Opel Astra GTC (2018 year). Instruction — part 15
230
Vehicle care
Tyre pressure 3 271.
The tyre pressure information label
on the front left or right door frame
indicates the original equipment tyres
and the correspondent tyre
pressures.
The tyre pressure data refers to cold
tyres. It applies to summer and winter
tyres.
Always inflate the spare tyre to the
pressure specified for full load.
The ECO tyre pressure serves to
achieve the smallest amount of fuel
consumption possible.
Incorrect tyre pressures will impair
safety, vehicle handling, comfort and
fuel economy and will increase tyre
wear.
Tyre pressures differ depending on
various options. For the correct tyre
pressure value, follow the procedure
below:
1. Identify the body style.
2. Identify the engine identifier code.
Engine data 3 262.
3. Identify the respective tyre.
The tyre pressure tables show all
possible tyre combinations 3 271.
For the tyres approved for your
vehicle, refer to the EEC Certificate of
Conformity provided with your vehicle
or other national registration
documents.
The driver is responsible for correct
adjustment of tyre pressure.
9 Warning
If the pressure is too low, this can
result in considerable tyre warm-
up and internal damage, leading to
tread separation and even to tyre
blow-out at high speeds.
9 Warning
For specific tyres the
recommended tyre pressure as
shown in the tyre pressure table
may exceed the maximum tyre
pressure as indicated on the tyre.
Never exceed the maximum tyre
pressure as indicated on the tyre.
If the tyre pressure must be reduced
or increased on a vehicle with tyre
pressure monitoring system, switch
off ignition.
Temperature dependency
The tyre pressure depends on the
temperature of the tyre. During
driving, tyre temperature and
pressure increase. Tyre pressure
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231
values provided on the tyre
information label and tyre pressure
chart are valid for cold tyres, which
means at 20 °C.
The pressure increases by nearly
10 kPa for a 10 °C temperature
increase. This must be considered
when warm tyres are checked.
The tyre pressure value displayed in
the Driver Information Centre shows
the real tyre pressure. A cooled down
tyre will show a decreased value,
which does not indicate an air leak.
Tyre pressure monitoring
system
The tyre pressure monitoring system
(TPMS) checks the pressure of all
four tyres once a minute when vehicle
speed exceeds a certain limit.
Caution
Tyre pressure monitoring system
warns only about low tyre pressure
condition and does not replace
regular tyre maintenance by the
driver.
All wheels must be equipped with
pressure sensors and the tyres must
have the prescribed pressure.
Note
In countries where the tyre pressure
monitoring system is legally
required, the use of wheels without
pressure sensors will invalidate the
vehicle operating permit.
The current tyre pressures can be
shown in the Vehicle Information
Menu in the Driver Information
Centre.
The menu can be selected by the
buttons on the turn signal lever.
Press MENU to select the Vehicle
Information MenuX.
Turn the adjuster wheel to select the
tyre pressure monitoring system.
System status and pressure warnings
are displayed by a message with the
corresponding tyre flashing in the
Driver Information Centre.
The system considers the tyre
temperature for the warnings.
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Vehicle care
A detected low tyre pressure
condition is indicated by illumination
of control indicator w 3 91.
If w illuminates, stop as soon as
possible and inflate the tyres as
recommended 3 271.
If w flashes for 60-90 seconds and
then illuminates continuously, there is
a fault in the system. Consult a
workshop.
After inflating, driving may be
required to update the tyre pressure
values in the Driver Information
Centre. During this time w may
illuminate.
If w illuminates at lower temperatures
and extinguishes after some driving,
this could be an indicator for
approaching a low tyre pressure
condition. Check tyre pressure.
Vehicle messages 3 99.
If the tyre pressure must be reduced
or increased, switch off ignition.
Only mount wheels with pressure
sensors, otherwise the tyre pressure
will not be displayed and w
illuminates continuously.
A spare wheel or temporary spare
wheel is not equipped with pressure
sensors. The tyre pressure
monitoring system is not operational
for these wheels. Control indicator w
illuminates. For the further three
wheels the system remains
operational.
The use of commercially available
liquid tyre repair kits can impair the
function of the system. Factory-
approved repair kits can be used.
Operating electronic devices or being
close to facilities using similar wave
frequencies could disrupt the tyre
pressure monitoring system.
Each time the tyres are replaced, tyre
pressure monitoring system sensors
must be dismounted and serviced.
For the screwed sensor: replace
valve core and sealing ring. For
clipped sensor: replace complete
valve stem.
