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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Volkswagen Golf Mk8 Pollen Filter Mesh Duct Channel Box Intake 5Q0815479

PLN 42.95

Delivery: Aug 03

If paid before 14:00

Part no. 1K0907511B

VW Volkswagen Audi Seat Skoda Flap Motor Actuator Heater Blower 1K0907511B

PLN 42.95

Delivery: Aug 03

If paid before 14:00

Part no. 1K0907511

VW Volkswagen Touran 1T Heater Flap Motor Actuator Left N/S Unit 1K2907511C

PLN 42.95

Delivery: Aug 03

If paid before 14:00

Part no. 7P0820679A

Volkswagen Touareg 7P A/C Air Con Air Conditioning Expansion Valve 7P0820679A

PLN 61.95

Free delivery: Aug 03

If paid before 14:00

Part no. 6Q0959263A

Volkswagen Polo 6R SEAT Ibiza 6J Heater Blower Motor Resistor 6Q0959263A

PLN 61.95

Free delivery: Aug 03

If paid before 14:00

Part no. 1K2820103

Volkswagen Caddy Heater Evaporator Air Conditioning Unit 1K2820103

PLN 94.95

Free delivery: Aug 03

If paid before 14:00

Part no. 5Q0820743E

Audi A3 8V VW Golf Mk7 Air Conditioning Hose A/C Pipe Line 5Q0820743E

PLN 151.95

Free delivery: Aug 03

If paid before 14:00

Part no. 1K0907543A

VW Golf Mk5 1K Interior Air Vent Heater Blower Temperature Sensor 1K0907543A

PLN 42.95

Delivery: Aug 03

If paid before 14:00

Part no. 2K5819701A

Volkswagen Caddy Mk4 Dashboard Air Vent Left N/S 2K5819701A

PLN 51.95

Delivery: Aug 03

If paid before 14:00

Part no. 5Q0816803D-1

Volkswagen Audi Seat Skoda Air Conditioning Compressor A/C Pump 5Q0816803D

PLN 284.95

Free delivery: Aug 03

If paid before 14:00

Part no. 8Z0820535

Volkswagen Skoda Seat Audi External Temperature Sensor 8Z0820535

PLN 42.95

Delivery: Aug 03

If paid before 14:00

Part no. 06J121492C

Skoda Octavia RS 1Z 2.0 TSI Turbocharger Water Coolant Pipe Hose 06J121492C

PLN 75.95

Free delivery: Aug 03

If paid before 14:00

Part no. 1K0959126E

Volkswagen Polo 6R Air Conditioning Pressure Switch Sensor 5K0959126

PLN 94.95

Free delivery: Aug 03

If paid before 14:00

Part no. 5Q0820803F

VW Volkswagen Golf 5G 1.6 TDI CLHA A/C Air Condition Pump Compressor 5Q0820803F

PLN 199.95

Free delivery: Aug 03

If paid before 14:00

Part no. 03C903143B

Volkswagen Golf Mk6 Air Conditioning Compressor Mount Bracket Holder 03C903143B

PLN 42.95

Delivery: Aug 03

If paid before 14:00

Part no. 5Q0907521C-1

Volkswagen Golf 5G Blower Motor Heater Fan Resistor Regulator Control 5Q0907521C

PLN 61.95

Free delivery: Aug 03

If paid before 14:00

Part no. 6R0819045

Volkswagen VW Polo Mk5 6R Heater Climate Control Panel A/C Switch 6R0819045

PLN 61.95

Free delivery: Aug 03

If paid before 14:00

Part no. 5Q0820803Q

VW Crafter Mk2 Audi A1 GB Air Conditioning A/C Compressor Pump 5Q0820803Q

PLN 194.95

Free delivery: Aug 03

If paid before 14:00

Part no. 1J0919379A

Volkswagen Touareg 7L Outside Temperature Sensor Control Unit 1J0919379A

PLN 42.95

Delivery: Aug 03

If paid before 14:00

Part no. 3AA907044B

VW Volkswagen Passat B7 Climate A/C Control Unit Module Heater Panel 3AA907044B

PLN 132.95

Free delivery: Aug 03

If paid before 14:00

Part no. 03C903143B-1

