why does my Volkswagen Tiguan's rear wiper not work

Volkswagen Tiguan Second Generation (2018-present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

468 words

Problem Statement

Learn how to diagnose and fix the rear wiper issue on your Volkswagen Tiguan. 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 battery before working on electrical systems to prevent short circuits.

Symptoms

•Rear wiper does not activate when switched on
•Rear wiper motor does not make any noise
•Rear wiper blade remains stationary
•Front wipers may work normally
•Rear washer fluid does not spray

Diagnostic Steps

1
Check the rear wiper switch for functionality using a multimeter.
2
Inspect the fuses related to the rear wiper and washer system.
3
Test for voltage at the rear wiper motor connector with the wiper switch activated.
4
Examine the wiring harness for any signs of damage or corrosion.
5
Verify the condition of the rear wiper motor and its connection.

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
•Screwdriver set
•Torque wrench

Parts Required

•Rear wiper motor (if faulty)
•Fuse (if blown)

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Diagnostic Steps

1
Check the rear wiper switch for functionality using a multimeter.
2
Inspect the fuses related to the rear wiper and washer system.
3
Test for voltage at the rear wiper motor connector with the wiper switch activated.
4
Examine the wiring harness for any signs of damage or corrosion.
5
Verify the condition of the rear wiper motor and its connection.

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the vehicle's battery to ensure safety during the repair.

2. Inspect Fuses

Locate the fuse box, typically found under the dashboard or in the engine compartment.
Identify the fuse designated for the rear wiper (refer to the owner's manual for exact location).
Remove the fuse and inspect it visually for any breaks; replace if necessary.

3. Check Wiring and Connector

Reconnect the battery temporarily to test the rear wiper switch.
With the switch on, use a multimeter to check for voltage at the rear wiper motor connector.
- If no voltage is present, trace back to the switch and wiring for issues.
If voltage is present, proceed to check the motor.

4. Replace Rear Wiper Motor (if faulty)

Remove the rear wiper arm by loosening the nut with a socket set and pulling it off.
Unscrew the motor mounting bolts and disconnect the electrical connector.
Install the new rear wiper motor by reversing the removal steps.
Tighten mounting bolts to the manufacturer’s specified torque (usually around 10-15 Nm).

5. Reassemble and Test

Reattach the rear wiper arm and secure with the nut.
Reconnect the battery.
Test the rear wiper and washer function to ensure they operate correctly.