What to Do About Regular Buzzing Sound at Idle in BMW X1?
1 Answers
BMW X1 idle has a regular buzzing sound for the following reasons: 1. First, determine whether the abnormal sound occurs at a specific RPM during acceleration, such as only at 2000 RPM or a certain RPM. This indicates resonance in a certain part, usually in loose components, such as whether an engine guard plate has been installed. If so, it might be the sound of the guard plate hitting the exhaust pipe, or the exhaust pipe might be internally disassembled. 2. This situation could also be caused by carbon deposit issues. Identify the specific location of the carbon deposit and have it cleaned by a professional.