise horizontal lines are
displayed. The value shown is updated
approximately every 5 seconds.
ACT®
*: Depending on the equipment,
number of active cylinders. 76

Lights and visibility
Windscreen wiper functionsWindscreen wiper performance in different sit-
uations
If the vehicle is at a
standstillThe activated position provision-
ally changes to the previous posi-
tion.
During automatic
wipe
The air conditioner comes on for
approximately 30 seconds in air
recirculation mode to prevent the
smell of the windscreen washer
fluid entering the inside the vehi-
cle.
For the interval wipe
Intervals between wipes depend
on the vehicle's speed. The high-
er the vehicle speed the shorter
the intervals. Heated windscreen washer jets
The heating only thaws the frozen jets, it
does not thaw the water in the washer hoses.
The heated windscreen washer jets automati-
cally adjust the heat depending on the ambi-
ent temperature, when the ignition is switch-
ed on.
Headlight wash/wipe system
The headlight washers/wipers clean the
headlight lenses.
After the ignition is switched on, the first and
every fifth time the windscreen washer is
switched on, the headlights are also washed. Therefore, the windscreen wiper lever should
be pulled towards the steering wheel when
the dipped beam or main beam are on. Any
incrusted dirt (such as insects) should be
cleaned regularly (e.g. when refuelling).
To ensure the headlight washers work cor-
rectly in winter, any snow which has got into
the bumper jet supports should be cleaned
away. If necessary, remove snow with an anti-
icing spray.
Note
The wiper will try to wipe away any obstacles
that are on the windscreen. The wiper will
stop moving if the obstacle blocks its path.
Remove the obstacle and switch the wiper
back on again. Rain sensor*
Fig. 103
Windscreen wiper lever: adjusting
the rain sensor A Fig. 104
Rain sensor sensitive surface The rain sensor controls the frequency of the
windscreen wiper intervals, depending on
the amount of rain
››› . The sensitivity of the
rain sensor can be adjusted manually. Man-
ual wipe ››› page 102 .
Mo v

e the lever to the required position
››› Fig. 103:
Rain sen
sor off.
Rain sensor on; automatic wipe if neces-
sary.
Setting sensitivity level of rain sensor
– Set control to the right: highly sensi-
tive.
– Set control to the left: less sensitive.
When the ignition is switched off and then
back on, the rain sensor stays on and starts
operating again when the windscreen wipers
are in position 1 and the vehicle is travel-
ling at more than 16 km/h (10 mph). »
0 1
A
103
Technical specifications
Advice
Operation
Safety
The essentials

Checking and refilling levels
especially if the battery is not fully charged
initially.
To restore the necessary energy balance, the
system will then temporarily shut off the elec-
trical devices that are using a lot of power, or
reduce the current they are consuming. Heat-
ing systems in particular use a large amount
of electrical power. If you notice, for instance,
that the seat heating* or the rear window
heater is not working, they may have been
temporarily switched off or regulated to a
lower heat output. These systems will be
available again as soon as sufficient electri-
cal power is available.
You may also notice that the engine runs at a
slightly faster idling speed when necessary.
This is quite normal, and no cause for con-
cern. The increased idling speed allows the
alternator to meet the greater power require-
ment and charge the battery at the same
time. Checking and refilling levels
Refuelling Filling the tank Read the additional information carefully
›››  page 31
If the automatic filler nozzle is operated cor-
rectly, it will switch itself off as soon as the
fuel tank is “full”. Do not try to put in more
fuel after the nozzle cuts out, as this will fill
the expansion chamber in the fuel tank.
The correct fuel grade for your vehicle is giv-
en on a sticker on the inside of the fuel tank
flap. Further notes on fuel can be found at
››› page 195 .
The c ap
acity of the fuel tank is listed in the
vehicle
technical specifications ›››
page 268. WARNING
Fuel is highly flammable and can cause seri-
ous burns and other injuries.
● Do not smoke when filling the fuel tank or a
canister. Naked flames are forbidden in the
vicinity due to the risk of explosion.
● Observe legislation governing the use,
storage and carrying of a spare fuel canister
in the vehicle.
● For safety reasons we do not recommend
carrying a spare fuel canister in the vehicle. In an accident the canister could be damaged
and could leak.
●
If, in exceptional circumstances, you have
to carry a spare fuel canister, please observe
the following points:
– Never fill fuel into the spare fuel canister
if it is inside or on top of the vehicle. An
electrostatic charge could build up during
filling, causing the fuel vapour to ignite.
Danger of explosion. Always place the
canister on the ground to fill it.
– Insert the filling nozzle as far as possible
into the spare fuel canister.
– If the spare fuel canister is made of met-
al, the filling nozzle must be in contact
with the canister during filling. This
helps prevent an electrostatic charge
building up.
– Never spill fuel in the vehicle or in the
luggage compartment. Fuel vapour is ex-
plosive. Risk of fatal accident! CAUTION
● If any fuel is spilt onto the vehicle, it
should be removed immediately. It could oth-
erwise damage the paintwork.
● Never run the tank completely dry. An irreg-
ular fuel supply could cause misfiring. As a
result, unburnt fuel could enter the exhaust
system and damage the catalytic converter.
● When filling the fuel tank after having run it
completely dry on a vehicle with a diesel en-
gine, the ignition must be switched on for at » 193
Technical specifications
Advice
Operation
Safety
The essentials

