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 ML W164 A/C Heater Climate Control Unit Switch Panel A2518702289

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Mercedes C207 Climate Heater Control Unit Switch Panel A2078300190

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Air Duct Mercedes ML W164 Rear Floor Right Ventilation Channel A1648311246

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Expansion Valve Mercedes SLK R172 Air Conditioning A/C Valve A1728350072

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

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Mercedes W211 Heater Air Conditioning A/C Climate Control Panel A2118302090

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Mercedes Vito W639 Air Conditioning Panel Climate Control Heater A6394461229

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Air Conditioning Panel Mercedes W205 GLC X253 Climate Control Switch A2059054515

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Mercedes W639 Headliner Rear Air Vent Nozzle Unit Trim Left N/S A6398302254

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Refrigerant Hose Pipe Mercedes W204 W212 Air Con Condenser Line A2048301216

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Mercedes Vito W639 Air Con Refrigerant Pipe Conditioning Line Hose A6398309115

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Mercedes Vito W639 Air Con Refrigerant Pipe Conditioning Line Hose A6398300215

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Mercedes-Benz Sprinter W906 Dashboard Left N/S Air Duct Pipe Channel A9068311545

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Mercedes-Benz S-Class W220 320 CDI Air Conditioning Con Pipe Hose A6132300456

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Mercedes W212 Air Conditioning Unit Climate Control Switch Panel A2129008608

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Mercedes W204 A/C Air Conditioning Unit Control Switch Panel Module A2048309385

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Mercedes-Benz ML W163 Heater Climate Control Unit Switch Panel A1638204989

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Condenser Mercedes GLE C292 ML W166 Air Conditioning A/C Radiator A0995000002

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Mercedes SLK R171 Air Con Pipe Conditioning Line Hose A/C A1718300715

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Mercedes W205 C253 Climate Control Panel Heater Switch Unit A2059058913

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Mercedes W205 W447 Air Conditioning Air Con A/C Unit Compressor A0008303801

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Mercedes R171 Air Conditioning Compressor Air A/C Hose Pipe Line A1718301215

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Mercedes R171 Air Conditioning Compressor Air A/C Hose Pipe Line A1718301115

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Refrigerant Hose Pipe Mercedes Vito W639 Air Conditioning Condenser A6398303800

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Mercedes W204 Heater Climate Control Panel Switch Air Con A/C Unit A2049009104

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Mercedes W204 W212 Air Conditioning A/C Air Con Condenser Hose Pipe A2128302500

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Mercedes R170 Air Conditioning Hose Pipe Suction Line A1112303956

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Mercedes ML W164 GL X164 AC Climate Heater Control Unit Switch Panel A2518700289

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Mercedes Vito Viano W639 Expansion Valve A/C Air Conditioning Valve A0048304184

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Heater Mercedes Vito W639 Additional Heat Exchanger Rear Heater A6398302061

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Mercedes-Benz M-Class ML W163 Auxiliary Coolant Water Pump A0018356064

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Mercedes W204 W207 Climate Control Temperature Sensor A2218300872

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Mercedes Vito W639 Air Conditioning Compressor Air Con A/C Pump A0032302311

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Mercedes Vito W639 Air Conditioning Suction Hose A/C Compressor Pipe A6398301715

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Air Conditioning Compressor Mercedes W204 W212 Air Con A/C Pump A0022303211

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Mercedes-Benz W169 W245 Heater Climate Control Unit Switch Panel A1698301385

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Mercedes W205 Automatic Air Conditioning Switch Control Panel A2059054806

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Mercedes W166 Air Vent Dashboard Right O/S A1668300254

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Mercedes W207 OM642 Diesel A/C Air Condition Compressor Pump A0008303600

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Mercedes C117 W176 Air Conditioning Cooler Radiator Condenser A/C A0995001054

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Mercedes W163 Heater Climate Control Unit Switch Panel A1638204989

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Mercedes W205 Air Conditioning Compressor Air Con A/C A0008304002

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Mercedes-Benz Vito Viano W639 Front Floor Air Duct Channel A6398301123

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Climate Control Panel Mercedes W203 W209 Heater Switch Air Con A/C A2098300085

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Mercedes R171 Air Conditioning AC Compressor A0002309311

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Mercedes Vito Viano W639 Air Conditioning Air Duct Channel Tube Rear A6398312045

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Mercedes Vito W639 Switch Control Panel Block ASR Wiper Heat Hazard A6398701910

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Mercedes Vito W639 Air Conditioning A/C Refrigerant Pipe Line Hose A6398303700

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Mercedes Vito W639 Air Vent Grille Rear Right O/S Roof Trim Nozzle A6398300854

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Mercedes W639 W906 Diesel A/C Air Conditioning Compressor Pump A0012301711

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Mercedes Vito W639 Heater Radiator Air Conditioning Matrix Unit A0038357501

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Mercedes-Benz C E W202 W210 Air Conditioning Unit Control Panel A2108303185

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Mercedes-Benz M-Class ML W163 Air Conditioning Expansion Valve A1638300084

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Air Panel Mercedes W204 Heater Climate Control Switch Conditioning A2049005805

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Mercedes-Benz C-Class W203 Air Conditioning Air Con Pipe Hose A1112306756

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Mercedes W221 W216 Air Heater Flap Actuator Stepper Motor A2219062500

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Air Conditioning Compressor Mercedes W205 W447 OM654 A/C Pump A0008304500

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

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Mercedes W176 W246 Climate Control Panel Heater Switch Air Con A/C A2469002208

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Mercedes W204 Air Conditioning A/C Control Switch Panel Module A2048309885

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AC Switch Mercedes ML W166 Air Conditioning Blower Control Panel A1669000106

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Air Conditioning Condenser Mercedes W211 CLS C219 OM642 A/C Air Con A2115000554

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Mercedes W639 Air Conditioning Cooling Radiator Condenser A/C A6398350270

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Mercedes-Benz S-Class W220 Diesel Gearbox Rear Mount Bracket Holder A2202420101

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Mercedes W221 M275 Air Condition A/C Compressor Pump Refrigerant A0022308111

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Mercedes W221 Air Conditioning Compressor OM646 Air Con A/C Unit A0032308411

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

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Mercedes-Benz C-Class W203 1 Engine Insulation Panelling Cover A2035242030

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Mercedes-Benz A B Class W169 W245 Heater Flap Motor Actuator A1698201042

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Mercedes W169 W204 W246 Outside Air Temperature Sensor A0075421313

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Mercedes-Benz C E Class W202 W210 Heater Blower Motor Fan Resistor A2108206210

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Mercedes W204 Air Conditioning Panel Climate Heater Control Unit A2049003803

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Mercedes-Benz A-Class W168 ASR Off Wiper Heat Switch Control Panel A1688203910

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Mercedes-Benz E CSL Class S211 W211 W219 Air Conditioning Hose Pipe A2118300615

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Mercedes W177 Air Conditioning Panel Climate Control Heater Unit A2479056803

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Mercedes-Benz A-Classe W168 Air Con Conditioning Dryer Drier Pump A1688300858

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AUC Sensor Mercedes W164 W169 W245 Air Quality A/C Air Conditioning A1698300272

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Mercedes W906 Roof Air Conditioning Heater Matrix Housing Box A9068309100

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