Air conditioning hoses, pipes and connectors
More informationAt 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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Price

Part no. 1K0820721CA
Audi A3 8P Air Conditioning Pipe A/C Hose Line 1K0820721CA
£13.95
Free delivery: Jul 29
If paid before 14:00

-15%
Part no. 4H0959126A
Air Conditioning Audi A5 8T Air Con Drier Pressure Sensor 4H0959126A
Promo price
£23.95
£20.36
Free delivery: Jul 29
If paid before 14:00

Part no. 5Q0816721K
Volkswagen Seat Skoda Audi A/C Air Conditionin Pipe Hose Line 5Q0816721K
£23.95
Free delivery: Jul 29
If paid before 14:00

-15%
Part no. 8E0260701BS
Audi A4 B7 Pressure Air Pipe Evaporator-Compressor Air Con Pipe 8E0260701BS
Promo price
£47.95
£40.76
Free delivery: Jul 29
If paid before 14:00

-40%
Part no. 8S0816741
Audi RSQ3 Q3 F3 Petrol Air Conditioning A/C Hose Pipe Line 8S0816741
Promo price
£56.95
£34.17
Free delivery: Jul 29
If paid before 14:00

Part no. 8W6816738B
Audi A5 F5 A/C Air Condition Coolant Hose Line Refrigerant Hose Line 8W6816738B
£137.95
Free delivery: Jul 29
If paid before 14:00

-5%
Part no. 8W0816743B
Audi A5 F5 45 TFSI A/C Air Condition Pipe Hose Line Tube 8W0816743B
Promo price
£13.95
£13.25
Free delivery: Jul 29
If paid before 14:00

Part no. 8U0820721M
Audi Q3 8U 2.0 TDI DFTA A/C Compressor Pipe Hose Line Tube 8U0820721M
£47.95
Free delivery: Jul 29
If paid before 14:00

-15%
Part no. 8J0820719Q
Audi TT 8J A/C Air Con Air Conditioning Pipe Hose Line 2.0 TFSI 8J0820719Q
Promo price
£56.95
£48.41
Free delivery: Jul 29
If paid before 14:00

Part no. 8W0816721BF
Audi A4 B9 A5 F5 Air Conditioning Hose A/C Pipe Refrigerant Line 8W0816721BF
£13.95
Free delivery: Jul 29
If paid before 14:00

-15%
Part no. 8K0819377H
Audi S5 8T Coolant Air Conditioning Pipe A/C Cooling Hose Line Tube 8K0819377H
Promo price
£23.95
£20.36
Free delivery: Jul 29
If paid before 14:00

-5%
Part no. 059121065CP
Audi Q7 4L Coolant Air Conditioning Pipe A/C Hose Line Tube 059121065CP
Promo price
£13.95
£13.25
Free delivery: Jul 29
If paid before 14:00

-5%
Part no. 8E0820193P
Air Conditioning Dryer Audi A4 B7 Air Con Drier Tank Pressure Sensor 8E0820193P
Promo price
£13.95
£13.25
Free delivery: Jul 29
If paid before 14:00

-15%
Part no. 8K0819377E
Audi A5 8T Coolant Air Conditioning Pipe A/C Cooling Hose Line Tube 8K0819377E
Promo price
£18.95
£16.11
Free delivery: Jul 29
If paid before 14:00

-15%
Part no. 06J121492E
Audi TT 8J A3 8P Water Return Coolant Pipe Hose Line 06J121492E
Promo price
£18.95
£16.11
Free delivery: Jul 29
If paid before 14:00

-5%
Part no. 8K0260707S
Audi A4 B8 2.0 TDI CJCB Diesel A/C Condition Pipe Hose Line Tube 8K0260707S
Promo price
£13.95
£13.25
Free delivery: Jul 29
If paid before 14:00

Part no. 4H0260701AB
Audi A8 D4 Air Conditioning A/C Air Con Pipe Hose Line 3.0 TDI 4H0260701AB
£23.95
Free delivery: Jul 29
If paid before 14:00

-40%
Part no. RHD-4F2819371
Audi A6 C6 Air Conditioning Pipes A/C Hose Line 4F2819371 4F0819373T 4F2819350AA
Promo price
£28.95
£17.37
Free delivery: Jul 29
If paid before 14:00

