What Causes the Buzzing Sound in a BMW's Exhaust Pipe?
1 Answers
BMW exhaust pipe noise may be due to a broken or detached baffle inside the exhaust pipe, causing the pipe to come into contact with the vehicle body and produce sound. The role of the exhaust pipe for the car body: The car exhaust pipe serves to reduce vibration and noise, as well as extend the lifespan of the exhaust muffler system. When abnormal sounds are detected, it is important to address them promptly. Installing a muffler inside can significantly reduce the car's noise. Reasons for exhaust pipe noise: When pressing the accelerator pedal, you may hear a popping sound from the exhaust pipe. The sound might not be very loud, and the car may drive normally, but fuel consumption may increase. Sometimes, similar sounds may also come from the front section. It is recommended to check whether the muffler and exhaust pipe are damaged.