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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Audi A6 C6 Dashboard Outlet Centre Middle A/C Air Duct Vent 4F2820951E

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Audi TT 8N A/C Air Conditioning Refrigerant Hose Pipe 3.2 Petrol BHE 8N0820721F

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Audi Q7 4L A/C Air Con Conditioning Pressure Sensor 4L0959126

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Audi A1 8X Air Conditioning A/C Radiator Condenser 6R0820411M

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Audi RS4 B8 Air Conditioning A/C Radiator Cooling Coolant Condenser 8K0260401S

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Audi A4 B9 A5 F5 A/C Air Condition Compressor Hose Pipe Line Tube 8W0816721D

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Audi A6 C6 Coolant Air Conditioning Pipe A/C Hose Line Tube 4F0260740B

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Audi A4 B9 2.0 TDI DETA Additional Radiator Auxiliary Heater Element 8W0819011

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Audi Q7 4L A/C Air Conditioning Hose Refrigerant Pipe Diesel 7L6820750AG

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Audi Q7 4L Air Conditioning Hose Pipe A/C Refrigerant Line 7L6820017D

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Audi A4 B7 A/C Air Condition High Pressure Pipe Hose Line Tube 8E2260712AG

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Audi A8 S8 D3 Rear Heater Climate Control Panel Unit 4E0919158C

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Audi A8 S8 D3 Rear Heater Climate Control Panel Unit 4E0919158C

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Audi A4 B7 Air Con Conditioning Compressor A/C Pump 8E0260805BJ

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Audi A4 B8 A5 8T Air Con Conditioning Pipe Hose Line 2.0 TDI Diesel 8T0816741B

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Audi RS6 C7 Air Conditioning Pipe Hose Line A/C 4G0260707AK

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Audi Q7 4L Webasto Auxiliary Additional Pre Heater Diesel 4L0815071G

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Air Con Pump Audi A4 B7 S6 C6 A8 D4 Conditioning Compressor A/C 4F0260805L

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