What is the construction and purpose of cooling system hoses and pipes?

Cooling system hoses and pipes are coolant circuit elements installed between the engine, radiator, thermostat, heater core, and expansion tank. A typical hose consists of an inner layer resistant to fluid, a reinforcing layer, and an outer cover protecting against temperature and material aging. Depending on the mounting location, it can take the form of a flexible hose or a rigid plastic or metal section.

What are cooling system hoses and pipes used for?

Cooling system hoses and pipes are used to route coolant through the entire system and maintain the proper engine operating temperature. They are responsible for connecting subassemblies, circuit tightness, and the proper transfer of fluid to the radiator, heater core, and water pump. Their failure can cause leaks, air in the system, and disruption of fluid circulation.

What is the construction and function of a cooling system connector?

A cooling system connector is a connection point to which a hose or pipe transporting coolant is attached. It can be part of the thermostat housing, radiator, cylinder head, or another subassembly and usually works with a gasket, clamp, or quick-connector. Its task is to maintain a tight and stable connection in places where pressure and temperature changes occur.

How to choose cooling system hoses and pipes for a specific car version?

It is best to compare the OEM part number, hose path, end diameters, and type of connectors. It is also worth checking the engine version, fuel type, production year, mounting location, and any interchangeable numbers. For used parts, the completeness of brackets, vents, and branches also matters.

What symptoms indicate wear of cooling system hoses and pipes?

The most common signs are coolant leaks, traces of moisture at connections, swollen material, cracks, or a hose structure that is too soft. In practice, fluctuations in engine operating temperature, gurgling, and sediment traces near clamps may also appear. Such symptoms should be checked along with fluid levels and connection tightness.

How to care for cooling system hoses and pipes after installation?

After installation, it is worth checking the hose routing, tightening of clamps, and lack of contact with hot or moving engine compartment elements. It is also important to check the coolant level and system venting after the first start. Regular inspections help to quickly detect leaks, abrasions, and material deformation.

Cooling system hoses and lines

At Global Parts, we offer a wide selection of original used car parts, including cooling system hoses and lines for many popular car brands such as BMW, Mini, Mercedes, Audi, Volkswagen, and others. The cooling system hoses and lines we offer are quality-controlled, ensuring you receive a top-quality product.

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Audi A1 8X 1.4 TFSI Engine Water Coolant Pipe Hose Line Tube 6C0122109A

€23.95

BMW i4 G26 Battery Cooling System Accumulator Coolant Connector Flange 8833572

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BMW i4 G26 Battery Cooling System Accumulator Coolant Connector Flange 8833572

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Ford Fiesta Mk5 Lower Radiator Pipe Hose Line 2.0 Duratec 5S6Y-8B273-AB

€32.95

Part no. G4D3-8555-BC-1

Range Rover Evoque L538 Water Coolant Pipe Hose 2.0 G4D3-8555-BC

€28.95

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Audi RS3 8V Engine Oil Coolant Hose Pipe 2.5 TFSI 8V0121124

€56.95

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Porsche 718 Boxster 982 Coolant Water Feed Pipe Hose Line 2.0T 982121101C

€23.95

Coolant Hose BMW F40 B47B Mini F55 F56 B47D Radiator Water Coolant Pipe 8580477

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Part no. 8580477

Coolant Hose BMW F40 B47B Mini F55 F56 B47D Radiator Water Coolant Pipe 8580477

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Mercedes C216 W221 S65 AMG M275 Auxiliary Radiator Coolant Pipe A2215019282

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Mercedes C216 W221 S65 AMG M275 Auxiliary Radiator Coolant Pipe A2215019282

