What are the symptoms of a faulty exhaust valve in the Tiguan?

1 Answers
CamilleLee
07/30/25 1:26am
Tiguan's faulty exhaust valve will cause the vehicle's engine to produce a whistling sound. If you hear a very sharp whistling noise, it can basically be confirmed that the exhaust valve is malfunctioning. The reason for the very sharp whistling sound is that the diaphragm inside the exhaust valve is damaged, and the sound is produced when the airflow passes through the diaphragm. In the early stages, if the exhaust valve is not severely damaged, the symptom is unstable idling. If it is not repaired in time, it will lead to the vehicle burning engine oil. The Volkswagen Tiguan is a car produced by Shanghai Volkswagen, with a body length, width, and height of 4506mm, 1809mm, and 1685mm respectively, a wheelbase of 2684mm, and a top speed of 202kw.
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