11 65 300 Removing and installing/replacing electrical actuator (wastegate valve) (N20)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2016 BMW 328i xDrive, 2016 BMW 328d xDrive, 2015 BMW 328i xDrive, 2015 BMW 328d xDrive, and 2014 BMW 328i xDrive. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Remove INTAKE SILENCER HOUSING .

Release plug connection (1) from electrical wastegate actuator.

Installation note:

Ensure retaining clip is seated correctly.

Lock must engage.

Fig 1: Electrical Wastegate Actuator Plug Connection

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Never pull off the adjustment plate (2) from the wastegate flap lever if the servomotor is still screwed on.
Risk of damage to drive linkage.

Release retaining clip (1).

Installation note:

Always renew retaining clip (1) after releasing.

Fig 2: Wastegate Flap Lever And Retaining Clip

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (3).

Tightening torque: 11 65 4AZ .

Remove the wastegate actuator.

Fig 3: Plug Connections And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Basic setting of the wastegate linkage can only be checked or adjusted using the diagnosis.

IMPORTANT: The adjusting nuts (1 and 2) may only countered by using two open-end spanners.
Using just one open-end spanner risks damaging the electrical actuator drive.

Installation note:

Shorten adjustment travel (-).

Increase adjustment travel (+).

To ensure a reliable setting of the adjustment travel, both adjusting nuts must be marked with a colored mark.

One full turn of the adjusting nut corresponds to an adjustment travel of 0.75 mm .

Fig 4: Adjusting Electrical Controller Drive Nuts Using Open-End Spanners

Courtesy of BMW OF NORTH AMERICA, INC.

Example 1:

Actual value measured by the diagnostic function: +0.75 mm.

Required correction: +0.75 mm: 0.75 mm = +1.0 turns .

Adjust the linkage setting correction by turning nut (1) through 1.0 turns in + direction before resetting nut (2) and countering with 6 Nm.

Example 2:

Actual value measured by the diagnostic function: -1.5 mm.

Required correction: -1.5 mm: 0.75 mm = -2 turns.

Adjust the linkage setting correction by turning nut (2) through 2 turns in - direction before resetting nut (1) and countering with 6 Nm.

Check basic setting again using diagnosis.

Assemble engine.