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What are the solutions for the particularly loud humming noise in an Audi A4L?

2 Answers

Karen

07/29/25 8:54am

Audi A4L humming noise is particularly loud, first determine the location of the noise. Reasons for the particularly loud humming noise in an Audi A4L: Brake pads and brake discs rubbing causing abnormal noise; Clutch plate and release bearing damage causing abnormal noise. Solutions for the particularly loud humming noise in an Audi A4L: First, identify the location of the abnormal noise. If the noise occurs near the tires and the wheels and bearings have been ruled out, it may be caused by the friction between the brake pads and brake discs. Generally, brake pad noise is mostly due to hard spots on the brake pads rubbing against the brake discs, causing abnormal noise. If the noise is minor, it can be ignored; if the noise is loud, the brake pads can be removed, sanded with sandpaper, and reinstalled, which usually resolves the issue. If the noise is located at the connection between the transmission and the engine, it may be caused by damage to the clutch plate and release bearings. If the noise is inside the transmission, it could be due to abnormal wear of the first and second gear gears.

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SanIsabella

08/12/25 7:25am

I experienced a humming noise issue with my Audi A4L, and when the noise became particularly loud, I found it was caused by worn wheel hub bearings. The humming noise is more noticeable at higher speeds, especially above 60 km/h. You should first check the tire condition to ensure the pressure is even and there are no foreign objects stuck in the treads; low tire pressure or uneven tire wear can worsen the noise. If it's not a tire issue, manually rotate the wheel to listen for any grinding sounds to determine if the bearing is failing. Additionally, loose drivetrain or suspension components can also cause similar humming noises. I once replaced the bearings myself in my garage, but I recommend you get a professional diagnosis for safety. Addressing the noise early prevents further deterioration of the wheel system and improves driving comfort. Don’t delay—get it repaired within a week.

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