MWM MS 3.9L, Operation And Maintenance Manual, Page: 25 / 53

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NP 085.70.69 - 01/06
Cooling System
Preventive Maintenance
While the engine is running at a high temperature room, frequently check the temperature indicator.
Level Check (Daily)
1. Remove radiator cap.
2. If necessary, complete the level with potable water up to the lower part of the filling neck.
Caution: Never check the engine coolant level immediately after stopping the engine. This could cause a
serious burning.
3. If level is frequently low, operate the engine and check it for eventual leakages.
4. If it is necessary to fill up the radiator while engine is still hot, keep it at a middle acceleration regime.
Caution: Do not drain the engine coolant from a hot engine with its coolant system pressurized.