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

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

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BMW E90 E91 E92 335d M57N2 Compressor Condenser Pressure Hose Pipe 6976790

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Mercedes W177 Air Con Refrigerant Pipe Conditioning Line Hose A/C A1778305601

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Mini Cooper D R55 R56 R57 LCI R58 Evaporator Compressor Suction Pipe 925072

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Audi A3 8P Seat Leon Mk2 1P Air Conditioning Hose A/C Pipe Hose Line 1K0820743CD

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Audi A4 B7 Air Conditioning Pipe Refrigerant Hose Line 8E0260707AT

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

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Volkswagen Touran 1T Air Conditioning Hose A/C Pipe Line 1K0820721BN

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

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

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Pressure Hose BMW E90 E91 E92 LCI Compressor Condenser 9190452

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

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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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BMW X3 Series E83 LCI Pressure Hose Compressor Condenser 3415556

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Mercedes W177 M260 Windshield Washer Pipe Refrigerant Hose Line A1778684200

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

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Mini R50 Pressure Hose Pipe Air Conditioning Compressor Condenser W17 6982882

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BMW 7 E65 E66 Air Con Coolant Pressure Hose Condenser Evaporator Pipe 8385266

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

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BMW 7 Series E65 E66 Air Con Condenser Evaporator Pressure Hose Diesel 8385266

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

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

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BMW X5 E53 3.0i Petrol Pressure Hose Compressor Condenser 8377077

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

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Seat Ibiza 6J Air Condition Conditioning A/C Air Con Pipe Hose Line 6R0820721G

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Air Conditioning Hose BMW F13 N55 Refrigerant Pressure Compressor Line 9231050

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

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

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Compressor Hose Mercedes W163 W639 W220 Air Conditioning Pipe A1122301756

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

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Audi A5 F5 A/C Air Condition Compressor Hose Pipe Line Tube 8W0816721

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

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Mercedes R170 Air Conditioning Hose Pipe Suction Line A1112303956

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Mini Cooper S R52 R53 Pipe Air Con Pressure Hose Compressor Condenser Coolant

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BMW Mini Cooper R60 R61 Evaporator Compressor Suction Pipe 9802834

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Volkswagen Touareg 2.5 TDI Air Conditioning Hose A/C Pipe Line 7L6820744AE

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

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Air Conditioning Pipe Mercedes W204 W207 W212 Refrigerant Hose Line A2048300415

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Mercedes Vito W639 Air Con Refrigerant Pipe Conditioning Line Hose A6398300215

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BMW E60 E61 LCI Suction Pipe Diesel Heater Air Conditioning 9184102

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Air Conditioning Pipe Mercedes X156 W176 W246 A/C Coolant Hose Line A2468301102

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Mercedes C253 Air Conditioning A/C Hose Pipe A2538303301

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BMW E90 E91 E92 LCI N57 Pressure Hose Condenser Evaporator Pipe Lines 9190453

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

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Mercedes W176 A/C Air Conditioning Hose Pipe A1768300700

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Audi Q7 4L Air Conditioning Pipe Refrigerant Hose Line Pipe A/C 7L6820744BQ

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Air Conditioning Pipe BMW X3 F25 X4 F26 Refrigerant Pressure A/C Line 9382717

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Ford Transit Connect Air Conditioning Pipe Line Hose A/C F1F1-19N601-BC

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Nissan Qashqai Air Conditioning Pipe Refrigerant Hose Line 92490JD70B

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

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Mercedes Vito W639 Air Con Refrigerant Pipe Conditioning Line Hose A6398309115

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Air Duct Mercedes W210 Channel Cabin Ventilation Rear Central A2108314446

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BMW F40 F44 F45 Adapter Rear Compartment Footwell Air Duct 9350942

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

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Audi Q7 4M Q8 Mk2 VW Touareg Mk3 A/C Air Condition Hose Line Pipe 4M0816738M

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MINI Cooper One R55 R56 R57 Pressure Hose Pipe Evaporator Air Condition A/C

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

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Audi Q5 FY Rear Console A/C Heater Condition Air Vent Grille Nozzle 80A819203

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Mini Cooper One R60 R61 Air Conditioning Aluminium Double Pipe Hose 9802725

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

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BMW E90 E91 LCI N47N Compressor Condenser Coolant Pressure Hose 9226413

-15%

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BMW E90 E91 LCI N47N Compressor Condenser Coolant Pressure Hose 9226413

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VW Volkswagen Caddy Maxi 1.6 TDI Air Conditioning Hose A/C Pipe Line 1K0820721C

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Mercedes W246 M651 Air Conditioning Pipe Compressor Pipe A2468300215

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

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

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BMW E60 E61 LCI 520d N47 A/C Pressure Hose Pipe Compressor-Condenser

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Mercedes Sprinter W910 Air Conditioning Pipe Refrigerant Hose Line A9108300000

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Volkswagen Golf Mk5 Audi A3 8P Air Conditioning Pipe Hose Line 1K0820741BC

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BMW 3 Series E46 M47N Compressor Condenser Pressure Hose Line 6905645

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BMW E81 E82 E87 LCI N43 Petrol Pressure Hose Compressor Condenser Pipe 9223322

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BMW X3 Series E83 N46 2.0i Air Con Compressor Evaporator Suction Pipe 3400419

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Range Rover Sport L494 A/C Air Conditioning Pipe Hose Line FPLA-19N602-AD

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

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Mercedes W212 Air Conditioning A/C Air Con Condenser Hose Pipe Line A2048301116

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BMW E65 E66 Pressure Hose Condenser Evaporator Air Conditioning Pipe 8385263

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

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BMW E60 E61 525d 530d Pressure Hose Compressor Condenser 9119700

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

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Mercedes Vito W639 Air Con Refrigerant Pipe Conditioning Line Hose A6398300215

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Mini F55 F56 F57 F60 Pressure Hose Compressor Pipe 9209726

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

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Mercedes GLC X253 Air Conditioning Compressor Refrigerant Hose A2538306700

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

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

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