2017 OPEL ASTRA K brakes

Driving and operating195Active emergency braking
Active emergency braking can help to reduce the damage and injury from
crashes with vehicles and obstacles
directly ahead, when a collision can no longer be avoided either by
manual braking or by steering. Before the active emergency braking
applies, the driver is warned by the
forward collision alert 3 191.
The feature uses various inputs (e.g.
camera sensor, radar sensor, brake
pressure, vehicle speed) to calculate
the probability of a frontal collision.9 Warning
This system is not intended to
replace the driver responsibility for driving the vehicle and looking
ahead. Its function is limited to
supplemental use only to reduce
the vehicle speed before a
collision.
The system may not react for
pedestrians or animals. After a
sudden lane change, the system
needs a certain time to detect the
next preceding vehicle.
The driver shall always be ready to take action and apply the brakes
and steer to avoid collisions.
Functionality
If equipped only with front camera the active emergency braking operates in
forward gear above walking speed up to 85 km/h.
With radar sensor active emergency
braking operates in forward gear
above walking speed at all speeds.
A precondition is that forward collision
alert with front camera system is not
deactivated by pressing V on the
steering wheel 3 191or, with radar
sensor, that it is not deactivated in the
vehicle personalisation menu 3 123.
The system includes: ● brake preparation system
● emergency automatic braking
● forward looking brake assist
● intelligent brake assist (only with radar sensor)
Brake preparation system
When approaching a vehicle ahead
so quickly that a collision is likely, the brake preparation system slightlypressurizes the brakes. This reduces
the response time, when a manual or automatic braking is requested.
The brake system is prepared so that
braking can occur more rapidly.
If equipped only with front camera the system operates up to a speed of 80
km/h.
Emergency automatic braking After activation of brake preparation
system and just before the imminent
collision, this function automatically
applies limited braking to reduce the
impact speed of the collision or
prohibit a crash. Depending on the
situation, the vehicle may
automatically brake moderately or
hard. This front automatic braking can

196Driving and operatingonly occur if a vehicle ahead is
detected, indicated by the vehicle ahead indicator A 3 191.
If equipped only with front camera the
system operates up to a speed of 60
km/h.
Below a speed of 40 km/h the system can apply full braking.
Emergency automatic braking may
slow the vehicle to a complete stop to
try to avoid a potential crash. If this
happens, emergency automatic
braking may engage the electric
parking brake to hold the vehicle at a
stop. To release press the electric
parking brake button or firmly press
the accelerator pedal.9 Warning
Emergency automatic braking is
an emergency crash preparation
feature and is not designed to
avoid crashes. Do not rely on the
system to brake the vehicle.
Emergency automatic braking will
not brake outside of its operating speed range and only responds to
detected vehicles.
Forward looking brake assist
In addition to the brake preparation
system and emergency automatic
braking, the forward looking brake
assist function makes the brake assist more sensitive. Therefore, pressing
the brake pedal less strongly results
in immediate hard braking. This
function helps the driver brake
quicker and harder before the
imminent collision.
If equipped only with front camera the
system operates up to a speed of 85
km/h.9 Warning
Active emergency braking is not
designed to apply hard
autonomous braking or to
automatically avoid a collision. It is designed to reduce the vehicle
speed before a collision. It may not
react for pedestrians or animals.
After a sudden lane change, the
system needs a certain time to
detect the next preceding vehicle.
The complete attention of the
driver is always required while
driving. The driver shall always be ready to take action and apply the
brakes and steer to avoid
collisions. The system is designed to work with all occupants wearingtheir seat belts.
Intelligent Brake Assist
If the vehicle is equipped with radar
sensor Intelligent brake assist may
activate when the brake pedal is
applied quickly by providing a boost
to braking based on the speed of
approach and distance to a vehicle
ahead.
Minor brake pedal pulsations or pedal movement during this time is normal
and the brake pedal should continue to be applied as needed. Intelligent
brake assist will automatically
disengage only when the brake pedal is released.

Driving and operating1979Warning
Intelligent brake assist may
increase vehicle braking in
situations when it may not be
necessary. You could block the
flow of traffic. If this occurs, take
your foot off the brake pedal and
then apply the brakes as needed.
Deactivation
On vehicles with front camera active
emergency braking can be
deactivated by repeatedly pressing
the gap switch V to Off setting,
3 191. If deactivated a message is
displayed in the Driver Information
Centre.
On vehicles with radar sensor the
system can be disabled in the
personalisation menu in the Info-
display, 3 123.
System limitations In some cases, the active emergencybraking system may provide an
automatic braking in situations that
seem to be unnecessary, for instance
in parking garages, due to traffic signs in a curve or due to vehicles in
another lane. This is normal
operation, the vehicle does not need
service. Firmly apply the accelerator
pedal to override the automatic
braking.Emergency automatic braking may
not:
● detect a vehicle ahead on winding or hilly roads.
● detect all vehicles, especially vehicles with a trailer, tractors,
muddy vehicles, etc.
● detect a vehicle when weather limits visibility, such as in fog,rain, or snow.
To avoid malfunction keep the areas
of the camera sensor in the
windscreen and the radar sensor in
the radiator grille always clean from
dirt, dust, ice and snow.
Complete attention is always required
while driving, and you should be
ready to take action and apply the
brakes and/or steer the vehicle to
avoid crashes.
Fault
In case the system requires a service,
a message is displayed in the Driver
Information Centre.