Advice
least 30 seconds before starting the engine.
When you then start the engine it may take
longer than normal (up to one minute) to
start firing. This is because air needs to be
bled from the fuel system while starting.
For the sake of the environment
Do not overfill the fuel tank, it may cause the
fuel to overflow if it becomes warm. Note
Diesel vehicles are fitted with a protective de-
vice that prevents the insertion of the wrong
fuel hose 1)
. It is only possible to refuel with
Diesel nozzles.
● If the pump nozzle is worn, damaged, or if
it is very small, it is possible that it will not
be able to open the protective device. Before
trying to insert the pump nozzle by turning it,
try a different pump or request specialist
help.
● If you fill the tank from a reserve fuel canis-
ter, the protective device will not open. One
way to resolve this is to pour the fuel in very
slowly. Refuelling with natural gas
Fig. 173
Tank flap open: gas filler mouth 1 ,
filler mouth retainer 2 Before refuelling, the engine and the igni-
tion, mobile telephone and heating must be
switched off separately
››› .
Read the instructions on how to use the natu-
ral gas pump carefully.
The vehicle is not prepared for refuelling with
liquefied natural gas (LNG) ››› . Before refu-
elling with natural gas, make sure you add
the appropriate type of fuel ››› page 195.
Opening the fuel tank cap
The natural gas filler mouth is behind the fuel
tank cap, next to the petrol filler mouth. ●
Unlock the vehicle with the key or with the
central locking button  situated on the driv-
er door ››› page 82 .
● Pr e
ss on the rear area of the flap and open
it.
Refuelling
Things to note: if the ambient temperature is
very high, the natural gas pump protection
against overheating disconnects this auto-
matically.
● Remove the plug from the gas filler mouth
››› Fig. 173 1 .
● Connect the pump filling nozzle to the gas
filler mouth.
● The fuel tank will be full when the pump
c ompr

essor automatically cuts the supply.
● If you wish to finish refuelling in advance,
press the button on the pump to stop the
flow.
Closing the fuel tank cap
● Check that the gas filler mouth retainer 2 is not trapped with the filler nozzle. If neces-
sary, place it in the filler mouth again.
●
Insert the plug in the filler mouth.
● Close the tank flap. Make sure you hear it
click into place. 1)
Depending on country
194

Checking and refilling levels
WARNING
Natural gas is a highly explosive, easily flam-
mable substance. Incorrect handling of the
natural gas can cause accidents serious
burns and other injuries.
● Before refuelling with natural gas, engage
the filling mouth correctly. If you can smell
gas, stop refuelling immediately. WARNING
The vehicle is not prepared to use liquefied
natural gas (LNG), and this fuel must not be
added under any circumstances. Liquefied
natural gas can cause the natural gas tank to
explode, resulting in serious injury. Note
● The filling nozzles of natural gas pumps
can differ in the way they are operated. If you
do not know, ask a qualified employee at the
petrol station to do the refuelling.
● Noises heard when refuelling are normal
and do not indicate the presence of a fault in
the system.
● The vehicle natural gas system is prepared
both for refuelling with a small compressor
(slow refuel) and a large compressor (fast re-
fuel) in natural gas service stations. Fuel
Types of petrol The correct grade of petrol is listed inside the
fuel tank flap.
The vehicle is equipped with a catalytic con-
verter and must only be run on
unleaded pet-
rol. The petrol must comply with European
St and
ard EN 228 or German standard DIN
51626-1 and must be unleaded. You can re-
fuel with a maximum ethanol proportion of
10 % (E10). The types of petrol are differenti-
ated by their octane rating (RON).
The f o

