The picture shows the radiator of a 1.4-liter engine. You can see the cooling fins of the radiator, the space between which must be cleaned after the summer (from insects) and autumn (from foliage).
1 - engine cooling system fan; 2 - thermal switch of the engine cooling system fan; 3 - Upper radiator hose; 4 - lower radiator hose.
Radiator cleaning
The radiator is very susceptible to small foreign bodies, such as insect remains, getting between the cooling fins. A large number of foreign bodies getting into the radiator will have a negative effect on its operation. Therefore, if necessary, clean the radiator with compressed air or a stream of water in the direction from the engine outwards.
- Treat dried insect remains with a protein dissolving agent.
- After dissolving the residue, rinse the radiator in the direction from the engine outwards. Do not clean the radiator with a hard brush or sharp objects, as this may damage the radiator fins.
- It is not necessary to use special cleaning agents for internal cleaning of the radiator if the coolant contains antifreeze and anti-corrosion additives.
- Once every 5 years, remove the hoses from the radiator and engine and flush the radiator with pressurized water.
View the original on the specified resource [RENAULTBOOK.ru]