Alpina D3 Biturbo Clunk Noise During Gear Engagement

Verify the symptom by shifting the transmission between Park, Neutral, Drive, and Reverse while the vehicle is stationary on level ground with the engine idling. A metallic 'thud' or 'clunk' heard or felt during the engagement of a gear indicates driveline slack. Additionally, observe if the noise persists or worsens during the transition from engine braking to acceleration while driving at low speeds.

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