Where does antifreeze go in a 2000 Jetta?

In a 2000 Volkswagen Jetta, antifreeze is added to the coolant reservoir, which is typically located near the back of the engine bay, on the driver's side. The coolant reservoir has markings to indicate the minimum and maximum levels. Ensure that the engine is cool before adding antifreeze, and use the appropriate type recommended in the owner's manual for optimal performance.