VW Golf 6 Scirocco 3 Air Conditioning Compressor Mount Bracket Holder 03C903143B

PLN 94.95

Free delivery: Aug 03

If paid before 14:00

Part no. 5Q0907426AQ

VW Volkswagen Golf Mk7 Heater A/C Climate Control Panel Switch 5Q0907426AQ

PLN 113.95

Free delivery: Aug 03

If paid before 14:00

Part no. 6C0820721R

Volkswagen Polo 6C GTI Air Conditioning Pipe Line Hose 1.8 TSI 6C0820721R

PLN 498.95

Free delivery: Aug 03

If paid before 14:00

Part no. 1K0820741CS

Volkswagen Scirocco III Skoda Yeti Air Conditioning A/C Hose Pipe 1K0820741CS

PLN 189.95

Free delivery: Aug 3 – 4

If paid before 14:00

Part no. 1K0907044BD-1

VW Volkswagen Golf 1K Air Conditioning Climate Control Switch Panel 1K0907044BD

PLN 142.95

Free delivery: Aug 03

If paid before 14:00

Part no. 5G0907044CF

Volkswagen VW Golf Mk7 Air Conditioning Control Panel Switch Unit 5G0907044CF

PLN 123.95

Free delivery: Aug 03

If paid before 14:00

Part no. 5K0907044GJ

Volkswagen Tiguan 5N A/C Climate Control Heater Module Switch Button 5K0907044GJ

PLN 127.95

Free delivery: Aug 03

If paid before 14:00

Part no. 1K8907426AM

VW Volkswagen Caddy Maxi 2k Heater Climate Control Panel Switch 1K8907426AM

PLN 156.95

Free delivery: Aug 03

If paid before 14:00

Part no. 6R0820045N

Volkswagen Polo Mk5 6R Heater Climate Control Panel A/C Switch 6R0820045N

PLN 94.95

Free delivery: Aug 03

If paid before 14:00

Part no. 1K0819031B

Volkswagen Golf 1K Heater Matrix Element Unit Heat Exchanger Radiator 1K0819031B

PLN 42.95

Delivery: Aug 03

If paid before 14:00

Part no. 1K0820743BH

VW Golf V Mk5 Audi A3 8P Air Conditioning A/C Hose Pipe Line 1K0820743BH

PLN 113.95

Free delivery: Aug 3 – 4

If paid before 14:00

Part no. 6R0815479A

Volkswagen Polo Mk5 6R Heater Climate Air Intake Mesh Cover 6R0815479A

PLN 42.95

Delivery: Aug 03

If paid before 14:00

Part no. 1K0959263A

Volkswagen Golf 1K Heater Fan Motor Blower Resistor 1K0959263A

PLN 42.95

Delivery: Aug 03

If paid before 14:00

Part no. 95857231800

Porsche Cayenne 92A A/C Evaporator Air Conditioning Radiator 7P0820101A

PLN 422.95

Free delivery: Aug 3 – 4

If paid before 14:00

Part no. 5C0820743M

Volkswagen VW Beetle Air Conditioning A/C Air Con Hose Pipe Line 5C0820743M

PLN 189.95

Free delivery: Aug 03

If paid before 14:00

Part no. 5K0907044BC

Volkswagen Golf Mk6 Air Conditioning Panel Climate Control Switch 5K0907044BC

PLN 189.95

Free delivery: Aug 03

If paid before 14:00

Part no. 2E0915693

Volkswagen VW Crafter 2E Heater Fan Motor Resistor Unit Blower 2E0915693

PLN 42.95

Delivery: Aug 03

If paid before 14:00

Part no. 1K0820743FH

Volkswagen Golf Mk5 Audi A3 8P Air Conditioning Pipe Hose Line 1K0820743FG

PLN 284.95

Free delivery: Aug 03

If paid before 14:00

Part no. 3C0820721B

VW Volkswagen Passat B7 Air Conditioning Pipe Hose Tube Line 2.0 TDI 3C0820721B

PLN 70.95

Free delivery: Aug 03

If paid before 14:00

Part no. 2Q0819030A

Seat Ibiza FR KJ1 VW Polo MK6 Heater Matrix Unit Heat Exchanger 2Q0819030A

PLN 189.95

Free delivery: Aug 03

If paid before 14:00

Part no. 7L0820743G

Volkswagen Touareg 7L Air Con Pipe Conditioning Hose Line 3.2 Petrol 7L0820743G

