2020 OPEL ASTRA K Engine belt

150Climate controlMaintenanceAir intake
The air intake in front of the
windscreen in the engine
compartment must be kept clear to
allow air intake. Remove any leaves,
dirt or snow.
Air conditioning regular
operation
In order to ensure continuously
efficient performance, cooling must
be operated for a few minutes once a
month, irrespective of the weather
and time of year. Operation with
cooling is not possible when the
outside temperature is too low.
Service For optimal cooling performance, it is recommended to annually check the
climate control system, starting
three years after initial vehicle
registration, including:
● functionality and pressure test
● heating functionality
● leakage check
● check of drive belts
● cleaning of condenser and evaporator drainage
● performance check

Driving and operating159● The driver's door is closed or thedriver's seat belt is fastened.
● The vehicle battery is sufficiently charged and in good condition.
● The engine is warmed up.
● The engine coolant temperature is not too high.
● The engine exhaust temperature is not too high, e.g. after driving
with high engine load.
● The ambient temperature is above -5 °C.
● The brake vacuum is sufficient.
● Between the last restart and a new Autostop must be about10 seconds.
● The self-cleaning function of the exhaust filter is not active.
● The vehicle was driven at least at
walking speed since the last
Autostop.
Otherwise an Autostop will be
inhibited.
The stop-start system will be
deactivated on inclines of 12% or
more.Certain settings of the climate control
system may inhibit an Autostop. See
Climate control chapter for more
details 3 141.
Immediately after motorway driving
an Autostop may be inhibited.
New vehicle running-in 3 152.
Vehicle battery discharge protection
To ensure reliable engine restarts,
several vehicle battery discharge
protection features are implemented
as part of the stop-start system.
Power saving measures
During an Autostop, several electrical
features e.g. auxiliary electric heater
or heated rear window are disabled or switched to a power saving mode.
The fan speed of the climate control
system is reduced to save power.
Restart of the engine by the driverVehicles with manual transmission
Depending on the engine, two
versions of a restart are available.
See engine data to identify the engine
identifier code for your vehicle
3 280.Conventional restart
Depress the clutch pedal to restart the
engine. For engines with late restart,
this is only possible without
depressing the brake pedal.
Late restart ● Depress the brake pedal.
● Depress the clutch pedal.
● Select first gear.
● Release the brake pedal to restart the engine.Vehicles with automatic transmission:Release the brake pedal or move
selector lever out of D into N or P to
restart the engine.
Restart of the engine by the stop-
start system
On vehicles with manual transmission
which are in a conventional Autostop,
the selector lever must be in neutral
to enable an automatic restart.
On vehicles with manual transmission
which are in an early Autostop, an
automatic restart is possible, when
not in neutral if the brake pedal and
the clutch pedal are depressed.

160Driving and operatingOn vehicles with automatic
transmission, the selector lever must
be in D to enable an automatic restart.
The engine will be restarted
automatically by the stop-start
system, if one of the following
conditions occurs during an Autostop:
● The stop-start system is manually deactivated.
● The bonnet is opened.
● The driver's seat belt is unfastened and / or the driver's
door is opened.
● The engine temperature is too low.
● The charging level of the vehicle battery is below a defined level.
● The brake vacuum is not sufficient.
● The vehicle is driven at least at walking speed.
● The climate control system requests an engine start.● The desired compartmenttemperature does not match theactual temperature.
● The air conditioning is manually switched on.
If the bonnet is not fully closed, a
warning message is displayed in the
Driver Information Centre.
If an electrical accessory, e.g. a
portable CD player, is connected to
the power outlet, a brief power drop
during the restart might be noticeable.
Note
If a trailer or a bike carrier is
attached, early Autostop and late
restart is deactivated.
Parking9 Warning
● Do not park the vehicle on an
easily ignitable surface. The
high temperature of the
exhaust system could ignite the
surface.
● Always apply the parking brake. Activate the manual
parking brake without pressingthe release button. Apply as
firmly as possible on a downhill slope or uphill slope. Depress
brake pedal at the same time to
reduce operating force.
For vehicles with electric
parking brake, pull switch m for
a minimum of 1 second until
control indicator m illuminates
constantly and electric parking
brake is applied 3 110.
● Switch off the engine. ● If the vehicle is on a level surface or uphill slope, engage
first gear or set the selector
lever to position P before
removing the ignition key or
switching off ignition on
vehicles with power button. On
an uphill slope, turn the front
wheels away from the kerb.
If the vehicle is on a downhill
slope, engage reverse gear or
set the selector lever to position
P before removing the ignition
key or switching off ignition on

