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This guide will show you how to remove a carbon build up from the engine of a 2012 VW CC. Carbon build up occurs naturally in these engines as they age as a byproduct of normal use. The buildup can cause engine roughness and even an inability to function if allowed to persist. However, it isn’t that difficult to repair!

Aletler

Parçalar

  1. Start the engine. Let the engine warm up to operating temperature.
    • Start the engine.

    • Let the engine warm up to operating temperature.

    • Shut the engine off.

  2. Locate the hood latch lever under the left side of the dash on the driver side of the vehicle. Pull the hood latch lever towards the rear of the vehicle to unlock the hood. Apply upward pressure on the front of the hood and pull up on the plastic lever that is under the front center section of the hood.
    • Locate the hood latch lever under the left side of the dash on the driver side of the vehicle.

    • Pull the hood latch lever towards the rear of the vehicle to unlock the hood.

    • Apply upward pressure on the front of the hood and pull up on the plastic lever that is under the front center section of the hood.

  3. Find the engine air intake hose near the top rear of the engine bay. The opening clip can be found near the joint of the intake hose.
    • Find the engine air intake hose near the top rear of the engine bay.

    • The opening clip can be found near the joint of the intake hose.

    • Make sure this clip is located after the Mass Airflow Sensor in order to avoid a check engine light.

    • The engine may be hot to the touch.

  4. Hang the intake cleaner can in the engine bay for easy access and use in the future steps. Remove the line from the packaging.
    • Hang the intake cleaner can in the engine bay for easy access and use in the future steps.

    • Remove the line from the packaging.

  5. Apply pressure on the tabs of the metal clip with the pliers to release the pressure from the intake hose. Slide the clip to the left so that it does not cover the joint.
    • Apply pressure on the tabs of the metal clip with the pliers to release the pressure from the intake hose.

    • Slide the clip to the left so that it does not cover the joint.

    • The clip is very strong, so a large amount of force may be required.

  6. Separate the hose connection by applying a twisting and pulling force simultaneously on both ends of the connection.
    • Separate the hose connection by applying a twisting and pulling force simultaneously on both ends of the connection.

  7. Insert the metal hook at the end of the valve cleaner line into hose opening. Close the intake hose over the hook being sure not to pinch the part of the line that is not covered by the hook. Secure the intake hose so that a moderately tight seal keeps the valve cleaner line secure.
    • Insert the metal hook at the end of the valve cleaner line into hose opening.

    • Close the intake hose over the hook being sure not to pinch the part of the line that is not covered by the hook.

    • Secure the intake hose so that a moderately tight seal keeps the valve cleaner line secure.

  8. Guide the extra cleaner line through the metal hook so that it extends into the intake hose.
    • Guide the extra cleaner line through the metal hook so that it extends into the intake hose.

  9. Turn the red dial for the cleaner timer from the "O" to the “I” position.
    • Turn the red dial for the cleaner timer from the "O" to the “I” position.

  10. This step will start the timer on the can. You will have 1 minute before the can starts dispensing the cleaner. Be ready to complete step 11 and start step 12 in this time frame.
    • This step will start the timer on the can. You will have 1 minute before the can starts dispensing the cleaner. Be ready to complete step 11 and start step 12 in this time frame.

    • Arm the spring in the can by turning the blue dial from "O" to “I".

    • Assure the can is secure so that it will not interfere with the engine or fall off the hanger.

  11. Return to the interior of the vehicle. Assure the vehicle is in neutral and the parking brake is set to prevent inadvertent vehicle movement.
    • Return to the interior of the vehicle.

    • Assure the vehicle is in neutral and the parking brake is set to prevent inadvertent vehicle movement.

    • Start the vehicle within one minute of arming the valve cleaner can.

  12. Press the accelerator and bring the engine up to 3x idle speed. For this make and model the speed will read 2800 RPM.
    • Press the accelerator and bring the engine up to 3x idle speed.

    • For this make and model the speed will read 2800 RPM.

    • Hold the engine at this speed for 9-10 minutes until the cleaner is completely empty.

    • Shut off the engine.

Sonuç

To reassemble your vehicle, follow these instructions from step 6 to step 2 in reverse order.

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