Vehicle loading status
Adjust tyre pressure to load condition
according to the tyre information label
or tyre pressure chart 3 271, and
select the appropriate setting in the
Tyre load menu in the Driver
Information Centre 3 93. This setting
is the reference for the tyre pressure
warnings.
The Tyre Load menu only appears if
the vehicle is in a standstill and the
parking brake is applied. On vehicles
with automatic transmission, the
selector lever must be in P.
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233
Select:
● Light for comfort pressure up to
3 people.
● Eco for Eco pressure up to
3 people.
● Max for full load.
Tyre pressure sensor matching
process
Each tyre pressure sensor has a
unique identification code. The
identification code must be matched
to a new wheel position after rotating
the wheels or exchanging the
complete wheel set and if one or more
tyre pressure sensors were replaced.
The tyre pressure sensor matching
process should also be performed
after replacing a spare wheel with a
road wheel containing the tyre
pressure sensor.
The malfunction light w and the
warning message or code should
extinguish at the next ignition cycle.
The sensors are matched to the
wheel positions using a relearn tool,
in the following order: left side front
wheel, right side front wheel, right
side rear wheel and left side rear
wheel. The turn signal light at the
current active position is illuminated
until the sensor is matched.
Consult a workshop for service. There
are two minutes to match the first
wheel position, and five minutes
overall to match all four wheel
positions. If it takes longer, the
matching process stops and must be
restarted.
The tyre pressure sensor matching
process is:
1. Apply the parking brake.
2. Turn the ignition on.
3. On vehicles with automatic
transmission: set the selector
lever to P.
On vehicles with instruction
transmission: select neutral.
4. Use MENU on the turn signal
lever to select the Vehicle
Information Menu in the Driver
Information Centre.
5. Turn the adjuster wheel to scroll to
the tyre pressure menu.
6. Press SET/CLR to begin the
sensor matching process. A
message requesting acceptance
of the process should be
displayed.
Press SET/CLR again to confirm
the selection. The horn sounds
twice to indicate the receiver is in
relearn mode.
7. Start with the left side front wheel.
8. Place the relearn tool against the
tyre sidewall, near the valve stem.
Then press the button to activate
the tyre pressure sensor. A horn
chirp confirms that the sensor
identification code has been
matched to this wheel position.
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Vehicle care
9. Proceed to the right side front
wheel, and repeat the procedure
in Step 8.
10. Proceed to the right side rear
wheel, and repeat the procedure
in Step 8.
11. Proceed to the left side rear
wheel, and repeat the procedure
in Step 8. The horn sounds twice
to indicate the sensor
identification code has been
matched to the left side rear tyre,
and the tyre pressure sensor
matching process is no longer
active.
12. Turn off the ignition.
13. Set all four tyres to the
recommended air pressure level
as indicated on the tyre pressure
label.
14. Ensure the tyre loading status is
set according to the selected
Tread depth
Check tread depth at regular
intervals.
Tyres should be replaced for safety
reasons at a tread depth of 2-3 mm
(4 mm for winter tyres).
For safety reasons it is recommended
that the tread depth of the tyres on
one axle should not vary by more than
2 mm.
The legally permissible minimum
tread depth (1.6 mm) has been
reached when the tread has worn
down as far as one of the tread wear
indicators (TWI). Their position is
indicated by markings on the
sidewall.
If there is more wear at the front than
the rear, swap round front wheels and
rear wheels periodically. Ensure that
the direction of rotation of the wheels
is the same as before.
Tyres age, even if they are not used.
We recommend tyre replacement
every 6 years.
Changing tyre and wheel
size
If tyres of a different size than those
fitted at the factory are used, it may be
necessary to reprogramme the
speedometer as well as the nominal
tyre pressure and make other vehicle
modifications.
After converting to a different tyre
size, have the label with tyre
9 Warning
The use of unsuitable tyres or
wheels may lead to accidents and
will invalidate the vehicle
operating permit.
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235
Wheel covers
Wheel covers and tyres that are
factory approved for the respective
vehicle and comply with all of the
relevant wheel and tyre combination
requirements must be used.
If the wheel covers and tyres used are
not factory approved, the tyres must
not have a rim protection ridge.
Wheel covers must not impair brake
cooling.
9 Warning
Use of unsuitable tyres or wheel
covers could lead to sudden
pressure loss and thereby
accidents.
Vehicles with steel wheels: When
using locking wheel nuts, do not
attach wheel covers.
Tyre chains
Use tyre chains only on front wheels.