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€56.95

€34.17

BMW U06 Petrol Engine Water Coolant Pipe Hose Line Tube 5A07782

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Part no. 5A07782

BMW U06 Petrol Engine Water Coolant Pipe Hose Line Tube 5A07782

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€45.57

Part no. AV41-8K012-BB

Ford Kuga C394 Overflow Container Header Tank Hose Tube Pipe Line AV41-8K012-BB

€28.95

Thermostat Coolant Pipe BMW E87 E90 E91 Hose Radiator Bottom 7531581

-5%

Part no. 7531581

Thermostat Coolant Pipe BMW E87 E90 E91 Hose Radiator Bottom 7531581

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€22.75

Audi A1 8X 1.4 TFSI Water Coolant Pipe Hose Cooling Line 6C0122101E

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Part no. 6C0122101E

Audi A1 8X 1.4 TFSI Water Coolant Pipe Hose Cooling Line 6C0122101E

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Part no. FPLA-8584-CB

Range Rover Evoque L538 Water Coolant Cooling Hose Pipe Line 3.0 FPLA-8584-CB

€23.95

Mini R50 R52 Top Upper Radiator Coolant Hose 7515989

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Part no. 7515989-1

Mini R50 R52 Top Upper Radiator Coolant Hose 7515989

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€23.95

€22.75

Part no. 4H0122101D

Audi A8 D4 Water Pipe Engine Cooling Coolant Hose Line 3.0 TDI Diesel 4H0122101D

€32.95

Mercedes W251 Engine Water Coolant Pipe Hose Line Diesel A2515013582

-5%

Part no. A2515013582

Mercedes W251 Engine Water Coolant Pipe Hose Line Diesel A2515013582

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€23.95

€22.75

Mercedes W213 Water Coolant Pipe Hose Line Tube A2135015301

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Part no. A2135015301

Mercedes W213 Water Coolant Pipe Hose Line Tube A2135015301

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Part no. GJ32-86160-AA

Land Rover Discovery Sport L550 Coolant Hose Pipe 2.0 Diesel GJ32-86160-AA

€23.95

BMW F01 F02 F07 F10 Coolant Water Pipe Hose Line Tube 8509274

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Part no. 8509274

BMW F01 F02 F07 F10 Coolant Water Pipe Hose Line Tube 8509274

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€23.95

€22.75

Coolant Hose BMW X5 E53 Petrol Engine N62 Cooling System Water Line 7509966

-5%

Part no. 7509966

Coolant Hose BMW X5 E53 Petrol Engine N62 Cooling System Water Line 7509966

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€23.95

€22.75

Volkswagen Golf 5G Water Hose Radiator Coolant Pipe Line 5Q0122051AT

-5%

Part no. 5Q0122051AT

Volkswagen Golf 5G Water Hose Radiator Coolant Pipe Line 5Q0122051AT

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€23.95

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Part no. 03G121071A

Audi A4 B7 2.0 TDI Water Hose Radiator Coolant Pipe Line 03G121071A

€37.95

Part no. 1K0121049CA

Audi A3 8P Engine Cooling Radiator Water Coolant Pipe 1.4 TSI CAXC 1K0121049CA

€23.95

VW Volkswagen Golf VI Mk6 2.0 TDi Coolant Water Hose Line Tube Pipe 1K0122447EQ

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Part no. 1K0122447EQ

VW Volkswagen Golf VI Mk6 2.0 TDi Coolant Water Hose Line Tube Pipe 1K0122447EQ

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Part no. 1316063

Land Rover Discovery 3 L319 Water Coolant Flange Pipe 2.7 Diesel 4H2Q-8A544-AB

€23.95

Part no. 7C0121130C

VW Volkswagen Crafter Sy 2.0 TDi Engine Coolant Pipe Hose Tube Line 7C0121130C

€42.95

Part no. 9P1121623

Porsche 718 Boxster 982 Coolant Cooling Return Hose Pipe Left N/S 9P1121623

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BMW X5 E53 Cooling System Coolant Radiator Water Hose 3.0d M57N 7791170

-5%

Part no. 7791170

BMW X5 E53 Cooling System Coolant Radiator Water Hose 3.0d M57N 7791170

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Mercedes CLA W176 AMG M133 E20 Coolant Hose Cooling Water Pipe Line A1332000053

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Part no. A1332000053

Mercedes CLA W176 AMG M133 E20 Coolant Hose Cooling Water Pipe Line A1332000053

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Part no. 8E0121070B-1

Audi A4 S4 B7 Upper Coolant Radiator Hose Line Pipe 8E0121070B

€23.95

Mercedes W177 AMG Water Pipe Heater Cooling Coolant Hose Line A2478306000

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Part no. A2478306000

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€28.95

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Mercedes Vito W639 OM646 Heat Exchanger Hose Water Coolant Pipe A6398322593

