Nissan X-Trail 2024 Owners Manual
10.5.1. Changing intercooler coolant
Intercooler coolant is maintenance-free.
If replacement is required, it is recommended you visit a NISSAN dealer or qualified workshop for this service.
Improper servicing can result in intercooler overheating.

To avoid the danger of being scalded, never change the coolant when the engine is hot.
Never remove the radiator or coolant reservoir cap when the engine is hot. Serious burns could be caused by high pressure fluid escaping from the radiator or coolant reservoir.
Avoid direct skin contact with used coolant. If skin contact is made, wash thoroughly with soap or hand cleaner as soon as possible.
Keep coolant out of the reach of children and pets.
Intercooler coolant must be disposed of properly. Check your local regulations.
Owners Manual