why does my Tesla Model S Original (2012-2020) feel unstable around corners

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

516 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

Discover how to diagnose and repair suspension instability in Tesla Model S (2012-2020). Step-by-step guide with symptoms, diagnostics, and solutions.

Affected Component

Suspension

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Always use jack stands when working under a vehicle.
•Ensure the vehicle is on a stable surface before lifting.

Symptoms

•Vehicle sways or leans excessively during turns
•Steering feels loose or unresponsive
•Uneven tire wear
•Warning lights related to stability control may illuminate
•Increased noise from the suspension or tires during cornering

Diagnostic Steps

1
Inspect tire pressure and condition, ensuring they are inflated to the recommended levels and free of damage.
2
Check for any error codes using an OBD-II scanner specific to Tesla vehicles, focusing on steering and stability control codes.
3
Visually inspect the suspension components (shocks, struts, control arms) for wear or damage.
4
Test the alignment of the vehicle to ensure it is within manufacturer specifications.
5
Examine the wheel bearings for play or noise when the wheel is spun by hand.
6
Check the steering linkage for any looseness or damage.

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

•Tire pressure gauge
•Tire inflator
•Jack
•Jack stands
•Lug wrench
•Socket set
•Torque wrench
•OBD-II scanner

Parts Required

•Tires (if worn)
•Shocks/struts (if needed)
•Control arms/bushings (if needed)

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Diagnostic Steps

1
Inspect tire pressure and condition, ensuring they are inflated to the recommended levels and free of damage.
2
Check for any error codes using an OBD-II scanner specific to Tesla vehicles, focusing on steering and stability control codes.
3
Visually inspect the suspension components (shocks, struts, control arms) for wear or damage.
4
Test the alignment of the vehicle to ensure it is within manufacturer specifications.
5
Examine the wheel bearings for play or noise when the wheel is spun by hand.
6
Check the steering linkage for any looseness or damage.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface with the parking brake engaged.
Wear safety gloves and goggles.

2. Tire Inspection and Replacement

Sub-steps:
1. Remove the wheel covers or hubcaps (if applicable).
2. Use a tire pressure gauge to check all tires and inflate them to the recommended pressure (refer to the owner’s manual).
3. Inspect each tire for uneven wear or damage. Replace any tires that are excessively worn or damaged.

Tools Required: Tire pressure gauge, tire inflator, jack, jack stands, lug wrench.

3. Suspension Component Replacement

Sub-steps:
1. Lift the vehicle with a jack and secure it with jack stands.
2. Remove the wheels to access suspension components.
3. Inspect shocks and struts for leaks or damage; replace if necessary.
4. Check control arms and bushings for wear; replace if there are any signs of damage or excessive play.
5. Reassemble the suspension components and ensure all bolts are torqued to the manufacturer’s specifications.

Tools Required: Socket set, torque wrench, jack stands, pry bar.

4. Wheel Alignment

Sub-steps:
1. After all repairs, take the vehicle to a professional alignment shop.
2. Ensure that the alignment is set to manufacturer specifications.

Tools Required: Alignment machine (typically requires professional service).