FAULTBASE
NEWSASKCars
© 2025 FAULTBASE
All rights reserved.
v2.0.0 • Production
ContactPrivacyImpressum
Home/Cars/Volkswagen/Golf/MK7 (2015-2019)/how to fix P0455 code on Volkswagen Golf MK6 (2009-2014)

how to fix P0455 code on Volkswagen Golf MK6 (2009-2014)

Volkswagen Golf MK7 (2015-2019)

Severity: mediumDifficulty: mediumError Code: P04552-4 hours
3 min read
551 words

Problem Statement

Learn how to diagnose and fix P0455 fuel system issue in Volkswagen Golf MK6 (2009-2014). Step-by-step guide with diagnostic procedures and repair instructions.

Error Code
P0455
Component
Fuel System
Repair Time
2-4 hours

Safety Warnings

  • ⚠Disconnect the battery before working on electrical components.
  • ⚠Allow the engine to cool before inspecting the EVAP system.

Symptoms

  • •Check engine light illuminated
  • •Fuel odor near the vehicle
  • •Decreased fuel economy
  • •Failure during emissions testing
  • •Hissing sound from the fuel tank area when filled

Diagnostic Steps

  1. 1Scan for error codes using an OBD-II scanner to confirm P0455.
  2. 2Inspect the gas cap for cracks or improper sealing.
  3. 3Visually inspect EVAP hoses and connections for damage or disconnections.
  4. 4Check the EVAP purge valve for proper operation.
  5. 5Test the EVAP canister for blockages or damage.
  6. 6Perform a smoke test to identify any leaks in the system.

Solution

Solution

1. Preparation

  • Gather all necessary tools and parts.
  • Disconnect the battery to prevent any electrical issues.
  • Ensure the vehicle is parked on a flat surface and the engine is cool.

2. Inspect and Replace Gas Cap

  • Tools Required: None
  • Inspect the gas cap for any signs of wear, cracks, or damage.
  • If damaged, replace with a new gas cap that meets OEM specifications.

3. Inspect and Replace EVAP Hoses

  • Tools Required: Pliers, socket set
  • Remove any clips securing the EVAP hoses.
  • Inspect each hose for cracks, kinks, or disconnections.
  • If damaged, replace with new hoses.
  • Reattach hoses securely and ensure there are no leaks.

4. Test and Replace EVAP Purge Valve

  • Tools Required: Multimeter, socket set
  • Locate the EVAP purge valve (usually near the intake manifold).
  • Disconnect the electrical connector and test with a multimeter for proper resistance.
  • If the valve is faulty, replace it with a new one, ensuring correct orientation and secure connections.

5. Inspect and Replace EVAP Canister

  • Tools Required: Socket set, screwdriver
  • Locate the EVAP canister (commonly found under the vehicle near the fuel tank).
  • Inspect for cracks or blockages; if damaged, replace the canister.
  • Reconnect all hoses and electrical connections as per manufacturer specifications.

6. Clear Codes and Test

  • Tools Required: OBD-II scanner
  • Once repairs are complete, reconnect the battery.
  • Use the OBD-II scanner to clear the P0455 code.
  • Start the vehicle and let it run for a few minutes to ensure no further codes appear.

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
  • Multimeter
  • Socket set
  • Pliers
  • Screwdriver

Parts Required

  • New gas cap
  • EVAP hoses (if damaged)
  • EVAP purge valve (if faulty)
  • EVAP canister (if damaged)

Additional Information

Error CodeP0455
Component

Fuel System

Repair Time

2-4 hours

Difficulty

medium

Severity

medium

Tools

5 items

Parts

4 items

Related Faults

Discover similar issues

  1. why does my Volkswagen Golf MK7 (2015-2019) engine vibrate at idle?

    Learn to diagnose and fix engine vibrations at idle in Volkswagen Golf MK7 (2015-2019). Step-by-step guide with symptoms, diagnostic steps, and repair...

    Component:Engine
    Symptoms
    • •Engine vibrations noticeable at idle
    • •Check engine light illuminated
    • +{count} more
  2. why is my Volkswagen Golf MK7 (2015-2019) check engine light flashing?

    Learn how to diagnose and fix a flashing check engine light on your Volkswagen Golf MK7 (2015-2019). Step-by-step guide with symptoms and solutions.

    Component:Engine
    Symptoms
    • •Check engine light is flashing
    • •Engine misfiring or rough idle
    • +{count} more
  3. how to check for coolant leaks in my Volkswagen Golf MK7 (2015-2019)

    Learn how to check for coolant leaks in your Volkswagen Golf MK7 (2015-2019). Step-by-step guide with symptoms, diagnostic steps, and repair instructi...

    Component:Cooling System
    Symptoms
    • •Coolant level consistently dropping without visible external leaks
    • •Steam or vapor coming from under the hood
    • +{count} more
  4. how to check the spark plugs on a Volkswagen Golf MK7 (2015-2019)?

    Learn how to check and replace spark plugs on Volkswagen Golf MK7 (2015-2019). Step-by-step guide with diagnostic steps and safety tips.

    Component:Engine
    Symptoms
    • •Engine misfires
    • •Rough idle
    • +{count} more
  5. how to resolve the P0011 code in my Volkswagen Golf MK7 (2015-2019)?

    P0011

    Learn how to diagnose and fix P0011 VVT issues in Volkswagen Golf MK7 (2015-2019). Step-by-step guide with diagnostic procedures and repair instructio...

    Component:Engine
    Symptoms
    • •Check engine light illuminated
    • •Rough idle
    • +{count} more
  6. how to replace the fuel filter in a Volkswagen Golf MK7 (2015-2019)?

    Step-by-step guide to replace the fuel filter in a Volkswagen Golf MK7 (2015-2019). Learn symptoms, diagnostic steps, and safety precautions.

    Component:Fuel System
    Symptoms
    • •Engine stalling or hesitation during acceleration
    • •Difficulty starting the engine
    • +{count} more

Share this solution

Comments

Sign in to share your thoughts

Sign In

No comments yet

Be the first to share your thoughts

Back to Generation