Coolant warning light blinks red after starting cold engine. on 2004 Volkswagen Beetle

Light goes out when engine warms up.

by in Decatur, GA on October 13, 2011
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1 answer
ANSWER by , October 17, 2011
First thing you should check is your coolant level. Sounds like you might be just below the sensor on start up. Then when the vehicle warms up, the fluid expands and covers the sensor turning the light off.