how to fix the 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

615 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 any components to avoid burns.

Symptoms

•Excessive oil consumption between scheduled oil changes
•Blue smoke from the exhaust during acceleration
•Oil leaks visible under the vehicle
•Low oil level warning on the dashboard
•Engine knocking or unusual noises from engine compartment

Diagnostic Steps

1
Check the oil level and condition using the dipstick.
2
Inspect for visible oil leaks under the vehicle and around engine components.
3
Scan the vehicle for any stored diagnostic trouble codes (DTCs) using an OBD-II scanner.
4
Perform a compression test on the engine cylinders to assess the health of the piston rings and valves.
5
Inspect the oil filter for proper installation and signs of contamination.
6
Examine the PCV (Positive Crankcase Ventilation) system for blockages or malfunctions.

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
•UV dye kit (if needed)
•Oil filter wrench
•Funnel
•Compression tester
•OBD-II scanner
•Pliers

Parts Required

•New oil filter
•Engine oil (recommended type)
•Gaskets and seals (as needed)
•PCV valve (if replacement is necessary)

Related Faults

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Diagnostic Steps

1
Check the oil level and condition using the dipstick.
2
Inspect for visible oil leaks under the vehicle and around engine components.
3
Scan the vehicle for any stored diagnostic trouble codes (DTCs) using an OBD-II scanner.
4
Perform a compression test on the engine cylinders to assess the health of the piston rings and valves.
5
Inspect the oil filter for proper installation and signs of contamination.
6
Examine the PCV (Positive Crankcase Ventilation) system for blockages or malfunctions.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface and the engine is cool.
Disconnect the negative battery terminal to prevent any electrical issues.

2. Inspect and Repair Leaks

Sub-steps:
1. Visual Inspection: Look for oil stains on the engine and undercarriage.
2. Identify Source: Use dye or UV light to pinpoint the source of leaks.
3. Seal Leaks: Replace any defective gaskets, seals, or O-rings identified during the inspection.
Tools Required: Oil catch pan, socket set, torque wrench, UV dye kit (if needed).

3. Replace Oil Filter and Oil

Sub-steps:
1. Drain Oil: Remove the drain plug and allow the old oil to drain completely.
2. Replace Oil Filter: Use an oil filter wrench to remove the old filter; install a new filter, lubricating the rubber gasket with new oil.
3. Add New Oil: Reinstall the drain plug and fill the engine with the manufacturer-recommended oil type and quantity.
Tools Required: Oil filter wrench, socket set, funnel.

4. Inspect and Repair PCV System

Sub-steps:
1. Remove PCV Valve: Detach the PCV valve from the engine.
2. Clean or Replace: Check for blockages; clean or replace the valve if necessary.
3. Reinstall: Reattach the PCV valve securely to the engine.
Tools Required: Pliers, rags for cleaning.

5. Perform Compression Test (if necessary)

Sub-steps:
1. Remove Spark Plugs: Take out the spark plugs to access the cylinders.
2. Connect Compression Gauge: Insert the compression gauge into the spark plug hole and crank the engine.
3. Record Readings: Compare compression readings to manufacturer specifications to identify any issues with piston rings or valves.
Tools Required: Compression tester, socket set.