Part no. 1K0820743CD
Audi A3 8P Seat Leon Mk2 1P Air Conditioning Hose A/C Pipe Hose Line 1K0820743CD
£23.95
Free delivery: Jul 29
If paid before 14:00

Part no. RHD-8K2260712B
Audi A4 B8 A5 8T Air Conditioning Hose A/C Refrigerant Pipe 2.7 TDI 8K2260712B
£18.95
Free delivery: Jul 29
If paid before 14:00

Part no. 1K0820741AH
Volkswagen Golf GTI Mk6 Air Conditioning Pipe Hose Line A/C 2.0 TFSI 1K0820741AT
£61.95
Free delivery: Jul 29
If paid before 14:00

-15%
Part no. 8K0260707AC
Air Condition Pipe Audi A4 B8 A5 8T A/C Hose Line Tube 8K0260707AC
Promo price
£18.95
£16.11
Free delivery: Jul 29
If paid before 14:00

-40%
Part no. 8E0260707AT
Audi A4 B7 Air Conditioning Pipe Refrigerant Hose Line 8E0260707AT
Promo price
£23.95
£14.37
Free delivery: Jul 29
If paid before 14:00

-5%
Part no. RHD-5Q2816738D
Audi A3 S3 8V Air Conditioning A/C Air Con Pipe Hose Line 5Q2816738D
Promo price
£13.95
£13.25
Free delivery: Jul 29
If paid before 14:00

-40%
Part no. 4G0816721R
Audi A6 C7 A7 4G A/C Air Condition Hose Line Tube Pipe 3.0 TDI 4G0816721R
Promo price
£66.95
£40.17
Free delivery: Jul 29
If paid before 14:00

-5%
Part no. RHD-8Y2858431
Audi S3 8Y Dashboard Air Duct Distribution Housing Trim Panel 8Y2858431
Promo price
£13.95
£13.25
Free delivery: Jul 29
If paid before 14:00

-40%
Part no. RHD-8N2820743K
Audi TT 8N A/C Air Con Air Conditioning Hose Pipe Line 8N2820743J
Promo price
£75.95
£45.57
Free delivery: Jul 29
If paid before 14:00

-40%
Part no. RHD-80C816720
Audi Q5 FY Air Conditioning Pipe A/C Hose Line Tube 80C816720
Promo price
£23.95
£14.37
Free delivery: Jul 29
If paid before 14:00

-5%
Part no. RHD-4H2898037
Audi A7 4G8 Heat Exchange Heater Matrix Connecting Pipes 4H2898037
Promo price
£13.95
£13.25
Free delivery: Jul 29
If paid before 14:00

-40%
Part no. RHD-80C816740
Audi Q5 FY Air Conditioning Pipe A/C Hose Line Tube 80C816740
Promo price
£23.95
£14.37
Free delivery: Jul 29
If paid before 14:00

-5%
Part no. RHD-8W2816720
Audi A4 B9 Coolant Air Conditioning Pipe A/C Hose Line Tube 8W2816720
Promo price
£13.95
£13.25
Free delivery: Jul 29
If paid before 14:00

-40%
Part no. 4H0260710AA
Audi A8 D4 Air Conditioning A/C Air Con Coolant Pipe Hose Line 4H0260710AA
Promo price
£94.95
£56.97
Free delivery: Jul 30 – Aug 6
If paid before 14:00

-40%
Part no. RHD-4K2816720Q
Audi A6 C8 A7 4K Air Conditioning Pipe Hose Refrigerant Line 4K2816720Q
Promo price
£28.95
£17.37
Free delivery: Jul 29
If paid before 14:00

Part no. 2Q0816743AC
Audi A1 S1 GB Polo Air Conditioning A/C Refrigerant Line Tube Hose 2Q0816743AC
£32.95
Free delivery: Jul 29
If paid before 14:00

-5%
Part no. RHD-8W2816740
Audi A4 B9 8W A5 F5 Air Conditioning Pipe Hose Line A/C 8W2816740
Promo price
£13.95
£13.25
Free delivery: Jul 29
If paid before 14:00

-40%
Part no. 8K0122055B
Audi A4 B8 Water Return Coolant Pipe Hose Line 8K0122055B
Promo price
£37.95
£22.77
Free delivery: Jul 29
If paid before 14:00

