Remove the Cap
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.
-- If the vehicle has a decorative wheel hubcap, loosen the full wheel trim all around with the wire clip and wrench from the vehicle tools -arrow A- and then remove it -arrow B-.