WARNING: This page is about a different car, the 2004 Volkswagen R32. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Pulling Off Connecting Sleeve
Courtesy of VOLKSWAGEN UNITED STATES, INC.
B - Extractor , e.g. Kukko 18/1
C - Separating device 12 to 75 mm , e.g. Kukko 17/1