2018 VAUXHALL ASTRA J GTC fuel consumption

94Instruments and controlsreset knob between speedometer
and Driver Information Centre with
the ignition on.
On vehicles with trip computer, more
submenus are available.
Selection and indication can be
different between Midlevel-Display
and Uplevel-Combi-Display.
Trip/Fuel Information Menu, Trip
Computer 3 101.
ECO Information Menu Press MENU to select s in the top
line of the Uplevel-Combi-Display.
Turn the adjuster wheel to select a
submenu. Press SET/CLR to confirm.Submenus are:
●Shift indication : Current gear is
indicated inside an arrow. The
figure above recommends
upshifting for fuel saving
reasons.
Eco index display : The current
fuel consumption is indicated on a segment display. For
economical driving, adapt your driving characteristic to keep the
filled segments within the Eco
area. The more segments are
filled, the higher the fuel
consumption. Simultaneously
the current consumption value is
indicated.
● Top Consumers : List of top
comfort consumers currently
switched on is displayed in
descending order. Fuel saving
potential is indicated. A switched off consumer disappears from
the list and the consumption
value will be updated.
During sporadic driving
conditions, the engine will
activate the heated rear window
automatically to increase the
engine load. In this event, the
heated rear window is indicated
as one of the top consumers,
without activation by the driver.

Instruments and controls95
●Economy Trend : Displays the
average consumption
development over a distance of
50 miles. Filled segments display
the consumption in 5 mile steps
and shows the effect of
topography or driving behaviour
on fuel consumption.
Performance Menu
Press MENU to select the
Performance Menu , or select C on
Uplevel-Combi-Display.
Turn the adjuster wheel to select a
submenu. Press SET/CLR to confirm.
Submenus are: ● Acceleration : Display of current
acceleration in all directions.
● Lap Timer : Display of lap times,
top speed, average speed and
average time. Follow the
instructions given in the
submenu.
● Coolant Temp. : Display of
coolant temperature.
● Battery Volt. : Display of vehicle
battery voltage.
Graphic-Info-Display, Colour-Info-Display
Depending on the vehicle
configuration the vehicle has a
Graphic-Info-Display or Colour-Info-
Display. The Info-Display is located in
the instrument panel above the
Infotainment system.
Graphic-Info-Display

Instruments and controls101Trip computer
The menus and functions can be
selected via the buttons on the turn signal lever 3 91.
Press MENU to select the Trip/Fuel
Information Menu , or select W on
the Uplevel-Combi-Display.
Trip/Fuel Information Menu on
Uplevel-Combi-Display
Turn the adjuster wheel to select the
submenus:● trip odometer 1
● average consumption 1
● average speed 1
● trip odometer 2
● average consumption 2
● average speed 2

102Instruments and controls
● digital speed
● range
● instantaneous consumption
● route guidance
Trip computer 1 and 2 The information of two trip computerscan be reset separately for odometer,
average consumption and average
speed by pressing SET/CLR, making
it possible to display different trip
information for different drivers.Trip odometer
Trip odometer displays the recorded
distance since a certain reset.
Trip odometer counts up to a distance
of 2000 miles and then restarts at 0.
To reset, press SET/CLR for a few
seconds.
Range Range is calculated from current fuel
tank content and current
consumption. The display shows
average values.
After refuelling, the range is updated
automatically after a brief delay.
When the fuel level in the tank is low,
a message appears on vehicles with
Uplevel-Combi-Display.
When the tank needs to be refuelled
immediately, a warning code or
warning message is displayed on
vehicles with Midlevel-Display or
Uplevel-Combi-Display.
Additionally, control indicator i
illuminates or flashes in the fuel
gauge 3 89.
Average consumption
Display of average consumption. The measurement can be reset at any
time and starts with a default value.
To reset, press SET/CLR for a few
seconds.
Instantaneous consumption
Display of the instantaneous
consumption.
Average speedDisplay of average speed. The
measurement can be reset at any
time.

