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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Suction Pipe BMW X5 E70 LCI X6 E71 N57 N57S Air Conditioning Pipe Hose 9221762

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Audi A5 8T A4 B8 Air Conditioning A/C Air Con Pipe Hose Line 8T0260701N

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Mercedes C117 X156 W176 Refrigerant Pipe Air Conditioning Line Hose A2468303515

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BMW E46 Air Conditioning Condenser Dryer Pressure Hose Assy 6904013

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Mercedes Sprinter W906 Air Conditioning A/C Air Con Hose Pipe Line A9068306300

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BMW E81 E87 E90 E91 E92 Suction Pipe Evaporator Compressor 6927846

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

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

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BMW X3 Series E83 Petrol M54 Air Conditioning Pipe Pressure Hose 3400414

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BMW X5 X6 E70 E71 M57N2 Air Conditioning Hose Tube Suction Pipe 6988881

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Mini Cooper R60 R61 Air Con Suction Pipe Hose Evaporator Compressor 9808024

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Mercedes W212 Air Conditioning Pipe A/C AC Hose Line A2078303015

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Mercedes C-Class W203 Air Conditioning Pressure Pipe Hose Expansion A2038302115

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BMW Z4 Series E85 Air Conditioning Condenser Dryer Pressure Hose Assy 9181863

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BMW E82 135i E90 E91 335i Pressure Hose Compressor Condenser 9163320

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BMW F20 F21 F30 F31 Pressure Hose Pipe Lines Air Conditioning Condenser 9213844

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Seat Leon Mk3 Audi A3 8V Air Conditioning A/C Air Con Pipe Hose Line 5Q2816738B

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Audi Volkswagen Seat Skoda Air Condition Con Pipe Hose Coolant 1K0820743BQ

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BMW 5 Series E60 M5 Pressure Hose Condenser Evaporator Air Con A/C Pipe 6927829

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BMW X5 Series E53 Air Con High Pressure Hose Pipe Compressor Condenser 6939464

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Mercedes Sprinter W906 Air Conditioning A/C Air Con Hose Pipe Line A9068306415

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Mercedes W213 Air Conditioning Hose Pipe A2138307200

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BMW 5 Series F10 F11 530d N57N Pressure Hose Assy Coolant Line R134A 9248522

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Audi RSQ3 F3 RS3 8V Air Conditioning A/C Hose Pipe Line 8V0816743

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

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Volkswagen VW Golf Mk8 Air Conditioning Hose A/C Pipe Line 5Q0816741B

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BMW 5 Series E60 E61 Diesel M57N Air Conditioning Con Coolant Hose Pipe 6911951

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

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BMW E90 E91 LCI N57 Pressure Hose Condenser Evaporator Lines 9209729

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Mercedes W205 Air Conditioning A/C Air Con Pipe Hose Line A2058305702

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BMW 1 3 Series F20 F21 F30 F31 LCI Pressure Hose Compressor Condenser 9337128

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Seat Ibiza 6J Air Conditioning A/C Air Con Pipe Hose Line 6R2820741AB

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

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BMW F20 F21 F30 F31 LCI Refrigerant Pressure Line Double Pipe Hose 9337124

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Audi A5 8T Air Conditioning Hose A/C Refrigerant Pipe Line 8T0260701M

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Air Con Pipe BMW X5 F15 X6 F16 Suction Hose Tube Compressor Evaporator 9252992

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BMW X3 E83 Pressure Hose Compressor Condenser Pipe 2.0d M47N2 3400402

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

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Pressure Hose BMW E81 E87 LN43 A/C Air Conditioning Con Pipe 9223326

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BMW E83 M54 Evaporator Compressor Suction Coolant Pipe Line 3400413

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BMW X5 X6 E70 E71 3.0d M57N2 Compressor Condenser Pressure Hose Line 6988880

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Mini Cooper One 1 R50 R52 R53 Evaporator Expansion Valve Adapter 6977581

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BMW E60 E61 Diesel M57N Air Con Pressure Hose Compressor condenser

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BMW Z4 Series E85 E86 Evaporator Compressor Suction Pipe 9181862

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Mini Cooper D R55 R56 R57 LCI Evaporator Compressor Suction Pipe Hose 9809006

