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 E60 E60N E61 E61N Pressure Hose Condenser Evaporator PETROL

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Mini Cooper R50 R52 R53 Pressure Hose Assy 6761858

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VW Golf V Mk5 Skoda Octavia II Air Conditioning A/C Hose Pipe Line 1K0820743CB

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BMW E90 E91 E92 E93 LCI Air Conditioning A/C Pressure Pipe Hose Line N55 9221757

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

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

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

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BMW X5 Series E53 Hose Parking Heater Changeover Valve 6939160

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Mini Cooper R55 R56 LCI Diesel N47N Compressor Condenser Pressure Hose 9313848

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Audi RSQ3 F3 RS3 8V Air Conditioning A/C Hose Pipe Line 8V0820742

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

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BMW X3 Series E83 LCI DIesel 3.0d M57N2 Suction Pipe Evaporator Adapter Lead

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Part no. A2468301102

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

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Part no. 5WA816743B

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

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Part no. rhd-6R2820743E

Seat Ibiza 6J Condition Air Conditioning Pipe Hose A/C Line Condenser 6R2820743E

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Part no. 8U0820721M

Audi Q3 8U 2.0 TDI DFTA A/C Compressor Pipe Hose Line Tube 8U0820721M

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Part no. rhd-A2098300415-1

Air Conditioning Pipe Mercedes W209 Condenser Expansion Line A/C A2098300415

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MINI Cooper D R55 R56 R57 LCI 1 Evaporator Compressor Suction Pipe Hose 9809006

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Part no. A2058304003

Mercedes W205 Air Conditioning A/C Air Con Pipe Hose Line A2058304003

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Part no. 6942886

BMW E65 E66 M57N2 730d Compressor Condenser Pressure Hose 6942886

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Part no. 5Q0820743C

Audi VW Skoda Seat Air Conditioning Pipe A/C Air Con Hose Line 5Q0820743C

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Part no. 80A819203-1

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

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Part no. 9223322

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

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Part no. CPLA-19E932-AF

Range Rover Sport L494 A/C Air Conditioning Condenser Outlet Hose CPLA-19E932-AF

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Part no. 8409072

BMW X5 Series E53 M62 4.4i Petrol Evaporator Compressor Suction Pipe 8409072

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Part no. 8W0816743BL

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

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Air Conditioning Pipe Mercedes W166 Refrigerant A/C Hose Line A1668300215

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BMW F10 F11 LCI B47 Air Conditioning Coolant Suction Pipe Line 9321045

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Part no. 6C0820743AE

Seat Ibiza Mk4 Air Conditioning Line A/C Air Con Pipe Hose Petrol 6C0820743AE

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Part no. 8385266

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

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Part no. A2048305216

Refrigerant Hose Pipe Mercedes W204 W212 Air Con Condenser Line A2048305216

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Part no. A6398300115

Mercedes Vito W639 Air Con Refrigerant Pipe Conditioning Line Hose A6398300115

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Part no. A9068308600

Mercedes Sprinter W906 Air Conditioning A/C Air Con Hose Pipe Line A9068308600

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Part no. A2128302016

Condenser Line Mercedes W212 C218 Air Conditioning Refrigerant Pipe A2128302016

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Part no. 8K0260701N

Audi A5 8T Air Conditioning Pipe Refrigerant Hose Line Pipe A/C 8K0260701N

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Part no. 8J0820743F

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

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Part no. C1B1-19F618-DB

Ford Fiesta Mk7 Air Conditioning A/C Pipe Line Coolant Hose C1B1-19F618-DB

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

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Ford Fiesta Mk7 Air Conditioning A/C Pipe Line Hose 1.5 TDCi AV11-19972-JA

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Part no. A2218301316

Mercedes W221 Air Conditioning Coolant Suction Pipe Line Hose A2218301316

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Mercedes W203 Air Conditioning Duct Central Left N/S Channel Tube A2038320325

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BMW 5 Series E60 E61 LCI 520d N47 Condenser Evaporator Pressure Coolant Hose

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Part no. A2518301115

Mercedes W251 Air Conditioning Hose Pipe A2518301115

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Part no. A2058304805

Mercedes W205 Air Conditioning Pipe A/C Hose Line A2058304805

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Part no. 9203484

Coolant Hose BMW E90 E91 E92 Suction Pipe Evaporator Compressor 9203484

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Part no. 6913894

BMW E39 Air Conditioning Hose A/C Pipe Line Petrol Engine 6913894

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Part no. 9184101

BMW E60 E61 Pressure Hose Condenser Evaporator Pipe Lines 9184101

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Audi TT 8N A/C Air Conditioning Hose Pipe Line 3.2 8N2820741M

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Part no. RHD-8N2820741M

Audi TT 8N A/C Air Conditioning Hose Pipe Line 3.2 8N2820741M

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Volkswagen VW Golf Mk6 Air Conditioning A/C Hose Pipe Line 1K0820743FK

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Part no. rhd-A4478300902

Mercedes Vito W447 Air Conditioning Pipe Refrigerant Hose Line A/C A4478300902

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Volkswagen Golf GTI Mk4 Air Conditioning Refrigerant Pipe Line Hose 1J2820743M

