6 Maintenance
Checking coolant level Daily, before starting. COOLANT
4 Checking coolant level
5 Coolant level
6 Topping up coolant
• Check the coolant level in the header tank. This has to be checked when the engine is cold.
The coolant must be at the minimum level.
• If necessary, top up. The internal cooling system can be filled with a mixture of anti-freeze (40 %) and tap water (60 %) or with a special coolant. For specification, see page 119.
• Remove the cap of the filler neck on the heat exchanger.
Warning Never open the cap on the header tank when the engine is at operating temperature.
Note If a water heater is connected, see page 22 and 23.
Caution Never fill the cooling system with sea water or brackish water. 43