PLN 61.95

Free delivery: Aug 03

If paid before 14:00

Part no. 1K1819857C

Volkswagen Golf Gti 5K Coolant Pipe Hose Tube Line Heat Exchanger 1K1819857C

PLN 189.95

Free delivery: Aug 03

If paid before 14:00

Part no. 1K0820679

Volkswagen VW Golf Mk5 1K Evaporator Air Con Matrix Air Conditioning 1K0820679

PLN 42.95

Delivery: Aug 03

If paid before 14:00

Part no. 2E2919158A-1

Volkswagen Crafter 35 Heater Climate Control A/C Switch Panel Button 2E2919158A

PLN 46.95

Delivery: Aug 03

If paid before 14:00

Part no. 1K8907426AT

Volkswagen Caddy Mk3 Mk4 Heater Climate Control Unit Switch Panel 1K8907426AT

PLN 213.95

Free delivery: Aug 03

If paid before 14:00

Part no. 1K0963235H

Volkswagen Golf Passat Tiguan Interior Heater Electric Matrix 1K0963235H

PLN 94.95

Free delivery: Aug 03

If paid before 14:00

Part no. 7H0820712

VW Volkswagen Transporter T5 A/C Air Conditioner Expansion Valve 7H0820712

PLN 70.95

Free delivery: Aug 03

If paid before 14:00

Part no. 1K0820047HC

Volkswagen VW Golf Mk6 Heater Climate Control A/C Unit Switch Panel 1K0820047HC

PLN 189.95

Free delivery: Aug 03

If paid before 14:00

Part no. 7P0963235

Volkswagen Touareg 7P Electric Heater Radiator Matrix Auxiliary 7P0963235

PLN 85.95

Free delivery: Aug 03

If paid before 14:00

Part no. 7P6907539

Volkswagen Touareg 7P Solar Sun Sensor 7P6907539

PLN 42.95

Delivery: Aug 03

If paid before 14:00

Part no. 1K8907044

Volkswagen Scirocco Mk3 Passat CC Climate Control Heater Panel 1K8907044

PLN 237.95

Free delivery: Aug 03

If paid before 14:00

Part no. 1J0819809-1

Volkswagen Touareg 7P Heater Core Water Coolant Valve Tube Pipe 1J0819809

PLN 94.95

Free delivery: Aug 03

If paid before 14:00

Part no. 7L0820411G

Volkswagen VW Touareg 7L Air Conditioning Cooling Condenser A/C 7L0820411G

PLN 142.95

Free delivery: Aug 3 – 4

If paid before 14:00

Part no. 5Q0819031B

VW Golf 8 CD1 Audi A3 8V 8Y Heat Exchanger Matrix A/C Radiator 5Q0819031B

PLN 142.95

Free delivery: Aug 03

If paid before 14:00

Part no. 1K0820743FK

Volkswagen VW Golf Mk6 Air Conditioning A/C Hose Pipe Line 1K0820743FK

PLN 113.95

Free delivery: Aug 3 – 4

If paid before 14:00

Part no. 1K0820679-1

VW Golf 1K Golf GTI 5k Jetta A6 Air Con Conditioning Expansion Valve D 1K0820679

PLN 94.95

Free delivery: Aug 03

If paid before 14:00

Part no. 5Q0816679B

Volkswagen Golf CD1 Expansion Valve Air Conditioning A/C Valve 5Q0816679B

PLN 42.95

Delivery: Aug 03

If paid before 14:00

Part no. 7E5907047AJ

Volkswagen Transporter T5 Heater A/C Climate Control Switch Panel 7E5907047AJ

PLN 963.95

Free delivery: Aug 03

If paid before 14:00

Part no. 5C0820743BN

Volkswagen VW Beetle Air Conditioning A/C Air Con Hose Pipe Line 5C0820743BN

PLN 189.95

Free delivery: Aug 3 – 4

If paid before 14:00

Part no. 7P0820803N

VW Volkswagen Touareg 7P AC Air Con Compressor Pump Unit 3.0 TDI 7P0820803N

PLN 569.95

Free delivery: Aug 03

If paid before 14:00

Part no. 5WA907727BD

Volkswagen Crafter SY SC Air Conditioning Climate Control Unit ECU 5WA907727BD

PLN 241.95

Free delivery: Aug 03

If paid before 14:00

Part no. 5K0820803C

