Suction Jet Pump
Suction Jet Pump
Special tools, testers and auxiliary items required
• Wrench (T10202)
Removing
Follow all safety precautions. Refer to => [ Safety Precautions ] General Information.
Follow the guidelines for cleanliness. Refer to => [ Clean Working Conditions ] Clean Working Conditions.
Risk of destroying electronic components when disconnecting the battery.
• Observe measures for disconnecting battery.
- Disconnect the battery.
TT Roadster:
• It is necessary to remove the fuel tank first in order to remove the suction jet pump on the Audi TT Roadster.
- Removing fuel tank. Refer to => [ Fuel Tank with Attachments ] Fuel Tank with Attachments.
TT Coupe:
Danger due to escaping fuel.
• To prevent large quantities of fuel from coming out of the suction jet pump when removing, fuel tank may only be a maximum of 1/3 full.
- Empty fuel tank if necessary. Refer to => [ Fuel Tank, Draining ] Fuel Tank, Draining.
- Remove rear seat bench.
- Unclip catches - arrows - of the right connector flange cover.
- Disconnect the connector - arrow - from the locking flange.
- Mark the fuel supply line - 1 - and fuel return line - 2 -.
There is a risk of injury because the fuel is under high pressure.
• To reduce pressure in fuel system, lay a clean cloth around the connector and carefully loosen connector.
- Pull both lines from locking flange, by pressing the release buttons.
- Unclip the retainers - arrows - of the cover for left sealing flange.
- Disconnect electrical harness connector - 1 - at locking flange.
- Disengage electrical harness connector - 2 - and lay it aside.
TT Roadster:
- Mark the fuel supply and return lines on the right locking flange when the fuel tank is removed.
- Pull both lines from locking flange, by pressing the release buttons.
TT Coupe:
Danger due to escaping fuel.
• To prevent large quantities of fuel from coming out of suction jet pump when removing, fuel tank may only be a maximum of 1/3 full.
All Vehicles:
- Remove right locking ring with (T10202).
- Pull the sealing flange and seal of fuel delivery unit out from the opening in the fuel tank and lay aside with lines still attached.
- Through the fuel tank opening, separate the suction jet pipe - 2 - from suction jet pump, by pressing release button.
- Disconnect fuel delivery line - 1 - by pressing the release - arrow -.
- Remove left locking ring with (T10202).
- Carefully pull the fuel level sensor 2 (G169) - 2 - and suction jet pump - 1 - partially out of the fuel tank opening.
- Remove seal.
- Unclip the suction jet pump from the locking flange - arrows -.
• When removing, be sure not to bend floater arm of fuel level sensor 2.
- Reach into the fuel tank opening on left side of the vehicle and pull the suction jet pump with lines out toward the left.
Installing
• Tightening specification, refer to => [ Fuel Delivery Unit and Fuel Level Sensor (G) Overview ] Fuel Delivery Unit and Fuel Level Sensor (G) Overview.
Install in reverse order, paying attention to the following:
• Replace seals.
• When inserting, be sure not to bend floater arm on fuel level sensor 2.
- Push suction jet pump with lines at left side of vehicle into fuel tank opening.
- Reach into the fuel tank opening on the right side of the vehicle and pull the suction jet pump with lines into installed position.
- Push the fuel delivery line - 1 - on until it engages audibly.
- Push the suction jet pipe - 2 - onto the suction jet pump until it engages audibly.
- Install the new locking flange seal dry.
- Insert guide of locking flange into guide at fuel delivery unit, observing spring while doing so.
Risk of leaking.
• When inserting sealing flange, sealing ring must not be damaged or crushed.
- Press locking flange down against spring pressure and bring it into installation position.
• The tab - 2 - on locking flange faces toward the arrow marking and must lie between tabs - 1 and 3 - on the fuel tank.
• - Arrow - points in direction of travel.
- Tighten locking ring.
- Carefully insert fuel level sensor 2 in fuel tank opening.
- Clip the suction jet pump - 1 - to the locking flange - 2 - so that it is audibly engaged.
- Install the new locking flange seal dry.
Risk of leaking.
• When inserting sealing flange, sealing ring must not be damaged or crushed.
- Press locking flange down against spring pressure and bring it into installation position.
• The tab - 2 - on locking flange faces toward the arrow marking and must lie between tabs - 1 and 3 - on fuel tank.
• - Arrow - points in direction of travel.
- Tighten locking ring.
TT Coupe:
- Install rear seat bench.
- Observe safety precautions after connecting battery.
TT Roadster:
- Installing fuel tank vehicles with all wheel drive => [ Installing ] Fuel Tank with Attachments.
All Vehicles:
- After installing suction jet pump, fill vehicle with at least 5 liters of fuel.