Preliminary Work

Remove rear spoiler.
→ 665819 REMOVING AND INSTALLING REAR SPOILER .
WARNING:
Hot fluid
- Danger of scalding
→ Let the fluid cool down.

→ Wear personal protective gear.
Remove service tray.
1. 2.1. Unscrew cap on coolant reservoir -1- .
2. 2.2. Unscrew M6 screw -2- .
  
  Fig 1: Identifying Cap On Coolant Reservoir And Cover Screw
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Disconnect oil filler hose -1- .
1. 3.1. Open spring band clamp -2- , pull off oil filler hose -1- and remove the service tray.
  
  Fig 2: Identifying Oil Filler Hose On Cover
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Drain coolant from the engine.
→ 193817 DRAINING AND FILLING COOLANT .