-40%
Part no. 8J0820719N
Audi TT 8J A/C Air Condition Pipe Hose Line Tube 2.0 TDI CFGB 8J0820719N
Promo price
£47.95
£28.77
Free delivery: Jul 29
If paid before 14:00

-5%
Part no. RHD-5Q2816738B-1
Audi A3 8V Air Conditioning A/C Air Con Pipe Hose Line 6R2820741C
Promo price
£13.95
£13.25
Free delivery: Jul 29
If paid before 14:00

-40%
Part no. 420260705A
Audi R8 42 A/C Air Conditioning Compressor Pipe Hose Line 420260705A
Promo price
£189.95
£113.97
Free delivery: Jul 29
If paid before 14:00

-40%
Part no. 8R0260367
Audi Q5 8R A/C Air Condition Hose Pipe Line Tube Adapter 8R0260367
Promo price
£56.95
£34.17
Free delivery: Jul 29
If paid before 14:00

-40%
Part no. RHD-8V2816738C
Audi RS4 B8 2.5 TFSI DNWA A/C Air Condition Pipe Hose Line Tube 8V2816738A
Promo price
£37.95
£22.77
Free delivery: Jul 29
If paid before 14:00

-15%
Part no. RHD-8W2121123B
Audi A4 B9 Water Return Coolant Pipe Hose Line 8W2121123B
Promo price
£18.95
£16.11
Free delivery: Jul 29
If paid before 14:00

-5%
Part no. 8P0819681
Audi A3 8P Air Conditioning Compressor Sensor Dashboard A/C 8P0819681
Promo price
£13.95
£13.25
Free delivery: Jul 29
If paid before 14:00

-40%
Part no. 4E0260701AB
Audi A8 D3 A/C Air Condition Hose Line Tube Pipe 4E0260701AB
Promo price
£23.95
£14.37
Free delivery: Jul 29
If paid before 14:00

-5%
Part no. 7L0819318C
Audi Q7 4L Webasto Preheater Pipe Hose Line Tube 7L0819318C
Promo price
£13.95
£13.25
Free delivery: Jul 29
If paid before 14:00

-40%
Part no. 4G0260707C
Audi A7 4G Air Conditioning Pipe A/C Air Con Hose Line 4G0260707C
Promo price
£23.95
£14.37
Free delivery: Jul 29
If paid before 14:00

-15%
Part no. 4E0129901A
Audi S8 D3 Coolant Air Conditioning Pipe A/C Hose Line Tube 4E0129901A
Promo price
£18.95
£16.11
Free delivery: Jul 29
If paid before 14:00

-40%
Part no. 5QF816721AL
Audi Q3 F3 Air Con A/C Air Conditioning Pipe Refrigerant Hose Line 5QF816721AL
Promo price
£137.95
£82.77
Free delivery: Jul 29
If paid before 14:00

-40%
Part no. 4G0819377AC
Audi A7 4G8 Air Conditioning Coolant Hose Pipe Line Tube Unit 4G0819377AC
Promo price
£23.95
£14.37
Free delivery: Jul 29
If paid before 14:00

-40%
Part no. RHD-8R2260712C
Audi Q5 8R Air Conditioning Refrigerant Pipe A/C Line Hose 8R2260712C
Promo price
£23.95
£14.37
Free delivery: Jul 29
If paid before 14:00

Part no. RHD-8E2898350
Audi A4 RS4 B7 Heater Matrix Heat Exchanger Connecting Pipes Set 8E2898350
£28.95
Free delivery: Jul 29
If paid before 14:00

-40%
Part no. 4G0260701N
Audi A6 C7 Air Conditioning Pipe Refrigerant Hose Line A/C 4G0260701N
Promo price
£37.95
£22.77
Free delivery: Jul 29
If paid before 14:00

-40%
Part no. RHD-4K2816720T
Audi A6 C8 A7 4K Air Conditioning Pipe Hose Refrigerant Line 4K2816720T
Promo price
£32.95
£19.77
Free delivery: Jul 29
If paid before 14:00

Part no. RHD-4H2260713H
Audi A8 4H Air Conditioning Pipe A/C Hose Line 4H2260713H
£104.95
Free delivery: Jul 29
If paid before 14:00

