What is the problem when the Volkswagen Tiguan fan does not turn?
3 Answers
Reasons why the Volkswagen Tiguan fan does not turn: Water temperature not reaching the required level: Most car radiator fans nowadays operate using electronic temperature control. Therefore, the fan usually starts turning normally only when the internal water temperature reaches the required level. If the temperature is too low, the radiator fan will not turn. Hence, when the car radiator fan fails to turn, the first thing to check is whether the water temperature has reached the required level. Relay malfunction: If the water temperature meets the requirements but the car radiator fan still does not work, the issue might be with the fan relay. If the relay malfunctions, the car's radiator fan cannot operate. Thermostat switch problem: If there are no issues with the above two aspects, then the thermostat switch should be checked. Sometimes, faults can occur in this area, which can also affect the operation of the car radiator fan. Therefore, it is important to inspect this as well.
That day, the fan of my Tiguan suddenly stopped working, which really worried me. While driving on the highway, the engine temperature gauge skyrocketed. I pulled over, calmed down, and first checked the fuse box in the engine compartment. Sure enough, the fuse was blown, and replacing it fixed the issue. However, I later learned that the fan not working could also be due to a faulty thermostat switch or an aging fan motor, especially common in older cars. If not repaired in time, engine overheating can cause severe damage to components, ranging from a breakdown to even a fire. Now, I check the fan operation every six months and always monitor the water temperature while driving. Don’t wait until there’s a problem to regret it—safe driving is more important than anything else.
I've encountered the issue of the Volkswagen Tiguan's fan not spinning several times, and it's usually related to the fuse, relay, or thermostat. You can try checking it yourself: open the engine hood, locate the fuse box, and see if the relevant fuse is blown; if that's fine, then check the relay—unplugging and replugging it to see if there's any response. I've also found that poor wiring connections or a seized fan motor are common culprits, such as dust buildup preventing the fan from turning. If the fan not spinning causes engine overheating, pull over immediately and don't force the car to keep running. Regularly clean the radiator fins during maintenance to prevent blockage that could hinder the fan's operation.
