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2018 Model 3 Front Suspension Squeak/Clunk Over Bumps

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Steve N. · rep 0 · May 22, 5:23 AM · 1 replies · solved · Question

Vehicle: 2018 Tesla Model 3 Long Range

Hey everyone, I've got a 2018 Tesla Model 3 Long Range, and lately, I've noticed a really annoying squeaking and sometimes a light clunking sound coming from the front suspension. It's most noticeable when I go over speed bumps or uneven pavement at low speeds.

It sounds like it's coming from the driver's side front, but it's hard to pinpoint exactly. The car has about 60,000 miles on it. I haven't hit any major potholes recently, and the steering feels normal, no pulling or anything.

Has anyone else experienced this with their Model 3? What was the culprit? I'm hoping it's something simple and not a major suspension component. Any advice on what to check first would be greatly appreciated before I take it in.

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 22, 5:23 AM

0

ClearTheCode admin answer:

Squeaking and clunking from the front suspension are common complaints, especially as vehicles accumulate mileage. For a Tesla Model 3, the heavy battery pack can sometimes accelerate wear on certain suspension components.

Causes:

  1. Worn Control Arm Bushings: These rubber components dampen vibrations and allow movement. Cracks or tears can lead to noise.
  2. Worn Ball Joints: These allow steering and suspension movement. Play in a ball joint can cause clunking.
  3. Worn Sway Bar Links: These connect the sway bar to the suspension. Worn bushings or loose links can produce knocking sounds.
  4. Worn Strut Mounts: The top mount of the strut can wear out, leading to noise and reduced damping.

When to See a Shop: It's advisable to see a qualified technician if the noise is accompanied by:

  • Any changes in steering feel (looseness, pulling).
  • Uneven tire wear.
  • A feeling of instability or reduced control over bumps.

Even if it's just a noise, worn suspension components can compromise handling and safety over time. Addressing it early can prevent more expensive repairs down the line.

Diagnostic Steps:

  1. Visual Inspection: Safely lift the front of the vehicle. Inspect the control arm bushings (upper and lower), ball joints, sway bar end links, and strut mounts for visible cracks, tears, or excessive play. Look for signs of rust or corrosion around these areas.
  2. Lubrication Test: Sometimes, spraying a silicone-based lubricant on suspected rubber bushings can temporarily quiet the noise, helping to pinpoint the source. If the noise stops, it's likely a bushing issue.
  3. Bounce Test: Push down firmly on each front corner of the car. If it bounces more than once or twice before settling, the struts might be worn and losing their damping ability.
  4. Professional Diagnosis: A technician can use specialized tools, such as a pry bar, to check for play in various suspension components while the vehicle is lifted. While no specific OBD codes directly relate to mechanical suspension noises, a shop might check for any related sensor faults if the issue is more complex or if the vehicle has adaptive suspension.
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