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 W639 Interior Heater Resistor A0016216560

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Mercedes W176 C117 CLA 45 AMG Petrol M133 Air Conditioning Compressor Hose

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Air Conditioning Compressor Mercedes W204 W207 W212 Air Con A/C Unit A0022303411

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Air Conditioning Pipe Mercedes W204 W212 Refrigerant A/C Hose Line A2048304715

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Mercedes CL S Class C215 W220 Air Duct Plastic Pipe Tunnel Centre A2208311146

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Mercedes SLK R171 A/C Air Con Heater Climate Control Switch Panel A1718300485

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Air Conditioning Compressor Mercedes W204 W212 M271 OM651 A/C Pump A0022304411

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Mercedes W212 Air Conditioning Panel Automatic Heater A/C Control A2129002814

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Temperature Sensor Mercedes W124 Cabin Ventilation Air Con Sensor A0008301908

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Mercedes CL S Class C215 W220 Air Duct Plastic Pipe Front Right O/S A2208311846

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Mercedes EQA H243 Electric Refrigerant Compressor Air Conditioning A0008307704

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Mercedes W639 Rear Blower Air Conditioning System A0008358004

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Mercedes ML SL W129 R129 W163 Cooling Fan Blower Motor A1298300608

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Air Conditioning Compressor Mercedes W213 OM654 Diesel A/C Pump A0008301301

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Mercedes W211 Heater Climate Control Panel Switch Air Con A/C Unit A2118302390

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Mercedes W204 Air Conditioning Unit Control Switch Panel Module A2048309885

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Heater Mercedes Vito W639 Additional Heat Exchanger Rear Heater A6398302061

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Mercedes R170 Air Conditioning Hose Pipe Suction Line A1112303956

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Mercedes GLX X253 Electric Water Heater Converter Unit A0008357300

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Mercedes Vito W639 Heat Exchanger Heater Matrix Radiator Core Unit A6394460429

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Air Duct Mercedes W210 Channel Cabin Ventilation Front Left N/S A2108310146

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Condenser Mercedes W210 Air Conditioning A/C Radiator A2108300270

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Mercedes Sprinter W910 Air Conditioning Pipe Refrigerant Hose Line A9108300000

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Mercedes-Benz A B W169 W245 48V Air Conditioning Compressor Pump A0022306811

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Mercedes-Benz A-Class W168 Heater Climate Control Unit Switch Panel A1688300485

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Mercedes W204 M271 Heater Water Coolant Pump Control Unit Valve A2712030164

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Mercedes W639 Air Conditioning Cooling Radiator Condenser A/C A6398350800

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Mercedes-Benz CL S Class W220 C215 Air Conditioning Pressure Pipe Hose

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