Overview - Charge Air System

NOTE:

Before checking or repairing, check if all air duct pipes and hoses as well as vacuum lines are connected properly and are not leaking.

Fig 1: Exploded View Of Charge Air System

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

Seal
- Check for damage and replace if necessary.
Bleeder Line
- For vehicles with Activated Charcoal Filter Air Flushing Pressure Sensor -GX44-
- Connection diagram. Refer to CONNECTION DIAGRAM - EVAP SYSTEM .
Bleeder Line
- For vehicles with Activated Charcoal Filter Air Flushing Pressure Sensor -GX44-
- Between the air duct pipe and the connection on the turbocharger
- Connection diagram. Refer to CONNECTION DIAGRAM - EVAP SYSTEM .
Connection
- On the turbocharger
- Overview. Refer to OVERVIEW - TURBOCHARGER .
- Removing and Installing. Refer to TURBOCHARGER CONNECTIONS, REMOVING AND INSTALLING .
Air Duct Pipe Between Charge Air Cooler and Turbocharger
- Removing and Installing. Refer to AIR DUCT PIPE BETWEEN CHARGE AIR COOLER AND TURBOCHARGER, REMOVING AND INSTALLING .
Retaining Bracket
- Always replace after removing
Seal
- Always replace after removing
- Coat with engine oil before assembly
Bolt
- 7 Nm
- Thread cutting
- Quantity: 1
Bolt
- 7 Nm
- For the coolant pipe
- Thread cutting
- Quantity: 1
Charge Air Cooler
- Installation position Charge Air Pressure Sensor -GX26-. Refer to Fig 2.
- Removing and Installing. Refer to CHARGE AIR COOLER, REMOVING AND INSTALLING .
Seal
- Always replace after removing
- Coat with engine oil before assembly
Throttle Valve Control Module -GX3-
- Consists of
  Throttle Valve Control Module -J338-
  
  EPC Throttle Drive -G186-
  
  EPC Throttle Drive Angle Sensor 1 -G187-
  
  EPC Throttle Drive Angle Sensor 2 -G188-
- Removing and Installing. Refer to Throttle Valve Control Module -GX3-, REMOVING AND INSTALLING .
- Cleaning. Refer to Throttle Valve Control Module -GX3-, CLEANING .
Bolt
- 7 Nm
- Thread cutting
- Quantity: 4
Bolt
- 3 Nm
- Thread cutting
- Quantity: 2
- Intended for if the retaining tabs on the sensor are broken. Refer to the Parts Information.
Charge Air Pressure Sensor -GX26-
- Overview. Refer to Fig 2.
- Removing and Installing. Refer to Charge Air Pressure Sensor -GX26-, REMOVING AND INSTALLING .
Seal
- Check for damage and replace if necessary.
- Coat with engine oil before assembly
Intake Manifold
- Overview. Refer to OVERVIEW - INTAKE MANIFOLD .
- Removing and Installing. Refer to INTAKE MANIFOLD, REMOVING AND INSTALLING .
Seal
- Always replace after removing
- Coat with engine oil before assembly
Air Duct Pipe Between Charge Air Cooler and Intake Manifold
- Removing and Installing. Refer to AIR DUCT PIPE BETWEEN CHARGE AIR COOLER AND INTAKE MANIFOLD, REMOVING AND INSTALLING .
Seal
- Always replace after removing
- Coat with engine oil before assembly
Intake Manifold Sensor -GX9-
- Consists of
  - Manifold Absolute Pressure Sensor -G71-
  - Intake Manifold Temperature Sensor -G72-
- Overview. Refer to Fig 3.
- Removing and Installing. Refer to Intake Manifold Sensor -GX9-, REMOVING AND INSTALLING .
Bolt
- 3 Nm
- Thread cutting
- Intended for if the retaining tabs on the sensor are broken. Refer to the Parts Information.
- Quantity: 2

Overview - Charge Air Pressure SensorGX26

Fig 2: Overview - Charge Air Pressure Sensor -GX26-

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

1 - Charge Air Pressure Sensor -GX26-, Removing and Installing. Refer to Charge Air Pressure Sensor -GX26-, REMOVING AND INSTALLING .

2 - Screw, 3 Nm

3 - Check the O-ring for damages and replace if necessary The O-ring is not available separately.

Fig 3: Overview - Intake Manifold Sensor -GX9-

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.