1. Drain the cooling system (see "Replacing the coolant").
2. Remove the lower instrument panel trim (see "Removal and installation the instrument panel").
3. Bend back the edge of the floor mat under the instrument panel and remove the two bolts securing the panel cross member reinforcement to the body base.
4. Remove the instrument cluster (see "Removal and installation the instrument cluster").
5. Through the window in the instrument panel that opened after removing the instrument cluster, unscrew the two nuts of the upper fastening of the instrument panel cross member reinforcement...
Note: For clarity, the work is shown with the instrument panel removed.
6. ...and remove the amplifier.
7. Unscrew the screw securing the pressure plate of the pipes supplying liquid to the heater radiator and draining it...
8. ...and disconnect the pipes from the radiator.
Notes:
- Coolant residue may leak from the pipes and radiator. Take measures to prevent it from contaminating the floor mat.
- Please note that the pipes are sealed with rubber rings. Replace any rings that are too tight, hardened or torn.
9. Unscrew the screw securing the radiator to the heater body, press one plastic radiator retainer on top and two on the sides below...
You can find the original at this link [renaultbook.ru]
10. ...then remove the radiator from the housing.
11. Install the heater radiator and all removed parts in the reverse order of removal.
12. Fill with coolant.