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Astra F (1991-1998, petrol) Astra G (1998-2004, petrol) Astra G (1998-2004) Astra H (2004-2009) Astra J (2009-2015, petrol)
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  • Astra J
  • General information
  • Maintenance
  • Checking the level and adding coolant

Checking the level and adding coolant (Opel Astra J)

            0

You will need: coolant, funnel, clean cloth.

Notes:
  • The manufacturer recommends using ethylene glycol-based coolant (antifreeze).
  • Do not mix liquids of different colors and different manufacturers. If you need to add coolant, but you do not know the brand of liquid poured into the system, replace all the liquid in the cooling system.
  • Use only products from proven manufacturers. Remember that using low-quality coolant leads to expensive engine repairs!
  • Before starting work, place the vehicle on a level surface.


Attention!
  • Check the coolant level only when the engine is cold.
  • Coolant is toxic, so take precautions when handling it.
  • Do not fill the reservoir much higher than the "KALT/COLD" mark, as its volume will increase when the engine is running.
  • When starting the engine, the expansion tank cap must be tightly closed.


Helpful tips:
  • Constantly monitor the coolant level. A sharp decrease or increase should be a signal for an immediate check of the engine cooling system.
  • If the freshly poured antifreeze suddenly and unexpectedly quickly changed color to brown, it means you were sold a fake, to which they "forgot" to add corrosion inhibitors. Replace the liquid as quickly as possible before it has time to corrode the cooling system.


If the freshly poured antifreeze suddenly and unexpectedly quickly changed color to brown, it means…


The expansion tank is installed in the engine compartment on the left side.



The expansion tank is installed in the engine compartment on the left side.


1. The coolant level when the engine is cold should be slightly above the "KALT/COLD" mark on the wall of the expansion tank.

1. The coolant level when the engine is cold should be slightly above the «KALT/COLD» mark on the…


2. To add fluid, unscrew the expansion tank cap…

2. To add fluid, unscrew the expansion tank cap…


3. …and add coolant to the required level.

3. …and add coolant to the required level.


4. Screw on the expansion tank cap.

Caution! Tighten the expansion tank cap tightly. When the engine is running, the expansion tank is under pressure, so coolant may leak from under a loosely tightened cap or the cap may be torn off.


This article is available at russian, bulgarian, belarusian, ukrainian, serbian, croatian, romanian, polish, slovak, hungarian
Checking the article: Trifonova Emilia

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Opel Astra J: Maintenance
Next articles

Checking the level and adding oil to the lubrication system
Checking wheels and tires
Safety rules for maintenance
Maintenance schedule
Checking and topping up brake fluid in the brake and clutch reservoir
Checking the level and adding fluid to the washer reservoir
Checking external lighting fixtures


See similar ones from other Opel car manuals:
▶ Checking the coolant level Opel Vectra A (1988-1995)
▶ Checking the coolant level Opel Zafira A (1999-2005, petrol)
▶ Checking the K/L for low brake fluid level Opel Corsa B (1993-2000)
▶ Checking the oil level in the rear main gear of the… Opel Insignia A (2008-2017)
▶ Checking and adjusting the fuel level in the float chamber Opel Kadett D (1979-1984)
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Astra J (2009-2015, petrol) 
  • General information
  • Vehicle device
  • User manual
  • Faults en route
  • Maintenance
  • Power unit
  • Engine repair
  • Cooling and lubrication system
  • Engine power system
  • Exhaust system
  • Transmission
  • Clutch
  • Car gearbox
  • Drive shafts
  • Chassis
  • Front suspension
  • Rear suspension
  • Steering
  • Brake system
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  • Body
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  • Interior
  • Doors and windows
  • Body Care
  • Heating and air conditioning
  • Security systems
  • Electrical equipment
  • Equipment and devices
  • Lighting and signaling
  • Power devices
  • Electrical circuits
Astra H (2004-2009) 
  • General information
  • Introduction to the guide
  • Troubleshooting
  • User manual
  • Maintenance
  • Power unit
  • Engine repair
  • Cooling and heating
  • Power and exhaust system
  • Ignition system
  • Launch and charge system
  • Transmission
  • Mechanical gearbox
  • Automatic gearbox
  • Drive shafts
  • Chassis
  • Brake system
  • Car suspension
  • Steering
  • Body
  • Interior
  • Exterior
  • Electrical equipment
  • Equipment and devices
  • Electrical circuits
Astra G (1998-2004) 
  • General information
  • Introduction to manual
  • User manual
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  • Power unit
  • SOHC gasoline engines
  • DOHC gasoline engines
  • Diesel engines 1.7 and 2.0
  • Engine repair
  • Cooling system
  • Supply system
  • Injection system (gasoline)
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  • Charge and launch system
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  • Manual gearbox
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  • Wheel suspension
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  • Doors and windows
  • Ventilation and heating
  • Electrical equipment
  • Equipment and devices
  • Electrical circuits
Astra G (1998-2004, petrol) 
  • General information
  • User manual
  • Car care
  • Maintenance
  • Power unit
  • Single shaft engines
  • Twin shaft engines
  • Engine repair
  • Cooling and heating
  • Fuel and exhaust systems
  • Starting and charging system
  • Ignition system
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  • Equipment and devices
  • Wiring diagrams Opel Astra
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Astra F (1991-1998, petrol) 
  • General information
  • Maintenance
  • Power unit
  • Engine in car
  • Engine removed
  • Cooling system
  • Heating and ventilation
  • Fuel supply (carburetor)
  • Fuel supply (injector)
  • Emission control
  • Ignition system
  • Transmission
  • Clutch
  • Mechanical gearbox
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  • Drive shafts
  • Chassis
  • Brake system
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  • Equipment and devices
  • Electrical circuits
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