Suction Jet Pumps Assembly Overview
Suction Jet Pumps
Fuel tank is divided into a left and a right chamber. To transport fuel volume from left to right fuel tank chamber to fuel delivery unit baffle housing - 1 - 2 so-called suction jet pumps - 9 - and - 10 - are used.
1 Fuel Delivery Unit
• With transfer fuel pump (G6) and suction jet pump
• Removing and installing, refer to => [ Fuel Delivery Unit ] Fuel Delivery Unit
• After installing, fuel vehicle with at least 5 liters of fuel
2 Suction Jet Pipe
• From the fuel pump to the locking flange
• To disconnect, press release button on connection piece
3 Locking Flange with Locking Ring
• Use wrench (T10202) for removal and installation
• 125 Nm
4 Suction Jet Pipe
• From the fuel pump to the left suction jet pumps
• To disconnect, press release button on connection piece
5 Fuel Supply Line
• Installed depending on version
• From the left rear suction jet pump to the fuel delivery unit
• Do not kink
• To disconnect, press release button on connection piece
6 Fuel Supply Line
• From the left front suction jet pump to the fuel delivery unit
• Do not kink
• To disconnect, press release button on connection piece
7 Fuel Supply Line
• To fuel filter
• On the 10-cylinder engine with a non-return valve
• To disconnect, press release button on connection piece
8 Separating Point
• Press the release button on the connector piece to separate
9 Left Rear Suction Jet Pump
• Clipped in at fuel tank
• Cannot be replaced separately
• The version depends on the construction
10 Left Front Suction Jet Pump
• Clipped in at fuel tank
• Cannot be replaced separately
• The version depends on the construction
11 Locking Flange with Locking Ring
• Use wrench (T10202) for removal and installation
• 125 Nm
12 Suction Jet Pump
• In the right fuel tank chamber
• The version depends on the construction
Function of the Suction Jet Pumps
Function of the suction jet pumps is based on a simple physical principle: a suction jet from the electrical fuel pump is compressed by a nozzle in the suction jet pump and is thereby accelerated. This acceleration causes the surrounding fuel to be drawn in and be forced to the baffle housing of the fuel delivery unit.