9 Warning
Damage may lead to tyre blowout.
4-door notchback
Always use fine mesh chains that add
no more than 10 mm to the tyre tread
and the inboard sides (including chain
lock).
Tyre chains are only permitted on
tyres of size 205/60 R16 and
215/50 R17.
3-door hatchback
Tyre chains are permitted on tyres of
size 225/55 R17. Always use fine
mesh chains that add no more than
10 mm to the tyre tread and the
inboard sides (including chain lock).
Tyre chains are also permitted on
tyres of size 245/45 R18. Always use
fine mesh chains that add no more
than 7 mm to the tyre tread and the
inboard sides (including chain lock).
OPC Version
Tyre chains are permitted on tyres of
size 235/45 R18. Always use fine
mesh chains that add no more than
10 mm to the tyre tread and the
inboard sides (including chain lock).
General
The use of tyre chains is not permitted
on the temporary spare wheel.
Tyre repair kit
Minor damage to the tyre tread can be
repaired with the tyre repair kit.
Do not remove foreign bodies from
the tyres.
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Vehicle care
Tyre damage exceeding 4 mm or that
is at the tyre's sidewall cannot be
repaired with the tyre repair kit.
9 Warning
Do not drive faster than 80 km/h.
Do not use for a lengthy period.
Steering and handling may be
affected.
If you have a flat tyre:
Apply the parking brake and engage
first gear, reverse gear or P.
The tyre repair kit is in a compartment
under the floor cover in the load
compartment.
The illustrations show different
versions.
1. Take the tyre repair kit from the
compartment.
2. Remove the compressor.
3. Remove the electrical connection
cable and air hose from the
stowage compartments on the
underside of the compressor.
4. Screw the compressor air hose to
the connection on the sealant
bottle.
5. Fit the sealant bottle into the
retainer on the compressor.
Set the compressor near the tyre
in such a way that the sealant
bottle is upright.
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237
6. Unscrew valve cap from defective
tyre.
7. Screw the filler hose to the tyre
valve.
8. The switch on the compressor
must be set to J.
9. Connect the compressor plug to
the power outlet or cigarette
lighter socket.
To avoid discharging the battery,
we recommend running the
engine.
10. Set the rocker switch on the
compressor to I. The tyre is filled
with sealant.
11. The compressor pressure gauge
briefly indicates up to 6 bar whilst
the sealant bottle is emptying
(approx. 30 seconds). Then the
pressure starts to drop.
12. All of the sealant is pumped into
the tyre. Then the tyre is inflated.
13. The prescribed tyre pressure
should be obtained within ten
minutes. Tyre pressure 3 271.
When the correct pressure is
obtained, switch off the
compressor.
If the prescribed tyre pressure is
not obtained within ten minutes,
remove the tyre repair kit. Move
the vehicle one tyre rotation.
Reattach the tyre repair kit and
continue the filling procedure for
ten minutes. If the prescribed tyre
pressure is still not obtained, the
tyre is too badly damaged. Seek
the assistance of a workshop.
Drain excess tyre pressure with
the button over the pressure
indicator.
Do not run the compressor longer
than ten minutes.
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Vehicle care
14. Detach the tyre repair kit. Push
catch on bracket to remove
sealant bottle from bracket. Screw
the tyre inflation hose to the free
connection of the sealant bottle.
This prevents sealant from
escaping. Stow tyre repair kit in
load compartment.
15. Remove any excess sealant
using a cloth.
16. Take the label indicating
maximum permitted speed from
the sealant bottle and affix in the
driver's field of view.
17. Continue driving immediately so
that sealant is evenly distributed
in the tyre. After driving approx.
10 km (but no more than ten
minutes), stop and check tyre
pressure. Screw compressor air
hose directly onto tyre valve and
compressor when doing this.
If tyre pressure is more than
1.3 bar, set it to the correct value.
Repeat the procedure until there
is no more loss of pressure.
If the tyre pressure has fallen
below 1.3 bar, the vehicle must
not be used. Seek the assistance
of a workshop.
18. Stow away tyre repair kit in load
compartment.
Note
The driving characteristics of the
repaired tyre are severely affected,
therefore have this tyre replaced.
If unusual noise is heard or the
compressor becomes hot, turn
compressor off for at least
30 minutes.
The built-in safety valve opens at a
pressure of 7 bar.
Note the expiry date of the kit. After
this date its sealing capability is no
longer guaranteed. Pay attention to
storage information on sealant
bottle.
