Operating instructions

3.11 After stopping the engine
Preconditions
☑ MTU Fluids and Lubricants Specifications (A001061/..) 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 stopping the engine
Item Action
Coolant circuit Drain engine coolant (→ Page 81);
Drain charge-air coolant (→ Page 92) 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‐
tem
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 A001061/..).
MS150095/01E 2012-08 | Operation | 33
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