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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Air Conditioning Compressor Mercedes W204 W212 M271 OM651 A/C Pump A0032308511

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Mercedes W906 Air Conditioning Unit Control Panel A9068300485

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Blower Resistor Mercedes W209 W211 Heater Regulator Control Unit A2308216351

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

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Mercedes W164 W251 Air Conditioning Compressor Pump Unit A0022305811

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Mercedes Vito W639 Air Conditioning A/C Refrigerant Pipe Line Hose A6398301016

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Mercedes W447 Air Conditioning Refrigerant Pipe Hose A4478304901

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Mercedes Citan W415 Heater Climate Control Panel A/C Air Con Switch 275708552R

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Mercedes W205 W213 W222 X253 OM654 Air Condition Compressor Electric A0008300301

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Mercedes W205 Air Condition Conditioning Compressor A/C Unit A0008308700

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Mercedes W169 W245 OM640 A/C Air Conditioning Compressor Pump A0022301411

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Mercedes C118 W177 W247 Air Con Pump Compressor A0008306202

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Mercedes Vito Viano W639 Air Conditioning Air Duct Channel Tube Rear A6398311745

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Mercedes W205 M274 Petrol Air Conditioning Compressor Pump A/C A0008302800

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

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Mercedes W211 Heater Control Unit Switch Panel Unit E-Class A2118300190

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Mercedes W203 Petrol Air Conditioning Condenser Cooling Radiator A2035002154

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Mercedes Vito W639 Air Conditioning Panel Climate Control Heater A6394461229

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Mercedes W203 M271 Air Conditioning A/C Pipe Hose Refrigerant Line A2712300756

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Mercedes W204 Air Conditioning Pipe Refrigerant Line Hose A/C A2128308115

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Mercedes W168 Dashboard Dash Center Air Vent Grill Nozzle A1688300054

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Mercedes W221 Air Conditioning Coolant Suction Pipe Line Hose A2218301316

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

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Mercedes-Benz C-Class W203 Heater Blower Temperature Sensor A2038300072

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Air Conditioning Compressor Mercedes W204 W207 W212 Air Con A/C Unit DCP17154

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Mercedes Sprinter W910 Air Vent Grill Front A9108303201

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Mercedes-Benz E G M W163 W211 W463 Air Conditioning Pressure Sensor A2038300372

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Part no. A1112306756

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

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Air Conditioning Mercedes W211 C219 OM642 A/C Compressor Refrigerant Line Hose

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Mercedes W164 Blower Motor Heater Fan Resistor Regulator A1648300361

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

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Blower Mercedes Vito W639 Heater Blower Rear Fan Housing Motor A6398300161

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Expansion Valve Mercedes Vito W639 Air Conditioning A/C Valve A6398300384

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

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Part no. A6398300685

Mercedes Vito W639 Rear Climate Control Switch Panel Air Con Unit A6398300685

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Part no. A2098300123

Mercedes C209 Air Duct Guide Channel Ball Left N/S A2098300123

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Part no. A0999063502

Mercedes W177 Actuator A/C Heater Blower Fan Stepper Motor A0999063502

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Mercedes W639 Air Conditioning Cooling Radiator Condenser A/C A6398350270

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Mercedes W204 Heater Climate Control Switch Panel Air Conditioning A2049001007

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Mercedes W221 Pressure Hose Pipe Air Conditioning Condenser A2218302117

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Mercedes Vito Viano W639 AC Climate Heater Control Unit Switch Panel A6399060100

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Air Conditioning Compressor Mercedes W177 W247 Air Con A/C Pump A0008304202

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Mercedes W205 OM654 A/C Air Con Air Conditioning Pipe Hose Line A2058300006

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

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

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A/C Compressor Mercedes W211 C219 Air Conditioning Compressor A0012308111

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Mercedes W176 W246 C117 Air Conditioning A/C Compressor Motor A0038304460

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Mercedes W204 Air Conditioning Unit Control Switch Panel Module A2049006608

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Mercedes Vito W639 Air Flap Electric Motor Actuator Heater Blower 0132801331

