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Home/Cars/Audi/A6/C7 (2011-2018)/Fuel filter dirty Audi A6 C7

Fuel filter dirty Audi A6 C7

Audi A6 C7 (2011-2018)

Severity: mediumDifficulty: mediumError Code: P00872-3 hours
3 min read
561 words

Problem Statement

Learn how to diagnose and replace a dirty fuel filter on an Audi A6 C7 (2011-2018). Follow our step-by-step guide to resolve engine performance issues.

Error Code
P0087
Component
fuel filter
Repair Time
2-3 hours

Symptoms

  • •Hesitation during acceleration
  • •Reduced power
  • •Difficulty starting the engine
  • •Engine stalls or sputters at high speeds
  • •Unusual fuel smell

Diagnostic Steps

  1. 1Use an OBD-II scanner to check for any fuel-related error codes
  2. 2Perform a fuel pressure test
  3. 3Inspect fuel lines for any visible leaks or damage

Solution

Diagnosing and Replacing a Dirty Fuel Filter on an Audi A6 C7 (2011-2018)

Tools Required

  • OBD-II Scanner
  • Fuel Pressure Gauge
  • Wrench Set
  • Screwdriver Set
  • Safety Glasses and Gloves
  • Drain Pan
  • Replacement Fuel Filter (compatible with Audi A6 C7)
  • Jack and Jack Stands

Repair Instructions

Preparation

  1. Safety First:

    • Wear safety glasses and gloves.
    • Work in a well-ventilated area away from open flames or sparks.
  2. Relieve Fuel System Pressure:

    • Locate the fuel pump fuse in the fuse box and remove it.
    • Start the engine and let it run until it stalls.
    • Attempt to start the engine a few more times to ensure pressure is relieved.
  3. Raise the Vehicle:

    • Use a jack to lift the front of the car.
    • Secure the car with jack stands for safety.

Replacing the Fuel Filter

  1. Locate the Fuel Filter:

    • The fuel filter on the Audi A6 C7 is typically located near the fuel tank under the vehicle.
  2. Disconnect the Battery:

    • To prevent electrical shocks, disconnect the negative battery terminal.
  3. Remove the Old Fuel Filter:

    • Place a drain pan under the fuel filter to catch any leaking fuel.
    • Use a wrench to loosen the fuel filter fittings.
    • Carefully disconnect the fuel lines from the filter, noting the direction of flow indicated by an arrow on the filter.
    • Remove any mounting brackets or screws holding the fuel filter in place.
  4. Install the New Fuel Filter:

    • Position the new fuel filter in place, ensuring the arrow indicating flow direction is correct.
    • Reconnect the fuel lines securely to the new filter.
    • Reattach any mounting brackets or screws.
  5. Reconnect the Battery:

    • Reconnect the negative battery terminal.

Final Steps

  1. Reinstall the Fuel Pump Fuse:

    • Place the fuel pump fuse back into the fuse box.
  2. Lower the Vehicle:

    • Remove the jack stands and carefully lower the car using the jack.
  3. Test the System:

    • Start the engine and check for leaks.
    • Monitor the fuel pressure to ensure it meets specifications.
  4. Test Drive:

    • Take the vehicle for a test drive to confirm that engine performance issues are resolved.

Note

  • Always dispose of the old fuel filter and any spilled fuel according to local environmental regulations.
  • If symptoms persist after replacement, further diagnostics may be necessary to check the fuel pump or injectors.

Verification

After completing the repair, verify that the issue has been resolved:

  • Test the affected component to ensure it functions correctly
  • Check for any error codes or warning lights
  • Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

  • •Follow the manufacturer's recommended maintenance schedule
  • •Address warning signs early before they develop into major issues
  • •Use quality parts and fluids recommended for your vehicle
  • •Keep detailed records of all repairs and maintenance

Tools & Equipment Required

  • OBD-II Scanner
  • Fuel Pressure Gauge
  • Wrench Set
  • Screwdriver Set
  • Safety Glasses and Gloves
  • Drain Pan
  • Replacement Fuel Filter
  • Jack and Jack Stands

Additional Information

Error CodeP0087
Component

fuel filter

Repair Time

2-3 hours

Difficulty

medium

Severity

medium

Tools

8 items

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