audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Servicing fuel filter > < Servicing fuel cooler
Removing and installing fuel cooler
Removing and installing fuel cooler
Special tools and workshop equipment required
   
t  Hose clip pliers -V.A.G 1275-
t  Drip tray
  W00-0451
Removing
Observe rules for cleanliness → Chapter.
  Note
The fuel cooler is located under the vehicle (right-side).
–  Remove cover panel at rear right of fuel tank -arrows-.
  A20-0792
–  Remove underbody cover (right-side) -2- and the short cover panel behind it.
  Note
Disregard -item 1-.
–  Place drip tray below underbody.
Vehicles with 4-cylinder engine:
  WARNING
t  The fuel system is pressurised. Before opening the system place a clean cloth around the connection. Then release pressure by carefully loosening the connection.
t  In extreme cases the fuel lines and the fuel can reach a temperature of 100 °C on vehicles with unit injector engine. Allow the fuel to cool down before disconnecting the lines - danger of scalding.
t  Wear protective gloves.
t  Wear safety goggles.
  A20-0777
–  Disconnect supply pipe -1- (black) and return pipe -2- (blue) from the front right of the fuel tank by pressing the release tabs.
–  Catch escaping fuel.
  A20-10028
Vehicles with 6-cylinder engine:
  WARNING
The fuel system is pressurised. Before opening the system place a clean cloth around the connection. Then release pressure by carefully loosening the connection.
–  Disconnect fuel lines -1- and -2- at rear of fuel cooler.
–  Catch escaping fuel.
  A20-0860
All models:
–  Disconnect fuel return pipe -2- and fuel supply pipe -3- at front of fuel cooler -4-.
–  Unscrew nuts -1- (3x) and take out fuel cooler.
Installing
Installation is carried out in the reverse order; note the following:
  Note
Secure all hose connections with the correct type of hose clips (same as original equipment) → Parts catalogue.
Tightening torque
  A20-0858
ComponentNm
Fuel cooler to underbody5

   

Servicing fuel filter > < Servicing fuel cooler