Why is the Volvo engine so loud?

2 Answers
DiGrace
07/28/25 9:01pm
Volvo engine noise is loud for the following reasons: 1. Cold engine state: If it is in the morning, the car is in a cold state, the engine oil settles in the oil pan, and the fluidity of the oil is relatively poor at low temperatures. Chain-type engines are noisier compared to belt-type engines. Wait patiently for a few minutes, and the noise will reduce once the oil lubrication is sufficient. 2. Moving parts: When the engine is cold, the moving parts have smaller gaps due to thermal expansion and contraction, which also results in louder noise. 3. Pulleys: When the engine is cold, the noise from the pulleys and other wheels will be relatively louder. If the noise does not change after the engine reaches normal operating temperature, it is recommended to have it inspected and repaired at a 4S shop.
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LeRonan
08/12/25 1:43am
I've been driving a Volvo for several years and noticed that the engine noise is particularly noticeable during cold starts, with a distinct humming vibration felt inside the car. Later, I learned that this is due to Volvo's specially designed heavy-duty cylinder structure, intended to ensure stability during cold starts. The car itself uses less soundproofing material, unlike some luxury cars that are lined with sound-absorbing foam, so the engine noise naturally comes through more directly. Additionally, when the turbocharger kicks in, there's an extra airflow sound, especially noticeable during acceleration. At first, I wasn't quite used to it, but now I find this sound reassuring—it reminds me that the car is running normally, and it actually gives me peace of mind on long drives.
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