4.16 After stopping the engine
Preconditions
☑
MTU Preservation and Re-preservation Specifications (A001070/..) are available.
After stopping the engine
Item
Measure
Coolant circuit
Drain coolant (→ Page 236) if:
• freezing temperatures are expected and the engine is to remain out of
service for an extended period, but engine coolant has no antifreeze addi-
tive;
• 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.
Raw water (only on engines
with engine-mounted heat
exchanger)
Drain
• if freezing temperatures are expected and the engine is to remain out of
service for an extended period.
Engine control system
Switch off.
Air intake and exhaust sys-
tem
Out-of-service-period > 1 week
• Seal engine on air and exhaust sides.
Out-of-service-period > 1 month
• Preserve engine (→ MTU Preservation and Re-preservation specifications
A001070/..).
MS150109/01E 2015-11
| Operation | 89
TIM-ID: 0000010168 - 004
