Is It Normal for a New Mercedes-Benz Car to Have Loud Engine Noise?

[AnthonyMarie]

It is normal for a new Mercedes-Benz car to have loud engine noise. The relevant introduction about the engine is as follows: Introduction 1: An engine is a machine that can convert other forms of energy into mechanical energy, including internal combustion engines (reciprocating piston engines), external combustion engines (Stirling engines, steam engines, etc.), jet engines, electric motors, etc. For example, an internal combustion engine usually converts chemical energy into mechanical energy. Introduction 2: An engine can refer to both the power generation device and the entire machine including the power device (such as gasoline engines, aircraft engines). The engine was first born in the UK, so the concept of the engine also originates from English, and its original meaning refers to that 'mechanical device that generates power.'

[OLola]

I recently bought a new Mercedes-Benz, and the engine does sound a bit loud when starting, especially during cold mornings. At first, I was quite concerned because, as a luxury car, it should be quieter. But after consulting with the 4S dealership, they said this is normal—new car engines need to warm up quickly during the break-in period, and the fan and turbo operation can create some noise. I also noticed while driving that the sound quiets down significantly once the engine is warmed up. If you encounter a similar situation, unless you hear abnormal metal knocking or persistent screeching, there's no need to worry too much. New cars usually come with a warranty, so any concerns can be addressed with a free inspection at the dealership. Mercedes-Benz engines are designed for high performance, which might make them a bit louder, but you'll get used to it after a few days.

[DiPaisley]

My experience tells me that there are several normal reasons why a new Mercedes-Benz engine might sound loud. For example, the turbocharger may produce a humming sound when starting, or the fan system may operate under high load. During the break-in period of a new car, the sound might be slightly louder but should remain steady. I once drove a Mercedes C-Class and also felt the engine was a bit noisy. After consulting a technician, I learned this was due to the engine's need for efficient combustion to reduce emissions. If it's abnormal, it could be due to oil issues or loose components. I recommend starting the car in a quiet place to listen to the sound—if it's smooth, it's okay. For new cars, regular maintenance is essential to prevent issues from accumulating.

[SebastianLynn]

On the first day I got my new Mercedes, the loud engine noise made me uneasy. I immediately contacted the 4S dealership for an inspection. They explained that loud noises during cold starts are normal for new cars, mainly due to the engine heating system at work. I learned to avoid sudden acceleration during this period and let the car adapt for a while. If you have similar concerns, don't delay—Mercedes offers professional maintenance services. Loud noises in new cars usually aren't major issues, but ignoring them could lead to faults. Driving safety comes first, so always take any abnormal signs seriously.