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

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

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

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VW Volkswagen Touran 1T Air Conditioning Hose A/C Pipe Line 1T0820741AB

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Audi Q3 F3 Air Con A/C Air Conditioning Pipe Refrigerant Hose Line 5QF816741B

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

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Mercedes W168 Dashboard Dash Center Air Vent Grill Nozzle A1688300054

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

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Mercedes W176 A/C Air Conditioning Hose Pipe A1768300700

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

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

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BMW 5 Series E60 E61 Pressure Hose Compressor Condenser 6911950

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Air Duct Mercedes W210 Channel Cabin Ventilation Rear Central A2108314446

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Part no. CPLA-8063-DD

Range Rover L405 Air Conditioning A/C Hose Pipe Line CPLA-8063-DD

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

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Part no. 6988880

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

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

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

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

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

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BMW G20 G21 Air Conditioning Pipe A/C Coolant Hose Line 9395479

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

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BMW E60 E61 LCI Suction Pipe Diesel Heater Air Conditioning 9184102

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Part no. 5WA816721

Audi A3 8Y A/C Compressor Pipe Hose Line Tube 5WA816721

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Part no. A1408300072

Mercedes-Benz E W211 Air Conditioning AC A/C Pressure Switch Sensor A1408300072

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Part no. A2118303915

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

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Part no. A2468301102

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

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Ford Transit Connect Air Conditioning Heater Hose Pipe Tube Line DV61-19N601-BB

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

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Part no. 8E0260701BS

Audi A4 B7 Pressure Air Pipe Evaporator-Compressor Air Con Pipe 8E0260701BS

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Mercedes W176 W246 Air Conditioning A/C Radiator Pipe Diesel A2468303115

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Mercedes W205 Air Conditioning Pipe A/C Hose Line A2058304805

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Part no. 924403508R

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

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Mini R52 R53 Supercharger Water Pump Coolant Crossover Line Pipe 7514550

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Part no. 5Q0820803E

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

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

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Mercedes W221 Pressure Hose Pipe Air Conditioning Condenser A2218302117

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

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Range Rover L322 A/C Air Con Air Conditioning Pipe Hose Line 4H42-19972-AA

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BMW E65 E66 Pressure Hose Condenser Evaporator Air Conditioning Pipe 8385263

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

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

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

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

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

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Air Conditioning Pipe BMW E60 E61 Pressure Hose Evaporator Line Hose 6910803

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Volkswagen VW Golf Mk5 Seat Leon Mk2 Air Conditioning Pipe Hose Line 1K0820743FA

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BMW 3 Serie E46 Pressure Hose Compressor Condenser 8386845

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

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Mercedes W205 OM654 A/C Air Con Air Conditioning Pipe Hose Line A2058300006

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Part no. A2058300006

Mercedes W205 OM654 A/C Air Con Air Conditioning Pipe Hose Line A2058300006

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Compressor Condenser Pipe BMW E60 E63 Air Conditioning Pressure Hose 6921974

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

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

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Pressure Hose BMW E60 E61 LCI N53 Condenser Evaporator Pipe Lines 9181852

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

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Ford Fiesta Mk7 Air Conditioning Pipe Line Hose A/C C1B1-19A704-DA

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

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

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BMW E46 M47N Intercooler Pipe Air Charge Line Intake Manifold 7786865

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Mini F56 BMW F44 F45 A/C Air Con Air Conditioning Pressure Hose Line 9869635

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Coolant Line BMW X3 E83 LCI 3.0sd Pressure Hose Compressor Condenser 3455911

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Mercedes Vito W639 Air Con Refrigerant Pipe Conditioning Line Hose A6398309115

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Mercedes Vito W639 Air Con Refrigerant Pipe Conditioning Line Hose A6398300215

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

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Mercedes GLC X253 Air Conditioning Compressor Refrigerant Hose A2538306700

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

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Volkswagen Crafter 2E Air Conditioning Hose A/C Pipe Line 2E0820721J

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

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Mercedes GLE W166 Air Conditioning A/C Air Con Hose Pipe Line A1668302201

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Mercedes W204 Air Conditioning Pipe Refrigerant Line Hose A/C A2128308115

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Mercedes C253 Air Conditioning A/C Hose Pipe A2538303301

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

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

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Ford Kuga Mk1 A/C Air Con Conditioning Pipe Hose Line 2.0 TDCI AV41-19N602-AF

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Mercedes Vito W639 Air Con Refrigerant Pipe Conditioning Line Hose A6398307115

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Audi A3 8P VW Golf Mk6 Air Conditioning Pipe A/C Hose Line 1K0820721BK

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Air Conditioning Pipe Mercedes W204 M271 Compressor Condenser Refrigerant Line

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

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

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BMW Mini Cooper S R52 R53 Pipe Air Con Pressure Hose Compressor Condenser Coolant 6985706

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

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

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Mercedes C207 M272 Petrol A/C Air Condition Hose Line Tube Pipe A2048301215

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Air Con Mercedes W213 Refrigerant Hose Compressor To Condenser A2138308604

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

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

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BMW F80 M3 F82 M4 Water Cooling Radiator Coolant Hose Line 2284690

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Audi A6 C8 Refrigerant Hose Pipe Air Con Condenser Line A/C 4K0816743DB

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

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VW Volkswagen Tiguan 5N Air Con Conditioning A/C Hose Pipe Line 5N0820721G

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BMW 7 Series E65 Air Conditioning Condenser Evaporator Coolant Pressure Hose

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

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

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

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

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Mercedes Sprinter W910 Air Vent Grill Outer Front A9108303201

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BMW E90 E91 E92 335d M57N2 Evaporator Compressor Suction Pipe 6976791

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Audi A3 8P Volkswagen Golf Mk5 Air Conditioning Hose A/C Pipe Line 1K0820741BD

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

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