911 Carrera 4 Cabriolet (996) F6-3.4L (1999)
7. In vehicles with air conditioning, the additional assembly operations must be performed:
Suck Pentosin fluid out of the reservoir until the level is just below the joint.
7.1 Turn bayonet lock in the direction indicated by the arrow and pull off the reservoir. Immediately seal the lower reservoir with a suitable plug
(30 mm [diameter]).
Bayonet lock open
7.2 Disconnect battery positive at B+ disconnection point. Undo the hexagon nuts and set the box aside.
7.3 Remove drive belt. Mark belt travel direction with a colored pen. Slacken belt, turning the tensioning pulley (wrench size 24 mm) clockwise,