How long do you have to wait to refill coolant?

Add coolant? You can easily add these yourself. However, it is advisable not to add coolant immediately when the engine is still warm. So be careful and let the car sit and cool for a while. The coolant temperature can rise sharply when the engine is running. It can therefore be dangerous to refill while the engine is still warm. We recommend waiting at least 15 to 20 minutes, assuming the engine is cold, then of course you can add it right away.

Conclusion: It is best to wait 15 to 20 minutes to refill the coolant. So take your time and choose a safe place at a gas station, at home or in the parking lot.