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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BMW E60 E61 Diesel M57N Air Con Pressure Hose Compressor condenser

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Audi TT 8J Air Conditioning Pipe Refrigerant Hose Line Pipe A/C 8J0820719F

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Mercedes Vito W639 Air Con Refrigerant Pipe Conditioning Line Hose A6398309115

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

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

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

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Land Rover Discovery Sport L550 Air Conditioning Pipe Hose Line HJ32-19E932-AB

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

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BMW 3 4 Series F80 M3 F83 M4 Engine Supply Coolant Pipe Hose 9307240

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Refrigerant Hose Pipe Mercedes Vito W639 Air Conditioning Condenser A6398303800

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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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Nissan Qashqai Air Conditioning Pipe Refrigerant Hose Line 92490JD70B

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BMW 3 Series E46 Dryer Evaporator Pressure Hose Line Pipe Assy Coolant 6909448

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Audi A5 8T Refrigerant Pipe Air Conditioning Line Hose 8T0260710G

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Skoda Octavia 5E 1.6 TDI CLHA A/C Air Condition Pump Compressor 5Q0820803B

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BMW 7 Series E65 Air Conditioning Condenser Evaporator Coolant Pressure Hose

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Audi Q7 4L 3.0 TDI Air Conditioning Hose A/C Pipe Line 7L6820744BD

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BMW F20 F30 Pressure Hose Pipe Line Air Conditioning A/C Condenser 9212081

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VW Volkswagen Touran MK1 Air Conditioning Refrigerant A/C Pipe Hose 1T0820743AC

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

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VW Touran 1T Air Conditioning Hose A/C Refrigerant Pipe Line 1T0820743AQ

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Air Conditioning Pipe Audi A4 B8 Refrigerant Hose Line Pipe A/C 8K0260701

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BMW U06 X1 U11 Air Conditioning A/C Pressure Hose Line Pipe 5A27125

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Ford Ranger Wildtrak Mk1 Air Conditioning Pipe Line A/C 3.2 TDCI EB3B-19C700-JC

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BMW 7 Series E65 E66 N62 Petrol Compressor Condenser Pressure Hose 8379836

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BMW E90 E91 N47 Air Con Compressor Condenser Pressure Hose 9223319

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VW Volkswagen Touran 1T Air Conditioning Hose A/C Pipe Line 1T0820741AL

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Audi A4 B8 Air Conditioning Pipe Refrigerant Hose Line Pipe A/C 8K0260710N

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Audi A4 B9 Air Conditioning Pipe Refrigerant Hose Line Pipe A/C 8W0816743BL

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Volkswagen Touareg 7L Air Conditioning Hose A/C Pipe Line 2.5 TDI 7L6820750M

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

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BMW X3 Series E83 LCI Pressure Hose Compressor Condenser 3415556

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

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BMW 3 Series E46 Petrol M52 M54 Compressor Condenser Pressure Hose 6908754

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BMW F01 F10 F11 Air Conditioning Pipe Pressure Hose A/C Line N57 N57S 4254217

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BMW 1 3 F20 F21 F30 F31 N13 Suction Pipe Evaporator Compressor Air Hose Petrol

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Audi Q3 8U Refrigerant Coolant Hose Line Pipe Tube 8U0816741F

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Air Duct BMW F12 F13 Cover Channel Rear Right O/S Trim Cabin Interior 7230044

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BMW F40 Air Conditioning Pipe A/C Refrigerant Coolant Hose Line 4A043A5

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BMW 5 Series E60 E61 Suction Pipe Hose Steering Dynamic Drive 6761509

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Mercedes Vito W639 Heater Water Hose Pipe Line Diesel Engine A6398329223

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

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MINI Clubman Cooper S R55 R56 R57 R58 1 Engine Coolant Hose Pipe 2754220

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Ford Transit Courier Air Con Conditioning Pipe Hose Tube Line ET71-19F618-HA

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BMW Mini Cooper S R52 R53 Air Conditioning Suction Pipe Hose Evaporator 6946620

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Ford Ranger MK3 Air Conditioning Hose Pipe Line EB3B-19N602-HD

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Air Conditioning Pipe Renault Master 3 Movano B Pressure Hose Line 924543191R

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Air Conditioning Pipe Renault Master 3 Movano B Pressure Hose Line 924904471R

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Air Conditioning Pipe BMW E90 E91 LCI N57 Pressure Hose Evaporator Line 9190453

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Mercedes W204 W212 Air Conditioning Pressure A/C Pipe Hose Line A2048305316

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Citroen Relay III 35L Air Conditioning A/C Pipe Hose Line Diesel 46861282

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Audi A3 8V Air Conditioning Refrigerant Hose Compressor Line 5Q0816721AG

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Audi A5 8T Coolant Air Conditioning Pipe A/C Cooling Hose Line Tube 8K0819377E

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

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Air Conditioning Pipe Renault Trafic 3 Vivaro B Refrigerant Hose Line 924907582R

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BMW X5 E70 Refrigerant Hose Pipe 3.0si N52N Cooling System Line Petrol 7561686

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Air Conditioning Pipe Mercedes W176 Refrigerant Line Compressor Hose A2468302115

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Audi A4 B8 Air Conditioning Pipe Refrigerant Hose Line Pipe A/C 8K0260701D

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

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Mercedes W177 M260 Windshield Washer Pipe Refrigerant Hose Line A1778684200

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Mercedes W163 270 CDI Air Con Conditioning Cooler Condenser Pipe Hose

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BMW 5 6 Series 1 E60 M5 E63 M6 Pressure Hose Assy Pipe 7835411

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BMW E65 E66 M57N2 730d Compressor Condenser Pressure Hose 6942886

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