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 GLC X253 Air Conditioning Compressor Refrigerant Hose A2538306700

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

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BMW Z4 Series E85 Air Conditioning Condenser Dryer Pressure Hose Assy 6950481

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Mercedes ML W163 270 CDI Air Con Compressor Pressure Line Hose Pipe A1635001372

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

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BMW 5 Series E60 E61 535d M57N Pressure Hose Compressor Condenser Pipe 6934350

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Mercedes-Benz C W203 M271 Petrol Air Conditioning Compressor Pipe A2712030502

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

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Air Conditioning Pipe Renault Trafic 3 Vivaro B Refrigerant Hose Line 924403508R

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

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BMW 5 Series E60 E61 M47N2 Compressor-condenser Pressure Hose Diesel 6911952

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BMW 5 Series E60 E61 M47N2 Compressor-condenser Pressure Hose Diesel 6911952

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Non-Return Valve BMW i3 I01 Electric A/C Air Conditioning Pipe Hose 9292574

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Non-Return Valve BMW i3 I01 Electric A/C Air Conditioning Pipe Hose 9292574

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Nissan Qashqai Air Conditioning Pipe Refrigerant Hose Line 92490JD70B

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BMW 7 Series E65 E66 Pressure Hose Condenser Evaporator Pipe 8385263

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

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Nissan Qashqai J10 2.0dCi Air Conditioning Pipe Refrigerant Hose Line 92480JD70B

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

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Air Conditioning Pipe Mercedes CL203 W209 A/C Hose Refrigerant Line A6462300456

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Audi A3 8V VW Golf VII Air Conditioning Refrigerant Hose Line 5Q0816721AA

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Audi A4 B7 A/C Air Condition High Pressure Pipe Hose Line Tube 8E0260710H

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

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Mercedes Sprinter W910 Air Vent Grill Outer Front A9108303201

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Audi A4 B9 A4 S4 8W A5 S5 F5 Air Conditioning AC Pipe Hose Line Tube 8W0816741AK

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Skoda Octavia II Air Conditioning Hose A/C Pipe Hose Line 1K0820743CC

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

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Audi A4 B7 High Pressure A/C Air Condition Line Tube Pipe Hose Line 8E0260707BH

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Ford Kuga Mk1 Air Conditioning Pipe Line Hose 2.0 TDCi AV41-19N601-AC

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BMW Z4 E85 Cover Fresh Air Outlet Grille Left Vent N/S Black 6917905

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Air Conditioning Pipe Mercedes W204 W207 W212 Refrigerant Hose Line A2048300415

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

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

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BMW 5 6 Series E60 E63 E64 LCI Petrol Engine Cooling Radiator Vent Pipe 7565779

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

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

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Radiator Vent Pipe BMW E65 740i 750i N62N Petrol Engine Cooling Hose 7534527

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Mercedes W251 Air Duct Channel Cabin Front Centre Tube A2518311345

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

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BMW X3 E83 Dryer Evaporator Pressure Coolant Hose Pipe Assy 3400430

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

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Volkswagen Tiguan 5N Air Conditioning Hose A/C Pipe Line 5N0820743D

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Audi Q5 FY Coolant Air Conditioning Pipe A/C Cooling Hose Line Tube 80A816721

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Mercedes Sprinter W910 Front Air Vent Grill A9108303201

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Mercedes Sprinter W910 Front Air Vent Grill A9108303201

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Audi Q3 SE Air Conditioning Pipe Hose Line A/C 8U0820721G

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Air Conditioning Pipe BMW F07 GT F10 F11 Refrigerant Suction Hose Line 9175326

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VW Volkswagen Golf 7 1.6 TDI Heater Blower Fan Motor Resistor 5Q0907521E

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BMW E90 E91 E92 LCI Pressure Hose Condenser Evaporator Pipe Lines 9151739

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Audi A6 C6 Air Conditioning A/C Hose Pipe Line 4F0260707AB

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BMW F20 F21 F30 LCI Pressure Pipe Hose Condenser Evaporator 9337127

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Air Conditioning Pipe Mercedes W166 C292 Refrigerant A/C Hose Line A1668300200

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Air Conditioning Pipe BMW F40 Mini F60 B48E A/C Refrigerant Hose Line 9490509

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Seat Ibiza Mk4 Air Conditioning Line A/C Air Con Pipe Hose Petrol 6C0820741AB

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

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Ford Transit Custom MK8 A/C Air Conditioning Hose Pipe Line GK21-19D850-AH

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Audi Q3 8U Coolant Air Conditioning Pipe A/C Hose Line Tube 8U0820741D

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Mercedes W221 Pressure Hose Pipe Air Conditioning Condenser A2218302117

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Audi A5 S5 8T Air Conditioning Pipe Refrigerant Hose Line Pipe A/C 8K0260710H

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VW Caddy Maxi 2k Air Conditioning Refrigerant Hose Tube Line Pipe 2K0816721C

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Mercedes W177 W247 Air Conditioning Pipe Refrigerant Line Hose A/C A1778309802

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BMW F40 F44 F45 Adapter Rear Compartment Footwell Air Duct 9350942

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Mercedes Sprinter W910 Air Vent Grill Front A9108303201

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Air Conditioning Hose BMW F13 N55 Refrigerant Pressure Compressor Line 9231050

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Audi A3 8V 2.0 TDI Air Conditioning Pump Compressor Unit 5Q0820803F

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Air Conditioning Dryer Renault Trafic II Air Con Tank Pressure Sensor 8200468518

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BMW 5 6 Series E60 M5 E63 E64 M6 Pressure Hose Compressor Condenser 927828

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

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Air Conditioning Pipe Mercedes R231 M157 Refrigerant A/C Hose Line A2318300015

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Air Duct Mercedes W205 W213 C238 Channel Cabin Front Right O/S A2058319800

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

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Audi A1 8X Coolant Air Conditioning Pipe A/C Hose Line Tube 6R0820721H

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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 A4 B9 Air Conditioning Pipe A/C AC Hose Line 8W0816738Q

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BMW 6 E63 E64 LCI 635d M57N2 Condenser Evaporator Pressure Hose Pipe 9155353

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Mercedes W176 Diesel Air Con Compressor Condenser Pipe Line A2468301302

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MINI Cooper One D R55 R56 LCI N47N Fuel Injection System Hose Pipe 7823487

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

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

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A/C Pressure Air Pipe BMW G12 G30 G32 Evaporator Compressor Air Con Pipe 9321597

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Volkswagen Touareg 7L Air Conditioning Hose A/C Pipe Line 3.0 TDI 7L6820750L

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Air Duct Mercedes W205 C253 Channel Cabin Ventilation Rear Left N/S A2058311145

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BMW F40 Rear Compartment Ventilation Air Duct 6823327

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VW Volkswagen LT 35 Air Conditioning Hose Refrigerant A/C Pipe 2D0820721A

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

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Audi TT 8J Air Conditioning Pipe Refrigerant Hose Line Pipe A/C 8J0820741F

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