184Driving and operating●The vehicle is being held to a stop
by the system for more than
5 minutes.
● The vehicle stops, the driver's seat belt is unbuckled and the
driver's door is opened.
When adaptive cruise control is
deactivated, the control indicator C
changes from green to white and a
pop-up message is displayed in the
Driver Information Centre.
The stored speed is maintained.
On Midlevel display, the stored speed is indicated in brackets in the Driver
Information Centre when the system
is deactivated but not switched off.
On Uplevel display, the adaptive
cruise control symbol C changes
from green to white when the system
is deactivated but not switched off.
9 Warning
When adaptive cruise control is
deactivated, the driver must take
over full brake and engine control
immediately.
Switching off the system
Press v to switch off adaptive cruise
control. The control indicator C
extinguishes in the Driver Information Centre. The stored speed is deleted.
Switching off the ignition also
switches off adaptive cruise control
and deletes the stored speed.
Driver's attention ● Use adaptive cruise control carefully on bends or mountain
roads, as it can lose the vehicle
ahead and needs time to detect it again.
● Do not use the system on slippery roads as it can create
rapid changes in tyre traction
(wheel spinning), so that you
could lose control of the vehicle.
● Do not use adaptive cruise control during rain, snow or
heavy dirt, as the radar sensor
can be covered by a water film,
dust, ice or snow. This reduces or suppresses completely the
visibility. In case of sensor
blockage, clean the sensor
cover.
System limits9 Warning
The system's automatic brake
force does not permit hard braking and the braking level may not be
sufficient to avoid a collision.
● After a sudden lane change, the system needs a certain time to
detect the next preceding
vehicle. So if a new vehicle is
detected, the system may
accelerate instead of braking.

301QQuickheat ................................... 149
R
Radio Frequency Identification (RFID) ..................................... 297
Radio remote control ...................22
REACH ....................................... 291
Reading lights ............................ 138
Rear floor storage cover ..............82
Rear fog light .............114, 136, 233
Rear seats .................................... 57
Rear view camera ...................... 204
Rear window wiper and washer ..96
Recommended fluids and lubricants ........................ 273, 277
Refuelling ................................... 214 Registered trademarks ...............294
Retained power off .....................155
Reversing lights .........................137
Ride control systems ..................173
Roof .............................................. 46
Roof load ...................................... 90
Roof rack ..................................... 89
S Safety belts ................................... 58
Safety net .................................... 86
Seat adjustment ............................. 7 Seat belt ........................................ 8
Seat belt reminder .....................108Seat belts ..................................... 58
Seat heating Seat heating, front .....................56
Seat heating, rear .....................58
Seat position ................................ 49
Selective catalytic reduction .......163
Selector lever.............................. 167
Service ............................... 150, 272
Service display .......................... 107
Service information ....................272
Side airbag system ......................64
Side blind spot alert ....................203
Sidelights .................................... 130
Side turn lights ........................... 239
Software acknowledgement .......291
Software update ......................... 293
Spare wheel ............................... 259
Speed limiter....................... 114, 177
Speedometer ............................. 104
Starting and operating ................152
Starting off ................................... 18
Starting the engine ....................155
Steering ...................................... 152
Steering wheel adjustment ......9, 93
Steering wheel controls ...............93
Stop-start system........................ 157
Storage ......................................... 73
Storage compartments .................73
Sunroof ........................................ 46
Sun visor lights .......................... 138Sun visors .................................... 45
Symbols ......................................... 4
T
Tachometer ............................... 106
Tail lights ................................... 233
Three-point seat belt .................... 59
Tools .......................................... 247
Tow bar....................................... 216
Towing ................................ 216, 265
Towing another vehicle .............266
Towing equipment .....................218
Towing the vehicle .....................265
Traction Control system ............. 173
Traction Control system off......... 112
Traffic sign assistant ...........115, 206
Trailer coupling ........................... 216
Trailer stability assist .................221
Trailer towing ............................. 217
Transmission ............................... 17
Transmission display .................166
Tread depth ............................... 253
Trip odometer ............................ 105
Turn lights .......................... 108, 136
Tyre chains ................................ 255
Tyre designations ......................249
Tyre pressure ............................ 249
Tyre pressure monitoring system ............................. 112, 251