Audi A6 2.4 idling for 20 minutes in hot weather, the water temperature rises, and the oil temperature rises. Ask god for an answer! ! thank you

According to the symptoms, I feel that there is something wrong with your thermostat. There is only a small cycle, not a big cycle. When the speed is fast, airflow and wind will take away a lot of heat, so heat dissipation is normal. When the speed is slow, ignore the airflow, and the problem arises. You'd better check the thermostat.

The working temperature of automobile engine is about 95 degrees to 100 degrees. In order to ensure that the engine works at the correct temperature, a thermostat is installed near the water pump. Generally speaking, it is mostly waxy. When the water temperature rises, the wax melts and expands, the valve is pushed open, and the engine circulates from small cycle to large cycle. The water tank plays a role in heat dissipation during large circulation, and the temperature of Audi thermostat should be around 87.5.

The inspection method is simple. You have to start the car first, and when the water temperature rises to about 90, open the front cover and touch the circulating water pipe with your hands. If the upper water pipe is hot and the lower water pipe is not too hot, the thermostat is not turned on, and there is only a small cycle, not a big cycle. You need to change the thermostat, so be careful not to get hot.