Why does the Volkswagen Magotan belt make abnormal noise?

[GabrielAnn]

Volkswagen Magotan belt abnormal noise is caused by the smooth wear of the contact surface between the belt and the pulley. The following are the specific reasons and solutions: Smooth connection between the belt and pulley: It is caused by the smooth wear of the contact surface between the belt and the pulley. This usually occurs when the engine speed changes rapidly, and sometimes the increased load on the accessories driven by the belt can also cause the belt to make noise. Corresponding solutions: Check whether the bearings of the accessories driven by the belt are damaged, stuck, loose, or if the power of the accessories has increased. Replace the belt, or use 100-grit sandpaper to polish the contact surface between the pulley and the belt. As a temporary solution, you can drip 1-2 drops of engine oil on the contact surface between the belt and the pulley (this will not affect the belt slipping).

[AnaMarie]

I've been driving my Volkswagen Magotan for seven or eight years, and belt squeaking is quite a common issue. It always squeals when I start the car in the morning. At first, I thought it was just a minor problem with a new car, but later I found out it was due to belt aging or looseness. Over time, the rubber hardens and deforms, causing a harsh friction noise, sometimes even slipping, especially more noticeable in low temperatures. A loose tensioner spring can also cause the same problem—if the gap is too large, the belt vibrates and makes even more noise. I usually pop the hood and press the belt; if it sinks more than 1 cm, it's time to adjust or replace it. Delaying repairs can be risky—if the belt snaps, the car stalls, which is embarrassing. Once, I nearly had an accident on the highway because of it. So, I make it a habit to check and perform simple maintenance weekly. Belts generally need replacement every 50,000–60,000 km, which significantly extends their lifespan. Other belts, like the water pump or fan belt, also need attention. Overall, sticking to a maintenance schedule is key—it saves hassle and keeps things running smoothly.

[ChloeFitz]

My Volkswagen Magotan has only driven 20,000 kilometers, and recently I noticed a hissing sound. Consulting friends, they said it might be belt noise. As a novice, I'm quite puzzled—it could be that the belt was installed too tightly at the factory, causing excessive friction and noise during high-speed operation. Alternatively, small stones or dust might have gotten in, contaminating the surface and causing abnormal friction, especially noticeable on bumpy roads. I tried a simple visual inspection of the belt when the engine was cold; if there are no cracks, the issue might not be serious, but for safety, I decided to take it to a professional 4S shop for inspection. The technician mentioned that prolonged neglect could accelerate belt wear or even lead to breakage, affecting functions like the air conditioning or alternator. Avoiding dusty areas while driving can reduce risks. Vehicle noises aren't just limited to the belt—components like bearings or engine parts could also be problematic, so regular comprehensive inspections are essential.

[McLiam]

As someone who often repairs my own car, the abnormal noise from the Magotan's belt is mostly due to aging or insufficient tension. Open the engine hood to check if the belt has cracks. If it's loose, use a wrench to adjust the tensioner pulley to reduce the noise, but avoid excessive force to prevent damaging the parts. If the surface is severely cracked, it's necessary to replace it promptly. During installation, align the belt with the gears to avoid uneven wear. Cleaning off dust can temporarily reduce the noise. Remember to disconnect the power before starting to prevent accidents, and having all tools ready saves time and effort.