Preliminary work for heat exchanger hose
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2013 Porsche 911, 2012 Porsche 911, 2011 Porsche 911, 2010 Porsche 911, and 2009 Porsche 911. However, it is still accessible from the selected car via links, so may be relevant.
Drain coolant. → 193817 DRAINING AND TOPPING UP WITH COOLANT - section on "Draining"
Remove battery cover. → 271219 REMOVING AND INSTALLING BATTERY COVER - section on "Removing"
Removing the battery. → 270619 REMOVING AND INSTALLING BATTERY - section on "Removing"