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my Volkswagen Golf MK7 (2015-2019) keyless entry isn't working, what to do - Volkswagen Golf
Home/Cars/Volkswagen/Golf/MK8.5 (2024-Present)/my Volkswagen Golf MK7 (2015-2019) keyless entry isn't working, what to do

my Volkswagen Golf MK7 (2015-2019) keyless entry isn't working, what to do

Volkswagen Golf MK8.5 (2024-Present)

Error Codes
1-3 hours
Time
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
3 min read
544 words

Problem Statement

Learn how to diagnose and fix keyless entry issues in Volkswagen Golf MK7 (2015-2019). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component
Electrical
Estimated Time
1-3 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

  • •Disconnect the battery before working on electrical systems to avoid short circuits or electrical shock.

Symptoms

  • •Key fob does not unlock or lock the doors
  • •No response when pressing the key fob buttons
  • •Indicator lights on the key fob are not illuminated
  • •Vehicle doors do not respond to the proximity sensor
  • •Check engine light illuminated

Diagnostic Steps

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

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
  • •Flathead screwdriver
  • •Socket set
  • •Trim removal tools

Parts Required

  • •Key fob battery (CR2032)
  • •Door lock actuator (if damaged)
  • •Fuse for keyless entry system (if blown)

Additional Information

Affected Component
Electrical
Estimated Time
1-3 hours
Difficulty
medium
Severity
medium
Tools Required
4 items
Parts Required
3 items

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Solution
1. Preparation
  • Gather necessary tools and parts.
  • Ensure the vehicle is in a safe, well-lit environment.
  • Disconnect the vehicle battery to prevent electrical short circuits.
2. Replace Key Fob Battery
  • Sub-steps:
    • Open the key fob using a small flathead screwdriver.
    • Remove the old battery (typically CR2032) and replace it with a new one, ensuring correct polarity.
    • Reassemble the key fob securely.
3. Inspect Door Lock Actuators
  • Sub-steps:
    • Remove the door panel using a socket set and trim removal tools.
    • Visually inspect the door lock actuator for physical damage or disconnection.
    • If damaged, replace the actuator with a new part by disconnecting the wiring harness and removing the screws securing it.
4. Check Wiring and Antenna
  • Sub-steps:
    • Trace the wiring from the keyless entry antenna located near the rearview mirror to ensure there are no breaks or corrosion.
    • If any damaged wires are found, repair them with appropriate connectors or replace the wiring harness.
    • Ensure the antenna is securely connected.
5. Replace Fuse
  • Sub-steps:
    • Locate the fuse box (typically under the dashboard or in the engine compartment).
    • Refer to the owner's manual to identify the fuse for the keyless entry system.
    • Remove the blown fuse and replace it with a new one of the same amperage.