Driving and operating137Driving and
operatingDriving hints ............................... 138
Control of the vehicle ...............138
Steering ................................... 138
Starting and operating ...............138
New vehicle running-in ............138
Ignition switch positions ...........139
Retained power off ..................139
Starting the engine ..................139
Overrun cut-off ........................ 140
Stop-start system ....................140
Parking .................................... 142
Engine exhaust .......................... 143
Diesel particle filter ..................144
Catalytic converter ...................145
Automatic transmission ..............145
Transmission display ...............145
Selector lever .......................... 146
Manual mode ........................... 147
Electronic driving programmes 147
Fault ........................................ 148
Interruption of power supply ....148
Manual transmission ..................149Brakes........................................ 150
Antilock brake system .............150
Parking brake .......................... 151
Brake assist ............................. 152
Hill start assist ......................... 152
Ride control systems .................153
Traction Control system ..........153
Electronic Stability Control ......153
Interactive driving system ........155
Driver assistance systems .........157
Cruise control .......................... 157
Speed limiter ........................... 159
Adaptive cruise control ............160
Forward collision alert .............167
Following distance indication ...170
Active Emergency Braking ......171
Parking assist .......................... 173
Side blind spot alert .................180
Traffic sign assistant ................181
Lane departure warning ..........185
Fuel ............................................ 186
Fuel for petrol engines .............186
Fuel for diesel engines ............187
Fuel for liquid gas operation ....188
Refuelling ................................ 188
Fuel consumption - CO 2-
Emissions .............................. 191
Trailer hitch ................................ 192
General information .................192Driving characteristics and
towing tips .............................. 192
Trailer towing ........................... 193
Towing equipment ...................193
Trailer stability assist ...............196

138Driving and operatingDriving hints
Control of the vehicle
Never coast with engine not
running (except during Autostop)
Many systems will not function in this
situation (e.g. brake servo unit, power steering). Driving in this manner is a
danger to yourself and others. All
systems function during an Autostop,
but there will be a controlled reduction
in power steering assist and vehicle
speed is reduced.
Stop-start system 3 140.
Idle boost
If charging of the vehicle battery is
required due to battery condition, the
power output of the generator must
be increased. This will be achieved by an idle boost which may be audible.
A message is displayed in the Driver
Information Centre.Pedals
To ensure the pedal travel is
uninhibited, there must be no mats in
the area of the pedals.
Use only floor mats which fit properly and are fixed by the retainers on the
driver's side.
Steering
If power steering assist is lost
because the engine stops or due to a system malfunction, the vehicle can
be steered but may require increased
effort.
Control indicator c 3 87.Caution
Vehicles equipped with hydraulic
power steering:
If the steering wheel is turned until it reaches the end of its travel, and
is held in that position for more
than 15 seconds, damage may
occur to the power steering
system and there may be loss of
power steering assist.
Starting and operating
New vehicle running-in
Do not brake unnecessarily hard for
the first few journeys.
During the first drive, smoke may
occur because of wax and oil
evaporating off the exhaust system.
Park the vehicle in the open for a
while after the first drive and avoid
inhaling the fumes.
During the running-in period fuel and engine oil consumption may be
higher and the cleaning process of the diesel particle filter may take
place more often. Autostop may be
inhibited to allow for charging the
battery.
Diesel particle filter 3 144.

144Driving and operatingDiesel particle filterAutomatic cleaning process
The diesel particle 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 cleaning
Under certain 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
indicated by illumination of % and a
warning message in the Driver
Information Centre.
% illuminates along with a warning
message when diesel particle filter is
full. Start cleaning process as soon as
possible.
% flashes along with a warning
message when diesel particle filter
has reached the maximum filling
level. Start cleaning process
immediately to avoid damage to the
engine.
Activate self-cleaning process
To activate cleaning process,
continue driving, keep engine speed
above 2000 rpm. Shift down if
necessary. Diesel particle filter
cleaning is then started.
Cleaning process is completed more
quickly 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.

186Driving and operatingThe system can not operate when no
lane marking is detected.Fuel
Fuel for petrol engines Only use unleaded fuel that complies
with European standard EN 228 or
equivalent.
The engine is capable of running with
fuel that contains up to 10% ethanol
(e.g. named E10).
Use fuel with the recommended
octane rating. A lower octane rating
can reduce engine power and torque
and slightly increases fuel
consumption.Caution
Do not use fuel or fuel additives
that contain metallic compounds
such as manganese-based
additives. This may cause engine
damage.
Caution
Use of fuel that does not comply to EN 228 or equivalent can lead to
deposits or engine damage.
Caution
Use of fuel with a lower octane
rating than the lowest possible
rating could lead to uncontrolled combustion and engine damage.
The engine specific requirements
regarding octane rating are given in
the engine data overview 3 260. A
country specific label at the fuel filler
flap can supersede the requirement.
Fuel additives outside Europe
Fuel should contain detergent
additives that help prevent engine
and fuel system deposits from
forming. Clean fuel injectors and
intake valves will allow the emission
control system to work properly.