Hyundai 250D-9 Manual page 169

※
The system must be filled properly to prevent The system must be filled properly to prevent
air locks. air locks.
During filling, air must be vented from the During filling, air must be vented from the
engine coolant passages. Wait 2 to 3 engine coolant passages. Wait 2 to 3
minutes to allow air to be vented; then add minutes to allow air to be vented; then add
mixture to bring the level to the top. mixture to bring the level to the top.
Adequate venting is provided for a fill rate of Adequate venting is provided for a fill rate of
19 liters/minute 19 liters/minute (5 (5 U.S.gal/minute U.S.gal/minute)
②
Operate the engine for 5 minutes with the
coolant temperature above 80°C (176°F).
Shut the engine off, and drain the cooling
system.
③
Fill the cooling system with clean water.
※
Be sure to vent the engine and aftercooler for Be sure to vent the engine and aftercooler for
complete filling. complete filling.
※
Do not install the radiator cap or the new Do not install the radiator cap or the new
coolant filter. coolant filter.
④
Operate the engine for 5 minutes with the
coolant temperature above 80 °C (176 °F).
Shut the engine off, and drain the cooling
system.
※
If the water being drained is still dirty, the If the water being drained is still dirty, the
system must be flushed again until the water system must be flushed again until the water
is clean. is clean.
OFF
OFF
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2609A6MA16
250D9MI10
250D9MI38
250D9MI10