Attention:
When working in the engine compartment, precautions must be taken to avoid injury, as the engine cooling fan may start unexpectedly.
To avoid severe burns when the engine is hot, the following rules must be observed:
- do not open the cap of the expansion tank,
- do not drain fluid from the engine cooling system,
- do not open the vent caps.
Note: When working, you must be prepared for the leakage of liquid, so you need to prepare a drip tray to collect liquid and cover the surrounding components.
Attention:
- Do not use ordinary water for the engine cooling system. Normal operation of the engine is ensured only when coolant is used.
- If coolant is leaking through the expansion tank cap, replace the tank cap steam valve.
Coolant drain
1. Place the vehicle on a two post lift.
2. Remove the cap from the expansion tank.
3. Unscrew the fastening bolts and remove the engine protective tray.
4. Remove the front bumper from the car.
5. Place a coolant drip tray under the vehicle.
6. Remove the clamp of the lower radiator hose using special pliers (Mot. 1202-01), (Mot 1202-02) or (Mot. 1448).
7. Open the cooling circuit by disconnecting the lower radiator hose using trim removal tools (Car. 1363).
8. By supplying compressed air to the cooling system through the opening of the expansion tank, remove as much coolant as possible.
Cleaning the cooling system
1. Supply water to the cooling system through the expansion tank.
2. Wait until the water flowing out through the lower radiator hose is clean.
3. By supplying compressed air to the cooling system through the opening of the expansion tank, remove as much water as possible from the cooling system.
4. Connect the lower radiator hose.
Filling the cooling system
Note:
There are two ways to charge the engine cooling system:
Using fixture (Mot. 1700), recommended by Renault. It gives a significant gain in time, since it does not require opening plugs to remove air. Method without the help of a special device.
Refueling using a tool (Mot. 1700)
Fill the engine cooling system with the manufacturer's recommended fluid using the tool (Mot. 1700).
Filling without using a special tool
Attention:
- Be sure to remove all drain bolts to remove as much air as possible from the cooling system.
- Failure to do so may result in incomplete filling of the cooling system and cause engine damage.
1. Open all vents.
2. Air outlet for the version with the K9K engine.
3. Air outlet, versions with K9K engine.
4. Air bleeder, versions with D4F engine.
5. Bleeding port, versions with D4F engine
8. Air outlet, versions with K4M engine
2. Fill the engine cooling system with liquid recommended by the manufacturer, pouring it into the expansion tank up to the top edge of the filler neck.
3. Close all bleeder fittings as soon as liquid begins to flow out in a continuous stream.
4. Pressurize the system with the tool (Ms. 554-07) to check for leaks.
5. Install the expansion tank cap.
6. Clean surfaces that have been exposed to coolant.
Caution: Do not open the bleed valve while the engine is running, to prevent damage to the engine.
7. Start the engine.
Versions with petrol engines
8. Run the engine at 2500 rpm until the engine cooling fan comes on a third time (time required for automatic venting).
Versions with diesel engine
9. Maintain the engine speed at 1500 rpm, sharply increasing the speed to the maximum 2 - 3 times approximately every 2 minutes, until the engine cooling fan turns on a second time.
10. Check the operation of the heater.
11. Allow the engine to cool down to coolant temperature below 50°C.
12. Bring the coolant level to the mark «Maximum».
13. Install the expansion tank cap.
14. To remove the pallet for collecting of a cooling liquid from under the car.
16.Install the engine undertray.