8.15.3 Charge-air coolant – Draining
Preconditions
☑
Engine is stopped and starting disabled.
Special tools, Material, Spare parts
Designation / Use
Part No.
Qty.
Sealing ring
(→ Spare Parts Catalog)
DANGER
Falling from great heights.
Risk of serious injury – danger to life!
• When working high on the equipment, always use suitable ladders or work platforms.
• Use personal protective equipment.
WARNING
Coolant is hot and under pressure.
Risk of injury and scalding!
• Let the engine cool down.
• Wear protective clothing, gloves, and goggles / safety mask.
WARNING
Coolant contains antifreeze and is toxic.
Risk of poisoning and slipping!
• Avoid contact with eyes and skin.
• Do not inhale vapors or mist, wear breathing protection.
• Do not eat, drink, smoke when working with antifreeze.
• Wear protective clothing, protective gloves and goggles/safety mask.
• Wipe up escaped/spilled coolant immediately.
Charge-air coolant – Draining
1.
Provide a suitable container in which to collect the charge-air coolant.
2.
Turn valve cover of coolant expansion tank counterclockwise until the first stop and allow pressure to es-
cape.
3.
Continue to turn valve cover counterclockwise and remove.
4.
Extract remaining charge-air coolant in the coolant expansion tank via the filler neck.
5.
Unscrew drain plug (1) and drain charge-air
coolant at thermostat housing.
6.
Open drain valve (2) and drain charge-air
coolant at charge-air coolant pump.
186 | Low-Temperature Circuit | MS15058/04E 2018-12
TIM-ID: 0000072169 - 002