Check the Coolant Level

WARNING: This page is about a different car, the 2015 Volkswagen Beetle. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Expansion Tank Upper Hatched Field Mark

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

The coolant level must be between the min mark and the max markings when the engine is cold.
Coolant level may be at the MAX marking with engine at operating temperature.

-- Add more coolant if necessary.