Remove fuel draining unit

Fig 1: Identifying Adapter Hose And Line Nipple

Courtesy of VOLVO CARS OF NORTH AMERICA.

Corrective actions: 

• Remove adapter hose from the engine.
• Wait a minute or so for the hose to empty.
• Turn off the draining unit.
• Remove the measurement equipment and hoses from the car.

Fig 2: Identifying Fuel Rail Protective Cap

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Reinstall the protective cap on the fuel rail.