What Causes the Chassis Noise in BMW 3 Series?

[VanAngelo]

Here are the reasons and solutions for the chassis noise in BMW 3 Series: 1. Disc Brake: This is caused by damage, deformation, or detachment of the brake shoe support plate, damping spring plate, or guide plate of the disc brake, which increases the clearance between the brake shoe and the caliper support frame, resulting in mutual impact and noise. You can go to a repair shop to fix the deformed parts or replace the detached ones. 2. Front Suspension Ball Joint: The gap between the ball joint and the ball joint seat becomes larger, causing severe looseness. Since the ball joint seat is a sealed structure and cannot be disassembled, you can only go to a repair shop for replacement in this case. 3. Front Wheel Shock Absorber: Vehicles often drive on rough roads and are poorly maintained, leading to oil leakage and damage of the shock absorber. At a repair shop, the severity of the damage will determine whether it needs repair or replacement. 4. Drive Shaft Universal Joint: The noise from the constant velocity universal joint is due to excessive clearance or jamming. The main cause of noise from the universal cross shaft is the lack of lubrication or delayed maintenance. In this case, you should go to a repair shop for lubrication or repair.