Volkswagen Polo 6R Air Conditioning Con A/C Compressor Pump 5K0820803C

PLN 142.95

Free delivery: Aug 03

If paid before 14:00

Part no. 701819809G

Volkswagen Crafter I Heater Core Water Coolant Control Unit Valve 701819809G

PLN 42.95

Delivery: Aug 03

If paid before 14:00

Part no. 1K0260885B

Volkswagen Passat B7 Air Conditioning Compressor Mount Bracket Holder 1K0260885B

PLN 42.95

Delivery: Aug 03

If paid before 14:00

Part no. 5K0907044BS

Volkswagen Golf Mk6 Air Conditioning Panel Climate Control Switch 5K0907044BS

PLN 75.95

Free delivery: Aug 03

If paid before 14:00

Part no. 2Q0907511D-2

Volkswagen Golf Mk8 Polo Mk6 Air Flap Motor Actuator Heater Blower 2Q0907511D

PLN 46.95

Delivery: Aug 03

If paid before 14:00

Part no. 5C0820047CP

Volkswagen VW New Beetle 5C Heater Climate Control Panel A/C Switch 5C0820047CP

PLN 237.95

Free delivery: Aug 03

If paid before 14:00

Part no. 7L6820017B

Volkswagen Touareg 7L Audi Q7 4L Air Conditioning Pipe A/C Hose Line 7L6820017B

PLN 94.95

Free delivery: Aug 3 – 4

If paid before 14:00

Part no. 3C0907539C

Volkswagen Passat B7 Dashboard Interior Sun Light Sensor Unit 3C0907539C

PLN 46.95

Delivery: Aug 03

If paid before 14:00

Part no. 5K0907044DT

Volkswagen Passat B7 Scirocco Mk3 Heater Air Con Control Panel 5K0907044DT

PLN 46.95

Delivery: Aug 03

If paid before 14:00

Part no. 1K8907426AJ

VW Volkswagen Caddy 2k Air Conditioning Climate Heated Seat Control 1K8907426AJ

PLN 602.95

Free delivery: Aug 03

If paid before 14:00

Part no. 1K0819031E

Volkswagen Golf Tiguan Beetle Heater Matrix Unit Heat Exchanger 1K0819031E

PLN 94.95

Free delivery: Aug 03

If paid before 14:00

Part no. 5Q0819031A

Volkswagen Golf 5G Heat Exchanger Matrix A/C Radiator 5Q0819031A

PLN 142.95

Free delivery: Aug 03

If paid before 14:00

Part no. 1K0820741Q

Volkswagen Golf Mk5 Audi A3 8P Air Conditioning Pipe Hose Line 1K0820741Q

PLN 189.95

Free delivery: Aug 3 – 4

If paid before 14:00

Part no. 1K1820103E

Golf Gti 5K Audi A3 8P S3 8p Radiator Interior Heater Evaporator 1K1820103E

PLN 189.95

Free delivery: Aug 3 – 4

If paid before 14:00

Part no. 2HJ820249N

VW Volkswagen Amarok NF Air Conditioning A/C Air Con Pipe Hose Line MB3B19N602YC

PLN 142.95

Free delivery: Aug 03

If paid before 14:00

Part no. 5N0820803A

Audi Volkswagen Seat Skoda Air Con Conditioning Compressor A/C Pump 5N0820803A

Product currently unavailable

Part no. 1K0820859F

Audi VW Golf 5 Seat Skoda Air Con Conditioning Compressor A/C 1K0820859F

Product currently unavailable

Part no. 5N0820803E

Volkswagen Seat Skoda Air Con Conditioning Compressor A/C Pump 5N0820803E

Product currently unavailable

Part no. 6Q0820808G

VW Polo 9N Mk4 Air Con Conditioning Compressor A/C Pump 1.4 TDI BMS 6Q0820808G

Product currently unavailable

Part no. 7L0907521

Audi Q7 4L Volkswagen Touareg 7L Heater Blower Fan Resistor Unit 7L0907521

Product currently unavailable

Part no. 1K0820803N

VW Volkswagen Golf 5 Air Con Conditioning Compressor A/C Pump 1K0820803N

Product currently unavailable

Part no. 8E0260707AT

Audi A4 B7 Air Conditioning Pipe Refrigerant Hose Line 8E0260707AT

