Suction Jet Pumps
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2015 Audi Q7, 2014 Audi Q7, 2013 Audi Q7, 2011 Audi Q7, and 2010 Audi Q7. However, it is still accessible from the selected car via links, so may be relevant.
Version 1: Vehicles with 3.0L (V6)/4.2L (V8) engines through 05/2010 and 6.0L (V12) Engine
- Fuel tank is divided into a left and a right chamber. The two so-called suction jet pumps -1 and 4- transport the fuel volumes from the left fuel tank chamber to the right to the fuel delivery unit baffle housing -5- or from the right fuel tank chamber to the left to the fuel delivery baffle housing -8-.
- Function of the suction jet pumps is based on a simple physical principle: An injector in the suction jet pumps -1 and 4- compresses the suction jet from the preliminary stage of the electrical fuel pump on the right -5- or left side -8-, which accelerates the suction jet. This acceleration causes the surrounding fuel to be drawn in and be forced to the baffle housings of the fuel delivery units. The right suction jet pump -4- supplies the left baffle housing and the left suction jet pump -1- supplies the right baffle housing.
- Left Suction Jet Pump
- Suction Jet Pipe
- To disconnect, press release button on connection piece.
- Fuel Supply Line
- Clipped on the right fuel delivery unit
- Right Suction Jet Pump
- Right Fuel Delivery Unit
- With Transfer Fuel Pump -G6-
- Suction Jet Pipe
- To disconnect, press release button on connection piece.
- Fuel Supply Line
- Clipped to the left fuel delivery unit
- Left Fuel Delivery Unit
- with Fuel Pump - G23-
Version 2: Vehicles with 3.0L (V6)/4.2L (V8) Engine from 06/2008:
- Fuel tank is divided into a left and a right chamber. Use a suction jet pump -3- to move fuel from left fuel tank chamber to the right one for the fuel delivery unit baffle housing -1-.
- The suction jet pump functions according to a simple physics principle: An injector in the suction jet pump -3- compresses the suction jet of the electrical fuel pump's preliminary stage -1-, which accelerates the suction jet. This acceleration causes the surrounding fuel to be drawn in and be forced to the baffle housing of the fuel delivery unit.
- Fuel Delivery Unit
- With Transfer Fuel Pump -G6-
- Suction Jet Pipe
- To disconnect, press release button on connection piece.
- Suction Jet Pump
- Fuel Supply Line
- clipped on the right fuel delivery unit