Replace the used sealant bottle.
Dispose of the bottle as prescribed
by applicable laws.
The compressor and sealant can be
used from approx. -30 °C.
The adapters supplied can be used
to pump up other items e.g.
footballs, air mattresses, inflatable
dinghies etc. They are located on the
underside of the compressor. To
remove, screw on compressor air
hose and withdraw adapter.
Wheel changing
Some vehicles are equipped with a
tyre repair kit instead of a spare wheel
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239
Make the following preparations and
observe the following information:
● Park the vehicle on a level, firm
and non-skid surface. The front
wheels must be in the straight-
ahead position.
● Apply the parking brake and
engage first gear, reverse gear or
P.
● Remove the spare wheel 3 242.
● Never change more than one
wheel at once.
● Use the jack only to change
wheels in case of puncture, not
for seasonal winter or summer
tyre change.
● The jack is maintenance-free.
● If the ground on which the vehicle
is standing is soft, a solid board
(max. 1 cm thick) should be
placed under the jack.
● Take heavy objects out of the
vehicle before jacking up.
● No people or animals may be in
the vehicle when it is jacked-up.
● Never crawl under a jacked-up
vehicle.
● Do not start the vehicle when it is
raised on the jack.
● Clean wheel nuts and thread with
a clean cloth before mounting the
wheel.
9 Warning
Do not grease wheel bolt, wheel
nut and wheel nut cone.
1. Disengage wheel nut caps with a
screwdriver and remove. Pull off
the wheel cover. Vehicle tools
Alloy wheels: Disengage wheel
nut caps with a screwdriver and
remove. To protect the wheel,
place a soft cloth between the
screwdriver and the alloy wheel.
Alloy wheels with centre wheel
bolt cap: Disengage centre cap by
inserting and pulling the extractor
in the recess of the brand
emblem. Vehicle tools 3 227.
2. Two types of jacks and wheel nut
wrenches are possible depending
on the version. Vehicle tools
Variant 1a with rigid wheel
wrench:
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Vehicle care
Install the wheel wrench ensuring
that it locates securely and loosen
each wheel nut by half a turn.
Variants 1b, 2 and 3 with foldable
wheel wrench:
Fold out the wheel wrench and
install ensuring that it locates
securely and loosen each wheel
nut by half a turn.
The wheels might be protected by
locking wheel nuts. To loosen
these specific nuts first attach the
adapter onto the head of the nut
before installing the wheel
wrench. The adapter is located in
the glovebox.
3. Ensure the jack is correctly
positioned under the relevant
vehicle jacking point.
Some versions have sill
panellings with covered vehicle
jacking points: pull out the cover
at the respective jacking point
firstly.
4. 3-door hatchback and 4-door
notchback, jack variants 1a, 1b
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241
Set the jack to the necessary
height. Position it directly below
the jacking point in a manner that
prevents it from slipping.
Attach jack handle and with the
jack correctly aligned rotate
handle until wheel is clear of the
ground.
5. Unscrew the wheel nuts.
6. Change the wheel. Spare wheel
7. Screw on the wheel nuts.
8. Lower the vehicle and remove
jack.
9. Install the wheel wrench ensuring
that it is located securely and
tighten each nut in a crosswise
sequence. Tightening torque is
140 Nm.
10. Align the valve hole in the wheel
cover with the tyre valve before
installing.
Install wheel nut caps.
Install centre cap on alloy wheels.
11. Install vehicle jacking point cover
on versions with sill panelling.
12. Stow the replaced wheel 3 242,
the vehicle tools 3 227 and the
adapter for the locking wheel nuts
13. Check the tyre pressure of the
installed tyre and the wheel nut
torque as soon as possible.
Have the defective tyre renewed or
repaired as soon as possible.
Jacking position for lifting platform
Rear arm position of the lifting
platform centrically under the recess
of the sill.
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Vehicle care
Front arm position of the lifting
platform at the underbody.
Spare wheel
Some vehicles are equipped with a
tyre repair kit instead of a spare
wheel.
If mounting a spare wheel, which is
different from the other wheels, this
wheel might be classified as a
temporary spare wheel and the
corresponding speed limits apply,
even though no label indicates this.
Seek the assistance of a workshop to
check the applicable speed limit.
The spare wheel has always a steel
rim.
Caution
The use of a spare wheel that is
smaller than the other wheels or in
combination with winter tyres
could affect driveability. Have the
defective tyre replaced as soon as
possible.
The spare wheel is located in the load
compartment beneath the floor
covering. It is secured with a wing nut.
