Dodge 2007 Sprinter Owner's Manual page 256

Problem
The coolant temperature gauge is above
250 °F (+120 °C).
Possible cause/result
The coolant is too hot and the engine is not
being sufficiently cooled.
What to do if ...
Suggested solutions
Park your vehicle in a safe location as
quickly as possible and let the engine
continue to run at idle speed for about
1 to 2 minutes before switching it off.
This allows the coolant temperature
to return to normal again.
If the coolant temperature is still too high:
Switch off the engine and let it as well
as the coolant cool down.
Check the coolant level and observe
the warning notes as you do so
( page 191).
Add coolant as necessary.
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