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

Volkswagen Tiguan 2nd Gen (2018-Present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

580 words

Problem Statement

Learn how to diagnose and fix the rear wiper not working on Volkswagen Tiguan (2018-present). 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 shocks.

Symptoms

•Rear wiper does not activate when switched on
•No noise or movement from the wiper motor
•Rear wiper fluid does not spray
•Rear wiper arm is loose or misaligned
•Warning light for wiper malfunction illuminated on the dashboard

Diagnostic Steps

1
Inspect the rear wiper switch for functionality and ensure it is not stuck.
2
Check the rear wiper fuse in the fuse box for any signs of a blown fuse.
3
Use an OBD-II scanner to check for error codes related to the wiper system.
4
Test the rear wiper motor by applying direct power to it from the vehicle battery.
5
Inspect the wiring and connectors leading to the rear wiper motor for damage or corrosion.
6
Check the rear wiper linkage for any obstructions or damage.

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
•Screwdriver set
•Socket set
•Fuse puller or pliers

Parts Required

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

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Diagnostic Steps

1
Inspect the rear wiper switch for functionality and ensure it is not stuck.
2
Check the rear wiper fuse in the fuse box for any signs of a blown fuse.
3
Use an OBD-II scanner to check for error codes related to the wiper system.
4
Test the rear wiper motor by applying direct power to it from the vehicle battery.
5
Inspect the wiring and connectors leading to the rear wiper motor for damage or corrosion.
6
Check the rear wiper linkage for any obstructions or damage.

Solution

1. Preparation

Gather all necessary tools and parts.
Ensure the vehicle is parked on a level surface and the ignition is off.
Disconnect the negative terminal of the battery for safety.

2. Inspect and Replace Fuse

Tools Required: Fuse puller or pliers
Locate the fuse box in the Tiguan (usually under the dashboard or in the engine compartment).
Identify the fuse related to the rear wiper (refer to the owner's manual for the exact fuse location).
Remove the fuse and inspect it for continuity. If blown, replace it with a new fuse of the same amperage.

3. Test and Replace Rear Wiper Motor

Tools Required: Multimeter, screwdriver, possibly a socket set
Reconnect the battery and locate the rear wiper motor.
Use a multimeter to check if voltage is reaching the motor when the wiper switch is activated.
If there is no voltage, trace and repair wiring issues; if voltage is present, proceed to replace the motor.
To replace the motor, remove any cover or trim surrounding it, disconnect the wiring harness, and unscrew the mounting bolts.
Install the new motor by reversing the removal steps, ensuring a secure fit.

4. Check Wiper Linkage

Tools Required: Socket set, lubricant
Inspect the wiper linkage by removing the wiper arm and any necessary covers.
Check for obstructions, and ensure that the linkage is correctly connected and lubricated.
If the linkage is damaged, replace it as necessary.

5. Reassemble and Test

Reattach the wiper arm and any covers removed during the process.
Reconnect the battery terminal.
Test the rear wiper functionality to ensure it operates correctly.