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What causes the abnormal noise when starting an Audi A4?

1Answers
DiAlex
07/23/2025, 01:06:43 PM

The reason for the abnormal noise when starting is mainly due to releasing the brake too slowly, which is a common issue with many automatic transmission vehicles. When the brake pedal is slowly released, the engine already has sufficient power to drive the car forward, but the brake hasn't been fully released. As a result, the moving wheels are held back by the braking system, naturally causing abnormal noise, which is a normal phenomenon. Here are some techniques for starting a car: Starting on flat ground: The key action for starting on flat ground is the coordination between the clutch and the accelerator, known as clutch-accelerator coordination. This involves lifting the clutch pedal to the engagement point and then slowly pressing the accelerator pedal while gradually releasing the clutch. Starting on an uphill slope: The key to starting on an uphill slope is overcoming the uphill resistance and preventing the car from rolling backward. In addition to the essentials and operations for starting on flat ground, pay close attention to the coordination between the parking brake lever, clutch pedal, and accelerator pedal.

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