Why does the fan run when the engine is shut off?
The fan runs nearly every time the engine is shut off. It doesn’t matter whether the trip was a 60 mile trip, or a 20 mile trip. The fan comes on and runs when the engine is shut off, short trips aside. A little trip up the street to pick up groceries or dinner, or to catch a movie, and it probably will not come on.
Is it normal for a car fan to run all the time?
This is normal in many vehicles, such as BMW or Mercedes-Benz. The radiator fan may run up to five minutes and sometimes longer. Unless there is an electrical issue, it may stay on all the time until it drains the battery. When the engine is running, the coolant circulates from the engine and flows to the radiator, where heat is dissipated.
Why does the fan keep running on my TDI se?
My 2013 TDI SE has 5500 miles. In the past few days the engine fan continues to run after only short trips (3 miles). The only way to shut it off is to start the engine and then turn it off. This happens after
Can a car cool with the engine off?
There probably would be nothing wrong with letting the engine cool “by itself” (which is what happens if the design removes power from the fan when the ignition is off), but since the normal operation of most cars is to run the fan when the water temperature exceeds a set threshold, it does so even with the engine off.
Why does my car fan keep running after I Turn Off the engine?
Running cooling fans help cool down the engine even after you turn off the car. Common Causes. If your cooling fan runs for over 10 minutes after turning off the engine, you may have a problem that needs to be fixed. Here are some possibilities causing the fan to stay running longer. low coolant level, faulty coolant temperature sensor,
When to troubleshoot an electric car cooling fan?
On a warm engine, the fan may come on even if the engine is not running. When working on a hot engine or an engine that is running, keep your hands and tools away from the fan blades and moving components. Troubleshooting a cooling fan that doesn’t work can be a relatively straightforward task at times.
Why does my TDI cooling fan run after shutting the engine off?
Since the vehicle does not know you are only going on a short trip, it may start this process just before you arrive at your destination and now that engine is switched off and the vehicle is stationary the system will self-activate the cooling fans at high speed in an attempt to bring down those high temperatures now trapped below the hood.
There probably would be nothing wrong with letting the engine cool “by itself” (which is what happens if the design removes power from the fan when the ignition is off), but since the normal operation of most cars is to run the fan when the water temperature exceeds a set threshold, it does so even with the engine off.