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

Volkswagen Tiguan 2nd Gen (2018-Present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

548 words

Problem Statement

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

Affected Component

Electrical

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems to avoid shocks.

Symptoms

•Rear wiper does not operate when activated
•Rear wiper washer fluid does not spray
•Clicking sound when the wiper switch is turned on
•No movement of the rear wiper arm
•Blades appear to be in good condition

Diagnostic Steps

1
Check the rear wiper fuse in the fuse box for continuity.
2
Use an OBD-II scanner to check for any relevant error codes related to the rear wiper system.
3
Inspect the rear wiper switch for functionality and proper connection.
4
Test the voltage at the rear wiper motor connector with a multimeter when the switch is activated.
5
Visually inspect the rear wiper motor and linkage for any signs of damage or corrosion.

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
•Multimeter
•Socket set
•Screwdriver set
•Fuse puller

Parts Required

•Rear wiper motor (if defective)
•Replacement fuse (if blown)

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Diagnostic Steps

1
Check the rear wiper fuse in the fuse box for continuity.
2
Use an OBD-II scanner to check for any relevant error codes related to the rear wiper system.
3
Inspect the rear wiper switch for functionality and proper connection.
4
Test the voltage at the rear wiper motor connector with a multimeter when the switch is activated.
5
Visually inspect the rear wiper motor and linkage for any signs of damage or corrosion.

Solution

1. Preparation

Gather tools: OBD-II scanner, multimeter, socket set, screwdriver set, and safety glasses.
Ensure the vehicle is parked on a level surface and the ignition is off.
Disconnect the negative battery terminal to prevent electrical shock.

2. Inspect and Replace the Fuse

Locate the fuse box, usually found under the dashboard or near the driver's side door.
Identify the fuse for the rear wiper using the diagram on the fuse box cover.
Remove the fuse using a fuse puller or pliers and inspect it.
- If the fuse is blown, replace it with a new fuse of the same amperage.

3. Test the Rear Wiper Motor

Reconnect the negative battery terminal.
Activate the rear wiper switch while measuring the voltage at the motor connector.
- If there is no voltage, inspect the wiring and switch.
If voltage is present, disconnect the motor and check for continuity with a multimeter.
- If there is no continuity, replace the wiper motor.

4. Replace the Wiper Motor (if necessary)

Remove the rear wiper arm by loosening the nut with a socket wrench and lifting the arm off the spindle.
Disconnect the motor wiring harness.
Remove the motor mounting bolts and carefully take out the motor.
Install the new motor by reversing the removal steps, ensuring all bolts are torqued to the manufacturer's specifications.

5. Reassemble and Test

Reattach the rear wiper arm, ensuring it is aligned correctly.
Reconnect the battery terminal.
Test the operation of the rear wiper and washer fluid.