Check The Coolant Level In The Coolant Reservoir

WARNING: This page is about a different car, the 2016 Volkswagen Beetle, 2015 Volkswagen Beetle, 2014 Volkswagen Beetle, and 2013 Volkswagen Beetle. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Coolant Reservoir

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

The coolant level must be between the "min" and "max" markings when the engine is cold.
The coolant level may be at the "max" marking -arrow- when the engine is warm.

-- Add more coolant if necessary.