What is the construction and purpose of air conditioning and heating systems?

Air conditioning and heating systems are systems responsible for regulating temperature, humidity, and air circulation in the vehicle cabin. They consist of cooling and heating parts, and their elements are located both in the engine compartment and under the dashboard. A typical set includes, among others, a compressor, condenser, evaporator, heater core, blower, and control modules.

What are air conditioning and heating systems used for?

Air conditioning and heating systems are used to maintain appropriate conditions inside the car throughout the year. They are responsible for cooling in summer, heating in winter, and dehumidifying the air when defrosting windows. Their efficiency also affects driver comfort, visibility, and the correct operation of automatic airflow control.

What is the construction and function of the blower module?

The blower module is a set of ducts, flaps, actuators, and housings through which air enters the cabin. It is used to direct the stream to the windshield, feet, or the central zone and to mix warm and cool air. Depending on the version, it works with actuator motors, temperature sensors, and the control panel.

How to select a part for a specific car?

When selecting, it is best to compare the OEM number, engine version, A/C type, and the layout of mounts and connectors. In many cases, the pre-facelift or post-facelift version, the type of control panel, and the presence of additional sensors also matter. A safe solution is to verify the part by VIN or by the number of the removed element.

What symptoms indicate a problem with the air conditioning or heating system?

Typical symptoms include poor cooling, lack of heating, fogging windows, uneven blower operation, and unusual noises after turning on the air conditioning. In practice, the cause may be a leak in the lines, a worn compressor, a damaged control panel, or a faulty flap motor. It is also worth checking the cabin filter and the patency of the condensate drain.

What to pay attention to before installing a used HVAC component?

Before installation, it is worth comparing the condition of the housing, the completeness of ports, mounts, and electrical plugs, and the compliance of catalog numbers. For parts such as a compressor, evaporator, or heater core, it is also important to check for leaks and signs of previous repairs. A well-chosen element reduces the risk of re-removal and facilitates proper fitting with the rest of the system.

Air conditioning and heating installations

At Global Parts, we offer a wide selection of original used car parts, including air conditioning and heating parts for many popular car brands such as BMW, Mini, Mercedes, Audi, Volkswagen, and others. Each of our air conditioning and heating parts undergoes quality control to ensure you receive a top-quality product.

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Mercedes W177 Air Con Refrigerant Pipe Conditioning Line Hose A/C A1778305601

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Audi A3 S3 8V 8Y Blower Motor Heater Fan Resistor Regulator 5Q2819021C

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BMW 3 Series E92 Coupe Carbon Fibre Air Pollen Filter Cover Set

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Climate Control Panel BMW X5 E70 X6 E71 A/C High Automatic Heated Seats 9219974

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Land Rover Discovery Sport L550 Heater Blower Resistor LR066932

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Volkswagen Golf Passat Audi A3 Q3 TT Mk2 8J Heater Blower Motor Fan 1K2820015H

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Mini Cooper One R55 R56 Automatic Air Conditioning Control Unit Panel Dashboard

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Mini Cooper One R55 R56 R57 LCI Cold Air Duct Right 51452752754

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Audi S7 4G Electric Wiring Harness Radiator Fan Cable 4G0971284A

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BMW E90 E91 E92 E93 LCI Air Conditioning A/C Pressure Pipe Hose Line N55 9221757

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Mercedes-Benz S-Class W220 Heater Blower Motor Fan Unit A2209060000

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Air Conditioning Compressor Mercedes W639 W906 OM642 A/C Pump A0012303211

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Audi A3 8P Dashboard Air Vent A/C Heater Climate Control Panel 8P0820043BG

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Mercedes W177 Heater Matrix Electric Auxiliary Heater Radiator A2478301000

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BMW F01 Rear A/C Control Panel Air Conditioning Unit Module 9224789

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BMW X5 X6 E70 E71 Switchover Valve Bracket Water Pump Motor 6950257

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Audi RS6 C7 A/C Air Condition Climate Control Flap Positioning Motor 4H0820511D

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BMW F20 F21 F30 F31 LCI B48 B58 Air Conditioning Cooler Condenser Drier 9338330

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Audi S3 8V A/C Air Condition Heater Climate Control Unit Panel 8V0820043AF

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BMW X5 Series E53 Hose Parking Heater Changeover Valve 6939160

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Audi A1 8X Heater Matrix Core Radiator Heat Heating Exchanger 6R0819031

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BMW E65 E66 M57N2 730d Compressor Condenser Pressure Hose 6942886

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