First, the engine and air conditioning system caused by poor heat dissipation failure

1. Traffic jam or long idle operation, the engine noise increases, the most obvious when the air conditioning;

2. Idle instability, rapid acceleration, the engine has abnormal sound.

3. hot car off ten minutes later, the vehicle is not easy to start. Hot car driving sometimes automatically turn off;

4. cold air conditioning cooling temperature is very low, hot air conditioning and cooling effect is not good. And the air conditioning system has a greater resonance buzzing sound;

5. hot car idling, Baotou North Mercedes-Benz accessories air conditioning compressor clutch frequent absorption, or even disconnected, resulting in hot air conditioning is not cooling.

Second, the failure of the solution

1. Clean the dust between the condenser and the tank with high pressure gas;

2. Hot car, Baotou North Mercedes-Benz accessories water tank up and down the temperature difference can not be too much, otherwise you need to check the opening of the thermostat and the pump has lost the fault;

3. After the hot car, check the antifreeze tank on the top of the return pipe back to the water situation, if the backwater is poor or blocked will cause the water temperature is too high, Jetta car too many failures;

4. As the antifreeze to add and replace the non-standard, will cause the Baotou North Mercedes-Benz accessories engine watercourse and water tank in advance blocked, the phenomenon of high water temperature. Antifreeze two years to replace once, in the replacement and add must use the original accessories. Please note: the engine cooling system to add water, or add the antifreeze concentration of more than 60%, will cause the phenomenon of high water temperature.