Overview - Charge Air System, Engine-Side, AUDI A8
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2023 Audi SQ8, 2023 Audi RS Q8, 2022 Audi SQ8, 2022 Audi RS Q8, and 2021 Audi SQ8. However, it is still accessible from the selected car via links, so may be relevant.
- Air Duct Hose
- Right lower air duct pipe on the turbocharger
- Removing and installing. Refer to AIR DUCT PIPE, REMOVING AND INSTALLING .
- Bolt
- 9 Nm
- O-Ring
- Replace after removing
- O-Ring
- Red
- Replace after removing
- Venturi Injector/Plug
- Quantity: 2
- O-Ring
- Green
- Replace after removing
- Bolt
- 9 Nm
- Upper Air Guide Pipe
- There are different versions. Refer to the appropriate Electronic Parts Information.
- Removing and installing. Refer to AIR DUCT PIPE, REMOVING AND INSTALLING .
- Disconnect and connect the crankcase ventilation hose. Refer to Figure.
- Bolt
- 9 Nm
- Seal
- Replace after removing
- Turbocharger
- Cylinder Bank 1 (Right)
- Overview. Refer to OVERVIEW - TURBOCHARGER .
- Turbocharger
- Cylinder Bank 2 (Left):
- Overview. Refer to OVERVIEW - TURBOCHARGER .
- Seal
- Replace after removing
- O-Ring
- Grey
- Replace after removing
- O-Ring
- Red
- Replace after removing
- O-Ring
- Black
- Replace after removing
- O-Ring
- Blue
- Replace after removing
- Line
- For the EVAP system
- Installed depending on the version. Refer to the appropriate Electronic Parts Information.
- O-Ring
- Replace after removing
- Bolt
- 9 Nm
- Bolt
- 5 Nm
- Throttle Valve Control Module
- Throttle Valve Control Module -GX3- Cylinder Bank 1 (right)
- Throttle Valve Control Module 2 -GX4- Cylinder Bank 2 (left)
- Overview. Refer to OVERVIEW - INTAKE MANIFOLD .
- O-Ring
- Replace after removing
- Bolt
- thread cutting
- Position the bolt by hand and tighten it until it finds the old threads. Then tighten the bolt to the specification.
- 3.5 Nm
- Bracket
- For the air duct pipe
- Lower Air Duct Pipe on Throttle Valve Control Module
- Removing and installing. Refer to AIR DUCT PIPE, REMOVING AND INSTALLING .
- Bolt
- 7 Nm
- O-Ring
- Replace after removing
- Charge Air Pressure Sensor
- Charge Air Pressure Sensor -G31- cylinder bank 1 (right)
- Removing and installing. Refer to CHARGE AIR PRESSURE SENSOR -G31-, REMOVING AND INSTALLING
- Charge Air Pressure Sensor 2 -G447- Cylinder Bank 2 (left)
- Removing and installing. Refer to CHARGE AIR PRESSURE SENSOR 2 -G447-, REMOVING AND INSTALLING
- Left lower air duct pipe on the turbocharger
- Removing and installing. Refer to AIR DUCT PIPE, REMOVING AND INSTALLING .
Crankcase Ventilation Hose on the Upper Air Duct Pipe, Rest of World Market Versions Excluding Engine Codes DWPA
The crankcase ventilation hose -2- cannot be removed from the air duct pipe -1- without damage.
- Replace the crankcase ventilation hose after removal.
-- Pry out the crankcase ventilation hose carefully using a screwdriver at the same time do not damage the air duct pipe.
-- Attach the new crankcase ventilation hose until it audibly locks on the air duct pipe.
Crankcase Ventilation Hose on the Upper Air Duct Pipe, North American Versions Excluding Engine Codes DWPA
CAUTION:
Risk of a violating emissions legislation on USA vehicles by the intake of leaked air.
- Do not open the hose connection on the crankcase ventilation.
-- Do not disconnect the hose -2- for the crankcase ventilation.
- The crankcase ventilation hose is not available separately.
- The crankcase ventilation hose is available in the air duct pipe delivery package -1-.