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.

More information

Find it faster

Match to your vehicle

Make

Audi Q7 4L Air Conditioning A/C Air Con Pipe Hose Line 4L0820739

PLN 46.95

Part no. 8K0260707N

Audi A5 S5 8T Air Conditioning Air Con Pipe A/C Hose Line 4.2 FSI 8K0260707N

PLN 189.95

Part no. 7L6820743F

Audi Q7 4L Air Condition Con Pipe Hose Coolant 7L6820743F

PLN 42.95

Part no. 8R0819334E

Audi Q5 8R Water Heater Connecting Pipe Hose Line 8R0819334E

PLN 80.95

Part no. 8P0819681

Audi A3 8P Air Conditioning Compressor Sensor Dashboard A/C 8P0819681

PLN 46.95

Part no. 5Q0816743E

Audi A3 S3 8V Air Conditioning Hose A/C Air Con Pipe Line 5Q0816743E

Product currently unavailable

Part no. 5Q0816741C

Audi S3 8Y Air Conditioning Pipe A/C Hose Line Tube 5Q0816741C

Product currently unavailable

Part no. 1K0820721BQ

Volkswagen Touran 1T Golf 6 Audi A3 8P Air Con Pipe A/C Hose Line 1K0820721BQ

Product currently unavailable

Part no. 8W6816738B

Audi A5 F5 A/C Air Condition Coolant Hose Line Refrigerant Hose Line 8W6816738B

Product currently unavailable

Part no. 5Q0816721A

Audi A3 8V Air Conditioning Refrigerant Hose Compressor Line 5Q0816721A

Product currently unavailable

Part no. 4F0260740B-1

Audi A6 C6 Coolant Air Conditioning Pipe A/C Hose Line Tube 4F0260740B

Product currently unavailable

Part no. 80A816721

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

Product currently unavailable

Part no. 8W0816738Q

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

Product currently unavailable

Part no. 6C0816743N

Audi A1 8X Air Conditioning Compressor Sensor A/C Hose Pipe Line 6C0816743N

Product currently unavailable

Part no. 8W0816721BF

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

Product currently unavailable

Part no. 4H0898037D

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

Product currently unavailable

Part no. 8J0820743F

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

Product currently unavailable

Part no. 8W0816721AS

Audi A4 S4 8W A5 S5 F5 Air Conditioning Coolant Line Hose Tube Pipe 8W0816721AS

Product currently unavailable

Part no. 8J0820721J

Audi TT 8J Air Conditioning Refrigerant Hose Compressor Condenser 8J0820721J

Product currently unavailable

Part no. 8K0819377E

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

Product currently unavailable

Part no. 1K0820741BD

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

Product currently unavailable

Part no. 1K0820743CD

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

Product currently unavailable

Part no. 8U0820741D

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

Product currently unavailable

Part no. 4K0816743DB

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

Product currently unavailable

Part no. 1K0820721BK

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

Product currently unavailable

Part no. 5Q0820741B

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

Product currently unavailable

Part no. 7L6820721BJ

Audi Q7 4L A/C Air Conditioning Hose Pipe Tube Line 3.0 Diesel 7L6820721BJ

Product currently unavailable

Part no. 6R0820721H

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

Product currently unavailable

Part no. 8W0816743B

Audi A5 F5 45 TFSI A/C Air Condition Pipe Hose Line Tube 8W0816743B

Product currently unavailable

Part no. 8K0260701R

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

Product currently unavailable

Part no. 8E0260701BS

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

Product currently unavailable

Part no. 5WA816721

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

Product currently unavailable

Part no. 8W0816721

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

Product currently unavailable

Part no. 5Q0820743G

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

