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Home >> Audi >> 2009 >> Q7 4.2 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 15 (3.0L - Fuel Supply System - Engine Code(S): CATA & CNRB) >> 20 Fuel Supply >> Auxiliary Fuel Pump >> Auxiliary Fuel Pump - V393-, REMOVING AND INSTALLING >> Removing

Auxiliary Fuel Pump - V393-, REMOVING AND INSTALLING: Removing

WARNING: This page is about a different variant/trim than selected.
Fig 1: Identifying Connector -4- And Auxiliary Fuel Pump -2-
GWWA20-10509Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the connector -4- on the Auxiliary Fuel Pump -V393- -2-.

WARNING:

Very hot fuel can burn your skin.

  • In extreme cases, the fuel lines and the fuel itself in vehicles with a common rail engine can be as hot as 100 °C (212 °F) after the engine has been turned off. Let the fuel cool down before opening any line connections otherwise there is a danger of scalding.
  • Wear safety gloves
  • Wear protective eyewear.

There is a risk of injury because the fuel is under pressure.

  • To reduce pressure in fuel system, lay a clean cloth around the connector and carefully loosen connector.
NOTE:

Place a cloth underneath to catch any leaking fuel.

-- Clamp off the fuel hoses -1 and 3- with hose clamps Hose Clamps - Up To 25mm3094.

-- Disconnect the fuel hoses from the Auxiliary Fuel Pump -V393-.

-- Spray the rubber knobs -2 and 4- on the rubber bracket for the Auxiliary Fuel Pump -V393- -3- with a silicone-free lubricating spray.

Fig 2: Identifying Rubber Nobs -2- And -4- On Rubber Bracket For Auxiliary Fuel Pump -3-
GWWA20-10510Courtesy of AUDI OF AMERICA, LLC

-- Remove the rubber knobs from the Auxiliary Fuel Pump -V393- bracket -1-.