my Volkswagen Tiguan Second Generation (2018-present) has a high oil consumption, what to do?

Volkswagen Tiguan 2nd Gen (2018-Present)

Error Codes

2-4 hours

Time

hard

Difficulty

high

Severity

3 min read

514 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 high oil consumption in Volkswagen Tiguan (2018-present). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Engine

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical components.
•Allow the engine to cool before opening the engine compartment.

Symptoms

•Check engine light illuminated
•Oil warning light activated
•Frequent need to add oil between changes
•Engine misfire or rough running
•Blue smoke from the exhaust on startup or acceleration
•Increased engine noise

Diagnostic Steps

1
Check the engine oil level and condition using the dipstick.
2
Inspect for oil leaks around the engine and under the vehicle.
3
Scan for error codes using an OBD-II scanner to identify potential issues.
4
Conduct a compression test on each cylinder to assess engine health.
5
Perform a visual inspection of the PCV (Positive Crankcase Ventilation) system for blockages or malfunctions.
6
Inspect the turbocharger (if equipped) for oil leaks or excessive play.

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
•Socket set
•Torque wrench
•Compression tester
•Pliers

Parts Required

•PCV valve
•Valve seals (if applicable)
•Turbocharger (if applicable)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Check the engine oil level and condition using the dipstick.
2
Inspect for oil leaks around the engine and under the vehicle.
3
Scan for error codes using an OBD-II scanner to identify potential issues.
4
Conduct a compression test on each cylinder to assess engine health.
5
Perform a visual inspection of the PCV (Positive Crankcase Ventilation) system for blockages or malfunctions.
6
Inspect the turbocharger (if equipped) for oil leaks or excessive play.

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the negative battery terminal.
Allow the engine to cool before proceeding.

2. Inspect and Replace PCV System

Sub-steps:
1. Locate the PCV valve and associated hoses.
2. Disconnect the hoses and remove the old PCV valve.
3. Install the new PCV valve (if faulty) and reconnect hoses.
Tools Required: Socket set, pliers.

3. Conduct Engine Compression Test

Sub-steps:
1. Remove spark plugs to access cylinder chambers.
2. Insert the compression gauge into the first cylinder and crank the engine.
3. Record the pressure reading and repeat for all cylinders.
4. Compare readings; if any cylinder is significantly lower, further investigation is needed.
Tools Required: Compression tester.

4. Inspect and Replace Valve Seals (if necessary)

Sub-steps:
1. Remove the valve cover to access the valve train.
2. Inspect valve seals for wear or damage.
3. Replace seals as needed, ensuring proper seating.
4. Reassemble the valve cover using the correct torque specifications.
Tools Required: Torque wrench, gasket scraper.

5. Repair or Replace Turbocharger (if equipped)

Sub-steps:
1. Disconnect the turbocharger from its mounting.
2. Inspect for oil leaks and excessive shaft play.
3. Replace turbocharger if found faulty, ensuring proper mounting and connections.
Tools Required: Socket set, torque wrench.