-40%
Part no. RHD-8V2816738A
Audi RS4 B8 Air Condition A/C Pipe Hose Line Tube 8V2816738A
Promo price
£42.95
£25.77
Free delivery: Jul 29
If paid before 14:00

-40%
Part no. 8U0816721Q
Audi Q3 8U Air Conditioning Refrigerant Hose Tube Line Pipe 8U0816721Q
Promo price
£146.95
£88.17
Free delivery: Jul 29
If paid before 14:00

-15%
Part no. 8W0819342M
Audi A4 B9 A5 F5 1.4 TFSI Water Coolant Pipe Hose Line 8W0819342L
Promo price
£18.95
£16.11
Free delivery: Jul 29
If paid before 14:00

-40%
Part no. 8T0816743C
Audi Q5 8R Air Condition A/C Pipe Hose Line 2.0 TDI Diesel 8T0816743C
Promo price
£51.95
£31.17
Free delivery: Jul 29
If paid before 14:00

-40%
Part no. 8T0260707B
Audi A4 B8 2.0 TFSI CDNC A/C Air Conditioning Compressor Pipe Hose 8T0260707B
Promo price
£23.95
£14.37
Free delivery: Jul 29
If paid before 14:00

-40%
Part no. 8J0820887
Audi TTRS 8J RS3 8P Air Conditioning Pipe Refrigerant Hose 2.5 TFSI 8J0820887
Promo price
£70.95
£42.57
Free delivery: Jul 29
If paid before 14:00

-40%
Part no. RHD-4K2816720AB
Audi A6 C8 A7 4K A/C Air Conditioning Pipe Hose Refrigerant Line 4K2816720AB
Promo price
£32.95
£19.77
Free delivery: Jul 29
If paid before 14:00

-5%
Part no. 8K0260707H
Audi A4 B8 A5 8T 3.0 TDI CJCB Diesel A/C Condition Pipe Hose Tube 8K0260707H
Promo price
£13.95
£13.25
Free delivery: Jul 29
If paid before 14:00

-40%
Part no. 8K0260707G
Audi A4 B8 A5 8T Air Con Air Conditioning A/C Pipe Line Hose 8K0260707G
Promo price
£32.95
£19.77
Free delivery: Jul 29
If paid before 14:00

-40%
Part no. 5QF816743AA
Audi Q3 F3 Air Conditioning Refrigerant Pipe Hose Line Tube 5QF816743AA
Promo price
£51.95
£31.17
Free delivery: Jul 29
If paid before 14:00

-5%
Part no. 8K0819342K
Heater Pipe Audi A4 B8 A5 8T Water Hose 8K0819342K
Promo price
£13.95
£13.25
Free delivery: Jul 29
If paid before 14:00

-40%
Part no. 1K0820743BT
Audi A3 8P VW Golf Seat Altea XL Air Condition Con Pipe Hose Coolant 1K0820743BT
Promo price
£32.95
£19.77
Free delivery: Jul 29
If paid before 14:00

-15%
Part no. 8W0816743D
Audi A4 B9 A5 F5 A/C Air Condition Air Con Pipe Hose Line Tube 8W0816743D
Promo price
£18.95
£16.11
Free delivery: Jul 29
If paid before 14:00

-40%
Part no. RHD-4K2816740M
Audi A6 C8 A7 4K Air Conditioning Pipe Hose Refrigerant Line 4K2816740M
Promo price
£56.95
£34.17
Free delivery: Jul 29
If paid before 14:00

-5%
Part no. 4G2260712G
Audi A7 4G A/C Air Conditioning Compressor Sensor Hose Pipe Line 4G2260712G
Promo price
£13.95
£13.25
Free delivery: Jul 29
If paid before 14:00

-5%
Part no. 4G0260707P
Audi A7 4G8 3.0 TDI CDUC A/C Air Condition Pipe Hose Line Tube 4G0260707P
Promo price
£13.95
£13.25
Free delivery: Jul 29
If paid before 14:00

-5%
Part no. RHD-4K2816740N
Audi A6 C8 A7 4K Air Conditioning Pipe Hose Refrigerant Line 4K2816740N
Promo price
£13.95
£13.25
Free delivery: Jul 29
If paid before 14:00

