Opel Astra GTC (2018 year). Manual - 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 manual

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

pressure 3 93.

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

pressures replaced.3 231

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

3

 235.

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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

3

 227.

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

3

 227.

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

and 3 3 227:

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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

3

 242.

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

3

 60.

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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243

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

the tool bag 3 227.

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.