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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Ford Focus Mk3 Radiator Air Duct Guide Cooling Deflector BM51-8312-AC

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Mercedes W177 W247 Air Conditioning Pipe Refrigerant Line Hose A/C A1778304501

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

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BMW X5 E70 A/C Air Condition Hose Pipe Line Tube 9182778

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Mercedes Benz W203 Cooling Coolant Water Hose A2038304796

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BMW 3 Series E90 E90N E92 E92N E93 LCI M3 Pressure Hose Compressor Condenser

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Compressor Condenser Pipe BMW E60 E63 Air Conditioning Pressure Hose 6921974

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

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

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Ford Transit Courier Air Conditioning Air Con Tube Hose Line Pipe ET71-19972-HB

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Renault Trafic 3 Vivaro B Air Conditioning Pipe Refrigerant Hose Line 924804190R

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Volkswagen Audi Seat Skoda Air Conditioning Pipe A/C Hose Line 5Q0820741B

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BMW 7 Series E65 E66 M57N Diesel 730d Coolant Water Hose Pipe 2354123

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

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Mercedes W204 Air Conditioning A/C C63 AMG Condenser Hose Pipe Line A2128306915

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Mercedes C W203 OM646 Fuel Injector to Tank Feed Lines Pipes Diesel A6460700532

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BMW 1 Series E81 E87 LCI N45N N46N Pressure Hose Compressor Condenser Pipe

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BMW X5 E70 LCI N57 Air Conditioning Line Pressure Hose Pipe 9221763

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Air Con Pipe VW Golf 8 Audi A3 8Y 2.0 TFSI Air Conditioning A/C Hose 5WA816743B

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Volkswagen Golf Mk6 Audi A3 8P Air Conditioning Pipe Hose Line A/C 1K0820741CN

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Audi A4 B8 A5 8T 3.0 TDI CJCB Diesel A/C Condition Pipe Hose Tube 8K0260707H

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Volkswagen Crafter MK2 Air Conditioning Hose A/C Pressure Pipe Line 7C0816721K

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Volkswagen VW Golf Mk6 Air Conditioning A/C Hose Pipe Line 1K0820743FP

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Mercedes S W220 S 320 CDI Air Conditioning Air Con Pipe Hose A6132300156

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Mercedes W168 Dashboard Dash Center Air Vent Grill Nozzle A1688300054

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Part no. 9113785

BMW 1 3 Series E82 E88 E90 E91 N53 Evaporator Compressor Suction Pipe 9113785

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Part no. 7C0816744B

Volkswagen Crafter MK2 Air Conditioning Hose A/C Pressure Pipe Line 7C0816744B

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Mercedes GLC X253 Air Conditioning Compressor Refrigerant Hose A2538306700

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Part no. A6132300456

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

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Mercedes Vito W447 Air Conditioning Condenser Compressor Pipe Line A4478307600

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Part no. 6950481

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

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Part no. A1635001372

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

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Part no. 2272935

Ford Puma Fiesta Mk8 Air Conditioning Pipe Hose 1.5 EcoBoost K1BH-19F618-AC

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Mercedes Sprinter W910 Air Conditioning Pipe Refrigerant Hose Line A9108300000

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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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Porsche Macan 95B Air Conditioning Refrigerant Pipe A/C Line 95B816720D

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

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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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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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Mercedes R170 Air Conditioning Hose Pipe Suction Line A1112303956

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

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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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Range Rover Evoque L538 Fuel Return Tube Pipe Line Hose GJ32-45611-AD

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BMW 3 Serie E46 Pressure Hose Compressor Condenser 8386845

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

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Air Conditioning Pipe Mercedes W177 W247 Refrigerant Line Hose A/C A1778305801

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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 Vito Viano W639 Air Conditioning Air Duct Channel Tube Rear A6398311745

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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 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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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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Ford Mondeo Mk4 S-Max Air Conditioning Pipe Hose 2.0 Diesel 9G91-19N601-BE

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Mercedes W204 C207 M271 Air Conditioning Pipe Line Refrigerant Hose A2048300615

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BMW E60 E61 LCI Suction Pipe Diesel Heater Air Conditioning 9184102

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

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BMW E65 E66 Pressure Hose Condenser Evaporator Air Conditioning Pipe 8385263

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

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BMW F80 M3 F82 F83 M4 Air Con Compressor Pressure Line Hose Pipe 9321310

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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 8U0820743C

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

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

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