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 A4 B7 Air Conditioning Dryer Air Con Drier Tank 8E0820193E

£13.95

Free delivery: Sep 14

If paid before 14:00

Audi Q7 4L Air Condition Con Pipe Hose Coolant 7L6820741E

-5%

Part no. 7L6820741E

Audi Q7 4L Air Condition Con Pipe Hose Coolant 7L6820741E

Promo price

£13.95

£13.25

Free delivery: Sep 14

If paid before 14:00

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

-5%

Part no. 7L6820743F

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

Promo price

£13.95

£13.25

Free delivery: Sep 14

If paid before 14:00

Part no. 8T0260707C

Audi A4 B8 A5 8T Q5 8R A/C Air Conditioning Compressor Pipe Hose 8T0260707C

£28.95

Free delivery: Sep 14

If paid before 14:00

Part no. 6R0820721K

Audi A1 8X A/C Air Conditioning Compressor Refrigerant Hose Pipe 6R0820721K

£23.95

Free delivery: Sep 14

If paid before 14:00

Part no. 5Q0816741C

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

Product currently unavailable

Part no. 1K0820721CA

Audi A3 8P Air Conditioning Pipe A/C Hose Line 1K0820721CA

Product currently unavailable

Part no. 1K0820741CM

Volkswagen Golf Audi A3 8P Air Conditioning Pipe Hose Line A/C 1K0820741CM

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. 8K0260701

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

Product currently unavailable

Part no. 1K0820721BD

Audi VW Skoda Seat 1.9 TDI Air Conditioning Hose A/C Pipe Line 1K0820721BD

Product currently unavailable

Part no. 5Q0816721K

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

Product currently unavailable

Part no. 1K0820743BQ

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

Product currently unavailable

Part no. 8E0260701BS

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

Product currently unavailable

Part no. 8V0816743

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

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. 5Q0816721AB

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

Product currently unavailable

Part no. 1K0820741AT

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

Product currently unavailable

Part no. RHD-6R2820743AR

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

Product currently unavailable

Part no. 8K0260710Q

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

Product currently unavailable

Part no. 6R0820721H

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

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. 8E0260701BN

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

Product currently unavailable

Part no. 8T0260701C

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

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. 8W0816741AL

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

Product currently unavailable

Part no. RHD-8N2820743E

Audi TT 8N A/C Air Conditioning Hose Pipe Line 8N2820743E

Product currently unavailable

Part no. RHD-6R2820741AC

Audi A1 8X 1.4 TFSI CAVG Air Condition A/C Hose Line Pipe Tube 6R2820741AC

Product currently unavailable

Part no. 8L9820721D

Audi TT 8N A3 8L Air Conditioning Hose A/C Pipe Line 8L9820721D

Product currently unavailable

Part no. 4F0260740B

Audi A6 C6 Air Conditioning Pipes A/C Air Con Hose Pipe Line 4F0260740B

Product currently unavailable

Part no. 8K0260701R

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

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. 8V0820742

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

Product currently unavailable

Part no. 5WA816721

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

Product currently unavailable

Part no. 5WA816743B

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

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. 1K0820743CD

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

Product currently unavailable

Part no. 5Q0820743C

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

Product currently unavailable

Part no. 80A819203-1

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

Product currently unavailable

Part no. 1K0820741AH

Volkswagen Golf GTI Mk6 Air Conditioning Pipe Hose Line A/C 2.0 TFSI 1K0820741AT

Product currently unavailable

Part no. 4G0260701CG

Audi A6 C7 A7 4G8 Air Conditioning Pipe Refrigerant Hose Line Pipe 4G0260701CG

Product currently unavailable

Part no. 8K0260701N

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

Product currently unavailable

Part no. 8J0820743F

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

Product currently unavailable

Part no. 4F0260707AB

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

Product currently unavailable

Part no. RHD-8N2820743K

Audi TT 8N A/C Air Con Air Conditioning Hose Pipe Line 8N2820743J

Product currently unavailable

Part no. RHD-8N2820741M

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

Product currently unavailable

Part no. 4G0260710P

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

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. 8U0820721N

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

Product currently unavailable

Part no. 8T0260701D

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

Product currently unavailable

Part no. 5Q0820743G

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