Part no. 8K0260707P
Audi A4 B8 A5 8T Air Condition Air Con Pipe A/C Hose Line Tube Petrol 8K0260707P
£18.95
Free delivery: Jul 29
If paid before 14:00

Part no. RHD-8T2816738
Audi A5 8T Refrigerant Pipe Air Conditioning Condenser Line 8T2816738
£18.95
Free delivery: Jul 29
If paid before 14:00

-5%
Part no. 4G0816743AG
Audi A7 4G8 Air Conditioning A/C AC Pipe Hose Line 4G0816743AG
Promo price
£13.95
£13.25
Free delivery: Jul 29
If paid before 14:00

-40%
Part no. 8R0260701AC
Audi Q5 8R Coolant Air Conditioning Pipe A/C Cooling Hose Line Tube 8R0260701AC
Promo price
£37.95
£22.77
Free delivery: Jul 29
If paid before 14:00

-40%
Part no. 8U0820743G
Audi Q3 8U Coolant Air Conditioning Pipe A/C Hose Line Tube 8U0820743G
Promo price
£85.95
£51.57
Free delivery: Jul 29
If paid before 14:00

Part no. 1K0820743AR
Audi A3 8P Air Conditioning A/C Hose Pipe Line 1K0820743AR
£28.95
Free delivery: Jul 29
If paid before 14:00

-40%
Part no. 8W0816743BN
Audi A5 F5 45 TFSI A/C Air Condition Compressor Hose Pipe Line Tube 8W0816743BN
Promo price
£32.95
£19.77
Free delivery: Jul 29
If paid before 14:00

Part no. RHD-7L6820741G
Audi Q7 4L Diesel Engine A/C Air Conditioning Pipe Hose Line Tube 7L6820741G
£13.95
Free delivery: Jul 29
If paid before 14:00

-40%
Part no. 8T0260701G
Audi S4 B8 S5 8T Air Conditioning A/C Air Con Pipe Hose Line V6 8T0260701G
Promo price
£28.95
£17.37
Free delivery: Jul 29
If paid before 14:00

-40%
Part no. 5WC816738B
Audi A3 8Y 30 TFSI DXDE A/C Air Condition Pipe Line Tube Hose 5WC816738B
Promo price
£28.95
£17.37
Free delivery: Jul 29
If paid before 14:00

Part no. RHD-8V2816738B
Audi RS3 8V Air Conditioning Air Con A/C Heater Pipe Hose Line Tube 8V2816738A
£94.95
Free delivery: Jul 29
If paid before 14:00

-40%
Part no. 4H0260707AJ
Audi A8 D4 Refrigerant Line Air Conditioning Pipe Hose Tube 4H0260707AJ
Promo price
£47.95
£28.77
Free delivery: Jul 29
If paid before 14:00

-40%
Part no. RHD-4H2260713M
Audi A8 4D Air Conditioning Pipe A/C Hose Line Pipe 4H2260713M
Promo price
£113.95
£68.37
Free delivery: Jul 29
If paid before 14:00

-5%
Part no. 4L0820730
Audi Q7 4L Air Conditioning Hose A/C Pipe Line 4L0820730
Promo price
£13.95
£13.25
Free delivery: Jul 29
If paid before 14:00

-15%
Part no. 8R0260710L
Audi Q5 8R Air Conditioning A/C Pipe Hose Line 2.0 TDI 8R0260710L
Promo price
£66.95
£56.91
Free delivery: Jul 29
If paid before 14:00

-40%
Part no. 4G0816743AE
Audi A7 4G A/C Air Con Air Conditioning Pipe Hose Line 4G0816743AE
Promo price
£37.95
£22.77
Free delivery: Jul 29
If paid before 14:00

Part no. 4M0816743CH
Audi Q7 4M Air Conditioning Compressor Pipe Hose Line 4M0816743CH
£42.95
Free delivery: Jul 29
If paid before 14:00

Part no. RHD-8E2260709E
Audi A4 B7 Air Conditioning A/C Hose Pipe Line 2.0 TDI Diesel Engine 8E2260709E
£37.95
Free delivery: Jul 29
If paid before 14:00

Part no. 8E0820193E
Audi A4 B7 Air Conditioning Dryer Air Con Drier Tank 8E0820193E
£13.95
Free delivery: Jul 29
If paid before 14:00

