Cayman (987) F6-2.9L (2009)
1.1. Switch on the Tester and select the relevant vehicle.
2. Run the individual control unit search for DME.
2.1. To do this, select DME and press F12 >>.
3. After running the individual control unit search for DME, select Special functions.
3.1. Select Drain tank in the menu and press F12 >>.