Product currently unavailable

Part no. 5Q0816743C

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

Product currently unavailable

Part no. 8U0820679

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

Product currently unavailable

Part no. 8U0820721J

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

Product currently unavailable

Part no. 5Q0816743AB

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

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

Part no. 80A819203

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

Product currently unavailable

Part no. 4E0260707BD

Audi A8 D3 A/C Air Condition Hose Line Tube Pipe 4E0260701AB

Product currently unavailable

Part no. 8K0260710N

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

Product currently unavailable

Part no. 5Q0820803E

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

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. 8R0260701AK

Audi Q5 8R Coolant Air Conditioning Pipe A/C Cooling Hose Line Tube 8R0260701AK

Product currently unavailable

Part no. 4F0260701S

Audi A6 C6 Air Conditioning Pipe A/C Refrigerant Hose Line Diesel 4F0260701S

Product currently unavailable

Part no. 4E0129901A

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

Product currently unavailable

Part no. 80A816743BG

Audi Q5 FY Air Conditioning Pressure A/C Pipe Hose Line 80A816743BG

Product currently unavailable

Part no. 8K0260701E

Audi S5 8T A/C Compressor Condenser Refrigerant Hose Pipe AirCon Line 8K0260701E

Product currently unavailable

Part no. 8T0260710A

Audi A5 8F Air Conditioning A/C Air Con Pipe Hose Line 3.0 TFSI 8T0260710A

Product currently unavailable

Part no. 1K0820741BD-1

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

Product currently unavailable

Part no. 4G0260701CA

Audi A6 C7 A7 4G A/C Air Con Conditioning Pipe Refrigerant Hose Line 4G0260701CA

Product currently unavailable

Part no. 7L6820744BQ

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

Product currently unavailable

Part no. 8R0260701AJ

Audi Q5 8R 2.0 TDI Diesel Air Condition A/C Pipe Hose Line 8R0260701AJ

Product currently unavailable

Part no. 8W0816721

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

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. 8J0820721J

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

Product currently unavailable

Part no. 8V0816721F

Audi RSQ3 F3 RS3 8V Air Conditioning A/C Hose Pipe Line 8V0816721F

Product currently unavailable

Part no. 4F0260701M

Audi A6 C6 FL Air Conditioning Hose A/C Pipe Line 4F0260701M

Product currently unavailable

Part no. 8N0820721F

Audi TT 8N A/C Air Conditioning Refrigerant Hose Pipe 3.2 Petrol BHE 8N0820721F

Product currently unavailable

Part no. 8W0816743D

Audi A4 B9 A5 F5 A/C Air Condition Air Con Pipe Hose Line Tube 8W0816743D

Product currently unavailable

Part no. 8W0816721D

Audi A4 B9 A5 F5 A/C Air Condition Compressor Hose Pipe Line Tube 8W0816721D

Product currently unavailable

Part no. 1K0820721AE

Audi A3 8P Air Conditioning Pipe A/C Hose Line 1K0820721AE

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. 8E0260707BJ

Audi A4 B7 Air Conditioning Hose Tube Pipe Line 8E0260707BJ

Product currently unavailable

Part no. 5Q0816721S

Audi A3 8V Air Conditioning Refrigerant Hose Pipe Line 5Q0816721S

Product currently unavailable

Part no. 5Q0816721AA

Audi A3 8V VW Golf VII Air Conditioning Refrigerant Hose Line 5Q0816721AA

Product currently unavailable

Part no. 7L6820750AG

Audi Q7 4L A/C Air Conditioning Hose Refrigerant Pipe Diesel 7L6820750AG

Product currently unavailable

Part no. 8K0260707AF

Audi A4 B8 A5 8T Air Conditioning A/C Air Con Pipe Hose Line 8K0260707AF

Product currently unavailable

Part no. 7L6820017D

Audi Q7 4L Air Conditioning Hose Pipe A/C Refrigerant Line 7L6820017D

Product currently unavailable

Part no. RHD-8E2260712AG

Audi A4 B7 A/C Air Condition High Pressure Pipe Hose Line Tube 8E2260712AG

Product currently unavailable

Part no. 8T0816741B

Audi A4 B8 A5 8T Air Con Conditioning Pipe Hose Line 2.0 TDI Diesel 8T0816741B

Product currently unavailable

Part no. 4G0260707AK

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

Product currently unavailable

Part no. 1K0820743FN

Audi A3 8P VW Golf Mk6 Air Conditioning Pipe Hose Line 1K0820743FN

Product currently unavailable

Part no. 8K0260701T

Audi RS4 B8 Air Conditioning Pipe Refrigerant Hose Line Pipe A/C 8K0260701T

Product currently unavailable

Part no. 83A121286A

Audi Q3 F3 Radiator Fan Lower Air Guide 83A121286A

Product currently unavailable

Part no. RHD-8E2260740E

Audi A4 B7 Air Conditioning A/C Hose Pipe Line 2.0 TDI Diesel Engine 8E2260740E

Product currently unavailable

Part no. 4G0260701AJ

Audi RS6 C7 Air Conditioning Pipe Hose Line A/C 4G0260701AJ

Product currently unavailable

Part no. 8U0820721G

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

Product currently unavailable

Part no. 8W0816738Q

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

Product currently unavailable

Part no. 5Q0816721AC

Audi A3 8V Volkswagen Golf Mk7 A/C Air Conditionin Pipe Hose Line 5Q0816721AC

Product currently unavailable

Part no. 8U0820741D

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

Product currently unavailable

Showing 100-198 of 248 products