E 450 V10-6.8L (2008)
Coolant Reservoir: Service and Repair
Degas Bottle
Removal and Installation
1. WARNING: Always allow the engine to cool before opening the cooling system. Do not unscrew the coolant pressure relief cap when the
engine is operating or the cooling system is hot. The cooling system is under pressure; steam and hot liquid can come out forcefully when
the cap is loosened slightly. Failure to follow these instructions may result in serious personal injury.
Release the pressure in the cooling system by slowly turning the pressure relief cap one half turn counterclockwise. When the pressure is released,
remove the pressure relief cap.
2. Using hose clamp pliers, clamp the lower degas bottle hose.
3. Using a suitable suction device, siphon the coolant from the degas bottle.
4. NOTE: Gas engines will only have one coolant hose.
Disconnect the upper coolant hoses at the degas bottle.
5. Remove the bolts and position out the degas bottle.
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To install, tighten to 6 Nm (53 lb-in).
6. Disconnect the lower degas bottle coolant hose and remove the degas bottle.
