Seat/Floor Vibration at Idle in Tesla Model Y
The driver or passenger feels a noticeable vibration through the seat or floor when the vehicle is idling (stationary with the electric motor running). This is often due to a mechanical resonance or imbalance in the drivetrain or suspension components, or an issue with the motor mounts.
Diagnosis Details
Possible Causes
Worn or damaged motor mounts (also called drive unit mounts) allowing excessive vibration transmission to the chassis.
Unbalanced or damaged half-shafts (drive axles) causing vibration that is felt at idle due to resonance.
Loose or misaligned suspension components (e.g., subframe bolts, control arm bushings) transmitting motor vibration.
Internal drive unit bearing wear or imbalance within the electric motor.
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What You Should Do
Inspect the motor mounts for cracks, looseness, or oil leakage.
Check half-shafts for play or damage.
Verify subframe and suspension bolt torque.
If no obvious issues, a Tesla service center should perform a vibration analysis using specialized equipment.
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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.