Draining the gas pipe assembly
WARNING: This page is about a different car, the 2002 Volvo C70, 2001 Volvo C70, 2000 Volvo C70, 1999 Volvo C70, and 1998 Volvo C70. However, it is still accessible from the selected car via links, so may be relevant.
Start the engine. Ensure that the engine is running on gas (CNG or LPG).
Lift up the rear section of the cargo compartment carpet.
Disconnect the connector on the right-hand side of the cargo compartment.
The engine will stop after approximately one minute.