Vehicle care223Vehicle careGeneral Information...................223
Accessories and vehicle modifications .......................... 223
Vehicle storage ........................224
End-of-life vehicle recovery .....224
Vehicle checks ........................... 225
Performing work ......................225
Bonnet ..................................... 225
Engine oil ................................. 226
Engine coolant ......................... 227
Washer fluid ............................ 228
Brakes ..................................... 228
Brake fluid ............................... 228
Vehicle battery ......................... 229
Diesel fuel system bleeding .....230
Wiper blade replacement ........231
Bulb replacement .......................231
Halogen headlights ..................231
Fog lights ................................. 233
Tail lights ................................. 234
Side turn signal lights ..............240
Number plate light ...................241
Interior lights ............................ 241
Instrument panel illumination ...241Electrical system ........................242
Fuses ....................................... 242
Engine compartment fuse box . 243
Instrument panel fuse box .......245
Load compartment fuse box ....247
Vehicle tools .............................. 249
Tools ........................................ 249
Wheels and tyres .......................250
Winter tyres ............................. 250
Tyre designations ....................250
Tyre pressure .......................... 251
Tyre pressure monitoring system .................................... 252
Tread depth ............................. 256
Changing tyre and wheel size . 256 Wheel covers ........................... 256
Tyre chains .............................. 257
Tyre repair kit .......................... 257
Wheel changing .......................260
Spare wheel ............................ 263
Jump starting ............................. 265
Towing ....................................... 267
Towing the vehicle ...................267
Towing another vehicle ...........268
Appearance care .......................269
Exterior care ............................ 269
Interior care ............................. 271General Information
Accessories and vehiclemodifications
We recommend the use of genuine
parts and accessories and factory
approved parts specific for your
vehicle type. We cannot assess or guarantee reliability of other products
- even if they have a regulatory or
otherwise granted approval.
Any modification, conversion or other
changes made to standard vehicle
specifications (including, without
limitation, software modifications,
modifications of the electronic control units) may invalidate the warranty
offered by Opel. Furthermore, such
changes may impact fuel
consumption, CO 2 emissions and
other emissions of the vehicle and
cause the vehicle to no longer
conform to the type approval,
impacting the validity of your vehicle
registration.

228Vehicle careWasher fluid
Fill with clean water mixed with a
suitable quantity of approved
windscreen washer fluid which
contains antifreeze.
Caution
Only washer fluid with a sufficient
antifreeze concentration provides
protection at low temperatures or
a sudden drop in temperature.
Washer fluid 3 273.
Brakes
In the event of minimum thickness of
the brake lining, a squealing noise
sounds during braking.
Continued driving is possible but
have the brake lining replaced as
soon as possible.
Once new brake linings are installed,
do not brake unnecessarily hard for
the first few journeys.
Brake fluid9 Warning
Brake fluid is poisonous and
corrosive. Avoid contact with eyes, skin, fabrics and painted surfaces.
The brake fluid level must be betweenthe MIN and MAX marks.
If fluid level is below MIN seek the
assistance of a workshop.
Brake and clutch fluid 3 273.

298IndexAAccessories and vehicle modifications .......................... 223
Active emergency braking ..........195
Adaptive cruise control .......113, 184
Adjustable air vents ...................153
Airbag and belt tensioners .........109
Airbag deactivation ..............63, 109
Airbag label................................... 58 Airbag system .............................. 58
Air conditioning regular operation ................................ 154
Air conditioning system .............. 146
Air intake .................................... 154
Air vents...................................... 153
Antilock brake system ................ 174
Antilock brake system (ABS) .....111
Anti-theft alarm system ................36
Anti-theft locking system .............. 36
Appearance care ........................269
Armrest ................................... 53, 55
Armrest storage ........................... 72
Ashtrays ....................................... 99
Automatic anti-dazzle ..................41
Automatic light control ...............135
Automatic locking ........................29
Automatic transmission .............167
Autostop ..................................... 161
Auxiliary heater ........................... 153B
Battery discharge protection ......144
Battery voltage ........................... 123 Belts.............................................. 56
Bonnet ....................................... 225
Brake and clutch fluid .................273
Brake and clutch system ...........110
Brake assist ............................... 177
Brake fluid .................................. 228
Brakes ............................... 174, 228
Breakdown.................................. 267
Bulb replacement ....................... 231
C Capacities .................................. 287
Cargo management system ........82
Catalytic converter .....................166
Central locking system ................24
Centre console lighting ..............143
Changing tyre and wheel size ...256
Charging system ........................ 109
Child locks ................................... 30
Child restraint installation locations ................................... 67
Child restraints.............................. 64
Child restraint systems ................64
Climate control ............................. 16
Climate control systems .............145
Clock............................................. 95
Collision damage repair ..............294