Replacing brake fluid
Warning: Old brake fluid is darker in color than new.
The procedure for replacing brake fluid is similar to the procedure for bleeding the brakes, except that the brake fluid reservoir must be emptied of old brake fluid.
1. Open the first bleed nipple and pump the brake pedal until the old brake fluid comes out of the master brake cylinder. Add brake fluid to the max mark in the reservoir and bleed again until new brake fluid appears in the bleed nipple, then screw in the bleed nipple. Bleed the brake circuits of the remaining wheels in the same way.
2. When bleeding, do not allow the brake fluid level in the reservoir to drop below the min mark. Otherwise, air may enter the hydraulic brake system.
3. Check that the bleeder nipples are tightly tightened, install dust caps on them and wipe off any traces of brake fluid.
4. Check the operation of the braking system while driving the vehicle at low speed.
Replacing the battery in the remote control
Warning! The battery in the remote control must be replaced within 3 minutes, otherwise the remote control system will need to be reprogrammed.
1. Using a screwdriver, remove the battery cover from the remote control.
2. Mark the polarity of the battery installation and remove it from the remote control.
3. Install a new battery and close the battery cover.
Replacing the coolant
Warning! Replace the coolant on a cold engine. Avoid contact with coolant on painted surfaces of the body and clothing. Otherwise, rinse the area where the coolant has come into contact with plenty of water.
Draining the coolant
1. Remove the cap from the expansion tank.
2. Remove the splash guard under the engine compartment and place the container under the radiator on the left side.
3. Loosen the clamp and remove the hose from the base of the radiator and drain the coolant into a container.
4. After draining the coolant, install the hose onto the radiator and secure it with a clamp.
Flushing the cooling system
5. The coolant must be changed periodically, and the cooling system must be flushed, as rust and dirt form in the system channels. The radiator must be flushed independently of the engine.
Radiator flushing
6. Disconnect the hoses from the radiator.
7. Insert the hose into the inlet of the upper radiator tank, turn on the water and flush the radiator until clean water appears from the lower radiator tank.
8. If you cannot flush the radiator with clean water, use a detergent.
Engine flush
9. Remove the thermostat and disconnect the hoses from the radiator.
10. Install the thermostat and connect the cooling system hoses.
Source is on this resource [opelbook.ru]
Filling the cooling system
11. Before filling the cooling system, check that all hoses inside are in good condition. Note that the antifreeze mixture should be used all year round to prevent corrosion.
12. Remove the cap from the expansion tank.
13. On SOCH 1.6L engines, remove the coolant temperature sensor from the top of the thermostat housing. This is necessary to bleed air from the cooling system. On other engines, air is bled from the cooling system automatically when the engine warms up.
14. Slowly pour in coolant until the level reaches the max mark on the expansion tank. On SOCH 1.6L engines, install the temperature sensor after clean, bubble-free coolant appears from the sensor hole.
15. Install the expansion tank cap.
16. Start the engine and warm it up to operating temperature.
17. Stop the engine and let it cool, then check the coolant level.
Antifreeze
Antifreeze is a mixture of distilled water and ethylene glycol concentrate. Antifreeze provides protection for the cooling system from corrosion and increases the boiling point of the coolant. The amount of ethylene glycol in antifreeze depends on the weather conditions of the car and ranges from 40 to 70%.
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