What is the reason for the hole under the exhaust pipe of the Haval H6?
2 Answers
The reason for the hole under the exhaust pipe of the Haval H6 is solely for drainage, which is a normal phenomenon. The exhaust pipe often operates at high temperatures, and when it comes into contact with the cold air inside, it produces condensation. Function of the car exhaust pipe: For the car body, the exhaust pipe serves to reduce vibration and noise, as well as extend the lifespan of the exhaust muffler system. The main material of the exhaust pipe is stainless steel. For most vehicles, the exhaust gases exiting the engine are under high pressure, generating significant noise. The installation of a muffler inside the exhaust pipe can greatly reduce the noise. Application and structure of the car exhaust pipe: It is mainly used in light-duty vehicles, compact cars, and buses. Its structure consists of a double-layer corrugated pipe covered with a steel wire mesh sleeve, with clamping rings at both ends. To enhance the noise reduction effect, an expansion joint or mesh sleeve can be installed inside the corrugated pipe.
I've been driving my Haval H6 for almost three years now, and that small hole underneath the exhaust pipe is completely normal. I once asked a mechanic during maintenance, and he said it's designed for water drainage. When the engine burns gasoline, it generates water vapor, which condenses into liquid water. If this water accumulates in the exhaust pipe, it can cause rust or even freeze and crack the pipe, especially in northern winters where you often see water dripping from the exhaust. The hole is located at the lowest point of the muffler, and if the edges are smooth and neat, it's definitely a factory design—no need to worry about it. However, if the edges are uneven or there are debris around it, it might be a hole caused by impact and should be repaired. I didn’t pay attention to this detail with my previous car, and ended up replacing the entire exhaust system due to water buildup and rust. Now, whenever I wash my car, I make sure to clean the mud around the small hole to prevent clogging. Keeping the drainage clear ensures the exhaust pipe lasts longer.