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Part no. 9181834

Compressor Condenser Hose BMW E60 E63 Petrol N62N A/C Coolant Line 9181834

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Audi A6 C7 A7 4G Air Conditioning Pipe Refrigerant Hose Line Pipe 4G0260710P

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Mercedes R171 A/C Air Con Air Conditioning Pipe Hose Line A1718301615

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Mercedes W221 A/C Air Condition Radiator Pipe Hose Line Tube A2218300016

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BMW 3 Series E46 Compressor Condenser Pressure Hose Pipe 6916204

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Air Conditioning Hose BMW G20 Refrigerant Pressure Compressor Line 9395465

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Part no. RHD-A2218300216

Mercedes W221 A/C Air Conditioning Pipe Hose Line A2218300216

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Mercedes W906 OM651 A/C Air Condition Pipe Hose Refrigerant Line A9068303000

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Part no. 1K0820741BB

Skoda Octavia II Air Conditioning Hose A/C Pipe Line 1K0820741BB

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BMW X5 E53 3.0i Petrol Pressure Hose Compressor Condenser 8377077

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BMW 6 Series E63 E64 LCI M57N2 Diesel Pressure Hose Compressor-condenser 9181855

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Volkswagen Polo Mk5 A/C Air Con Conditioning Pipe Hose Line 6C0820741AD

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BMW E46 M3 Pressure Hose Air Conditioning A/C Compressor Condenser 6902681

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BMW E46 M3 Pressure Hose Air Conditioning A/C Compressor Condenser 6902681

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Part no. 9181833

BMW 5 6 Series E60 E61 E63 E64 M5 M6 Suction pipe Coolant lines A/C 9181833

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Part no. 5N0820743D

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

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Part no. 6C0820743AQ

VW Polo Mk5 Audi S1 8X A/C Air Con Air Conditioning Refrigerant Line 6C0820743AQ

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Part no. 8W0816721BF

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

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Skoda Yeti 5L A/C Air Condition Vent Outlet Nozzle Right O/S 5L0819702

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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. 42CP8-13

Mazda 6 GJ Air Conditioning Pressure Sensor A/C Control Sensor Switch 42CP8-13

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BMW 5 6 Series 1 E60 E63 E64 Petrol Engine Cooling Radiator Vent Pipe 2282955

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Audi Q3 8U Air Conditioning A/C Compressor Pipe Hose Line 2.0 TFSI 8U0820721N

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Audi A4 B8 A5 8T Air Conditioning A/C Air Con Pipe Hose Line 8T0260701D

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Volkswagen Audi Seat Skoda Air Conditioning Pipe A/C Hose Line 5Q0820743G

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BMW 3 X3 X5 E90 E91 E83 E70 LCI M57N2 Refrigerant Hose Pipe Cooling 7795135

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BMW 3 Series E90 E91 E92 M57N2 Evaporator Compressor Suction Pipe Hose 9177035

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Mercedes-Benz E CSL Class S211 W211 W219 Air Conditioning Hose Pipe A2118300215

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BMW 5 Series E60 E61 535d M57N Suction Pipe Line Air Conditioning 6934349

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BMW E90 E91 E92 335d M57N2 Compressor Condenser Pressure Hose Pipe 9209730

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Ford Focus Mk3 Air Conditioning Pipe Air Con Tube Line Hose A/C F1F1-19A834-FB

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Mercedes W204 A/C Air Condition Pipe Hose Refrigerant Line A9068301115

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Part no. rhd-A2138302002

Air Conditioning Pipe Mercedes W213 C238 Refrigerant A/C Hose Line A2138302002

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Mercedes W176 OM651 Compressor A/C Air Condition Condensor Pipe Hose A2468300202

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Mercedes GLC C253 X253 M274 Air Conditioning Pipe Compressor Hose A2538301200

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Part no. A9068306300-1

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

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Part no. 2Q0816721P

Volkswagen Polo Mk6 AW Air Conditioning Pipe A/C Hose Line 2Q0816721P

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Part no. 5Q0816743C

Audi A3 8V A/C Air Condition Pipe Hose Line Tube 5Q0816743C

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Part no. CPLA-8063-CB

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

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Part no. 9151740

BMW E90 E91 E92 LCI Pressure Hose Condenser Evaporator Pipe Lines 9151740

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Part no. 8U0820679

Audi Q3 8U 2.0 TDI DFTA A/C Condition Climate Expansion Valve 8U0820679

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Part no. 8U0820721J

Audi Q3 8U Refrigerant Hose Tube Line Pipe 8U0820721J 564681336

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Part no. 6946354

BMW E46 Pressure Hose Pipe Compressor Condenser 6946354

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Part no. RHD-2Q2816741K

Seat Arona KJ7 Air Conditioning Pipe Refrigerant Line Hose 2Q2816741K

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Part no. 6908908

BMW 3 Series E46 Dryer Evaporator Pressure Coolant Hose Pipe Assy 6908908

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Part no. 6826231

BMW X5 F15 Refrigerant Valve Shut-Off Air Conditioning 6826231

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Part no. A2128308115

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

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Part no. 5Q0816743AB

Skoda Octavia Mk3 Air Conditioning Hose A/C Air Con Pipe Line 5Q0816743AB

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Part no. AH22-19867-AD

Land Rover Discovery Sport L319 Air Conditioning Hose Pipe Line AH22-19867-AD

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