INFINITI Q40 noise when turning, pending diagnosis on INFINITI Q40

Submitted by Vehicle Owner · Jun 23, 2025
Published by RepairPal

Problem overview

Some INFINITI Q40 owners report experiencing various noises when turning, which may indicate underlying issues that require diagnosis. For instance, some owners have noted a rattling noise potentially caused by worn ball joints, struts, or sway bar links, with a "clunk" or "knock" felt in the floorboard when turning or going over bumps. Others report a knocking sound, particularly during slow turns, which may be attributed to worn tie rods or dried-out ball joints that can lead to steering wheel vibrations. Additionally, some drivers have experienced loud clunking and popping noises from the front driver side, suggesting problems with the inner CV axle. Creaking sounds when turning may indicate a need for lubrication in the suspension system or more serious issues like tie rod damage or failing struts. Lastly, clicking sounds could point to minor suspension concerns, such as a torn CV boot or worn CV joint. It is crucial for owners to consult a qualified technician to accurately diagnose and resolve these noises to ensure safe operation of their vehicle.

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