Why is the engine noise loud in the Tiguan?
2 Answers
The reasons for the loud engine noise in the Tiguan are: 1. Deterioration of engine oil condition; 2. Carbon deposits causing incomplete combustion of gasoline; 3. Insufficient belt tension. Taking the 2017 Tiguan as an example, its body dimensions are: length 4506mm, width 1809mm, height 1685mm, wheelbase 2684mm, fuel tank capacity 63L, and trunk capacity ranging from 400 to 1530L. The 2017 Tiguan is equipped with a 1.8T turbocharged engine, with a maximum power of 118kW and a maximum torque of 250Nm, paired with a 6-speed automatic transmission.
When the engine noise of the Tiguan becomes louder, I often think it might be related to its turbocharged design. The Volkswagen EA888 engine is used in many vehicles, and its fast piston movement and increased vibrations during operation can produce a humming sound. Additionally, the soundproofing materials might be relatively thin, allowing external noise to enter the cabin. This is especially noticeable during cold starts because the oil temperature is low, and internal engine components require lubrication, resulting in a brief roar. If the air conditioning is on or during uphill acceleration, the engine load increases, naturally making the noise louder. Regularly check if the oil level is normal—low levels can worsen friction noise. Don’t underestimate this sound; ignoring it for a long time may lead to engine overheating or part wear. It’s recommended to visit a 4S shop periodically for diagnostics. Sometimes, switching to a better full-synthetic oil can help alleviate the issue, as protecting the engine is part of safe driving.