Product currently unavailable

Part no. 5QF816741B

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

Product currently unavailable

Part no. 8U0820721G

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

Product currently unavailable

Part no. 5Q0816721AG

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

Product currently unavailable

Part no. 4M0816738M

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

Product currently unavailable

Part no. 8T0816743C

Audi Q5 8R Air Condition A/C Pipe Hose Line 2.0 TDI Diesel 8T0816743C

Product currently unavailable

Part no. 8W0816741AK

Audi A4 B9 A4 S4 8W A5 S5 F5 Air Conditioning AC Pipe Hose Line Tube 8W0816741AK

Product currently unavailable

Part no. 8U0816741F

Audi Q3 8U Refrigerant Coolant Hose Line Pipe Tube 8U0816741F

Product currently unavailable

Part no. 4E0129901A

Audi S8 D3 Coolant Air Conditioning Pipe A/C Hose Line Tube 4E0129901A

Product currently unavailable

Part no. 4H0260710AA

Audi A8 D4 Air Conditioning A/C Air Con Coolant Pipe Hose Line 4H0260710AA

Product currently unavailable

Part no. 4G0816741AB

Audi A7 4G8 Air Conditioning A/C Refrigerant Hose Pipe Line 4G0816741AB

Product currently unavailable

Part no. 8U0820743C

Audi Q3 8U Coolant Air Conditioning Pipe A/C Hose Line Tube 8U0820743C

Product currently unavailable

Part no. 7L6820744BD

Audi Q7 4L 3.0 TDI Air Conditioning Hose A/C Pipe Line 7L6820744BD

Product currently unavailable

Part no. 8K0260710N

Audi A4 B8 Air Conditioning Pipe Refrigerant Hose Line Pipe A/C 8K0260710N

Product currently unavailable

Part no. 8T0260710G

Audi A5 8T Refrigerant Pipe Air Conditioning Line Hose 8T0260710G

Product currently unavailable

Part no. 4G0260707AK

Audi RS6 C7 Air Conditioning Pipe Hose Line A/C 4G0260707AK

Product currently unavailable

Part no. 8E0260701BT

Audi RS4 B7 Coolant Air Conditioning Pipe A/C Hose Line Tube 8E0260701BT

Product currently unavailable

Part no. 8T0260701C

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

Product currently unavailable

Part no. 8E0260710H

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

Product currently unavailable

Part no. 6C0816721G

Audi A1 8X Skoda Fabia Mk3 Air Con Pipe Hose AC Refrigerant 6C0816721G

Product currently unavailable

Part no. 8K0260707H

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

Product currently unavailable

Part no. 8J0820741F

Audi TT 8J Air Conditioning Pipe Refrigerant Hose Line Pipe A/C 8J0820741F

Product currently unavailable

Part no. 4F0260707AF

Audi A6 C6 A/C Air Con Conditioning Refrigerant Hose Pipe 3.0 TDI 4F0260707AF

Product currently unavailable

Part no. 8K0260701S

Audi A4 B8 A5 8F Air Conditioning Pipe Refrigerant Hose Line Pipe A/C 8K0260701S

Product currently unavailable

Part no. 8K0260710H

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

Product currently unavailable

Part no. 8J0820721F

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

Product currently unavailable

Part no. 5Q0816721K

Volkswagen Seat Skoda Audi A/C Air Conditionin Pipe Hose Line 5Q0816721K

Product currently unavailable

Part no. 5Q0816721AB

Audi A3 8V Q2 GA VW Golf Mk7 A/C Air Con Conditioning Pipe Hose Line 5Q0816721AB

Product currently unavailable

Part no. 8E0260707BH

Audi A4 B7 High Pressure A/C Air Condition Line Tube Pipe Hose Line 8E0260707BH

Product currently unavailable

Part no. 7L6820744BQ

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

Product currently unavailable

Part no. 6C0820721Q

Audi A1 S1 8X Air Conditioning A/C Pipe Line Hose 2.0 TFSI 6C0820721Q

Product currently unavailable

Part no. 1K0820741BD-2

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

Product currently unavailable

Part no. 8T0260701J

Audi A5 S5 8T A4 S4 B8 Air Conditioning A/C Air Con Pipe Hose Line 8T0260701J

Product currently unavailable

Showing 100-165 of 165 products