Suction Jet Pump
Suction Jet Pump
Special tools, testers and auxiliary items required
• Wrench (T10202)
Removing
Observe safety precautions, refer to => [ Safety Precautions ] Service Precautions.
Observe rules for cleanliness, refer to => [ Clean Working Conditions ] Clean Working Conditions.
• To remove the suction jet pump, the fuel tank may only be filled to a maximum of 1/3. Empty fuel tank if necessary. Refer to => [ Fuel Tank, Draining, AWD ] Fuel Tank, Draining, AWD.
Risk of destroying electrical components when battery is disconnected.
• Observe measures when disconnecting battery.
- Disconnect battery.
- Remove rear seat bench.
- Unclip catches - arrows - of right connector flange cover.
- Disconnect electrical harness connector - arrow - at 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.
• Before opening the fuel system, lay a clean cloth around the connection point and carefully loosen it, which lowers the pressure.
- Pull both lines from locking flange, by pressing the release buttons.
The fuel tank may only be maximum 1/3 full when removing the fuel delivery unit. Otherwise, a large amount of fuel will spill out.
- Remove 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 - 1 - from suction jet pump, by pressing release button.
- Disconnect fuel delivery line - 2 - by pressing the release - arrow -.
- 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.
- Remove 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 vehicle and pull the suction jet pump with lines out toward the left.
Installing
• Tightening specifications, refer to => [ Fuel Delivery Unit and Fuel Level Sensor Overview, AWD Version 2 ] Fuel Delivery Unit and Fuel Level Sensor Overview, AWD Version 2.
Installation is in reverse order of removal, note 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 right side of vehicle and pull the suction jet pump with lines into installed position.
- Push the fuel delivery line - 2 - on until it engages audibly.
- Push the suction jet pipe - 1 - onto the suction jet pump until it engages audibly.
• Both of the following illustrations show the fuel delivery unit without the fuel tank.
- Insert a new dry locking flange seal into the fuel tank opening.
- Insert the guide tubes - 1 - and - 2 - of the locking flange into the guide holes - arrows - of the fuel delivery unit.
- Make sure the electrical wires - 2 - and the fuel supply lie - 3 - are routed as shown in the illustration so they do not block the lever sensor - 1 -.
- Press the locking flange down and bring it into the 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.
- Carefully insert fuel level sensor 2 - 2 - into fuel tank opening.
- Clip the suction jet pump - 1 - on the sealing flange - 2 - until it engages audibly while spreading the mount on the locking flange slightly - arrows -.
- Install the new locking flange seal dry.
- Press the locking flange down and bring it into the 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.
- Install rear seat bench.
- Observe safety precautions after connecting battery.