Product currently unavailable

Part no. 1K0820741BC

Volkswagen Golf Mk5 Audi A3 8P Air Conditioning Pipe Hose Line 1K0820741BC

Product currently unavailable

Part no. 5Q0816743H

Volkswagen VW Golf SV Air Conditioning Hose A/C Pipe Line 5Q0816743H

Product currently unavailable

Part no. 1T0820743BR

VW Volkswagen Touran 1T Air Conditioning Hose A/C Pipe Line 1T0820743BR

Product currently unavailable

Part no. 5N0819194

Volkswagen Tiguan 5N Webasto Heater Damper Filter 5N0819194

Product currently unavailable

Part no. 1K0820803G

VW Volkswagen Golf 5 1.9TDI BKC Air Con Conditioning Compressor A/C 1K0820803G

Product currently unavailable

Part no. 03C133514AP

Volkswagen Passat B7 Air Conditioning A/C Air Con Pipe Hose Line 03C133514AP

Product currently unavailable

Part no. 1K0907044BD

Air Conditioning Panel Volkswagen VW Golf 1K Climate Control Switch 1K0907044BD

Product currently unavailable

Part no. 1C0819045E

Volkswagen VW New Beetle Heater Climate Control Panel A/C Switch 1C0819045E

Product currently unavailable

Part no. 04L907284

Audi A4 B8 B9 A5 8T 8F 2.0 TDI Water Coolant Pump Valve Sensor 04L907284

Product currently unavailable

Part no. 7N0907426CM-1

Volkswagen Caddy 2K Air Con Heater Panel Control Unit 7N0907426CM

Product currently unavailable

Part no. 1K0820721C

VW Volkswagen Caddy Maxi 1.6 TDI Air Conditioning Hose A/C Pipe Line 1K0820721C

Product currently unavailable

Part no. 7N0907426Q

VW Volkswagen Passat B7 Sharan 7N Air Conditioning Air Con A/C Switch 7N0907426Q

Product currently unavailable

Part no. 5HB009751

VW Volkswagen Golf 6 Heater Climate Control A/C Unit Switch Panel 5HB009751

Product currently unavailable

Part no. 1J0820803L

VW Volkswagen New Beetle 1.9 TDI A/C Air Condition Compressor Pump 1J0820803L

Product currently unavailable

Part no. 7N0820411C

VW Sharan 7N Cooling Condenser Air Conditioning A/C 7N0820411C

Product currently unavailable

Showing 1-99 of 203 products

Air conditioning and heating systems – original parts for BMW, Audi, Mercedes and more

Compressors, heaters, hoses and regulators – comprehensive solutions for your comfort

Air conditioning and heating systems are systems that ensure travel comfort regardless of weather conditions. Air conditioning cools the vehicle interior on hot days, while the heating system provides warmth in winter. In modern cars, these systems are integrated, offering both convenience and safety by improving visibility through windshield defrosting. In the Global Parts automotive store, you will find a wide selection of used car parts for air conditioning and heating systems, such as compressors, evaporators, heaters, or condensers, perfectly matched to brands like BMW, Audi, Mercedes, Volkswagen, Mini, and many others. Our offer also includes components for specialized models, e.g., BMW E60 manual air conditioning, as well as a full range of heating and air conditioning systems for passenger and commercial vehicles. Each part is matched to a specific model, which guarantees compatibility and correct installation while maintaining optimal system performance.

