2. The compressor is out of order. It may be that the electromagnetic clutch of the compressor is damaged and skidded. At this time, it is necessary to check the electromagnetic coil of the clutch and readjust the gap of the clutch. It may also be that the compressor bearing is seriously worn or loose, and the compressor needs to be replaced to solve the problem.
3. When the internal and external circulation is switched, the air conditioner has abnormal sound, that is, there is something wrong with the motor. At this time, replacing the motor can solve the problem of abnormal sound.
4. The fan of the blower should be well balanced. If the dynamic balance is not good, it may also lead to abnormal noise, which is more obvious.
2. How much is the BMW X5 blower?
1. Open the glove box in front of the passenger compartment of BMW x5.
2. After opening the glove box, take it out. Because the glove box screw is fixed, you can pull both sides to remove it.
3. After opening the glove box, you can see the blower below.
4. Unplug the power cord on the side of the hair dryer, and the hair dryer can be disassembled.
3. The duty cycle signal line of BMW X5 blower is broken.
By analyzing the circuit diagram of imported locomotive, it is found that the grounding end of the blower is controlled by the resistance of B4 blower, and the running speed of the blower is controlled by the duty ratio of the SI end sent by the air conditioning amplifier to the resistance of the blower.
Measure the voltage at terminal 3 of blower resistor B4 with multimeter, and the result shows 0V, which is abnormal. Check the fuse supplying power to the blower resistor again and find that the fuse is damaged.
Troubleshooting: replace the blown fuse and carry out trial operation to make the fan run normally and troubleshoot.
4. BMW X5 blower does not rotate
cause
1, poor contact of main control switch.
Maintenance method: Measure the contact resistance of the main control switch with a multimeter. If the resistance is too large or zero, it should be repaired or replaced.
2. The fan motor coil is damaged.
Maintenance method: Measure the contact resistance of the main control switch with a multimeter. If the resistance is too large or zero, it should be repaired or replaced.
3. The fixing screw between the fan motor and the blade is loose.
Maintenance method: Tighten the fixing screws.
Extended data:
function
Modern automobile air conditioners have four functions, any of which is to make passengers feel comfortable.
(1) The air conditioner can control the temperature in the carriage, which can not only heat the air, but also reduce the temperature, so as to control the temperature in the carriage at a comfortable level;
(2) Air conditioning can exhaust moisture in the air. Dry air absorbs human sweat and creates a more comfortable environment;
(3) The air conditioner can inhale fresh air and has ventilation function;
(4) Air conditioning can filter air and remove dust and pollen from the air.
5. How to disassemble the BMW X5 blower?
1, blower failure. Blower is the core equipment of air conditioner. If it is damaged, car air conditioner cannot be ventilated. Blower failure may be caused by overheating damage of internal coil or damage of capacitor. Turn the wind speed and air volume of the car air conditioner to the maximum, and listen to the sound of the blower to judge whether it is a fault. In case of failure, you need to go to the 4S shop or repair shop for maintenance.
2. Air conditioning filter screen blockage is one of the reasons for air duct blockage, and it is also the most common one. The air outside the car will be filtered by the air conditioner filter before entering the car, which will absorb a lot of impurities in the air, so it is easy to be blocked. You can remove the air conditioner filter to see if it is clean. If it is dirty, clean it.
3. Control system failure. If it is not for the above two reasons, there is something wrong with the control system of automobile air conditioning. Air door, control switch, car air conditioning computer may be the cause of the failure, so it is best to go to 4S shop for inspection and maintenance.
6. BMW X5 blower enters the leaves
1. Foreign objects enter the blower: foreign objects such as leaves, paper shells and even insects enter the blower. Under the agitation of high-speed fan blades, these foreign objects will make a buzzing sound. There are many reasons for entering foreign objects: the air-conditioning filter element has not been replaced for a long time, the air-conditioning position design is unreasonable, the gap is too large, and foreign objects fall in when removing the air-conditioning filter element. Solution: Use a vacuum cleaner to absorb foreign objects. If the foreign matter is large, it is necessary to remove the blower for cleaning.
