Audi Workshop Service and Repair Manuals > A2 > Power unit | Fuel supply system, diesel engines | Fuel supply, gas operation | Servicing fuel filter | Removing and installing fuel filter on vehicles up to 04.2002

Removing and installing fuel filter on vehicles up to 04.2002

Special tools and workshop equipment required

t	Hose clip pliers -V.A.G 1921-

Drip tray

Removing

–	Remove heat shield on fuel tank (left-side) -arrows-.

–	Unscrew nuts -arrows- and remove heat shield -2-.

–	Detach rear silencer from both rubber mountings (left-side).

–	Remove heat shield -1-.

–	Re-attach rear silencer.

Note

Re-attach silencer immediately to prevent damage to flexible joint.

–	Place drip tray below underbody.

WARNING

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.

–	Disconnect fuel hoses -3- and -4- by pressing release tabs.

–	Unscrew nut -5- on bracket.

–	Disengage bracket and lower filter -1- slightly.

–	Detach retaining clip -2- and remove regulating valve with fuel pipes connected.

–	Move fuel pipes from old to new fuel filter.

Note

Renew fuel pipes/hoses if they are porous.

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.

–	Fill new fuel filter with clean diesel fuel. This ensures that engine starts quickly.

–	Pay attention to O-ring in filter housing when fitting regulating valve.

–	Carefully engage retaining clip.

Note

Flow direction is marked by arrows (do not interchange connections).

–	Start the engine and check fuel system for leaks (visual check).

Tightening torque

Component			Nm
Nut for filter bracket			8

Audi Workshop Service and Repair Manuals