my Volkswagen Tiguan Second Generation (2018-present) won’t start and just clicks, what could it be?

Volkswagen Tiguan 2nd Gen (2018-Present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

492 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to diagnose and fix a no-start condition in Volkswagen Tiguan (2018-present). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Electrical

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow engine to cool before working near the starter motor.

Symptoms

•Clicking noise when the ignition key is turned
•Dashboard lights dim or flicker when trying to start
•Engine does not crank or start
•Battery warning light illuminated prior to the issue
•Possible electrical accessories functioning intermittently

Diagnostic Steps

1
Check the battery voltage using a multimeter to ensure it is above 12.4 volts.
2
Inspect battery terminals for corrosion or loose connections.
3
Attempt to jump-start the vehicle with jumper cables and another vehicle.
4
Test the starter motor by performing a voltage drop test.
5
Check the fuses related to the starting system for any blown fuses.
6
Inspect the ignition switch for functionality.

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

•Wire brush
•Wrench set
•Socket set
•Multimeter
•Torque wrench
•Screwdriver set

Parts Required

•New battery (if needed)
•New starter motor (if needed)
•New ignition switch (if needed)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Check the battery voltage using a multimeter to ensure it is above 12.4 volts.
2
Inspect battery terminals for corrosion or loose connections.
3
Attempt to jump-start the vehicle with jumper cables and another vehicle.
4
Test the starter motor by performing a voltage drop test.
5
Check the fuses related to the starting system for any blown fuses.
6
Inspect the ignition switch for functionality.

Solution

1. Preparation

Gather required tools and parts.
Disconnect the battery (negative terminal first).
Ensure the vehicle is in park or neutral.

2. Battery Inspection and Replacement

Sub-steps:
1. Clean the battery terminals using a wire brush to remove corrosion.
2. If the battery is faulty (voltage below 12.4 volts), replace it with a new, fully charged battery.
3. Reconnect the battery terminals (positive terminal first).

Tools Required:

Wire brush
Wrench set

3. Starter Motor Testing and Replacement

Sub-steps:
1. Locate the starter motor (usually found near the transmission).
2. Disconnect the electrical connector from the starter.
3. Use a multimeter to check for voltage at the starter when the ignition is turned to the start position.
4. If there is no voltage, check the ignition switch and wiring.
5. If voltage is present but the starter does not engage, replace the starter motor.
6. Reinstall the starter motor and reconnect the electrical connector.

Tools Required:

Socket set
Multimeter
Torque wrench

4. Ignition Switch Inspection

Sub-steps:
1. Remove the steering column cover to access the ignition switch.
2. Inspect wiring for damage or loose connections.
3. Test the ignition switch with a multimeter for continuity when the key is turned.
4. If the ignition switch is faulty, replace it.

Tools Required:

Screwdriver set
Multimeter