my Volkswagen Golf's rear wiper doesn't work what to check

Volkswagen Golf Eighth Generation (2020-present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

527 words

Problem Statement

Learn how to diagnose and fix the rear wiper not working on your Volkswagen Golf. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

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

Symptoms

•Rear wiper does not activate when switch is engaged
•Rear wiper motor makes no sound when operated
•Rear wiper blade does not move at all
•Washer fluid does not spray onto the rear window
•Blown fuse for the rear wiper circuit (in some cases)

Diagnostic Steps

1
Inspect the rear wiper fuse in the fuse box for any signs of damage or failure.
2
Use a multimeter to check for voltage at the rear wiper motor connector when the wiper switch is activated.
3
Examine the wiper switch for continuity and functionality using a multimeter.
4
Check the wiring between the wiper switch and the motor for any visible damage or corrosion.
5
Test the rear wiper motor directly by applying battery voltage to it to see if it operates.
6
Inspect the linkage mechanism for any obstructions or damage that may prevent movement.

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

•Screwdriver set
•Multimeter
•Socket set
•Fuse puller

Parts Required

•Rear wiper motor (if replacement is needed)
•Wiper blade (if worn)

Related Faults

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Diagnostic Steps

1
Inspect the rear wiper fuse in the fuse box for any signs of damage or failure.
2
Use a multimeter to check for voltage at the rear wiper motor connector when the wiper switch is activated.
3
Examine the wiper switch for continuity and functionality using a multimeter.
4
Check the wiring between the wiper switch and the motor for any visible damage or corrosion.
5
Test the rear wiper motor directly by applying battery voltage to it to see if it operates.
6
Inspect the linkage mechanism for any obstructions or damage that may prevent movement.

Solution

1. Preparation

Gather tools: screwdriver set, multimeter, socket set, and a replacement fuse if necessary.
Disconnect the negative battery terminal to ensure safety during repairs.

2. Inspect and Replace Fuse

Locate the fuse box and identify the fuse for the rear wiper.
Remove the fuse using a fuse puller or needle-nose pliers.
Inspect the fuse for continuity; replace it if it is blown with a new fuse of the same amperage.

3. Test and Replace Wiper Motor

Reconnect the battery and activate the rear wiper switch.
Use a multimeter to check for voltage at the motor connector.
- If voltage is present, proceed to replace the rear wiper motor.
- If no voltage, further inspect the wiring and switch.
To replace the motor:
- Remove the rear wiper arm by loosening the retaining nut with a socket set.
- Disconnect the motor wiring harness.
- Remove the motor mounting screws and take out the old motor.
- Install the new motor by reversing the removal steps, ensuring secure connections.

4. Inspect Linkage Mechanism

If the motor is operational but the wiper does not move, inspect the linkage connecting the motor to the wiper arm.
Remove any obstructions and lubricate the linkage if necessary.
Ensure that all components are securely fastened.