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Home >> Audi >> 2025 >> S4 Premium >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Cylinder Head, VALVETRAIN (Servicing - 6-Cylinder 2.9L; 3.0L 4V TFSI Ea839 Engine) >> 15 Cylinder Head, VALVETRAIN >> VALVETRAIN >> Cam Actuator, Removing And Installing >> Removing

Cam Actuator, Removing And Installing: Removing

Depending on the model, preliminary work may be required. Refer to CAM ACTUATOR, REMOVING AND INSTALLING .

Cylinder Bank 1 (Right):

GWWA15-12060Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the connectors:

  1. For Cylinder 1 Intake Cam Actuator 1 -F448-, Cylinder 2 Intake Cam Actuator 1 -F452- and Cylinder 3 Intake Cam Actuator 1 -F456-
  2. For Ignition Coil 1 with Power Output Stage -N70-, Ignition Coil 2 with Power Output Stage -N127- and Ignition Coil 3 with Power Output Stage -N291-

-- Remove the bolts -arrows- and free up the ground cable.

Cylinder Bank 2 (Left):

GWWA15-12061Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the connectors:

  1. For Cylinder 4 Intake Cam Actuator 1 -F460-, Cylinder 5 Intake Cam Actuator 1 -F464- and Cylinder 6 Intake Cam Actuator 1 -F468-
  2. For Ignition Coil 4 with Power Output Stage -N292-, Ignition Coil 5 with Power Output Stage -N323-, Ignition Coil 6 with Power Output Stage -N324- (If necessary, lift the wiring duct slightly upward)
  3. For the Camshaft Position Sensor 2 -G163-

-- Remove the bolts -arrows- and free up the ground cable.

Continuation for Both Sides:

GWWA15-12044Courtesy of AUDI OF AMERICA, LLC

-- Push the upper section of the noise insulation upward.

-- Remove the bolts -arrows- and then remove the cam actuator -1-.