How do air conditioning and heating systems work?

Air conditioning and heating systems are advanced systems that work together to provide ideal conditions inside the vehicle. Key elements of these systems include:

A/C compressors and clutches – responsible for compressing the refrigerant and maintaining the efficient operation of the air conditioning system.
A/C lines, hoses, and connectors – ensure the airtight transport of refrigerant between individual system components.
A/C controllers – control the operation of the cooling and heating system, allowing for precise temperature settings in the cabin.
Evaporators – responsible for heat exchange and cooling the air before it enters the vehicle interior.
Cabin and pollen filters – protect the vehicle interior from pollutants, dust, and allergens, improving air quality.
Condensers (radiators) – responsible for dissipating heat from the air conditioning system, enabling its effective operation.
Temperature sensors – monitor the internal and external temperature of the vehicle, ensuring automatic adjustment of the air conditioning operation.
Expansion valves – regulate the flow of refrigerant and its pressure in the air conditioning system.
Pressure switches – responsible for monitoring the refrigerant pressure level, protecting the system from damage.
Blowers and fans – responsible for air circulation in the cabin and even distribution of cool or warm air.
Heater control valves – control the flow of coolant to the heater core, ensuring effective cabin heating.
Heat exchangers – components responsible for efficient heat exchange between different systems in the vehicle.
Actuator motors – control the airflow in the air conditioning system, allowing for precise temperature regulation in the cabin. A functional air conditioning and heating system is a guarantee of comfort and safety during every journey.

Construction and purpose of air conditioning and heating systems

Air conditioning and heating systems are a set of components mounted in the engine compartment, the cowl area, and inside the blower housing. This system is used for cooling, heating, dehumidifying, and distributing air in the cabin. A typical system includes a compressor, condenser, evaporator, lines, valves, heater core, blower, and control elements. In practice, proper operation also depends on compatibility with the electrical system and Engine cooling systems.

Comparison of air conditioning and heating system components

Component	Main function	Installation location	What to check when selecting
A/C compressor	Compressing refrigerant and forcing circulation	Usually near the engine, on the belt drive	OEM number, connector type, pulley, mounting, engine version
Evaporator	Cooling and dehumidifying air	In the blower housing inside the vehicle	Housing dimensions, ports, compatibility with A/C version
Heater core	Heating air directed to the cabin	In the HVAC module under the dashboard	Port layout, housing type, body and equipment version
Control panel / regulator	Managing temperature, fan speed, and airflow direction	Center console	Manual or automatic version, number of buttons, connectors, OEM number

Refrigerant circulation and airflow control function

The refrigerant circuit is used to extract heat from the car interior and release it outside the vehicle. In the cooling section, the compressor increases the refrigerant pressure, the condenser dissipates heat, and the evaporator lowers the temperature of the air entering the cabin. The blower module, in turn, refers to the assembly of flaps, ducts, and actuators that direct the stream to the windshield, face, or feet. The cooperation of these elements depends on the efficiency of the sensors and compatibility with Automotive electrical systems.

Part selection and inspection points before installation

When choosing a component such as an Audi A4 B8 A/C compressor, it is worth comparing the OEM number, pulley type, mounting layout, and electrical connector type. When selecting a part for the HVAC system, one should check the engine version, body style, type of temperature control, and potential compatibility with Car interior equipment. In practice, replacement numbers, port positions, and sensor completeness also matter. For major repairs, it is worth simultaneously verifying the condition of lines, the receiver-drier, and elements from the Intake and fuel system category if their removal interferes with access to the part.

