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

Make

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

Product currently unavailable

Part no. 4H0898037D

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

Product currently unavailable

Part no. 1K0820743FR

Volkswagen Scirocco MK3 Skoda Yeti Air Conditioning A/C Hose Pipe 1K0820743FR

Product currently unavailable

Part no. 1K0820741BD

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

Product currently unavailable

Part no. 4G0816741AB

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

Product currently unavailable

Part no. 8K0260701P

Audi A4 B8 A5 8T Air Con Hose Pipe Compressor To Condenser 3.2 FSI 8K0260701P

Product currently unavailable

Part no. 5Q0820741B

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

Product currently unavailable

Part no. 8U0820721L

Audi RS Q3 8U Refrigerant A/C Air Conditioning Pipe Hose 2.5 TFSI 8U0820721L

Product currently unavailable

Part no. 8T0260710G

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

Product currently unavailable

Part no. 6C0816743N

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

Product currently unavailable

Part no. 4K0816704AA

Audi A6 C8 Refrigerant Hose Pipe Air Con A/C Coolant Line Hybrid 4K0816704AA

Product currently unavailable

Part no. 8E0260701BT

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

Product currently unavailable

Part no. 4G0260707CB

Audi A7 4G8 3.0 TDI CDUC A/C Air Condition Pipe Hose Line Tube 4G0260707CB

Product currently unavailable

Part no. 4G0260707CC

Audi A6 C7 A7 4G A/C Air Conditioning Pipe Hose Line 3.0 TDI 4G0260707CC

Product currently unavailable

Part no. 8U0816743K

Audi Q3 8U 2.0 TFSI Petrol A/C Compressor Pipe Hose Line Tube 8U0816743K

Product currently unavailable

Part no. 4E0121400P

Audi S8 D3 Water Return Coolant Pipe Hose Line 4E0121400P

Product currently unavailable

Part no. 059121065FK

Audi A7 4G8 Water Coolant Pipe Hose Line 059121065FK

Product currently unavailable

Part no. 7L0820526C

Audi Q7 4L Air Duct Centre Rear Compartment Air Vent Duct 7L0820526C

Product currently unavailable

Part no. 4K0816743DB

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

Product currently unavailable

Part no. 4G0260707AL

Audi A6 S6 4G A7 4G Air Conditioning Refrigerant Hose Pipe Line Tube 4G0260707AL

Product currently unavailable

Part no. 4F0260707AC

Audi A6 C6 Air Conditioning A/C Hose Pipe Pressure Line 4F0260707AC

Product currently unavailable

Part no. 8J0820719L

Audi TT 8J Air Conditioning Pipe Refrigerant Hose Line Pipe A/C 8J0820719L

Product currently unavailable

Part no. 4G0816743AL

Audi A7 4G8 A7 Air Conditioning A/C Coolant Refrigerant Hose Pipe 4G0816743AL

Product currently unavailable

Part no. 8R0260707AC

Audi Q5 8R 3.0 TDI Diesel Air Condition A/C Pipe Hose Line 8R0260707AC

Product currently unavailable

Part no. 8K0260707N

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

Product currently unavailable

Part no. 8K0260707T

Audi S4 B8 S5 8T Air Conditioning Pipe Hose A/C Line 3.0 TFSI 8K0260707T

Product currently unavailable

Part no. 8T0260701K

Audi A4 B8 A5 8T A/C Air Con Hose Refrigerant Pipe 3.0 TDI 8T0260701K

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. 8R0816741A

Audi Q5 8R 2.0 TDI Diesel Air Condition A/C Pipe Hose Line 8R0816741A

Product currently unavailable

Part no. 8U0816741F

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

Product currently unavailable

Part no. 8K0260705B

Audi Rs4 8K RS5 8F 8T Air Conditioning A/C Hose Petrol Line 4.2 FSI 8K0260705B

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. 4H0260702A

Audi A8 S8 4H A8 D4 Air Conditioning Condenser Pipe Adapter 3.0 TDi 4H0260702A

Product currently unavailable

Part no. 8R0819334E

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

Product currently unavailable

Part no. 4F0260701C

Audi A6 C6 Air Con Pipe Conditioning Hose A/C Line 4F0260701C

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. 8E0260707BH

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

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. 8W0816741AK

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

Product currently unavailable

Part no. 420260708

Audi R8 42 Air Conditioning Pipe Refrigerant Hose Line A/C 420260708

Product currently unavailable

Part no. 420260707

Audi R8 42 Air Conditioning Pipe Refrigerant Hose Line A/C 420260707

Product currently unavailable

Part no. 420260701

Audi R8 42 Air Conditioning Pipe Refrigerant Hose Line A/C 420260701

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. 6C0816721G

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

Product currently unavailable

Part no. 8U0820743C

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

Product currently unavailable

Showing 199-243 of 243 products