-5%

Part no. A6398322593

Mercedes Vito W639 OM646 Heat Exchanger Hose Water Coolant Pipe A6398322593

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€22.75

Coolant Hose Mercedes W177 M260 Engine Coolant Cooling Pipe Line A2602000100

-5%

Part no. A2602000100

Coolant Hose Mercedes W177 M260 Engine Coolant Cooling Pipe Line A2602000100

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Part no. 2E0121447C

VW Crafter 2E 35 Mercedes Sprinter W906 Coolant Hose Pipe Line 2E0121447C

€23.95

BMW X3 F25 Engine Coolant Radiator Water Feed Hose Pipe Diesel 9221117

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Part no. 9221117

BMW X3 F25 Engine Coolant Radiator Water Feed Hose Pipe Diesel 9221117

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Audi A4 B7 2.0 TDI BRE Water Coolant Pipe Hose Line 03G121071A

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Part no. 03G121065R

Audi A4 B7 2.0 TDI BRE Water Coolant Pipe Hose Line 03G121071A

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Audi Q3 8U Water Pipe Hose Coolant Cooling Line 2.0 TDI Diesel 5N0122157AM

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Part no. 5N0122157AM

Audi Q3 8U Water Pipe Hose Coolant Cooling Line 2.0 TDI Diesel 5N0122157AM

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Cooling Line VW Polo 6C Audi A1 8X 1.6 TDI Water Coolant Pipe Hose 6C0122073B

-15%

Part no. 6C0122073B

Cooling Line VW Polo 6C Audi A1 8X 1.6 TDI Water Coolant Pipe Hose 6C0122073B

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€23.95

€20.36

Part no. HPLA-8260-DB

Range Rover Evoque L538 Water Coolant Hose Pipe Line 3.0 Diesel HPLA-8260-DB

€23.95

Part no. 5A0C5A2

BMW F70 F74 U06 U10 U11 Mini F65 F66 Cylinder Head Coolant Hose Tube 5A0C5A2

€70.95

Part no. 5A38AD5

BMW U06 X1 U11 Water Coolant Pump Pipe Hose Line B38X 5A38AD5

€42.95

Part no. 7C0121445

VW Volkswagen Crafter Sy Coolant Hose Pipe Tube Line 2.0 Diesel 7C0121445

€23.95

Part no. 2383403

Ford Transit Custom Radiator Coolant Hose Tube Pipe Diesel GK2Q-8N039-AB

€23.95

Water Pipe Mercedes W204 M271 Engine Cooling Coolant Feed Hose A2712002452

-5%

Part no. A2712002452

Water Pipe Mercedes W204 M271 Engine Cooling Coolant Feed Hose A2712002452

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€22.75

Volkswagen VW Golf Mk7 5G Water Hoses Radiator Coolant Pipes Lines 04L121064G

-15%

Part no. 04L121064G

Volkswagen VW Golf Mk7 5G Water Hoses Radiator Coolant Pipes Lines 04L121064G

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€28.95

€24.61

Water Hose Mercedes W176 W246 M270 Coolant Cooling Pipe Line A2702030682

-5%

Part no. A2702030682

Water Hose Mercedes W176 W246 M270 Coolant Cooling Pipe Line A2702030682

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Part no. A6512030882

Coolant Hose Mercedes W204 Diesel OM651 EGR Cooler Valve Line A6512030882

€23.95

Mercedes W204 M274 Petrol Water Coolant Cooling Hose Line Pipe A2742000282

-15%

Part no. A2742000282

Mercedes W204 M274 Petrol Water Coolant Cooling Hose Line Pipe A2742000282

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Mercedes W212 Radiator Coolant Hose Pipe Tube Line A2125010684

-15%

Part no. A2125010684

Mercedes W212 Radiator Coolant Hose Pipe Tube Line A2125010684

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€24.61

VW Volkswagen Golf Mk6 VI 2.0 TDi Water Coolant Hose Pipe Line 06F121058D

-5%

Part no. 06F121058D

VW Volkswagen Golf Mk6 VI 2.0 TDi Water Coolant Hose Pipe Line 06F121058D

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Audi A1 8X 1.4 TFSI CZCA Radiator Coolant Hose Line Tube Pipe 04E121070AC

