1. The heater water tank is blocked.
Solution: Check whether the temperature difference between the inlet and outlet pipes in front of the heater box is large. If this is the case, it must be that the heater tank is blocked. At this time, it is necessary to remove and replace the heater tank to solve the problem. The reason for this failure is generally because antifreeze is not replaced for a long time.
2, warm air water valve failure or air conditioning control panel circuit failure.
Solution: Turn off the fire, control the two control lines of the main driver and the co-pilot, with a ground wire in the middle (only when we turn on the air conditioner, the control line will have a positive pole), connect the control line of the main driver or the co-pilot, and check whether the relay and fuse work normally. If the positive pole is short-circuited, the car heater water valve will fail and need to be repaired or replaced. If the air conditioning control panel is short-circuited to the positive pole, replace or repair the air conditioning control panel.
3. The condenser has poor heat dissipation.
Solution: The main function of the cooling fan is to cool the water tank and condenser. If the cooling fan is used for a long time, the carbon brush and the position in contact with the rotor will be worn. If its speed is not enough, it will lead to poor cooling of condenser and water tank. If the carbon brush or rotor is not replaced in time, the cooling fan will not work normally, resulting in poor cooling of the condenser and the phenomenon that the air conditioner is not cooled.
Audi C7 body size is:
5036/ 1874/ 1466mm, with a wheelbase of 30 12mm. The height of some models is 1480mm. If you want to know the size of c7 Audi, you must first know what the Audi C7 means. Audi C7 means the seventh generation of Audi C-Class, which is the seventh generation of Audi A6L.
The letter indicates the vehicle category, C is the C-class vehicle and B is the B-class vehicle. This classification method was invented by the public, and it is not a uniform standard all over the world, but it has been used in China.
This classification method is a set of reference values formulated by Volkswagen when it first formulated its platform strategy. General car brands are (from low to high): A00, A0, A, B, C and D.