how to fix high oil consumption in Tesla Model S Original (2012-2020)

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

4 min read

604 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 Tesla Model S (2012-2020). Step-by-step guide with symptoms, diagnostic steps, 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 systems.
•Allow the engine to cool before opening the oil cap or drain plug.

Symptoms

•Engine oil warning light illuminated
•Excessive exhaust smoke
•Frequent need for oil top-offs
•Unusual engine noises (ticking or knocking)
•Decreased engine performance
•Oil leaks under the vehicle

Diagnostic Steps

1
Check the vehicle’s oil level and condition using the dipstick.
2
Inspect under the vehicle for visible oil leaks.
3
Scan the vehicle’s onboard computer for error codes related to the engine or oil system.
4
Perform a visual inspection of the engine bay for any signs of oil seepage around seals and gaskets.
5
Conduct a compression test on the engine cylinders to assess the condition of piston rings.
6
Check the PCV (Positive Crankcase Ventilation) system for proper function and blockages.

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

•Oil catch pan
•Socket set
•Torque wrench
•Oil filter wrench
•Multimeter

Parts Required

•New engine oil
•Oil filter
•Gaskets (if leaks are found)

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Diagnostic Steps

1
Check the vehicle’s oil level and condition using the dipstick.
2
Inspect under the vehicle for visible oil leaks.
3
Scan the vehicle’s onboard computer for error codes related to the engine or oil system.
4
Perform a visual inspection of the engine bay for any signs of oil seepage around seals and gaskets.
5
Conduct a compression test on the engine cylinders to assess the condition of piston rings.
6
Check the PCV (Positive Crankcase Ventilation) system for proper function and blockages.

Solution

1. Preparation

Tools Required: Oil catch pan, socket set, torque wrench, oil filter wrench, multimeter
Parts Required: New engine oil, oil filter, gaskets (if leaks are found)
Disconnect the battery before beginning any electrical work. Allow the engine to cool down completely.

2. Change Engine Oil and Filter

Step 1: Lift the vehicle using a jack and secure it with jack stands.
Step 2: Place an oil catch pan under the oil pan and remove the drain plug. Let the old oil drain completely.
Step 3: Remove the old oil filter using an oil filter wrench. Ensure that the old filter's O-ring comes off with it.
Step 4: Install the new oil filter, applying a small amount of new oil to the O-ring for a proper seal. Tighten according to manufacturer specifications.
Step 5: Reinstall the drain plug and tighten it to the specified torque.
Step 6: Refill the engine with new oil through the oil filler cap, using the recommended oil type and quantity.

3. Repair Leaks (if applicable)

Step 1: Identify the source of the leak from the visual inspection.
Step 2: Remove components as necessary to access the leaking part (e.g., valve cover, oil pan).
Step 3: Replace any worn gaskets or seals with new ones.
Step 4: Reassemble components and ensure all bolts are torqued to the manufacturer’s specifications.

4. Address PCV System

Step 1: Locate the PCV valve and inspect it for blockages or malfunctions.
Step 2: Clean or replace the PCV valve as necessary.
Step 3: Ensure all hoses connected to the PCV system are intact and not cracked.