WARNING: This page is about a different car, the 2012 Volkswagen Touareg and 2011 Volkswagen Touareg. However, it is still accessible from the selected car via links, so may be relevant.
-- Remove the engine cover first toward the front using both hands in direction of -arrows- and then to the rear (toward the plenum chamber bulkhead).
Fig 1: Identifying Removal Of Engine Cover From 4 Ball Studs -Arrow-