MTU MW15406/17E, Operating Instructions Manual

Page: 203 / 241

7.16.5 Engine coolant ‒ Filling
Preconditions
☑
Engine is stopped and starting disabled.
☑ MTU Fluids and Lubricants Specifications (A001061/..) are available.
Special tools, Material, Spare parts
Designation / Use Part No. Qty.
Engine coolant
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.
NOTICE
Cold coolant in hot engine can cause thermal stress.
Possible formation of cracks in the engine!
• Fill / top up coolant only into cold engine.
Engine coolant ‒ Filling
1. Turn breather valve of filler neck on coolant
expansion tank counterclockwise to first
stop and allow pressure to escape.
2. Continue to turn breather valve counter-
clockwise and remove.
3. Remove plug (required only for first fill).
4. Pour coolant into engine until coolant level
reaches lower edge of cast-in eye of filler
neck.
5. Install plug screw.
6. Check proper condition of breather valve
and clean sealing faces.
7. Place breather valve on filler neck and
close.
8. Start the engine and operate it at idle
speed for some minutes.
9. Check coolant level (→ Page 200).
MW15406/17E 2014-05
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