What is the reason for the loud reverse gear noise in Volkswagen Lavida?

[DeMiguel]

Reasons for loud reverse gear noise in Volkswagen Lavida: Damage to the reverse gear teeth, such as broken or chipped teeth; Damage to the reverse gear bearing, or poor lubrication of the bearing causing friction noise. Solutions for reverse gear noise: Apply a thin layer of grease to the parts where the brake pads connect with the brake caliper bracket at both ends. This can help alleviate the issue to some extent. However, it is important to note: When applying grease, make sure not to apply it to the friction surface of the brake pads or the brake disc, as this could affect braking performance. Reverse driving methods for different road conditions: If the road behind the vehicle is wide and flat with no pedestrians or other disturbances, you can reverse faster by pressing the accelerator deeper. If there are uphill slopes, pedestrians, obstacles, curves, or other external factors behind the vehicle, reverse slowly without pressing the accelerator.