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Abstract
Sound levels are very crucial for an automobile because of strict norms framed by the government. Once the automobile has been sold to the customer then it’s customer’s duty to maintain its health otherwise the sound level of the automobile will grow up. The higher sound level will not only dangerous to the pedestrians but also a sign of fault arises in the main component of automobile. In this case study health of four different variants based on odometer readingforMaruti Suzuki swift diesel is studied on the bases of recorded sound levels.Mainly, sound levels for idle condition and moving condition were measured and discussed along with the feedback from owners or with the visible facts. It has been concluded that the proper servicing of the vehicle and tire condition plays very significant role in reducing the sound levels of the vehicle.