why does my Tesla Model S Original (2012-2020) have an oil smell

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

512 words

Problem Statement

Learn how to diagnose and fix oil smell issues in Tesla Model S (2012-2020). 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 any components to prevent burns.

Symptoms

•Oil smell inside or around the vehicle
•Possible visible oil spots under the vehicle
•Check engine light illuminated (if related to oil pressure)
•Unusual engine noise (if low oil levels are affecting performance)
•Increased engine temperature readings

Diagnostic Steps

1
Inspect the engine bay for visible oil leaks or wet spots.
2
Check the oil level using the dipstick or onboard display.
3
Use an OBD-II scanner to check for any diagnostic trouble codes (DTCs).
4
Inspect the oil filter and drain plug for signs of leakage.
5
Examine the gaskets and seals around the engine for wear or damage.
6
Look for signs of fluid contamination or mixing with other fluids.

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
•Oil filter wrench
•Socket set
•Torque wrench
•Funnel

Parts Required

•New oil filter
•Engine oil (specific to Tesla Model S specifications)
•Replacement gaskets or seals (if necessary)

Related Faults

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Diagnostic Steps

1
Inspect the engine bay for visible oil leaks or wet spots.
2
Check the oil level using the dipstick or onboard display.
3
Use an OBD-II scanner to check for any diagnostic trouble codes (DTCs).
4
Inspect the oil filter and drain plug for signs of leakage.
5
Examine the gaskets and seals around the engine for wear or damage.
6
Look for signs of fluid contamination or mixing with other fluids.

Solution

1. Preparation

Ensure the vehicle is parked on a level surface.
Gather necessary tools and parts.
Disconnect the vehicle’s 12V battery to avoid any electrical issues.

2. Locate the Leak

Inspect the engine bay and undercarriage for oil drips or pooling.
Use a flashlight to find the source of the oil smell, checking hoses and connections.

3. Address the Leak

Replace Oil Filter:
- Remove the old oil filter using an oil filter wrench.
- Apply a small amount of new oil to the gasket of the new filter.
- Install the new oil filter, tightening it according to manufacturer specifications.
Replace Gaskets/Seals:
- Remove components obstructing access to affected gaskets (if necessary).
- Clean the mating surfaces thoroughly.
- Apply the appropriate sealant or install new gaskets as required.
- Reassemble any removed components.

4. Refill Oil

If oil level was low, refill with the appropriate type of oil as specified in the owner’s manual.
Use a funnel to avoid spills and check the level with the dipstick after filling.

5. Reconnect Battery and Test

Reconnect the 12V battery.
Start the engine and allow it to run for a few minutes.
Check for oil leaks and monitor for any unusual smells.