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Mercedes-Benz CL S Class C215 W220 Air Duct Plastic Pipe Right O/S A2208310446

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Heat Exchanger Mercedes X253 A/C Heater Core Radiator A0998300061

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Mercedes W211 OM642 Air Conditioning Refrigerant Compressor A/C Pump A0012308611

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Blower Motor Fan Mercedes W163 W203 W211 Heater Expansion Valve A2308210251

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Mercedes-Benz E W211 Air Conditioning AC A/C Pressure Switch Sensor A1408300072

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Mercedes Vito W639 Heater Radiator Air Conditioning Matrix Unit A0038357501

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Mercedes Sprinter W910 Heater Climate Control Unit Panel A9079054006

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Climate Control Panel Mercedes W204 W212 A/C Heater Unit Switch Rear A2048303290

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

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Air Conditioning Panel Mercedes W213 C238 Climate Control Switch A2139054707

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Air Conditioning Compressor Mercedes W211 Diesel OM646 A/C Pump A0022305111

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Mercedes W204 M271 Petrol Engine A/C Air Condition Compressor A0022303011

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Mercedes-Benz C E W204 W207 A207 C207 Air Duct Plastic Pipe Left A2048311146

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Air Duct Mercedes W205 Rear Right Passenger Cabin Ventilation A2058311445

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Mercedes W205 Automatic Air Conditioning Switch Control Panel A2059054806

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Mercedes A207 Convertible Seat Blower Motor Fan Headrest Unit A2078300008

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

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Mercedes SLK R171 Air Conditioning Condenser A/C Air Con A1715000154

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Mercedes W204 C207 W212 C218 A/C Air Conditioning Compressor Pump A0032308811

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Mercedes W164 Air Conditioning A/C Condenser Radiator Diesel OM642 A2515000054

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Condenser Mercedes W210 Air Conditioning A/C Radiator A2108300270

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

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

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Heat Exchanger Mercedes SLK W221 Air Conditioning Heating Unit A2218300061

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Mercedes H243 Expansion Valve A/C Air Conditioning Valve Unit A2938301201

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A/C Compressor Mercedes W213 W253 Air Conditioning Pump Electric A0008303202

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Mercedes Vito Viano W639 Air Vent Channel Defroster Trim Right A6398300145

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Mercedes Vito W639 Heater Matrix Blower Motor Fan Unit A0008358304

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Mercedes W212 Air Conditioning Unit Climate Control Switch Panel A2129008608

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Temperature Sensor Mercedes W124 Cabin Ventilation Air Con Sensor A0008301908

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Mercedes-Benz A W168 Diesel Heater Matrix Heat Exchanger Radiator A1688300761

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Air Conditioning Compressor Mercedes W204 W212 Air Con A/C Pump M276 A0008302300

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Mercedes W204 W212 M156 Heater Water Coolant Control Unit Valve A1562030164

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Mercedes-Benzs S W221 Heater Blower Fan Motor Resistor Regulator A2218706758

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Mercedes W204 Air Conditioning Unit Climate Control Switch Panel A2049006608

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Mercedes C118 W177 W205 W206 W213 W247 C257 Battery Cooling Valve A0005061300

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Mercedes-Benz S-Class W220 Right O/S Air Duct Plastic Pipe Hose A2208310846

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Air Conditioning Compressor Mercedes W211 Air Con A/C Unit A0012301211

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Mercedes W203 AMG Air Conditioning A/C Pipe Hose Refrigerant Line A1132301856

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Mercedes-Benz C E W204 W207 Dashboard Air Duct Channel Right O/S A2048311246

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Mercedes W168 Air Conditioning A/C Compressor A0002307911

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Mercedes W213 W238 Cooling Fan Blower Motor Control Unit 12V A2139062700

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Air Conditioning Compressor Mercedes W906 Air Con A/C Pump A0032309011

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Air Conditioning Pipe Mercedes W213 GLC X253 Refrigerant A/C Hose A2138302202

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Mercedes W166 Petrol A/C Air Condition Climate Line Hose Pipe Tube A1668301315

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Mercedes W164 Air Conditioning A/C Condenser Radiator Diesel OM629 A1645000054

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

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

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