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Air Conditioning car parts - all important information about operating method, mounting, diagnostics and service life

Automotive air conditioning is a system that provides control and lowering of the air temperature in the cabin, its filtration and circulation.

Type of car air conditioning
  • By design:
    • Using thermostatic valve. It is represented by thermal evaporator tube, which is connected to the valve. If the temperature of the refrigerant increases at the evaporator outlet then the valve increases the flow of refrigerant. If the temperature at the outlet is lowered, then the level of the refrigerant flow is reduced.
    • Using expansion tube. The throttle of constant cross section is characterized by stable supply of refrigerant. Interaction of the expansion tube with a receiver-drier, which accumulates the refrigerant not evaporated in the expansion tube, allows preventing hydroimpact of compressor.
  • According to the method of cabin air flow control:
    • Manual control. Air temperature control is provided through valves manipulation.
    • Automatic adjustment. Automatic system provides the desired temperature of the air in the cabin.
Car air conditioning scheme
  1. Thermal tube.
  2. Evaporator.
  3. Thermostatic valve.
  4. Receiver Drier.
  5. Capacitor.
  6. Compressor.
Exploitation Tips
  1. Use air conditioning only when the windows and sunroof are closed.
  2. If the temperature in cabin is high, it is necessary to carry out ventilation of the car interior before turning on air conditioning.
  3. Do not forget about the systematic use of air conditioning - it will provide a stable oil circulation and proper operation of the air conditioning system parts.
  4. Provide full maintenance of the system once a year.
  5. Remember that before you finish driving, you must turn off the air conditioner and turn on the heating. This will allow to dry the air duct hoses and channels of the system and to avoid dampness.
  6. It is not recommended to smoke during air conditioning operation.
  7. Refilling of air conditioner, as well as its repair and replacement should be carried out by qualified specialists.
Failures of automotive air conditioning system
  • circuit breaking of pressure sensor;
  • circuiting of pressure sensor;
  • infringement of tightness of the system;
  • debris in the capacitor;
  • debris in the heating and air conditioning systems;
  • clogging of drainage pipe, evaporator;
  • worn-out condition and incorrect operation of the bearing of the drive shaft;
  • worn-out condition and incorrect operation of fan bearing.
Signs of air conditioning system failure
  • lowering the cooling performance;
  • extraneous sounds during fan operation;
  • the presence of white foam in the viewing window of receiver-drier;
  • unpleasant smell during air-conditioning system operation;
  • randomly switching off of the air conditioning;
  • extraneous sounds in the compressor when starting;
  • unstable supply of cold air;
  • freezing of the evaporator pipe.
Causes of automotive air conditioner failure
  • design peculiarities;
  • mechanical damage;
  • exploitation conditions;
  • use of low-quality components;
  • low-quality repairs and maintenance work;
  • untimely and incorrect refilling of refrigerant;
  • worn-out condition of the elements of the system.
Automotive air conditioning repair

The whole range of works, from diagnostic up to replacement of the system components must be carried out in specialized service. Qualified specialists will find out the cause of failure, make repairs and consult you how to increase the service life of the heating and air conditioning systems. Cleaning of the air conditioner, installation and dismantling of the units of the system, refilling of air conditioner - all these are not the financial costs but the necessary measures to ensure the proper functioning of the system.

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Top 10 of best sellers from the Air Conditioning section
Recommended spare parts from the Air Conditioning section. These are the sales hits. Buy our best sellling items or discover a vast selection of other attractive offers.
  • RIDEX Filter, interior air
    Number of article: 424I0102
    In stock
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    £ 7,62
    £ 6,10
    incl. 20% VAT
    • Filter type: Activated Carbon Filter
    • Length [mm]: 240
    • Width [mm]: 204
    • Height [mm]: 36
    • Condition: New
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    -20%
    £ 8,79
    £ 7,03
    incl. 20% VAT
    • Filter type: Pollen Filter
    • Length [mm]: 270
    • Width [mm]: 210
    • Height [mm]: 35
    • Condition: New
  • BOSCH Filter, interior air
    Number of article: 1 987 432 537
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    -20%
    £ 9,97
    £ 7,98
    incl. 20% VAT
    • Filter type: Activated Carbon Filter
    • Length [mm]: 222
    • Width [mm]: 268
    • Height [mm]: 22
    • Quantity: 1
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  • DENSO Filter, interior air
    Number of article: DCF462P
    In stock
    -20%
    £ 4,85
    £ 3,88
    incl. 20% VAT
    • Filter type: Particulate Filter
    • Length [mm]: 246
    • Width [mm]: 216
    • Height [mm]: 30
    • Weight [g]: 80
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  • RIDEX Filter, interior air
    Number of article: 424I0026
    In stock
    -20%
    £ 6,69
    £ 5,35
    incl. 20% VAT
    • Material: Activated Carbon
    • Filter type: Filter Insert
    • Length [mm]: 238
    • Width [mm]: 209
    • Thickness [mm]: 34
    • Frame Material: Polyester
    • Vehicle Equipment: for vehicles with/without air conditioning
    • Condition: New
  • BOSCH Filter, interior air
    Number of article: 1 987 432 097
    In stock
    -20%
    £ 9,29
    £ 7,43
    incl. 20% VAT
    • Filter type: Particulate Filter
    • Length [mm]: 210,8
    • Width [mm]: 271,8
    • Height [mm]: 33,5
    • Quantity: 1
    • Condition: New
  • MAHLE ORIGINAL Filter, interior air
    Number of article: LA 54
    In stock
    £ 8,00
    You Save: 30%
    £ 5,36
    incl. 20% VAT
    • Filter type: Filter Insert, Particulate Filter
    • Overall Length [mm]: 275,0
    • Width [mm]: 242,0
    • Height [mm]: 32,0
    • Driver Position: for left-hand drive vehicles
    • Condition: New
  • MAHLE ORIGINAL Filter, interior air
    Number of article: LAK 63
    In stock
    £ 9,00
    You Save: 30%
    £ 6,54
    incl. 20% VAT
    • Filter type: Activated Carbon Filter
    • Overall Length [mm]: 283,0, 282,0
    • Width [mm]: 206,5, 206,0
    • Height [mm]: 30,0
    • Condition: New
  • BOSCH Filter, interior air
    Number of article: 1 987 432 124
    In stock
    -20%
    £ 17,28
    £ 13,82
    incl. 20% VAT
    • Filter type: Particulate Filter
    • Length [mm]: 810
    • Width [mm]: 123
    • Height [mm]: 20
    • Quantity: 1
    • Condition: New
  • BOSCH Filter, interior air
    Number of article: 1 987 432 397
    In stock
    -20%
    £ 11,52
    £ 9,22
    incl. 20% VAT
    • Filter type: Activated Carbon Filter
    • Length [mm]: 214,5
    • Width [mm]: 288
    • Height [mm]: 58
    • Quantity: 1
    • Condition: New