llowing titles appear on the corre-
sponding adhesive on the fuel tank flap:
Super unleaded 95 octane or normal 91
octane unleaded petrol
We recommend you use super 95 octane pet-
rol. If this is not available: normal 91 octane
petrol, with a slight decrease in power.
Super unleaded petrol with a minimum of 95
octanes
You should use super petrol with a minimum
of 95 octanes.
If super is not available, in an emergency you
may refuel with normal 91 octane petrol. In
this case only use moderate engine speeds
and a light throttle. Refuel with super as soon
as possible. Super unleaded 98 octane or super 95
octane unleaded petrol
We recommend you use super plus 98 octane
petrol. If this is not available: super 95 oc-
tane petrol, with a slight decrease in power.
If super is not available,
in an emergency you
may refuel with normal 91 octane petrol. In
this case only use moderate engine speeds
and a light throttle. Refuel with super as soon
as possible.
Petrol additives
The quality of the fuel influences the behav-
iour, power and service life of the engine.
This is why the petrol you use should carry
suitable additives already included by the
petrol industry, free of metals. These addi-
tives will help to prevent corrosion, keep the
fuel system clean and prevent deposits from
building up in the engine.
If good-quality petrol with metal-free addi-
tives is not available or engine problems
arise, the necessary additives must be added
when refuelling ››› .
Not all petrol additives have been shown to
be effective. The use of unsuitable petrol ad-
ditives may cause significant damage to the
engine and the catalytic converter. Metal ad-
ditives should never be used. Metal additives
may also be contained in petrol additives for
improving anti-detonation ratings or octane
ratings ››› .
»
195
Technical specifications
Advice
Operation
Safety
The essentials

Checking and refilling levels
Liquefied natural gas (LNG) is the result of
heavy cooling of natural gas. Therefore its
volume is considerably reduced compared
with compressed natural gas (CNG). In vehi-
cles with a natural gas engine, liquefied nat-
ural gas cannot be directly refilled, as the gas
would expand excessively in the vehicle gas
tank.
Therefore, vehicles with a natural gas engine
must only be refuelled using compressed
natural gas ››› .
Natural gas quality and consumption
Natural gas is divided into the groups H and
L depending on its quality.
Gas type H has a superior heating power and
inferior nitrogen and carbon dioxide content
than type L. The higher the heating power of
the natural gas, the lower the consumption
will be.
However, the heating power and the propor-
tion of nitrogen and carbon dioxide can fluc-
tuate within the quality groups. Therefore, ve-
hicle consumption can also vary when using
a single type of gas only.
The engine management automatically
adapts to the natural gas used according to
its quality. Therefore, different quality gases
can be mixed in the tank, without the need
for comprehensive draining before applying a
different quality gas. Updated information relating to natural gas
quality is displayed on the instrument panel
››› page 72 .
Nat ur
al gas and safety
If you can smell gas or suspect that there is a
leak ››› :
● Stop the vehicle immediately.
● Switch the ignition off.
● Open the doors to appropriately ventilate
the vehicle.
● Extinguish cigarettes immediately.
● Move away from the vehicle or switch off
objects that may cause sparks or a fire.
● If you continue to smell gas, do not contin-
ue driving!
● Seek specialist assistance. Have the fault
repaired. WARNING
Failure to act when you can smell gas in the
vehicle or when refuelling can cause serious
injuries.
● Carry out the necessary operations.
● Leave the danger zone.
● If necessary, warn the emergency services. WARNING
The vehicle is not prepared to use liquefied
natural gas (LNG) and this fuel must not be
added under any circumstances. Liquefied
natural gas can cause the natural gas tank to
explode, resulting in serious injury. Note
Have the natural gas system checked regular-
ly by a specialised workshop, according to
the Maintenance Programme. 197
Technical specifications
Advice
Operation
Safety
The essentials