-5%
Part no. 7L6820741E
Audi Q7 4L Air Condition Con Pipe Hose Coolant 7L6820741E
Promo price
£13.95
£13.25
Free delivery: Jul 29
If paid before 14:00

-5%
Part no. 7L6820743F
Audi Q7 4L Air Condition Con Pipe Hose Coolant 7L6820743F
Promo price
£13.95
£13.25
Free delivery: Jul 29
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: Jul 29
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. 5Q0816743E
Audi A3 S3 8V Air Conditioning Hose A/C Air Con Pipe Line 5Q0816743E
Product currently unavailable

-5%
Part no. 1K0820721BL
Audi A3 8Y Air Conditioning Pipes A/C Air Con Hose Pipe Line 1K0820721BL
Product currently unavailable

Part no. 8K0260701
Air Conditioning Pipe Audi A4 B8 Refrigerant Hose Line Pipe A/C 8K0260701
Product currently unavailable

Part no. 1K0820741CM
Volkswagen Golf Audi A3 8P Air Conditioning Pipe Hose Line A/C 1K0820741CM
Product currently unavailable

Part no. 8K0260701D
Audi A4 B8 Air Conditioning Pipe Refrigerant Hose Line Pipe A/C 8K0260701D
Product currently unavailable

AC hoses and connectors – reliable parts for car cooling systems
High-quality air conditioning components – durability and compatibility with various models
Air conditioning lines, hoses, and connectors are components that play a key role in the proper functioning of the air conditioning system. They are responsible for the airtight and efficient transfer of refrigerant between the compressor, condenser, evaporator, and other system components. Their high quality and technical condition are essential for the reliable operation of the air conditioning. In the Global Parts automotive store, we offer a wide selection of used car parts, including air conditioning lines, hoses, and connectors, perfectly matched to brands such as BMW, Audi, Mercedes, Volkswagen, Mini, and many others.
How do air conditioning lines, hoses, and connectors work in the system?
Air conditioning lines, hoses, and connectors are responsible for the airtight transfer of refrigerant and lubricating oil between individual system components. Each of these elements has its own unique task:
- High-pressure lines – transport refrigerant under high pressure from the compressor to the condenser.
- Low-pressure hoses – carry refrigerant from the evaporator to the compressor after cooling.
- Connectors – ensure airtight and stable connections between lines and other system components.
- Seals and O-rings – protect against refrigerant leaks, ensuring the tightness of the entire system. Each of these elements must be made of materials resistant to high pressure, temperature, and the chemical properties of the refrigerant.
Construction and purpose of air conditioning lines, hoses, and connectors
Air conditioning lines, hoses, and connectors are a set of working connections that link the compressor, condenser, evaporator, and receiver-drier into one airtight circuit. These elements are mounted mainly in the engine compartment, near the bulkhead, and in the area of the air conditioning radiator, and their routing depends on the engine version and body type. A typical line may have an aluminum tube, a flexible rubber section, crimped ends, and mounting points to the body. In products from this category, it is worth checking the brand marking, condition, OEM part number, interchangeable numbers, fuel type, and location on the vehicle.
Definitions and parameters
Air conditioning lines differ in diameter, pressure resistance, and type of ends. Connectors most often use SAE standards or quick-connectors characteristic of a given brand, which affects compatibility with the compressor and condenser. In practice, this means that a line for one BMW model will not fit an Audi car, despite similar engine capacity and comparable air conditioning performance.
Differences between types of lines and connectors
The high-pressure line is used to transport compressed refrigerant from the compressor outlet to other system elements and usually has a stiffer construction and stronger ends. The low-pressure hose is responsible for the return of the refrigerant on the suction side and more often operates as a more flexible section. An air conditioning connector refers to the connection point of two circuit elements, where the thread type, seal profile, and socket compatibility are crucial. In practice, when repairing the system, it is worth checking the condition of air conditioning compressors and clutches simultaneously, as damage to one sub-assembly often affects the operation of the others.
Comparison of air conditioning line variants
| Element type | Application | Construction | What to check before purchase |
|---|---|---|---|
| High-pressure line | Connection of the compressor with the condenser or further section of the system | Usually an aluminum tube with a flexible section and crimped ends | OEM number, line shape, end type, mounting points |
| Low-pressure line | Return of refrigerant from the evaporator to the compressor | Greater flexibility, different operating profile and different ends than on the high-pressure side | Location on the vehicle, diameter, presence of covers and brackets |
