Tesla Model 3 & Model Y Suspension Strut Noises, Failures, and Replacement (2017-2026)

Critical Compatibility Warning: RWD vs. AWD

Symptoms of a Failing Suspension Strut

Because Teslas are so quiet without an internal combustion engine, suspension noises are much more noticeable. A failing strut can produce a variety of sounds and handling problems. It's also common for other worn suspension parts, like control arms, to create similar noises, so proper diagnosis is key.

• Clunking or Banging Noises: This is the most common sign of a bad strut. You'll hear a hollow clunking or banging sound when driving over bumps, potholes, or uneven road surfaces. This is caused by worn internal components or a failing strut mount.
• Creaking or Groaning When Turning: A creaking, groaning, or binding sound when turning the steering wheel at low speeds can point to a worn strut bearing or mount. However, this sound is also a notorious symptom of failing front upper control arm ball joints on these vehicles, which is a very common issue.
• Excessive Bouncing: After hitting a bump, a car with a bad strut will continue to bounce up and down instead of settling quickly. This indicates the shock absorber portion of the strut is no longer damping suspension movement effectively.
• Nose-Diving and Squatting: If the front end of the car dips excessively when you brake hard, or the rear end squats during acceleration, the struts are likely worn out and failing to control the vehicle's weight transfer.
• Fluid Leaks: The strut is filled with hydraulic fluid. If you see oily fluid leaking down the side of the strut body, its internal seals have failed and it must be replaced.
• Uneven Tire Wear: Worn struts can cause a specific type of uneven tire wear called "cupping" or "scalloping," which appears as high and low spots across the tread. This happens because the tire is bouncing as it goes down the road instead of maintaining firm contact.

Known Issues, Recalls, and Technical Service Bulletins (TSBs)

While there haven't been recalls specifically for the struts themselves, several recalls and TSBs for related suspension components on the Model 3 and Model Y are important to be aware of, as they can cause similar symptoms or affect the strut replacement process.

Recall: Loose Front Suspension Lateral Link Fasteners

In October 2021, Tesla issued a recall for approximately 2,791 vehicles, including 2019-2021 Model 3 and 2020-2021 Model Ys (NHTSA Campaign: 21V835000, Tesla Recall: SB-21-31-003). The fasteners connecting the front suspension lateral link (a lower control arm) to the subframe could loosen. This could cause a shift in wheel alignment, instability, and an increased risk of a crash. Owners might hear an abnormal noise from the front suspension. The fix involves having Tesla service inspect and tighten or replace the fasteners.

TSB: Creaking Front Upper Control Arms

A very common complaint on these vehicles is a loud creaking or groaning sound from the front suspension, especially when turning at low speeds. This is often caused by water getting into the front upper control arm's ball joint, leading to corrosion. Tesla released Technical Service Bulletin SB-20-31-006, which details a procedure to reseal the ball joint area with urethane to prevent water intrusion. Tesla considers this a noise, vibration, and harshness (NVH) issue, not a safety failure, but many owners and shops opt to replace the entire control arm. 🎬 Watch: How to fix that annoying dry door hinge squeak. This sound is frequently misdiagnosed as a strut problem.

Buying a Used Tesla Suspension Strut: What to Look For

A used OEM strut can be a great value, offering original factory quality for significantly less than a new part. However, since it's a wear item, careful inspection is crucial.

• Verify Compatibility: First and foremost, confirm the part is from a Rear-Wheel Drive (RWD) vehicle if that's what you have. An AWD strut will not fit. Double-check the part number against the provided list.
• Check for Leaks: This is the biggest red flag. Inspect the strut body thoroughly. Any sign of oily residue means the internal seals have failed, and the strut is no good.
• Inspect the Rod: The chrome-plated piston rod that extends from the top of the strut body should be smooth, straight, and free of pitting, rust, or damage. Any nicks or corrosion on the rod will quickly destroy the new seal and cause it to leak.
• Examine the Mounts and Bushings: Check any rubber bushings for cracks, tearing, or deterioration. Inspect the upper strut mount for damage. While it's often recommended to replace the mount when replacing a strut, the condition of the one on the used assembly can tell you about the life it has lived.
• Mileage Considerations: Suspension components like struts typically show wear starting around 40,000-50,000 miles, with failures becoming more common after that. A used strut from a low-mileage vehicle (under 50,000 miles) is ideal. Be cautious of parts from vehicles with over 100,000 miles, as they may not have much service life left.
• Rebuild vs. Replace: For OEM struts, replacement is the only option. They are sealed units and not designed to be rebuilt by consumers or typical repair shops.

Cost of Replacement

The cost to replace a suspension strut can vary widely based on the parts chosen and local labor rates. Tesla's labor rates can be as high as $285 per hour.

Related Parts to Consider Replacing

When you replace a suspension strut, it's often a good time to inspect and replace other nearby components that wear at a similar rate or must be removed for the job.

• Front Upper Control Arms: As mentioned, these are a very common failure point, causing creaking noises. If you're already working on the front suspension, it's wise to replace them, especially on vehicles with over 40,000 miles.
• Lower Control Arms (Lateral and Compliance Links): The bushings in the lower arms can also tear, leading to clunking sounds and sloppy handling.
• Sway Bar End Links: These are a frequent source of clunking noises over bumps and are relatively inexpensive to replace.
• Strut Mounts/Top Hats: The upper mount contains a bearing that allows the strut to pivot. If it's worn, you may hear clunks or feel notchiness in the steering. It's standard practice to replace these with the struts.

Replacement Overview and Torque Specs

Replacing a strut is a job for an experienced DIYer or a professional. It requires specialized tools like a spring compressor (if transferring the old spring) and a way to safely lift and support the vehicle. 🎬 See this step-by-step walkthrough for a full suspension installation. A wheel alignment is required after replacement.

Key Torque Specs (Always verify with the latest Tesla Service Manual for your specific vehicle):

• Front Strut to Lower Control Arm Nut: 106 Nm (78.2 lb-ft) or 103 Nm (76 lb-ft)
• Front Strut Upper Mount Nuts (in frunk): 23 Nm (17 lb-ft)
• Rear Shock Upper Mount Nuts: 41 Nm (30 lb-ft)
• Rear Shock Lower Bolt: 115 Nm (84.8 lb-ft)
• Front Upper Control Arm to Body Bolts: 35 Nm (small bolts), 62 Nm (large bolts)

Frequently Asked Questions