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Home/Cars/Volkswagen/Golf/MK7.5 (2020-Present)/how to fix Volkswagen Golf Seventh Generation (2013-2020) fuel pump issues

how to fix Volkswagen Golf Seventh Generation (2013-2020) fuel pump issues

Volkswagen Golf MK7.5 (2020-Present)

Severity: highDifficulty: medium2-4 hours
3 min read
493 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to diagnose and fix fuel pump issues in Volkswagen Golf 7 (2013-2020). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Component
Fuel System
Repair Time
2-4 hours

Safety Warnings

  • ⚠Disconnect the battery before working on the fuel system.
  • ⚠Allow the fuel system to depressurize before disconnecting lines.
  • ⚠Work in a well-ventilated area to avoid inhaling fuel vapors.

Symptoms

  • •Engine cranks but does not start
  • •Intermittent stalling while driving
  • •Loss of power during acceleration
  • •Check engine light illuminated
  • •Unusual humming noise from the fuel tank
  • •Poor fuel economy

Diagnostic Steps

  1. 1Scan the vehicle's OBD-II system for error codes related to the fuel pump or fuel system.
  2. 2Check the fuel pump relay for proper operation using a multimeter.
  3. 3Inspect the fuel pump fuse for continuity.
  4. 4Measure the fuel pressure at the fuel rail using a fuel pressure gauge.
  5. 5Visually inspect the fuel lines for any signs of leaks or damage.
  6. 6Test the fuel pump for electrical issues by checking the voltage and ground at the pump connector.

Solution

Solution

1. Preparation

  • Gather necessary tools and parts.
  • Disconnect the vehicle's battery to ensure safety.
  • Relieve fuel system pressure by removing the fuel pump fuse and running the engine until it stalls.

2. Access the Fuel Pump

  • Remove the rear seat cushion or access cover to reach the fuel pump module.
  • Disconnect any electrical connectors and fuel lines attached to the fuel pump.

3. Remove the Fuel Pump

  • Unscrew the retaining ring or bolts holding the fuel pump in place.
  • Carefully lift the fuel pump module out of the tank, ensuring the fuel sender unit remains attached.

4. Inspect and Replace

  • Inspect the fuel pump for wear or damage, including the strainer and rubber seals.
  • If replacement is needed, install the new fuel pump by reversing the removal steps.
  • Ensure all seals and gaskets are properly replaced to prevent leaks.

5. Reassemble and Test

  • Reattach the fuel lines and electrical connectors to the fuel pump.
  • Reinstall the access cover and rear seat cushion.
  • Reconnect the battery and start the engine to check for proper operation.

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
  • Fuel pressure gauge
  • Socket set
  • Torque wrench

Parts Required

  • New fuel pump assembly
  • Fuel pump strainer
  • Fuel line seals/gaskets

Additional Information

Component

Fuel System

Repair Time

2-4 hours

Difficulty

medium

Severity

high

Tools

5 items

Parts

3 items

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