Engine Coolant - Filling - MTU 16V4000M*3 series Operating Instructions Manual

8.17.4 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
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.
Preparatory steps
Note: On engines with a separate heat exchanger,
the expansion tank is connected separately
from the engine to the external cooling sys-
tem.
1. Turn breather valve on filler neck of expan-
sion tank counterclockwise to first stop and
allow pressure to escape.
2. Continue to turn breather valve counterclock-
wise and remove.
230 | Coolant Circuit, General, High-Temperature Circuit | MS15035/00E 2018-08
Part No. Qty.