| Connector and fitting | Airtight connection of the line with the air conditioning component | Metal socket or end working with a seal or O-ring | Seal type, thread or quick-connector, socket compatibility |
| Line with sensor or additional outlet | Support for advanced air conditioning system versions | Extended construction with space for a sensor, valve, or additional section | Car equipment, engine version, presence of additional connections |
Why is it worth taking care of air conditioning lines, hoses, and connectors?
The tightness and efficiency of lines, hoses, and connectors in the air conditioning system are the basis for the reliable operation of the entire system. Their damage or wear can lead to:
- Loss of refrigerant, which reduces cooling efficiency.
- Pressure drop in the system, which can damage the compressor.
- Corrosion due to refrigerant leaks and moisture. At Global Parts, we offer used car parts that help maintain the full efficiency of the air conditioning system.
The importance of tightness and cooperation with other system elements
The tightness of the air conditioning system serves to maintain the proper circulation of the refrigerant and stable operation of the compressor. Even a small leak at the connection of a line and connector can cause a drop in cooling performance, traces of oil at the ends, and overloading of components. When choosing an element such as a BMW E90 air conditioning line, it is worth comparing the OEM number, tube routing, type of ends, and compatibility with the engine version. During broader diagnostics, it is also useful to check the condition of condensers (radiators) and receiver-drier filters and accumulators.
How to choose the right air conditioning lines, hoses, and connectors?
When choosing air conditioning lines, hoses, and connectors, you should pay attention to several key aspects:
- Matching the vehicle model – every car brand and model has specific requirements regarding the air conditioning system. At Global Parts, you will find air conditioning lines, hoses, and connectors perfectly matched to BMW, Audi, Mercedes, Volkswagen, Mini, and many others.
- Technical condition – ensure that the lines and hoses are free from cracks, corrosion, and leaks.
- Type of connectors – choose connectors compatible with your vehicle's air conditioning system to ensure the tightness and stability of the connections.
Selecting parts by OEM number and vehicle version
The selection of an air conditioning line or connector is best based on the OEM number, interchangeable numbers, and comparing the element's routing with a photo of the part. In practice, the fuel type, engine version, mounting side, and the presence of additional brackets or connections for a sensor also count. If a sub-assembly such as a BMW E90 air conditioning line is sought, you must check not only the shape itself but also how the line is routed in the engine compartment. Additional support when completing the system can be provided by pressure switches when the diagnosis also includes controlling the air conditioning operation.
Why is it worth choosing used air conditioning lines, hoses, and connectors?
Purchasing used car parts is a solution that allows you to combine high quality with savings. By choosing used lines, hoses, and connectors, you gain:
- Lower costs – used parts are cheaper than new ones, and when selected correctly, they perform their function well.
- Ecology – you support recycling and reduce the amount of automotive waste.
- Wide offer – in our store, you will find elements for many car brands, which makes it easier to match them to your vehicle. For those who are also completing other elements of the interior cooling system, we also recommend supplementary material: Used parts for Mercedes - original parts from dismantling.
How to take care of air conditioning lines, hoses, and connectors?
To ensure that lines, hoses, and connectors work efficiently for a long time, it is worth following a few rules:
- Regularly check the visual condition of the lines and hoses, looking for signs of wear such as cracks or leaks.
- Replace seals and O-rings during every repair or service of the air conditioning system.
- Keep the system clean to avoid contamination that can lead to damage or leaks. In case of failure or the need for replacement, properly selected elements help restore the full functionality of the air conditioning system.
FAQ
| Question | Answer |
|---|---|
| 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. |
Summary: air conditioning lines, hoses, and connectors at the Global Parts automotive store
Air conditioning lines, hoses, and connectors are responsible for tightness, proper refrigerant flow, and stable operation of the entire vehicle interior cooling system. In the Global Parts offer, you will find elements matched to cars of brands such as BMW, Mercedes, Audi, and others, with the possibility of verification by OEM number, car version, and mounting location. This is a practical choice for those who are completing an air conditioning system with consideration for part compatibility and the actual vehicle specification. We invite you to contact us – we are here to help you! For more information and interesting facts, we also invite you to our automotive blog.