What is the construction and purpose of air conditioning lines, hoses, and connectors?

Air conditioning lines, hoses, and connectors are elements connecting the main components of the car's air cooling system. They consist of aluminum sections, flexible parts, mounting ends, and seals, and their task is to guide the refrigerant between the compressor, condenser, evaporator, and receiver-drier. They are located mainly in the engine compartment and near the bulkhead. Their construction depends on the engine version, body, and vehicle equipment.

What are air conditioning lines, hoses, and connectors used for?

Air conditioning lines, hoses, and connectors are used to maintain an airtight circulation of refrigerant and oil throughout the system. They are responsible for the proper flow of the medium on the high and low-pressure sides, as well as for the safe connection of components. Without their proper operation, the air conditioning loses efficiency, and the compressor may operate under improper conditions. It is these elements that determine pressure stability and the effectiveness of interior cooling.

What is the construction and function of an air conditioning connector?

An air conditioning connector is a connecting element that links a line with another system component, such as a compressor, condenser, or evaporator. Its construction includes a socket, a line end, and a surface working with an O-ring or other seal. The connector serves to ensure tightness under pressure and thermal load. Depending on the car's construction, it may differ in diameter, thread type, or mounting profile.

How to choose an air conditioning line for a specific car?

It is safest to compare the OEM number, interchangeable numbers, line routing, and type of ends. It is also worth verifying the fuel type, engine version, and location on the vehicle, because visually similar parts may have different mounting points. If the car was available in pre-facelift and facelift versions, it is good to also check the structural differences of the equipment.

What symptoms indicate damage to an air conditioning line or connector?

The most common symptoms are a drop in cooling performance, refrigerant loss, traces of oil at the connections, and uneven compressor operation. In practice, you can also notice corrosion of aluminum sections, abrasions of the flexible part, or damaged brackets guiding the line. Such signals mean that it is worth checking the tightness of the entire circuit.

How to take care of air conditioning lines, hoses, and connectors after installation?

After installation, pay attention to the correct positioning of the line, the absence of tension on the ends, and the condition of the seals. An incorrectly routed element can rub against other parts of the engine compartment and eventually become damaged. A good practice is also to check the system's tightness after repair and periodically inspect the connection points.

Air conditioning hoses, pipes and connectors

At Global Parts, we offer a wide selection of original used car parts, including air conditioning hoses, lines, and connectors for many popular car brands such as BMW, Mini, Mercedes, Audi, Volkswagen, and others. Each of our car parts undergoes quality control to ensure you receive a top-quality product.

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Mercedes-Benz E-Class W210 320 CDI Secondary Water Pump Hose Line A2108327194

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

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

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Mercedes W221 Air Conditioning Coolant Suction Pipe Line Hose A2218301316

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

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

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Mercedes-Benz E-Class W210 M112 240 280 320 Air Conditioning Compressor Pipe

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Air Conditioning Mercedes W213 Compressor Condenser Refrigerant Hose A2138307904

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

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Air Conditioning Pipe Mercedes X156 W176CW246 A/C Coolant Hose Line A2468301202

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Mercedes Vito W639 Air Con Refrigerant Pipe Conditioning Line Hose A6398309115

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Mercedes W210 Air Duct Channel Cabin Front Left N/S Tube A2108311346

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Mercedes Sprinter W906 Air Conditioning A/C Air Con Hose Pipe Line A9068306315

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

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Mercedes C207 M272 Petrol A/C Air Condition Hose Line Tube Pipe A2048301215

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Mercedes C207 M272 Petrol A/C Air Condition Hose Line Tube Pipe A2048301215

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Mercedes Vito W639 Air Con Refrigerant Pipe Conditioning Line Hose A6398300215

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Mercedes C253 Air Conditioning A/C Hose Pipe A2538303301

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Mercedes ML W164 GL X164 Air Conditioning Compressor Condenser Pipe Line

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Mercedes W251 Air Conditioning Hose Pipe A2518301115

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Mercedes Vito W639 Heater Water Hose Pipe Line Diesel Engine A6398329223

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Mercedes Vito W639 Heater Water Hose Pipe Line Diesel Engine A6398329223

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Refrigerant Hose Pipe Mercedes Vito W639 Air Conditioning Condenser A6398303600

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Refrigerant Hose Pipe Mercedes Vito W639 Air Conditioning Condenser A6398303500

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Refrigerant Hose Pipe Mercedes Vito W639 Air Conditioning Condenser A6398303800

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BMW G20 G21 Air Conditioning Pipe A/C Coolant Hose Line 9395479

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Mercedes W212 Air Conditioning Pipe A/C AC Hose Line A2078303015

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Mercedes W211 A/C Air Condition Line Tube Pipe Hose A2118303515

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Mercedes-Benz M-Class ML W163 Expansion Tank Recirculating Pump Coolant Hose

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Air Con Mercedes W213 Refrigerant Hose Compressor To Condenser A2138308604

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Mercedes W447 OM654 Air Conditioning A/C Pipe Hose Refrigerant Line A4478307700

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Mercedes W447 Air Conditioning Refrigerant Pipe Hose A4478304901

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Mercedes A W168 Air Conditioning Compressor Condenser Pipe Line A1688302415

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Mercedes W164 Intercooler Charge Air Cooler Radiator Diesel W251 A2515000000

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Air Conditioning Pipe Mercedes W203 W209 M112 Refrigerant Hose A/C A1122303856

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Refrigerant Hose Pipe Mercedes W204 W212 Air Con Condenser Line A2048301216

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