-5%

Part no. 04E121070AC

Audi A1 8X 1.4 TFSI CZCA Radiator Coolant Hose Line Tube Pipe 04E121070AC

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Coolant Hose Mercedes W177 M260 Engine Coolant Cooling Pipe Line A2602030082

-5%

Part no. A2602030082

Coolant Hose Mercedes W177 M260 Engine Coolant Cooling Pipe Line A2602030082

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€23.95

€22.75

Part no. 7789720-1

BMW E87 118d 120d M47N2 Cooling Radiator Water Hose Pipe 7789720

€23.95

Part no. A9068322123

Volkswagen Crafter 2E Mercedes Sprinter W906 Coolant Pipe Hose Line A9068322123

€23.95

Part no. 3448462

BMW 3 4 Series F80 F82 F83 LCI Radiator And Engine Return Hose 3448462

€28.95

Part no. 1K0122157HH

Skoda Octavia II VW Golf Mk6 Water Hose Coolant Pipe Line 2.0 TFSI 1K0122157HH

€23.95

Part no. 7596837-1

BMW F20 F21 F22 F23 F30 F31 F32 F33 Petrol Radiator Coolant Hose Pipe 7596837

€23.95

Part no. 4G0121081EL

Audi A6 C7 Rear Breather Line Hose Pipe 4G0121081EL

€37.95

Part no. 7L8121070BG

Audi Q7 4L Water Coolant Pipe Hose Line 3.0 TDI 7L8121070BG

€28.95

Mercedes W205 X253 Diesel OM651.921 Engine Coolant Water Thermostat A6512002700

-15%

Part no. A6512002700

Mercedes W205 X253 Diesel OM651.921 Engine Coolant Water Thermostat A6512002700

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€32.95

€28.01

Part no. M8A2-8D262-AB

Range Rover Velar L560 Coolant Hose Pipe Line 2.0 Diesel Engine M8A2-8D262-AB

€23.95

Part no. 5A30C24

BMW U06 X1 U11 Water Coolant Heater Return Pipe Hose Line B38X 5A30C24

€37.95

Mercedes W168 W169 Engine Water Coolant Breather Pipe Hose A6400101282

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Part no. A6400101282

Mercedes W168 W169 Engine Water Coolant Breather Pipe Hose A6400101282

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€22.75

Water Hose Volkswagen Golf 6 Audi A1 A3 8P Petrol Coolant Pipe 03C121065B

-5%

Part no. 03C121065B

Water Hose Volkswagen Golf 6 Audi A1 A3 8P Petrol Coolant Pipe 03C121065B

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€23.95

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Part no. A1332030002

Mercedes W176 A45 AMG Coolant Hose Cooling Water Pipe Line A1332030002

€28.95

VW Volkswagen Golf 5G 2.0 TFSI CHHA Coolant Flange 5Q0122291K

-15%

Part no. 5Q0122291K

VW Volkswagen Golf 5G 2.0 TFSI CHHA Coolant Flange 5Q0122291K

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€32.95

€28.01

Mercedes W205 Coolant Hose Pipe Line A2055018900

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Part no. A2055018900

Mercedes W205 Coolant Hose Pipe Line A2055018900

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€23.95

€22.75

Part no. LPLA-8K232-FA

Range Rover Sport L494 Coolant Water Hose Line Tube Pipe LPLA-8K232-FA

€23.95

Part no. A1332000951-1

Mercedes W176 M133 A45 AMG Coolant Pipe Hose Line Tube A1332000951

€42.95

Part no. 8602603

BMW G11 G12 G30 G31 Radiator Coolant Hose Tube Line Pipe 2.0 530e B48X 8602603

€28.95

Part no. 5Q0121063Q

Volkswagen Golf CD1 Water Pipe Hose Coolant Cooling Line 5Q0121063Q

€23.95

BMW 1 3 Series F20 F21 F30 LCI M140i 340i Radiator Return Pipe Line 8630023

-5%

Part no. 8630023

BMW 1 3 Series F20 F21 F30 LCI M140i 340i Radiator Return Pipe Line 8630023

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Hose Pipe BMW F40 F45 B47B B47D Hose High Pressure EGR Coolant Pump Tube 8584837

