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If you're experiencing issues with the alternator in your INFINITIQ50, there are several clear indicators to watch out for. The first red flag is a dead battery. Although a dead battery doesn't always indicate a faulty alternator, a malfunctioning alternator is often the culprit. If your battery hasn't completely died, you might observe dim lighting or erratic behavior on the instrument panel, such as flickering and strange noises, due to fluctuating power supply. Replacing the alternator typically ranges from $300 to $500, covering both parts and labor. While it may seem costly, it's crucial to address the problem promptly. Delaying the repair could lead to further damage, potentially resulting in a defective battery within a few weeks, costing you an additional $100 or so.
Consumers have reported electrical issues with the Infiniti Q50, including concerns about the battery such as quick battery depletion and wiring faults.
My Infiniti Q50 has had no problems starting. It sat idle for 2 or 3 months. I had to recharge the dead battery, but the car still won't start. The lights are very weak, and the horn doesn't work. The battery now shows as fully charged, but the car still won't start or show any lights.