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Does Mercedes-Benz Need Running-in?

1 Answers

BryceAnn

07/30/25 9:15am

Mercedes-Benz needs running-in. Automobile running-in: The surfaces of new transmission components in automobiles always have certain minor imperfections, which result in less precise engagement and meshing between parts during operation, leading to more intense friction at contact points. If the operating speed is too high, permanent damage to the components may occur due to excessive friction temperature or excessive load at the contact points. Therefore, during the initial operation of new automobile transmission components, the relative speed at the contact points should not be too high, and lubrication should be replaced promptly to prevent metal particles suspended in the lubricating oil from entering the friction surfaces and accelerating component wear. The process where new transmission components undergo a period of operational friction, resulting in very precise engagement and meshing as well as smooth surfaces, is called running-in. New car running-in period: The running-in period for a new car is approximately 1,000-1,500 kilometers, and different manufacturers may have specific regulations for different models. The engine running-in requires about 1,000 kilometers. For the first 500 kilometers, it is recommended to drive at a speed of 60-70 km/h, with the engine speed not exceeding 2,200 rpm for optimal performance. Between 500-1,000 kilometers, the speed can be increased to 90-100 km/h, with the engine speed kept below 2,500 rpm for optimal running-in. After 1,000 kilometers, the speed can be increased to below 120 km/h, with the engine speed not exceeding 3,000 rpm.

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