how to fix my Tesla Model S Original (2012-2020) oil consumption issue

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

3-5 hours

Time

medium

Difficulty

high

Severity

4 min read

636 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 excessive oil consumption in Tesla Model S (2012-2020). Step-by-step guide with symptoms, diagnostics, and repair instructions.

Affected Component

Engine

Estimated Time

3-5 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow the engine to cool before opening the oil drain plug to avoid burns.

Symptoms

•Oil warning light illuminated on the dashboard
•Engine making unusual noises (ticking or knocking)
•Increased exhaust smoke (blue smoke)
•Frequent need to add oil between service intervals
•Decreased engine performance or efficiency
•Oil leaks around engine components

Diagnostic Steps

1
Check the oil level using the dipstick and assess for any significant drop over a short period.
2
Inspect for visible signs of oil leaks around the engine, oil pan, and seals.
3
Scan the vehicle’s onboard diagnostics using an OBD-II scanner for any relevant error codes.
4
Perform a compression test on the engine cylinders to identify potential wear or damage.
5
Examine the PCV (Positive Crankcase Ventilation) system for blockages or malfunctions.
6
Inspect the turbocharger (if applicable) for oil leaks or excessive oil consumption.

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
•Oil catch pan
•Gasket scraper
•Safety glasses
•Gloves

Parts Required

•New oil seals (valve cover and oil pan)
•New PCV valve (if applicable)
•New oil filter
•Engine oil (0W-20 or 5W-30)

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Diagnostic Steps

1
Check the oil level using the dipstick and assess for any significant drop over a short period.
2
Inspect for visible signs of oil leaks around the engine, oil pan, and seals.
3
Scan the vehicle’s onboard diagnostics using an OBD-II scanner for any relevant error codes.
4
Perform a compression test on the engine cylinders to identify potential wear or damage.
5
Examine the PCV (Positive Crankcase Ventilation) system for blockages or malfunctions.
6
Inspect the turbocharger (if applicable) for oil leaks or excessive oil consumption.

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the battery to prevent any electrical issues during repair.
Safety glasses and gloves should be worn for protection.

2. Inspect and Replace Oil Seals

Sub-steps:
1. Locate and remove the engine cover to access engine components.
2. Inspect the valve cover gaskets and oil pan seals for signs of wear or leaks.
3. Remove any damaged seals using a gasket scraper.
4. Clean the mating surfaces thoroughly to ensure good seal adhesion.
5. Install new oil seals and gaskets, ensuring they are properly aligned.
6. Reinstall the engine cover.

3. Clean or Replace PCV System

Sub-steps:
1. Locate the PCV valve and hoses connected to the intake manifold.
2. Remove the PCV valve and inspect it for blockages or damage.
3. Clean the PCV valve with a suitable solvent or replace it if necessary.
4. Inspect and replace any damaged or cracked hoses leading to and from the PCV system.
5. Reattach the PCV system components and ensure secure connections.

4. Engine Oil Change

Sub-steps:
1. Place the vehicle on a level surface and raise it using jack stands.
2. Drain the engine oil using an oil catch pan by removing the oil drain plug.
3. Replace the oil filter with a new one, ensuring the rubber O-ring is not stuck on the engine.
4. Reinstall the drain plug and torque it to the manufacturer's specifications (usually around 25-30 Nm).
5. Refill the engine with the recommended oil type and quantity (typically 0W-20 or 5W-30).
6. Start the engine and allow it to run for a few minutes, then check for leaks.