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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Mini R55 R56 R57 LCI Pressure Hose Condenser Evaporator Pipe Lines 9230693

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

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BMW 1 Series E87 118d 120d M47N2 A/C Air Pipe Hose Compreswsor Condenser 6959992

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BMW 5 6 Series E60 M5 E63 M6 Compressor Condenser Suction Pipe Adapter 6932266

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BMW E60 E61 LCI Air Conditioning Pipe A/C Air Con Hose Pipe Line 9119703

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Refrigerant Hose Pipe Mercedes Vito W639 Air Conditioning Condenser A6398303800

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BMW F20 F21 F30 F31 LCI AC Air Con Hose Pipe Conditioning Pressure 9337129

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BMW E90 E91 335d M57N2 Compressor Condenser Pressure Hose Pipe 6976790

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

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BMW 5 Series E60 LCI E60 E61 Pressure Hose Compressor Condenser Petrol 6920356

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Audi S3 8Y Air Conditioning Pipe A/C Hose Line Tube 5Q0816741C

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Mercedes GLC X253 Air Conditioning Compressor Hose A/C Line A2538303001

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Mini Cooper R55 R56 LCI Diesel N47N Compressor Condenser Pressure Hose 9313848

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Refrigerant Hose Pipe Mercedes Vito W639 Air Conditioning Condenser A6398303600

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Air Conditioning Pipe BMW F40 X1 F48 MINI F55 F56 F60 A/C AC Hose Line 9869634

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Audi A5 F5 A/C Air Condition Coolant Hose Line Refrigerant Hose Line 8W6816738B

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Mercedes Vito W639 Air Conditioning A/C Air Con Condenser Hose Pipe A6398300816

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BMW 3 Series E46 Air Condition Evaporator Compressor Suction Pipe Hose 6923956

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Audi A6 C6 Coolant Air Conditioning Pipe A/C Hose Line Tube 4F0260740B

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BMW Mini Cooper One R55 R56 Air Conditioning Aluminium Double Pipe 2758225

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BMW E90 E91 Air Conditioning Hose A/C Pressure Pipe Compressor 6928597

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BMW E81 E87 E90 E91 Pressure Hose Pipe Condenser Air Con 9151733

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Pressure Hose Mercedes W212 Pipe Line Air Conditioning A/C Condenser A2128305515

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Audi A3 8V Air Conditioning Refrigerant Hose Compressor Line 5Q0816721A

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Audi A6 C6 Air Con Pipe Conditioning Hose A/C Line 4F0260701C

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Audi A4 B9 A5 F5 Air Conditioning Hose A/C Pipe Refrigerant Line 8W0816721BF

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Audi A8 D4 4H Rear Heater Matrix Connecting Pipes 4H0898037D

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Peugeot 307 Air Conditioning Pipe A/C Air Con Line Hose 9647878780

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A/C Pipe BMW F40 F48 X1 Mini F55 F56 F60 Air Con Suction Hose Line 6834655

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Land Rover Discovery 4 L319 Air Conditioning Hose Pipe Tube Line LR013861

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BMW Mini Cooper R55 R56 R57 Evaporator Compressor Coolant Suction Pipe 2751473

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Audi A1 8X Air Conditioning Compressor Sensor A/C Hose Pipe Line 6C0816743N

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Peugeot 3008 Air Conditioning A/C Refrigerant Pipe Hose Line 9684368380

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

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Adapter Lead Cable BMW E92 LCI Active Pedestrian Protection E93 LCI 9274699

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