Examples of parameters and compatibility

Component	Typical parameters	Example models	Compatibility
Compressor	OEM number, connector type, pulley type, mounting points	BMW E60, Mercedes W202	To be checked by engine and equipment version
Heater core	Port layout, housing, compatibility with blower module	BMW E90, Audi A4	Manual and automatic heating systems
Evaporator	Connection layout, core dimensions, housing type	Volkswagen Passat B6, Mini Cooper	Selection by A/C version and OEM number

Why is it worth maintaining air conditioning and heating systems?

Regular maintenance and replacement of worn-out air conditioning and heating system components are the basis for comfort and reliability. A neglected system can lead to:

Inefficient cooling or heating of the vehicle interior.
Excessive windshield fogging, which reduces visibility and safety.
Unpleasant odors caused by contaminants in the system. At Global Parts, we offer used car parts that have undergone rigorous quality tests, ensuring their full functionality. Air conditioning and heating systems in modern vehicles often include automatic temperature control, meaning sensors monitor not only temperature but also air humidity and sunlight levels. An example is the BMW E60 manual air conditioning with an option for automatic adjustment of vents to the interior temperature, or Mercedes W202 air conditioning systems with airflow regulation depending on the selected program.

How to choose the right parts for air conditioning and heating systems?

When choosing parts for air conditioning and heating systems, such as compressors, heater cores, or evaporators, it is worth paying attention to:

Matching the vehicle model – Each car model has its own technical specifications. At Global Parts, you will find parts for air conditioning and heating systems perfectly matched to BMW, Audi, Mercedes, Volkswagen, Mini, and many others.
Technical condition – Used parts, such as A/C compressors or condensers, should be fully functional and ready for further use.
Type and performance of components – For example, A/C compressors should be adapted to the size of the vehicle and the expected performance. Additionally, it is worth paying attention to the type of system: manual, automatic, or hybrid. Manual systems, e.g., BMW E60 manual air conditioning, require simpler regulators, while automatic systems, found in the Mercedes W202, integrate temperature sensors, variable-speed fans, and electronic control valves. Installation and compatibility with other components, such as HVAC, vents, and blowers, are crucial for system efficiency.

Why is it worth choosing used parts for air conditioning and heating systems?

Used car parts are an excellent solution that allows you to combine savings with high quality. By choosing used components, such as heater cores, condensers, or fans, you gain:

Lower costs – Used parts are significantly cheaper than new ones but offer equally high quality.
Ecology – You support recycling, reducing the amount of automotive waste.
Wide availability – We offer parts for the most popular car brands, which makes it easier to find the right components. Thanks to used parts, you can also easily supplement rarer elements of air conditioning and heating systems for many passenger and commercial vehicle models. Maintaining full compatibility with HVAC systems allows for effective system operation and cost savings.

How to take care of air conditioning and heating systems?

To ensure air conditioning and heating systems work efficiently for years, it is worth remembering a few rules:

Regularly replace cabin filters – this ensures clean air in the cabin and more efficient system operation.
Check the condition of evaporators and condensers – contaminants can reduce the efficiency of the air conditioning system.
Service A/C compressors – regular inspection and refilling of refrigerant are crucial for system efficiency. In case of any problems with air conditioning or heating systems, at Global Parts you will find the right used auto parts that will help restore the vehicle's full functionality.

FAQ

Question	Answer
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.

Summary: air conditioning and heating systems at the Global Parts automotive store

Air conditioning and heating systems are an essential element of every vehicle, ensuring comfort and safety regardless of the weather. By taking care of their efficiency, you can enjoy a pleasant atmosphere in the cabin all year round. Global Parts offers used components for many brands and models, including BMW, Audi, Volkswagen, Mercedes, and Mini. Proper selection of parts by OEM number, car version, and equipment facilitates repair and maintains full system functionality. We invite you to contact us – we are here to help you! For more information and interesting facts, we also invite you to visit our automotive blog.

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