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How to change fuel filter on AUDI A6 C4 Saloon (4A2) – replacement guide
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Recommended replacement interval for the part category Fuel filter : 30000 km
Important!
This replacement procedure can be used for:
AUDI A6 Saloon (4A2, C4) S6 Plus quattro … View more
The steps may slightly vary depending on the car design.
AUDI A6 Saloon (4A2, C4) S6 Plus quattro … View more
The steps may slightly vary depending on the car design.
This video shows the replacement procedure of a similar car part on another vehicle
All the parts you need to replace – Fuel Filter for A6 Saloon (4A2, C4) and other AUDI models
Fuel filter
Alternative products

Wire brush
WD-40 spray
Torque wrench
Combination spanner #17
Combination spanner #19
Combination spanner #22
Drive socket # 10
Ratchet wrench
Fluid container
Replacement: fuel filter – AUDI A6 (4A, C4). AUTODOC experts recommend:
- Ensure adequate ventilation of the workplace. Fuel vapors are poisonous.
- All work should be done with the engine stopped.
Replacement: fuel filter – AUDI A6 (4A, C4). Take the following steps:
- Step 1Lift the car using a jack or place it over an inspection pit.Step 2Unscrew the fastener attaching the fuel supply line to the fuel filter housing. Use a combination spanner #19. Use a combination spanner #22.
- Step 3Prepare a container for fluids.Step 4Disconnect the pipe from the fuel filter.Replacement: fuel filter – AUDI A6 (4A, C4). Tip:Be careful! Fuel may leak from the filter housing and hoses.
- Step 5Unscrew the fastener attaching the fuel supply line to the fuel filter housing. Use a combination spanner #17. Use a combination spanner #22.
- Step 6Disconnect the pipe from the fuel filter.
- Step 7Clean the fuel filter bracket. Use a wire brush. Use WD-40 spray.Step 8Unscrew the fuel filter bracket fixing bolts. Use a drive socket #10. Use a ratchet wrench.
- Step 9Remove the fuel filter together with its bracket.Step 10Remove the fuel filter.
- Step 11Install a new fuel filter.AUTODOC recommends:Make sure that the fuel filter is positioned correctly. Consider the fuel flow direction mark.During installation, take care to prevent dust and dirt from getting into the fuel filter housing.AUDI A6 (4A, C4) – It's important to only use high-quality filters.
- Step 12Install the new fuel filter together with its bracket.
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