Disconnect the fuel line and the tank vent line

WARNING: Working on fuel system. 
Risk of fire! Danger of explosion! 

• When working on the fuel system, make sure the workstation has sufficient ventilation, e.g., by means of extraction.
• Tightly seal off open lines and connections; collect any leakage fuel directly at the point of exit.
• No fire, sparks, open flames or smoking.

NOTE: TECHNICAL INFORMATION 
Collect and dispose of emerging fluids.
Observe country-specific waste disposal regulations.

• Unlock and disconnect the fuel line (1)  .
• Close the fuel line (1) with the special tool 0 496 565 (13 5 160) .
• Unlock and disconnect the tank vent line (2)  .

Courtesy of BMW OF NORTH AMERICA, INC.