Before draining your coolant, simply add MOTUL RADIATOR CLEAN to the cooling system. Set all heater controls to the hot position and let the engine idle for about 30 minutes. Then, drain the system thoroughly and flush it with clean water. Finally, refill the cooling system with new coolant as per the manufacturer's instructions. This 300 - ml additive is ideal for 10 - L cooling systems. Note: Open the radiator filling cap slowly due to system pressure and risk of burning. Don't exceed the recommended proportion. If needed, you can do 2 successive treatments. Keep your engine cool and running smoothly with this effective radiator cleaner.

To use this Motul radiator cleaner additive, first, before you drain the coolant, pour it into the cooling system. Make sure to set your heater controls to the hot setting and let the engine run at idle for around 30 minutes. After that, completely drain the system and rinse it well with clean water. Then, refill the cooling system with new coolant following the manufacturer's advice. The 300 - ml size is suitable for 10 - L cooling systems. When opening the radiator filling cap, do it slowly because the system is under pressure and there's a risk of getting burned. Also, don't use more than the recommended amount. If the first treatment isn't enough, you can do two treatments one after the other. This will help keep your engine's cooling system in good shape and your engine running smoothly.