What Causes the Engine Noise in the New Volkswagen Jetta?
1 Answers
Jetta engine noise may be due to poor sound insulation, insufficient coolant, or the engine not adapting to the oil viscosity. Below are detailed reasons and solutions for the loud engine noise in the new Jetta: Inappropriate Oil Viscosity: After prolonged driving, the engine oil becomes thinner, and carbon deposits accumulate. When new engine oil is replaced, the engine may not adapt to the oil viscosity, potentially increasing the RPM and causing loud engine noise. Solution: Change the oil or wait for the noise to decrease with prolonged use. Poor Sound Insulation: The engine noise may be loud due to poor sound insulation of the engine itself. Solution: Inspect the car's sealing strips; if they are aged, replace them with new ones. Insufficient Coolant: Coolant levels can drop in low temperatures, leading to increased engine noise. Solution: Add more coolant.