4.6 After engine shutdown
Preconditions
☑ MTU Fluids and Lubricants Specifications (A001063/..) are available.
Note:
If freezing temperatures are to be expected: Coolant pressure sensors installed in vertical position may
be damaged if the coolant does not contain antifreeze additive.
After engine shutdown
Item
Action
Coolant circuit
Drain engine coolant (→ Page 51);
Drain charge-air coolant (→ Page 58) if:
• freezing temperatures are expected and the engine is to remain out of
service for an extended period, but engine coolant has no antifreeze
additive;
• the engine room is not heated;
• the coolant is not kept at a suitable temperature;
• the antifreeze concentration is insufficient for the engine-room tempera‐
ture;
• antifreeze concentration is 50 % and engine-room temperature is below
-40 °C.
Engine control system
Switch off.
Air intake and exhaust sys‐
tems
If the engine is to remain out of service for more than 1 week, seal the
engine's air and exhaust sides. If the engine is to remain out of service for
more than 1 month, carry out preservation (→ MTU Fluids and Lubricants
Specifications A001063/..).
MS15025/00E 2011-12 | Operation | 29
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