Louder engine operation in BMW right after starting – what is the reason?

BMW E91

BMW driver question

I own a BMW with a 2.0 gasoline engine and 170,000 km driven. Everything is OK, only after igniting the engine for a minute it goes a little louder. I think the sound is coming from the exhaust manifold side.

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Body vibration and metallic sounds in BMW – how to fix them?

BMW 520d M Sport

BMW driver question

I recently replaced the timing gear (chain) and oil pump chain. After this repair, the car started to vibrate a lot when adding gas. I knew that the clutch and dual mass were not in the best condition either, so I replaced them, but the vibration remained.

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