how can I fix the rear window wiper on my Volkswagen Golf MK7 (2015-2019)

Volkswagen Golf MK8.5 (2024-Present)

Error Codes

1-3 hours

Time

medium

Difficulty

medium

Severity

4 min read

602 words

Problem Statement

Learn how to diagnose and fix rear window wiper issues on 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 components to avoid shocks or shorts.
•Ensure the vehicle is securely parked and on a level surface before beginning repairs.

Symptoms

•Rear wiper does not activate when switched on
•Wiper arm moves intermittently or erratically
•Wiper motor makes noise but wiper arm does not move
•No spray from the rear washer fluid
•Rear wiper operates continuously without stopping

Diagnostic Steps

1
Inspect the rear wiper switch for proper operation.
2
Check the fuse for the rear wiper motor in the fuse box.
3
Test the rear wiper motor with a multimeter to ensure it is receiving power.
4
Examine the wiring harness for any visible damage or corrosion.
5
Inspect the wiper arm and blade for any physical obstructions or damage.
6
Check the rear washer fluid reservoir and pump for functionality.

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

•Multimeter
•Socket set
•Fuse puller
•Wire brush
•Electrical cleaner
•Wiper arm puller

Parts Required

•Rear wiper motor
•Rear wiper arm
•Fuse

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Diagnostic Steps

1
Inspect the rear wiper switch for proper operation.
2
Check the fuse for the rear wiper motor in the fuse box.
3
Test the rear wiper motor with a multimeter to ensure it is receiving power.
4
Examine the wiring harness for any visible damage or corrosion.
5
Inspect the wiper arm and blade for any physical obstructions or damage.
6
Check the rear washer fluid reservoir and pump for functionality.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface, and the ignition is turned off.
Disconnect the battery to prevent any electrical shorts.

2. Check and Replace Fuse

Tools Required: Fuse puller or flathead screwdriver
Locate the fuse box; refer to the owner’s manual for the exact location of the rear wiper fuse.
Remove the fuse for the rear wiper using a fuse puller.
Inspect the fuse for continuity; replace it if blown with a fuse of the same amperage.

3. Test and Replace the Rear Wiper Motor

Tools Required: Multimeter, socket set
Reconnect the battery and turn on the ignition.
Use a multimeter to check the voltage at the rear wiper motor connector while operating the wiper switch.
If there is voltage but the motor does not operate, remove the wiper arm by unscrewing the retaining nut.
Unbolt the motor from its mounting and disconnect the wiring plug.
Install the new motor by reversing the removal steps, ensuring it is secured and properly connected.

4. Check and Clean Wiring Harness

Tools Required: Wire brush, electrical cleaner, heat shrink tubing
Inspect the wiring harness that connects to the rear wiper motor for any frayed wires or corrosion.
Clean any corroded connections with electrical cleaner and a wire brush.
If any wires are damaged, repair them with solder and use heat shrink tubing for insulation.

5. Inspect and Replace Wiper Arm

Tools Required: Wiper arm puller (if necessary)
If the wiper arm is damaged or loose, remove it using the appropriate tool.
Replace it with a new wiper arm if needed, ensuring it is securely fastened.