Why does the engine still make noise after the Tiguan is turned off?
2 Answers
When the engine of a Tiguan continues to make noise after being turned off, it is actually the sound of the fan. The Tiguan is equipped with a turbocharged engine, and the fan continues to operate for cooling purposes after the engine is turned off, which is a normal phenomenon. Here is some additional information: When using a turbocharged engine vehicle, it is important not to immediately turn off the engine after parking. Extended content: 1. After the engine has been under heavy load or running for an extended period, let it idle for 3-5 minutes before shutting it down to allow the turbocharger rotor speed to decrease, especially avoiding sudden shutdown after revving the engine. 2. After starting the engine, especially in winter, let it idle for a while to ensure the bearings are fully lubricated before the turbocharger rotor operates at high speed.
I've been driving a Volkswagen Tiguan for several years and have also encountered the situation where the engine area still buzzes after turning off the car. This is mostly a normal phenomenon caused by the cooling fan still running. When the car has just stopped, the residual heat in the engine is high, and the fan automatically starts to blow air for cooling to prevent overheating damage to internal components, especially after long-distance driving or driving in hot weather. Generally speaking, it's normal for the sound to last from a dozen seconds to a minute, as this is how the engine is designed to protect itself. However, if the sound lasts too long or is unusually loud, it may be caused by a stuck fan motor, a failed relay, or a faulty temperature sensor triggering unnecessary operation. It is recommended to observe the fan position and listen to the sound source the next time you park; simply check whether the coolant level is sufficient and whether the radiator is blocked by debris. Regular maintenance can reduce such problems, and normal sounds are nothing to worry about.