2. Bearing wear of blower motor: The working principle of blower is very simple, and the fan blades are driven by DC motor. When the bearing of the motor is worn, the magnetic ring can't do the standard circular motion, and it will make a squeaking sound. Solution: Replace the blower assembly.
7. How much is the BMW X5 blower?
If the air-conditioning filter element is dirty and causes excessive noise and abnormal sound, it is necessary to clean the air-conditioning filter element or even replace it;
2. The fan blade of the automobile air conditioner is deformed and the fan motor is damaged, so it is necessary to replace the fan blade or the fan motor;
3, the blower screw is loose, and tightening the blower screw can solve the problem well;
4. There are sundries in the fan blades of the blower, resulting in abnormal noise. You can turn on the air volume of the blower without starting the car first to see if there is any sound. If there is a problem with the blower, it needs to be replaced;
5. The wear of the clutch bearing in the air conditioning pump causes the engine sound to become louder after the air conditioning is turned on. Replace the clutch bearing in the air conditioning pump.
8. What is the reason why BMW X5 blower doesn't press the defrost button?
1, unable to close (air leakage), turn down the temperature, the air outlet is still hot air.
2. If it can't be opened, raise the temperature, and there is no hot air blowing out of the air outlet.
3, the adjustment is not working, the phenomenon is that the automatic air conditioner can not keep the temperature constant. Users can directly remove the warm air valve to let the water go directly to the warm air tank, or replace it with a new warm air water valve. The warm air device uses the heat taken away from the engine by the engine coolant to defrost the cab glass in winter and warm the driver, thus improving the driver's working conditions. Open the water inlet valve on the water outlet pipe of the engine cylinder head (the valve handle is pulled to the vertical position), and the cooling water in the engine enters the warm air radiator from the cylinder head through the water inlet pipe, and then enters the water pump through the water outlet pipe for circulation. Extended data:
Note: 1. Check that the vibration and sound of the heater drain pump are normal, the liquid level of the heater drain tank is normal, there is no leakage point in the heater system, and there is no abnormal vibration in the heater system. 2. In order to exert the efficiency of the heating device, the engine water temperature should be kept at about 80℃. 3. The continuous use time of the heater should not be too long, so as not to shorten the service life of the heater motor.
4. Before using the heating device in winter, check whether the inlet and outlet pipes and the left and right air supply pipes are loose or broken.
5. In the season when the heater is not used, the heater inlet valve should be closed to isolate the heater from the engine cooling system.
9. BMW X5 blower has no high speed.
The air conditioner can be turned on when the car is not started, but the air conditioner sends out natural wind from the blower, because the compressor of the air conditioner is driven by the power of the engine, and the compressor naturally does not work when the car is turned off. The natural wind blown by the blower is driven by the battery, and eventually the blower consumes too much electricity in the battery, which may lead to the battery being cut off for a long time. Of course, this is only for traditional fuel vehicles.
So, the answer is clear. It is ok to turn off the car and turn on the air conditioner, but there is no refrigeration function, and it is easy to cause the battery to die after long-term use. Therefore, it is not recommended to turn on the air conditioner for a long time in the flameout state. If you want to turn on the air conditioner for ventilation, you should also switch to the external circulation mode to let fresh air replenish the car.
10. Where is the BMW X5 blower?
06 BMW X5 car heater button is the rotary button of blower, just rotate to a certain gear. This is because the heat is directly blown into the cab by the heat of the engine.
When the water temperature must reach about 90 degrees, turn on the rotary button of the blower. At this time, the fan will blow the temperature of the water tank into the cab. The whole process needs continuous operation, not just any button.
1 1. BMW x5 blower disassembly course
In the engine compartment, under the right front windshield, if it is the oldest, under the glove box of the co-pilot, the instrument panel does not need to be removed.