16 11 120 Removing And Installing / Replacing Expansion Tank For Tank Ventilation

WARNING: This page is about a different car, the 2008 BMW Alpina and 2007 BMW Alpina. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Remove rear right wheel . See 36 10 300 REMOVING OR INSTALLING FRONT OR REAR WHEEL .

Observe safety instructions when raising the vehicle.

Remove rear right wheel arch trim.

Fig 1: Removing Rear Right Wheel Arch Trim

Courtesy of BMW OF NORTH AMERICA, INC.

Release hose clamps (1-3) and detach lines from expansion tank:

Installation:

Replace hose clamps.

Tank vent
Tank venting
Scavenging air line

Fig 2: Identifying Tank Vent, Fuel Tank Vent And Air Line
Courtesy of BMW OF NORTH AMERICA, INC.

Detach rubber hose (1) from connection (2).

Unfasten hose clip (3).

Detach line (4) from expansion tank.

Installation:

Replace hose clamps.

Fig 3: Identifying Rubber Hose, Connection, Hose Clip And Line

Courtesy of BMW OF NORTH AMERICA, INC.

Unscrew nuts (1).

Lower expansion tank (2) with carbon canister (3).

Installation:

Make sure expansion tank is correctly seated in rubber mounts (4).

Tightening torque. See FUEL SYSTEM - TIGHTENING TORQUES .

Fig 4: Identifying Nuts, Expansion Tank, Carbon Canister And Rubber Mounts

Courtesy of BMW OF NORTH AMERICA, INC.