how to fix the rear wiper on my Volkswagen Tiguan Second Generation (2018-present) not working

Volkswagen Tiguan 2nd Gen (2018-Present)

Error Codes

1-3 hours

Time

medium

Difficulty

medium

Severity

3 min read

549 words

Problem Statement

Learn how to diagnose and fix the rear wiper not working on Volkswagen Tiguan (2018-present). Step-by-step guide with tools and tips included.

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 shorts or shocks.

Symptoms

•Rear wiper does not activate when the switch is engaged
•Rear wiper motor makes no sound
•Rear wiper blade does not move at all
•Washer fluid does not spray onto the rear window
•No indicator lights or messages on the dashboard

Diagnostic Steps

1
Check the rear wiper switch for functionality using a multimeter.
2
Inspect the fuse box for a blown fuse related to the rear wiper.
3
Verify the rear wiper motor's electrical connections for corrosion or loose wires.
4
Test the rear wiper motor directly by applying 12V power to it.
5
Inspect the rear wiper linkage for any obstructions or damage.
6
Check the washer fluid reservoir to ensure it has fluid and inspect the spray nozzle for clogs.

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

•Socket set
•Multimeter
•Wire connectors
•Flathead screwdriver

Parts Required

•Rear wiper motor (if faulty)
•Wiper blade (if worn)

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Diagnostic Steps

1
Check the rear wiper switch for functionality using a multimeter.
2
Inspect the fuse box for a blown fuse related to the rear wiper.
3
Verify the rear wiper motor's electrical connections for corrosion or loose wires.
4
Test the rear wiper motor directly by applying 12V power to it.
5
Inspect the rear wiper linkage for any obstructions or damage.
6
Check the washer fluid reservoir to ensure it has fluid and inspect the spray nozzle for clogs.

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the vehicle battery to ensure safety during the repair.
Tools Required: Socket set, multimeter, wire connectors, flathead screwdriver.

2. Remove the Rear Wiper Arm

Use a flathead screwdriver to gently pry off the plastic cap covering the wiper arm nut.
Use a socket wrench to remove the nut securing the wiper arm to the motor shaft.
Carefully wiggle the wiper arm to remove it from the motor shaft.

3. Access the Rear Wiper Motor

Remove the interior trim panel in the rear hatch to access the wiper motor.
Use a socket set to remove the screws securing the trim panel.
Disconnect any electrical connectors that may impede access to the motor.

4. Inspect and Test the Wiper Motor

Check the motor for signs of damage or corrosion.
Using a multimeter, measure the voltage at the connector while engaging the rear wiper switch.
If voltage is present, replace the motor. If not, proceed to check wiring and fuse as needed.

5. Install New Wiper Motor (if required)

If the motor is faulty, remove the old motor by unscrewing the mounting bolts.
Install the new motor by securing it in place with bolts.
Reconnect the electrical connectors.

6. Reassemble Components

Reattach the rear wiper arm to the motor shaft and secure it with the nut.
Replace the plastic cap over the nut.
Reinstall the interior trim panel and secure it with screws.
Reconnect the vehicle battery.