Recommended replacement interval for the part category Fuel filter : 30000 km

Important!

This replacement procedure can be used for:
AUDI A6 Avant (4B5, C5) 2.4, AUDI A6 Avant (4B5, C5) 2.4 quattro … View more

The steps may slightly vary depending on the car design.

How to change fuel filter AUDI A6 C5 Avant [TUTORIAL AUTODOC]

All the parts you need to replace – Fuel Filter for A6 Avant (4B5, C5) and other AUDI models

Fuel filter

AUDI A6 Avant (4B5, C5) 2.4

AUDI A6 Avant (4B5, C5) 2.4 quattro

Replacement: fuel filter – Audi A6 C5 Avant. List of the tools you'll need:

                        Nylon cleaning brush
                      
                        All-purpose cleaning spray
                      
                        Drive socket # 7
                      
                        Drive socket # 10
                      
                        Fluid container
                      
                        Ratchet wrench
                      
                        Wheel chock

Buy tools

Replacement: fuel filter – Audi A6 C5 Avant. AUTODOC experts recommend:

Ensure adequate ventilation of the workplace. Fuel vapors are poisonous.
Please note: all work on the car – Audi A6 C5 Avant – should be done with the engine switched off.

Carry out replacement in the following order:

Step 1

Open the fuel door.
Step 2

Unscrew the fuel filler cap.
Step 3

Secure the wheels with chocks.

Step 4

Lift the car using a jack or place it over an inspection pit.
Step 5

Unscrew the fasteners of the plastic car body protective cover.Use a drive socket #10.Use a ratchet wrench.
Step 6

Remove the plastic car body protective cover.
Step 7

Prepare a container for fluids.
Step 8

Clean the fuel lines.Use a nylon cleaning brush. Use all-purpose cleaning spray.
Step 9

Loosen the fastening clamps of the fuel filter pipes.Use a drive socket #7.Use a ratchet wrench.
Step 10

Unscrew the fuel filter bracket.Use a drive socket #10.Use a ratchet wrench.
Step 11

Detach the tubes from the fuel filter.
Step 12

Remove the fuel filter.

Replacement: fuel filter – Audi A6 C5 Avant. Professionals recommend:

Be careful! Fuel may leak from the filter housing and hoses.
Step 13

Remove the fuel filter fastening bracket.

Replacement: fuel filter – Audi A6 C5 Avant. Tip:

Be careful! Fuel may leak from the filter housing and hoses.
Step 14

Install the fuel filter fastening bracket.
Step 15

Install a new fuel filter.

Replacement: fuel filter – Audi A6 C5 Avant. Tip from AUTODOC:

Remember, it is important not to mix up the input and output of the filter. Arrows on the filter indicate the direction of fuel flow.During installation, take care to prevent dust and dirt from getting into the fuel filter housing.Attention! Use quality filters – Audi A6 C5 Avant.
Step 16

Screw in the fuel filter mounting bracket.Use a drive socket #10.Use a ratchet wrench.
Step 17

Clean the fuel lines.Use all-purpose cleaning spray.
Step 18

Attach the tubes to the fuel filter.
Step 19

Tighten the fastening clamps of the fuel filter pipes.Use a drive socket #7.Use a ratchet wrench.
Step 20

Clean the fuel lines.Use all-purpose cleaning spray.
Step 21

Reinstall the plastic car body protective cover.
Step 22

Screw in the fasteners of the plastic car body protective cover.Use a drive socket #10.Use a ratchet wrench.
Step 23

Lower the car.
Step 24

Remove the jacks and chocks.

Step 25

Tighten the fuel filler cap.
Step 26

Close the fuel door.

Replacement: fuel filter – Audi A6 C5 Avant. Tip:

Before starting off, switch the ignition on and off several times. This should be done to activate the fuel pump to make it pump fuel through the fuel system.

Step 27

Run the engine for a few minutes.This is necessary in order to make sure that the component operates properly.

Step 28

Shut off the engine.

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