Index
Engine coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . 203 G 12 plus-plus . . . . . . . . . . . . . . . . . . . . . . . . . 203
G 13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Engine fault control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Engine management control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 Changing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Checking oil level . . . . . . . . . . . . . . . . . . . . . . . 201
Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . 201
Engine oil dipstick . . . . . . . . . . . . . . . . . . . . . . 201
Inspection service . . . . . . . . . . . . . . . . . . . . . . 200
Longlife inspection service . . . . . . . . . . . . . . . 200
Oil properties . . . . . . . . . . . . . . . . . . . . . . . . . . 201
Replace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
Service intervals . . . . . . . . . . . . . . . . . . . . . . . . 200
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . 200
Temperature display . . . . . . . . . . . . . . . . . . . . . . 77
Topping up . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Environment Ecological driving . . . . . . . . . . . . . . . . . . . . . . . 142
Environmental friendliness . . . . . . . . . . . . . . . 140
Environmental tip Leaks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
Environmental tips Filling the tank . . . . . . . . . . . . . . . . . . . . . . . . . 194
Refuelling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Environment warning . . . . . . . . . . . . . . . . . . . . . . 174
Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
ESC Electronic stability control . . . . . . . . . . . . . . . . 143
Multi-collision brake . . . . . . . . . . . . . . . . . . . . . 144
Sport Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Ethanol (fuel) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195 Exhaust gas filtration system
Catalytic converter . . . . . . . . . . . . . . . . . . . . . . 141
Exhaust tail pipe: Cleaning . . . . . . . . . . . . . . . . . 186
Extending the luggage compartment . . . . . . . . . . . . . . . . 109
Exterior lighting Changing a bulb . . . . . . . . . . . . . . . . . . . . . . . . 233
Exterior mirrors adjusting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Adjusting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Exterior view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
F Fastening rings . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Fault in the gearbox (warning lamp) . . . . . . . . . . 139
Faults Panoramic sliding sunroof . . . . . . . . . . . . . . . . . 93
Faults in the gearbox (warning lamps) . . . . . . . . 139
Faulty bulbs Changing a bulb . . . . . . . . . . . . . . . . . . . . . . . . 233
Filling the fuel tank . . . . . . . . . . . . . . . . . . . . . . . 193
Floor mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Fog light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Folding down the back seats . . . . . . . . . . . . . . . . 109
Folding table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Four wheel drive . . . . . . . . . . . . . . . . . . . . . . . . . . 191
Front airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Front armrest . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Front Assist City Emergency braking function . . . . . . . . . . . 165
malfunction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
on-screen messages . . . . . . . . . . . . . . . . . . . . 162
operating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
radar sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
switching off temporarily . . . . . . . . . . . . . . . . . 164
system limitations . . . . . . . . . . . . . . . . . . . . . . 164
see also Front Assist Monitoring system . . . . . 161 Fr
ont Assist monitoring system
malfunction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
on-screen messages . . . . . . . . . . . . . . . . . . . . 162
operating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
Front Assist Monitoring system . . . . . . . . . . . . . . 161 City Emergency braking function . . . . . . . . . . . 165
radar sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
Front Assist Monitoring System switching off temporarily . . . . . . . . . . . . . . . . . 164
system limitations . . . . . . . . . . . . . . . . . . . . . . 164
Front head restraints . . . . . . . . . . . . . . . . . . . . . . . 41
Front headrests . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Front passenger front airbag Deactivating . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Front seats Manually adjusting . . . . . . . . . . . . . . . . . . . . . . . 12
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31, 195 Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . 241
diesel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196
Ethanol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
natural gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196
Fuel consumption . . . . . . . . . . . . . . . . . . . . . . . . . 242
Fuel tank cap Opening and closing . . . . . . . . . . . . . . . . . . . . . 31
Fuel tank flap Opening and closing . . . . . . . . . . . . . . . . . . . . . 31
Full-LED headlights . . . . . . . . . . . . . . . . . . . . . . . 233
Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33, 231 Fuse box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
Identifying blown fuses . . . . . . . . . . . . . . . . . . 233
Identifying by colours . . . . . . . . . . . . . . . . . . . . 232
Preparation before replacing . . . . . . . . . . . . . . 233
Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . 233
272