11 65 300 Adjusting electrical controller drive (wastegate valve) (N55)

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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 (-).

Fig 1: Adjusting Electrical Actuator Drive Nuts Using Open-End Spanners

Courtesy of BMW OF NORTH AMERICA, INC.

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 .

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.