What causes the engine noise after the Tiguan is turned off?
2 Answers
Tiguan's engine noise after turning off is actually the sound of the fan. The Tiguan is equipped with a turbocharged engine, and the fan continues to operate for cooling after the turbocharged vehicle is turned off, which is a normal phenomenon. When using a turbocharged engine model, it is important not to turn off the engine immediately after parking. The Tiguan is a compact SUV produced by Shanghai Volkswagen, offering four versions (Urban, Trendline, Comfortline, and Highline) across seven models. In terms of body dimensions, the Tiguan measures 4506mm in length, 1809mm in width, 1685mm in height, with a wheelbase of 2684mm.
I've encountered the situation several times where the engine continues to make noise after turning off my Tiguan, which is usually normal. When the car has just been driven at high temperatures, the catalytic converter or exhaust pipe components may produce ticking or clicking sounds as they cool and contract due to thermal expansion and contraction physics. The fan also often continues to run for a few minutes to dissipate heat and protect the engine from damage. The Tiguan's cooling system is quite intelligent, and it quiets down after a short while. However, be cautious if the noise is very loud, lasts too long, or is accompanied by water leakage or unusual odors, as these could indicate faults like aging water pump bearings or loose belts. It's advisable to observe for a few minutes after parking—no need to worry if it's normal, but head to the 4S store immediately if anything seems off for a cooling system check. Regular maintenance, such as replacing coolant, can help reduce such noises. These sounds are more likely after long-distance driving, so don't ignore minor symptoms when everything seems fine—prevention is always better than cure.