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Volkswagen Golf Audi A3 8P Air Conditioning Pipe Hose Line A/C 1K0820741AT

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Audi A1 8X 1.4 TFSI CAVG A/C Refrigerant Climate Pipe Hose Line Tube 6R2820743AR

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

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BMW X5 E53 M57 3.0d Diesel Evaporator Compressor Suction Pipe 8377075

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Mercedes W221 Air Conditioning Coolant Suction Pipe Line Hose A2218306516

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Audi A5 8T Air Conditioning Pipe Refrigerant Hose Line Pipe A/C 8K0260710Q

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Mini R60 R61 Pressure Hose Condenser Evaporator Air Con Pipe 9806518

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Mercedes CLK W203 C209 Kompressor Air Conditioning Air Con Pipe Line A2712300556

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Hose Mercedes W177 Air Conditioning Refrigerant Compressor A/C Pipe A1778305701

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BMW Z4 Series E89 A/C Air Conditioning Hose Pipe Pressure Condenser 9224833

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

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BMW F40 Mini F55 F56 1 Air Conditioning Suction Pipe Hose Pipe 6834655

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BMW 5 Series E60 E61 Pressure Hose Condenser Evaporator Pipe Lines 6982864

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

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Audi A6 C6 Air Conditioning Refrigerant Sensor A/C Hose Pipe Line 4F0260707AF

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BMW 5 E60 E61 535d M57N Pressure Hose Condenser Evaporator Pipe Line 6982863

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BMW X1 F48 Mini F55 F56 F57 F60 B38 B48 Coolant Hose Pipe Line Tube 6832801

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Audi A4 B8 Coolant Air Conditioning Pipe A/C Hose Line Tube 8K2260712E

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Mini R56 LCI Diesel N47N Air Conditioning Hose A/C Pressure Pipe Line 4252605

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Skoda Octavia RS 1Z 2.0 TSI Turbocharger Water Coolant Pipe Hose 06J121492C

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Mini Cooper One R55 R56 D Diesel Suction Pipe Evaporator Compressor 9224861

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Audi A4 B7 Coolant Air Conditioning Pipe A/C Hose Line Tube 8E0260701BN

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BMW F10 F11 N47N N47S1 Pressure Hose Assy Coolant Line Diesel 4249892

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Air Conditioning Pipe Mercedes W204 W212 Refrigerant A/C Hose Line A2048304715

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Audi A5 8T Air Conditioning Hose A/C Pipe Line 8T0260701C

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

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BMW 7 Series E65 Air Conditioning Condenser Evaporator Coolant Pressure Hose

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Air Conditioning Pipe BMW F40 Mini F60 B48E A/C Refrigerant Hose Line 7939498

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Volkswagen Passat B7 Air Conditioning A/C Pipe Hose Refrigerant Line 3C0820721R

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

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Coolant Hose Mercedes CLA C118 W177 W247 M282 Cooling Pipe Line A1775017102

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

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BMW E63 E64 Air Condition A/C Pressure Hose Condenser Evaporator Pipe 6918240

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Audi A3 8V Seat Leon 5F VW Golf VII Air Conditioning Pipe A/C Hose 5Q0820741C

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Skoda Fabia Mk2 A/C Air Con Air Conditioning Pipe Hose Line 6R2820741T

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VW Golf Mk5 Skoda Octavia II Air Conditioning A/C Hose Pipe Line 1K0820743FG

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Audi A4 B9 A5 F5 Air Conditioning Hose A/C Pipe Refrigerant Line 8W0816741AL

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BMW 3 Series E90 E92 E93 LCI M3 Suction Pipe Evaporator Compressor Aircon AC

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Audi A3 8V VW Golf MK7 Seat Leon 5F A/C Air Conditioning Pipe Hose 5Q0816721B

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

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Mini F55 F56 F57 Pressure Hose Condenser Evaporator Pipe Lines 9209724

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

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Audi TT Mk2 8J 2.0 TFSI Air Conditioning Pipe Hose A/C Line 8J0820721F

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

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BMW 3 E46 Petrol M52 M54 A/C Compressor Condenser Pressure Hose 6908754

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Mercedes SLK R171 Air Conditioning A/C Pipe Hose Refrigerant Line A1718302415

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