Necessary preliminary work

WARNING: This page does not describe the selected car, but rather 15 other vehicles, including the 2015 BMW Alpina B7L, 2015 BMW Alpina B7, 2014 BMW Alpina B7L, 2014 BMW Alpina B7, and 2013 BMW Alpina. However, it is still accessible from the selected car via links, so may be relevant.

Remove ACOUSTIC COVER
Remove front UNDERBODY PROTECTION .
Remove FAN COWL .
Drain coolant for charge air cooler.

Release clamp (1).

Tightening torque 13 71 8AZ .

Release clamp (2).

Replace clamp (2).

Remove left charge-air duct (3).

Installation note:

Check the gasket on the exhaust turbocharger. replacing if necessary.

Fig 1: Identifying Left Charge-Air Duct With Clamps

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: When loosening the coolant hoses from the charge air cooler, make sure that the connector remains connected to the throttle body. Coolant may not penetrate the plug connection at the throttle body.

Release and disconnect coolant hoses (1).

Remove tank vent valve (2) from charge air cooler (3).

Fig 2: Identifying Charge Air Cooler, Tank Vent Valve And Charge Air Cooler

Courtesy of BMW OF NORTH AMERICA, INC.

Unlock connector (1) and remove.

Release screw (2).

Tightening torque 13 71 6AZ .

Installation note:

Screw (2) is longer than screws (3)

Release screws (3).

Tightening torque 13 71 6AZ .

Release clamp (4) on throttle valve unit.

Tightening torque 13 71 7AZ .

Lift out charge air cooler.

Replace faulty hose clamps.

Fig 3: Identifying Charge Air Cooler With Connector, Mounting Screws And Clamps

Courtesy of BMW OF NORTH AMERICA, INC.

Reassemble the vehicle.

After completing all repair work, bleed the COOLING SYSTEM FOR THE CHARGE AIR COOLER .