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Air conditioning car spares

Air conditioning car spares for Top Car brand

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

An air conditioning system is used to cool the air inside a car. It ensures comfort inside the vehicle regardless of the ambient temperature.

Design of an air conditioning system

A vehicular air conditioner is made in the form of an air-tight system, in which refrigerant circulates. This is a substance that generates heat when compressed into a liquid state and absorbs it when expanding into a gaseous one. Refrigerant is pressurised by a compressor. It is driven either by the engine crankshaft, an electromagnetic clutch, or its own electric motor.

After activating the air conditioner, the compressor compresses the refrigerant, resulting in it being heated to 80-90 °C. After that, it is directed to the condenser, where counter-current air flows or a fan blow on it. These temperature fluctuations cause the condensation process to take place and the refrigerant passes through the receiver-drier as it’s turning into liquid, where dirt and moisture are eliminated from it. After that, the cooling agent passes through the thermostatic control valve and enters the low-pressure pipeline and then the evaporator, cooling down while entering a gaseous state. In front of the evaporator, is a fan that spreads the cooled air across the cabin. After that, the refrigerant returns to the compressor.

Sensors and control units control the operation of all these components.

Maintenance tips

  • Keep the engine compartment clean. Clean dust, dirt, and debris from the condenser from time to time. Remove any accumulated salt deposits from it.
  • Make sure that the tubes are securely fastened. If you notice that they’re loose, tighten the fasteners.
  • Perform maintenance the air conditioner on a regular basis. Do not ignore the recommendations for topping off the refrigerant: It tends to evaporate through the pores of the hoses, so over time the amount of cooling agent in the air conditioning system decreases.
  • Switch the system on in winter as a preventive measure. This will allow for lubricating its internal components, protecting them from corrosion and drying out. The unit running for about 15 minutes is sufficient. However, note that the procedure should be carried out in a warm room such as a garage, covered parking space, etc.
  • Try to clean the evaporator and replace the cabin filter twice a year.
  • If the car has been left in the sun for a long time in hot weather, air it out before turning on the air conditioning. This will reduce the load on the compressor and minimise the risk of getting ill.
  • Do not refill the air conditioning system yourself. Without suitable tools, you will not be able to control the pressure in the system. Excess refrigerant is very dangerous because it can cause hydraulic shock and the destruction of the compressor.
  • When the system is on, close the windows. If warm air from the street constantly gets into the car, all components of the air conditioning system will wear out prematurely.

Malfunction symptoms

Noises and humming coming from the compressor whenever the air conditioner is on or off indicate that the pulley bearing has worn out. However, if the noise appears only when the engine is running, the compressor itself is likely to be faulty. The compressor has to be replaced. A reduced cooling efficiency, as well as white foam in the inspection window, (if there is any), indicate that the system is leaking. If a condenser is contaminated, the system may shut down on its own. The same problem occurs when the thermostatic control valve is clogged. Simultaneously, evaporator tubes may get covered with ice accompanied by interruptions in the cold air supply. Similar problems can be observed when the pressure sensor is defective.

Malfunction causes

Deterioration of the compressor and other elements is most often caused by a lack of lubricant, which can be explained by a low level of refrigerant or by the system being out of use for a long time. Therefore, the air conditioner should be switched on at least once a week. Corrosion that damages the radiator and heater can be caused by a filter-drier failure, if, for example, it has not been replaced during depressurisation 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.
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Buy Control, blending flap VALEO 509227 - Air conditioning parts online
Control, blending flap
Article number: 509227
£ 69,60
incl. 20% VAT , excl. delivery costs,
  • Weight [kg]: 0,18
  • VALEO  Control, blending flap
  • Item number  509227
  • Our price   £ 69,60
  • Condition  New
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Buy Actuator, air conditioning VALEO 509355 - Air conditioning parts online
Actuator, air conditioning
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  • Vehicle Equipment: for vehicles with air conditioning
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  • Supplementary Article / Info 2: without cable
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Buy Control Valve, compressor THERMOTEC KTT060034 - Air conditioning parts online
Control Valve, compressor
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  • Manufacturer Restriction: Delphi, 6CVC140
  • THERMOTEC  Control Valve, compressor
  • Item number  KTT060034
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Buy AC compressor clutch THERMOTEC KTT040214 - Air conditioning parts online
AC compressor clutch
Article number: KTT040214
£ 89,16
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  • Manufacturer Restriction: Zexel, Typ KC-88, sred. kola pas.123mm
  • Number of grooves: 6
  • Voltage [V]: 12
  • THERMOTEC  AC compressor clutch
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Compressor, air conditioning DENSO DCP02041 - Air conditioning spare parts order
Compressor, air conditioning
Article number: DCP02041
£ 245,93
incl. 20% VAT , free delivery
  • Compressor Oil: PAG 46
  • Manufacturer Restriction: DENSO, VW-Group
  • Oil Fill Quantity [ml]: 120
  • Compressor ID: 6SEU14C
  • Belt Pulley Ø [mm]: 100
  • Number of ribs: 6
  • Refrigerant: R 134a
  • Weight [g]: 4940, 4986
  • Inlet Ø [mm]: 28,5
  • Outlet Ø [mm]: 15,4
  • Quality: OE
  • Number of grooves: 6
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  • Mounting Type: Bolted
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Compressor, air conditioning DENSO DCP40004 - Air conditioning spare parts order
Compressor, air conditioning
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£ 369,16
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  • Compressor Oil: PAG 46
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  • Compressor ID: 10SR15C
  • Belt Pulley Ø [mm]: 115
  • Number of ribs: 7
  • Refrigerant: R 134a
  • Voltage [V]: 12
  • Weight [g]: 7330
  • Inlet Ø [mm]: 18,3
  • Outlet Ø [mm]: 15,6
  • Quality: OE
  • Number of grooves: 7
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Compressor, air conditioning DENSO DCP51001 - Air conditioning spare parts order
Compressor, air conditioning
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£ 368,00
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  • Compressor Oil: PAG 46
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  • Oil Fill Quantity [ml]: 130
  • Compressor ID: 6SEU16C
  • Belt Pulley Ø [mm]: 110
  • Number of ribs: 7
  • Refrigerant: R 134a
  • Weight [g]: 5400
  • Inlet Ø [mm]: 18,3
  • Outlet Ø [mm]: 15,5
  • Quality: OE
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Compressor, air conditioning DELPHI TSP0155990 - Air conditioning spare parts order
Compressor, air conditioning
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  • Compressor Oil: PAG 46
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  • Compressor ID: 6 CVC
  • Belt Pulley Ø [mm]: 110
  • Supplementary Article / Info 2: with PAG compressor oil
  • Clutch ID: PV6
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  • Item number  TSP0155990
  • Our price   £ 490,28
  • Condition  New
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Air conditioning parts - AC compressor clutch THERMOTEC KTT040087
AC compressor clutch
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  • Condition  New
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Air conditioning parts - Coil, magnetic-clutch compressor THERMOTEC KTT040082
Coil, magnetic-clutch compressor
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  • Condition  New
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