When a car is driving on the road, we can hear a lot of noise while sitting in the car. Of course, the more high-end a car is, the better it can control the noise inside the car. However, there are some noises that cannot be avoided and should not be avoided. Because we can judge various situations in the coming world from various sounds. Some of the noises we can hear are reasonable, while others are abnormal noises caused by car malfunctions. So what are the normal noises generated by cars while driving?

1、不同的路況，會導致汽車的車體結構產生不同的顛簸振動效果，從而發出一定的噪音;

1. Different road conditions can cause different bumpy vibration effects on the vehicle body structure, resulting in a certain amount of noise;

2、不同的汽車輪胎與地面接觸所產生的摩擦噪音和空氣振動噪音，就是所謂的胎噪;

2. The friction noise and air vibration noise generated by different car tires in contact with the ground are called tire noise;

3、汽車車身穿過大氣而產生的湍流聲音，就是所謂的風噪;

3. The turbulent sound generated by the car body passing through the atmosphere is called wind noise;

4、當汽車行駛時發動機會有適當的振動、排氣、進氣的聲音;

4. When the car is driving, the engine will have appropriate vibration, exhaust, and intake sound;

5、汽車行駛是靠傳動系統傳送動力，在傳動過程中的相互運動所激發的振動;

5. The driving of a car relies on the transmission system to transmit power, which is excited by the mutual motion during the transmission process;

6、當剎車時，剎車系統與輪胎輪圈之間的摩擦所發出的聲音;

6. The sound produced by the friction between the braking system and the tire rims when braking;

7、汽車行駛中如果在使用空調，空調風機也會發出一定的聲音。

7. If air conditioning is used during driving, the air conditioning fan will also make a certain sound.

以上都是一些正常范圍的汽車聲響，那么哪些聲響是在暗示著汽車出了故障需要維修了呢?如果你能了解一些汽車的故障聲音，至少能自我判斷是否該去修理廠了。

The above are all some normal range of car sounds, so which sounds suggest that the car has malfunctioned and needs to be repaired? If you can understand the sound of some car malfunctions, at least you can self judge whether to go to a repair shop.

汽車正常行駛時如果出現了奇怪的、不尋常的響聲，這就需要特別的注意。任何從汽車中產生的非正常聲音都意味著汽車運轉中出現了某些變化。

If a car makes strange or unusual noises during normal driving, special attention needs to be paid. Any abnormal sound generated from a car indicates certain changes in the operation of the car.

一、發動機系統的異響

1、 Abnormal noise from the engine system

1、高頻率的尖嘯叫：如果你的愛車在冷啟動時出現尖叫的聲音，并且持續一段時間。那么你就應該考慮去檢查一下傳動皮帶，必要時進行更換。一般來說，傳動皮帶打滑或者邊緣磨薄后會發出這樣的聲音。

1. High frequency whistling: If your car makes a screaming sound during a cold start and lasts for a period of time. So you should consider checking the transmission belt and replacing it if necessary. Generally speaking, the transmission belt will make such a sound after slipping or thinning the edges.

2、輕微的金屬撞擊聲音：如果啟動后感覺到發動機方向有類似于金屬在來回摩擦擊的聲音，那有可能是發動機的燃燒室內的油氣混合物沒有充分燃燒發出的聲響。如果使用了低標號或者不合格的汽油，往往會出現這樣的情況。要關注一下冷卻液溫度來確定發動機是否過熱。如果異常就要趕緊更換高標號的汽油，或者添加提高鋅烷值的添加劑。有時發動機積碳過多也會出現這樣的異響，進行燃油系統清洗可以解除癥狀。總之一但出現這樣的聲響，一定要盡快排除、解決，避免縮短發動機的壽命。

2. Slight metal impact sound: If you feel a sound similar to metal rubbing back and forth in the direction of the engine after starting, it may be due to the incomplete combustion of the oil gas mixture in the combustion chamber of the engine. If low-grade or substandard gasoline is used, this situation often occurs. Pay attention to the coolant temperature to determine if the engine is overheating. If there are any abnormalities, it is necessary to quickly replace the high-grade gasoline or add additives to increase the zinc octane number. Sometimes, excessive carbon accumulation in the engine can cause such abnormal noises, and cleaning the fuel system can relieve the symptoms. In short, if such a noise occurs, it must be eliminated and resolved as soon as possible to avoid shortening the engine's lifespan.

3、輕輕的扣擊聲：如果在車輛加速時總會聽到發動機方向有輕輕扣擊的聲音，或者是滴滴噠噠這樣的聲響，聲音并不大，但是會一直持續，但是停車后又不響了。出現這樣的聲響一般來說是發動機內缺機油或機油濾清器長久沒有更換導致的氣門間隙不勻。先檢查機油，如果并不缺少，就只能去維修廠去檢查氣門間隙或者進行發動機修理了。

3. Gently clicking sound: If you always hear a gentle clicking sound in the direction of the engine when the vehicle accelerates, or a sound like dribbling, the sound is not loud, but it will continue, but it will not make a sound after parking. The occurrence of such a noise is generally due to a lack of oil in the engine or uneven valve clearance caused by the oil filter not being replaced for a long time. First, check the engine oil. If there is no shortage, you can only go to the repair shop to check the valve clearance or perform engine repairs.

本文由濟南奔馳汽車保養友情奉獻.更多有關的知識請點擊:www.junwumy.com真誠的態度.為您提供為全面的服務.更多有關的知識我們將會陸續向大家奉獻.敬請期待.

This article is dedicated to the maintenance of Jinan Mercedes Benz cars. For more relevant knowledge, please click on www.junwumy.com with a sincere attitude. We will provide you with comprehensive services. We will continue to contribute more relevant knowledge to everyone. Stay tuned