What Causes Your Audi Engine To Overheat At Idle in Wilmington?

In an Audi, the engine is mostly overheated at idle condition instead of while driving. The main reason behind this is the failed cooling system. When the cooling system of the Audi is failed or something wrong happens, then you will notice engine overheating problems at idle with some expensive damages.

When you are driving, the cool air is automatically sucked into the front of the engine bay and through the radiator to cool the engine front. On a hot day, if the car is in idle condition, then it takes longer to deplete the heat from the radiator.

As a result, too much heat is produced from the engine and makes it overheat. Due to numerous reasons, the engine is overheated when idling. Go through the following points to know about the causes behind the engine overheating at idle.

Low coolant level

The internal combustion engine of the vehicle is equipped with a cooling system for circulating the coolant in the engine to reduce the heat generated during its functions and keep the engine at a relevant temperature. When the coolant level is low in the engine, it may make it overheat.

On the other hand, when the coolant is contaminated with outside foreign objects, then the engine will also keep overheating when you drive again. In this case, check the coolant level of the car by a mechanic for fixing the engine overheating issues.

Bad radiator fan

Like the low coolant level, the bad radiator fan also causes the engine to overheat. When you are driving the car, the air will flow over the radiator automatically and cool down the engine. But, in idle conditions, the airflow is disrupted and makes it overheat.

Moreover, the fully functional radiator fan creates the airflow to get the car to move again. If the radiator fan is damaged in your Audi, then you will notice overheating problems at idle and the temperature gauge is moving down once you pick up the speed.

Failed water pump

Thus, the main purpose of the water pump in your car is to circulate the coolant throughout the cooling system and flow the coolant from the radiator to the engine and vice versa. When the water pump is failed, it is unable to circulate the coolant through the engine block and cause engine overheating problems at idle.

When the temperature of the engine is rising at the idle condition, then the water pump can provide a small amount of gas temporarily for improving the engine cooling until it returned from the idle condition. So, replace the water pump of the car for fixing the engine overheating problems.

Damaged thermostat

Generally, the thermostat is used in a vehicle for controlling the temperature of the coolant to regulate its flow through the radiator precisely and run the engine at an optimal temperature. Generally, the thermostat is closed while starting the car, so it is unable to flow the coolant into the engine.

But, after a few hours of driving the engine is reaching to its operating temperature and opens the thermostat valve for flowing the coolant into the engine to absorb the extra heat produced during the operation. Due to any reason, if the thermostat is damaged, then the engine starts to overheat at idle.

What you will do when the engine overheats at idle?

When you notice the engine overheating problems in your Audi at idling, then pull over the car and turn off the engine as well as open the hood as soon as you can. In this way, you can cool the engine efficiently. After that, figure out the following things in your vehicle.

Check the coolant level of your car either from the expansion tank or an opaque tank. If the level the below the recommended level, then add some coolant to bring it to the normal level. Thereafter, restart the engine and leave it idle for few minutes. In this process, if you found the coolant level is again lower down due to coolant leaks, then bring it to your local garage.

Subsequently, check the fuse of the radiator fan in the fuse box. If the fuse is blown, then it will overheat the engine. For preventing the issues, you have to replace the radiator fan as soon as possible.

Few old vehicles have a rubber drive belt for operating the radiator fan. If you notice the overheated engine, then check out the fan belt because the loose or slipping fan belts may cause overheating problems. So, tighten the belt or reinstall it properly.

Conclusion

When you will notice engine overheating problems in your Audi, try to figure out the problem and inspect different parts of the engine cooling system. If you are living in Wilmington and unable to determine the real causes behind the overheating problem, then contact your local certified mechanics to investigate them properly and fix it efficiently.

With over 30 years of experience, Euro Pro is one of the largest car service centers in Both South & North Carolina. It houses very friendly and well-experienced ASE certified technicians who have over 35 years of experience working with German cars.