my Volkswagen Tiguan's rear wiper isn't working what should I check

Volkswagen Tiguan Second Generation (2018-present)

Error Codes

1-3 hours

Time

medium

Difficulty

medium

Severity

3 min read

577 words

Problem Statement

Learn how to diagnose and fix the rear wiper issue in your Volkswagen Tiguan. 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 systems to prevent short circuits.
•Allow any components to cool down before handling to avoid burns.

Symptoms

•Rear wiper does not operate when activated
•No sound or movement from the rear wiper motor
•Wiper blade appears stuck or does not return to the resting position
•Warning light on the dashboard (if applicable)
•Wet rear windshield due to ineffective clearing

Diagnostic Steps

1
Check the rear wiper fuse using the vehicle's fuse box diagram.
2
Inspect the rear wiper switch for proper operation.
3
Test the rear wiper motor for power using a multimeter.
4
Examine the wiper linkage for any signs of damage or disconnection.
5
Check the rear windshield washer fluid level and pump functionality.
6
Inspect the wiring harness for any frayed or broken wires.

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
•Screwdriver set
•Pliers

Parts Required

•Rear wiper fuse (if blown)
•Rear wiper switch (if faulty)
•Rear wiper motor (if defective)
•Wiper linkage (if damaged)

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Diagnostic Steps

1
Check the rear wiper fuse using the vehicle's fuse box diagram.
2
Inspect the rear wiper switch for proper operation.
3
Test the rear wiper motor for power using a multimeter.
4
Examine the wiper linkage for any signs of damage or disconnection.
5
Check the rear windshield washer fluid level and pump functionality.
6
Inspect the wiring harness for any frayed or broken wires.

Solution

1. Preparation

Gather tools: socket set, multimeter, screwdriver set, and pliers.
Disconnect the vehicle's battery to ensure safety while working on electrical components.

2. Check and Replace Fuse

Locate the fuse box (usually under the dashboard or in the engine compartment).
Remove the fuse for the rear wiper using a fuse puller or pliers.
Inspect the fuse visually; if it is blown (the metal strip inside is broken), replace it with a new fuse of the same amperage.

3. Inspect and Replace Rear Wiper Switch

Remove the steering column cover (if necessary) using a screwdriver.
Disconnect the electrical connector from the rear wiper switch.
Use a multimeter to test the switch for continuity.
If the switch is faulty, replace it with a new switch and reconnect the electrical connector.

4. Test and Replace Rear Wiper Motor

Locate the rear wiper motor, usually found under the rear hatch trim.
Disconnect the motor's electrical connector and use a multimeter to test for voltage while activating the wiper switch.
If there is power but the motor does not operate, remove the motor using a socket set and replace it with a new motor.
Reconnect the motor and test for operation.

5. Inspect Wiper Linkage

With the rear wiper motor removed, inspect the wiper linkage for any signs of wear or disconnection.
If the linkage is damaged, replace it to ensure proper movement of the wiper arm.