Volkswagen Golf MK7.5 (2020-Present) wipers won't turn off, how to fix?

Volkswagen Golf MK7.5 (2020-Present)

Error Codes

1-3 hours

Time

medium

Difficulty

medium

Severity

3 min read

562 words

Problem Statement

Learn how to diagnose and fix wipers that won't turn off in Volkswagen Golf MK7.5. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Electrical

Estimated Time

1-3 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect battery before working on electrical systems.
•Allow the engine to cool before inspecting the wiper motor.

Symptoms

•Wipers continuously run even when the switch is turned off
•Wiper control stalk does not respond to adjustments
•Possible intermittent wiper function failure
•Wipers may operate at an incorrect speed
•Potential dashboard warning light related to electrical issue

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to check for any related fault codes.
2
Inspect the wiper control stalk for physical damage or wear.
3
Check the wiper motor connections and wiring for corrosion or loose connections.
4
Test the wiper relay for proper operation using a multimeter.
5
Verify the functionality of the body control module (BCM) as it controls the wiper system.
6
Check for any blown fuses related to the wiper system.

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
•Screwdriver set
•Trim removal tool
•Multimeter
•Relay puller (optional)
•Socket set
•Wire brush
•Electrical connector cleaner

Parts Required

•Wiper control stalk (if faulty)
•Wiper relay (if faulty)
•Wiper motor (if faulty)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to check for any related fault codes.
2
Inspect the wiper control stalk for physical damage or wear.
3
Check the wiper motor connections and wiring for corrosion or loose connections.
4
Test the wiper relay for proper operation using a multimeter.
5
Verify the functionality of the body control module (BCM) as it controls the wiper system.
6
Check for any blown fuses related to the wiper system.

Solution

1. Preparation

Ensure the vehicle is parked on a level surface.
Disconnect the negative battery terminal to prevent electrical shock or short circuits.

2. Inspect and Replace Wiper Control Stalk

Tools Required: Screwdriver set, trim removal tool
Remove the steering column cover by unscrewing the screws and gently prying it off.
Disconnect the electrical connector from the wiper control stalk.
Remove the wiper control stalk from the steering column.
Install the new wiper control stalk and reconnect the electrical connector.

3. Check and Replace Wiper Relay

Tools Required: Multimeter, relay puller (optional)
Locate the fuse box, typically under the dashboard or in the engine compartment.
Identify the wiper relay using the fuse box diagram.
Remove the relay and test it with a multimeter to check for continuity.
If faulty, replace the relay with a new one of the same type.

4. Inspect Wiper Motor and Wiring

Tools Required: Socket set, wire brush, electrical connector cleaner
Locate the wiper motor, usually positioned at the base of the windshield.
Inspect the wiring harness for damage, corrosion, or loose connections.
Clean any corroded contacts and ensure all connections are secure.
If the wiper motor shows signs of failure, replace it with a new unit.

5. Reassembly

Reattach the steering column cover and secure it with screws.
Reconnect the negative battery terminal.