Diagnostics & Mystery ProblemsDiscussionCommunity Starter

2018 Infiniti Q50 — vibration under acceleration but not while coasting

TrailDaily11Community StarterJun 18, 20262018 Infiniti Q50 Red SportChicago
The car is smooth at the same road speed when I lift off, but under moderate acceleration I can feel a vibration through the floor. What would you inspect first to separate axle/driveline issues from an engine mount?
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BoostScout146Community StarterCommunity StarterJun 18, 2026permalink
If it were mine, I would verify the cheap/easy branch on the 2018 Infiniti Q50 before committing to a big repair.
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