Unusual Under-Car Noise in Tesla Model 3
A continuous noise from under the vehicle could indicate a loose underbody panel, a failing suspension component, or debris caught in the drivetrain. Since it's constant, it's likely not a temporary issue.
Diagnosis Details
Possible Causes
Loose or damaged underbody aero shield or splash guard
Debris (e.g., rock, stick) lodged between suspension or drive unit components
Worn suspension bushing or ball joint causing metal-on-metal contact
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What You Should Do
Inspect the underside of the vehicle for loose panels or visible debris.
If safe, gently tap underbody covers to check for looseness.
If noise persists, schedule a service appointment for a professional inspection of suspension and drivetrain components.
Estimated Repair Cost
$0–$50 for DIY panel tightening; $100–$300 for professional inspection and repair if debris removal or panel replacement needed; $500+ for suspension repairs
Typical range: $0 – $50
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Disclaimer: This AI-generated diagnosis is for informational reference only. Always consult a qualified mechanic for an in-person inspection. AutOwner is not responsible for decisions made based on this information.