Why does the Volkswagen Magotan belt make abnormal noise?
2 Answers
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).
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.
