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

WARNING: This page is about a different variant/trim than selected.

Necessary preliminary tasks:

Release plug connection (1) from electrical wastegate actuator.

Installation note:

Ensure retaining clip is seated correctly.

Lock must engage.

Fig 1: Identifying Electrical Wastegate Actuator Plug Connection

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: Identifying Wastegate Flap Lever And Retaining Clip

Release screws (3).

Tightening torque: 11 65 4AZ .

Remove the wastegate actuator.

Fig 3: Identifying Wastegate Actuator And Screws

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 coloured mark.

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

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

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.