2020 OPEL ASTRA K coolant

226Vehicle careWhen the engine oil level has
dropped to the MIN mark, top up
engine oil.
The engine oil level must not exceed
the MAX mark on the dipstick.
We recommend the use of the same
grade of engine oil that was used at
last change.Caution
Wipe off any spilled engine oil
immediately.
Caution
Overfilled engine oil must be
drained or suctioned out. If the oil
exceeds the maximum level, do
not start the vehicle and contact a
workshop.
Capacities 3 283.
Fit the cap on straight and tighten it.
Engine coolant
The factory filled coolant provides
freeze protection down to approx.
-28 °C. In cold regions with very low
temperatures, the factory filled
coolant provides frost protection
down to approx. -37 °C.Caution
Only use approved antifreeze.
Coolant and antifreeze 3 273.
Coolant level
Caution
Too low a coolant level can cause engine damage.
If the cooling system is cold, the
coolant level should be above the
filling line mark. Top up if the level is
low.
9 Warning
Allow the engine to cool before
opening the cap. Carefully open
the cap, relieving the pressure
slowly.
To top up, use a 1:1 mixture of
released coolant concentrate mixed
with clean tap water. If no coolant
concentrate is available, use clean
tap water. Install the cap tightly. Have

Vehicle care227the coolant concentration checked
and have the cause of the coolant
loss remedied by a workshop.
Washer 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.

274Service and maintenanceEngine oil viscosity grades
The SAE viscosity grade gives
information of the thickness of the oil.
Multigrade oil is indicated by two
figures, e.g. SAE 5W-30. The first
figure, followed by a W, indicates the
low temperature viscosity and the
second figure the high temperature viscosity.
Select the appropriate viscosity grade
depending on the minimum ambient
temperature 3 277.
All of the recommended viscosity
grades are suitable for high ambient
temperatures.
Coolant and antifreeze
Use only organic acid type-long life
coolant (LLC) antifreeze approved for
the vehicle. Consult a workshop.
The system is factory filled with
coolant designed for excellent
corrosion protection and frost
protection down to approx. -28 °C. In
cold regions with very low
temperatures the factory filled coolant provides frost protection down to
approx. -37 °C. This concentrationshould be maintained all year round.
The use of additional coolant
additives that intend to give additional
corrosion protection or seal against
minor leaks can cause function
problems. Liability for consequences
resulting from the use of additional coolant additives will be rejected.
Washer fluid
Use only washer fluid approved for
the vehicle to prevent damage of
wiper blades, paintwork, plastic and
rubber parts. Consult a workshop.
Brake and clutch fluidOver time, brake fluid absorbs
moisture which will reduce braking
effectiveness. The brake fluid should
therefore be replaced at the specified
interval.

299Control indicators........................ 108
Control of the vehicle .................152
Controls ........................................ 93
Convex shape .............................. 40
Coolant and antifreeze ...............273
Cruise control ....................114, 176
Cupholders .................................. 73
Curtain airbag system .................. 65
Curve lighting.............................. 134
D
Danger, Warnings and Cautions ...4
Daytime running lights ...............134
Declaration of conformity ............287
DEF ............................................ 163
Diesel exhaust fluid ....................163
Diesel fuel system bleeding .......229
Door open .................................. 115
Doors ............................................ 32
Driver assistance systems ..........176
Driver Information Centre ...........115
Driving characteristics and towing tips .............................. 217
Driving hints ................................ 152
E Electric adjustment ......................40
Electrical system......................... 241
Electric parking brake .........110, 171
Electric parking brake fault .........110
Electronic climate control system 143Electronic driving programmes ..168
Electronic key system ...................23
Electronic Stability Control.......... 174
Electronic Stability Control and Traction Control system ..........111
Electronic Stability Control off..... 111
Emergency call ........................... 129
End-of-life vehicle recovery .......223
Engine compartment fuse box ...242
Engine coolant ........................... 226
Engine coolant temperature ......112
Engine coolant temperature gauge ..................................... 106
Engine data ............................... 280
Engine exhaust .......................... 161
Engine identification ...................276
Engine oil ................... 225, 273, 277
Engine oil pressure ....................112
Entry lighting .............................. 139
Event data recorders ..................294
Exhaust filter ............................... 161
Exit lighting ................................ 139
Exterior care .............................. 267
Exterior light ............................... 113
Exterior lighting ....................13, 130
Exterior mirrors ............................. 40
F
Fault ........................................... 168
First aid kit ................................... 88Fixed air vents ........................... 149
Floor mats................................... 269
Folding mirrors ............................. 41
Following distance ......................111
Following distance indication ......189
Forward collision alert................. 187
Front airbag system .....................64
Front fog lights ...........114, 136, 232
Front pedestrian protection ........193
Front seats.................................... 49
Front storage ................................ 74
Fuel............................................. 212
Fuel for diesel engines ..............214
Fuel for petrol engines ...............212
Fuel gauge ................................. 106
Fuses ......................................... 241
G Gauges ....................................... 104
Gear selection ........................... 167
Gear shifting ............................... 111
General information ...................216
Glovebox ..................................... 73
H Halogen headlights ....................230
Hand brake ......................... 170, 171
Hazard warning flashers ............135
Headlight flash ........................... 133
Headlight range adjustment ......133
Headlights................................... 130