To remove:
1. Open the floor cover.
2. Only 3-door hatchback: remove
rear storage by pressing both
buttons. Fold down cover and
extract storage upwards.
3. The spare wheel is secured with a
wing nut. Loosen nut, remove
conus (only 3-door hatchback) to
take out the spare wheel.
Under the spare wheel there is the
box with vehicle tools.
4. When, after a wheel change, no
wheel is placed in the spare wheel
well, secure the tool box by
tightening the wing nut and close
the floor cover.
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Stowing a damaged full size
wheel in the load compartment,
3-door hatchback
The spare wheel well is not designed
for other tyre sizes than the spare
wheel. A damaged full size wheel
must be stowed in the load
compartment and secured with a
strap. Vehicle tools 3 227. To secure
the wheel:
1. Position the wheel facing
upwards, close to one sidewall of
the load compartment.
2. Place the loop end of the strap
through the front lashing eye on
the appropriate side.
3. Place the hook end of the strap
through the loop and pull it until
the strap is fastened securely to
the lashing eye.
4. Insert the strap through the
spokes of the wheel as shown in
the illustration.
5. Mount the hook to the rear lashing
eye.
6. Tighten the strap and secure it
using the buckle.
9 Danger
Always drive with folded up and
engaged rear seat backrests when
stowing a damaged full size wheel
in the load compartment.
Stowing a damaged full size
wheel in the spare wheel well,
4-door notchback
Vehicles equipped with a full size
spare wheel:
A damaged full size wheel must be
stowed outside up in the spare wheel
well secured with the wing nut.
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Vehicle care
The floor cover can be placed on the
projecting wheel.
Vehicles equipped with a temporary
spare wheel:
Secure a damaged full size wheel
facing upwards with the wing nut in
the spare wheel well after exchanging
the thread bolt by an extension bolt,
placed in the tool bag 3 227. To
replace the bolt:
1. Install the hexagon key of the
wheel wrench ensuring that it
locates securely on the bolt.
2. Turn the wheel wrench
anticlockwise to loosen the bolt.
Remove the bolt.
3. Take the extension bolt from the
tool bag 3 227 and screw it in
hand-tight using the hexagon key
of the wheel wrench.
4. Store the tool box and the
damaged wheel with the side
facing upwards, in the spare
wheel well and secure it by turning
the wing nut clockwise on the bolt.
The floor cover can be placed on the
projecting wheel.
Replace the extension bolt with the
short bolt before placing the
temporary spare wheel in the well
after renewing or repairing the
defective wheel.
Stowing the spare wheel back in
the well after replacing the
damaged wheel
1. Open the floor cover, loosen and
remove wing nut.
Only 3-door hatchback: open floor
cover, remove rear storage,
loosen and remove wing nut and
conus.
2. Only 4-door notchback with
temporary spare wheel: replace
the extension bolt with the short
bolt by using the hexagon key of
the wheel wrench.
3. Place the tools in the tool box or
4. Place spare wheel facing
upwards, in the wheel well and
secure by tightening the wing nut.
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245
Only 3-door hatchback: position
the excentric conus in the recess
of the spare wheel before
tightening the wing nut.
5. Close floor cover and insert rear
storage (only 3-door hatchback).
9 Warning
Storing a jack, a wheel or other
equipment in the load
compartment could cause injury if
they are not secured properly.
During a sudden stop or a
collision, loose equipment could
strike someone.
Always store jack and tools in the
respective storage compartments
and secure them by fixing.
Damaged wheel placed in the load
compartment must always be
secured with the strap.
Temporary spare wheel
Caution
The use of a spare wheel that is
smaller than the other wheels or in
combination with winter tyres
could affect driveability. Have the
defective tyre replaced as soon as
possible.
Only mount one temporary spare
wheel. Do not drive faster than
80 km/h. Take curves slowly. Do not
use for a long period of time.
If your vehicle gets a flat tyre on the
rear while towing another vehicle,
mount the temporary spare wheel at
the front and the full tyre at the rear.
Tyre chains 3 235.
Spare wheel with directional tyre
Fit directional tyres such that they roll
in the direction of travel. The rolling
direction is indicated by a symbol
(e.g. an arrow) on the sidewall.
The following applies to tyres fitted
opposing the rolling direction:
● Driveability may be affected.
Have the defective tyre renewed
or repaired as soon as possible
and fit it instead of the spare
wheel.
● Drive particularly carefully on wet
and snow-covered road
surfaces.
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