-15%

Part no. 8584837

Hose Pipe BMW F40 F45 B47B B47D Hose High Pressure EGR Coolant Pump Tube 8584837

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€28.95

€24.61

Mercedes W639 Heat Exchanger Water Coolant Hose Pipe A6398324823

-5%

Part no. A6398324823

Mercedes W639 Heat Exchanger Water Coolant Hose Pipe A6398324823

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Audi Q3 8U Coolant Cooling Hose Pipe Line 2.0 TDI Diesel Engine 5N0121086D

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Part no. 5N0121086D

Audi Q3 8U Coolant Cooling Hose Pipe Line 2.0 TDI Diesel Engine 5N0121086D

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Part no. FPLA-8B573-CC

Range Rover Evoque L538 Water Coolant Pipe Hose Line 3.0 Diesel FPLA-8B573-CC

€32.95

Audi Q7 4L VW Touareg 7L 4.2 TDi Coolant Hose Water Pump Pipe 7L8122051B

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Part no. 7L8122051B

Audi Q7 4L VW Touareg 7L 4.2 TDi Coolant Hose Water Pump Pipe 7L8122051B

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Part no. 7548240

BMW E81 E82 E87 Hose Cooling System Pipe Return Line Thermostat Heating 7548240

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Part no. A2215011582

Mercedes Radiator Hose W221 Lower Coolant Line Hose Diesel A2215011582

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Part no. 2381106

Ford Kuga Mk3 Heater Water Pipe Hose Tube 2.5 Hybrid LX61-10C775-HBD

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Water Pipe Mercedes C117 W176 W246 M270 Coolant Hose Line A2702031782

-5%

Part no. A2702031782

Water Pipe Mercedes C117 W176 W246 M270 Coolant Hose Line A2702031782

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€22.75

Part no. 03H131561B

Volkswagen Passat CC Skoda Superb Coolant Hose Pipe Line 03H131561B

€70.95

Part no. C2Z9053

Jaguar Xf X250 Radiator Coolant Hose Pipe Tube Line 3.0 Diesel 9X23-8D033-AB

€23.95

Mercedes W164 OM642 Diesel Engine Water Coolant Elbow Hose A1645060435

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Part no. A1645060435

Mercedes W164 OM642 Diesel Engine Water Coolant Elbow Hose A1645060435

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Coolant Pipe Mercedes W213 X253 M274 Engine Cooling Feed Water Hose A2742002051

-5%

Part no. A2742002051

Coolant Pipe Mercedes W213 X253 M274 Engine Cooling Feed Water Hose A2742002051

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Mercedes A177 Diesel OM654.920. Engine Water Line Coolant Pipe Hose A6542031602

-15%

Part no. A6542031602

Mercedes A177 Diesel OM654.920. Engine Water Line Coolant Pipe Hose A6542031602

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€36.51

Mercedes W212 Petrol OM274 Coolant Pipe EGR Cooler Line A2742032302

-5%

Part no. A2742032302

Mercedes W212 Petrol OM274 Coolant Pipe EGR Cooler Line A2742032302

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Part no. 6R0122157AR

VW Volkswagen Polo Gti 6c Coolant Hose Tube Line Pipe Quick Release 6R0122157AR

€23.95

Part no. 07K121061B

Audi RSQ3 F3 Water Coolant Hose Pipe Line 2.5 TFSI 07K121061B

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Part no. 2E0122101F

VW Crafter 2E Mercedes Sprinter W906 Coolant Hose Pipe Line 2E0122101F

€28.95

Part no. A2515002075

Mercedes W251 Coolant Water Hose Pipe Line Radiator Cooler A2515002075

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Coolant Hose BMW F10 F11 520d N47N Radiator Water Cooling Pipe Line 8514244

-5%

Part no. 8514244

Coolant Hose BMW F10 F11 520d N47N Radiator Water Cooling Pipe Line 8514244

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Mercedes W204 M274 Petrol Engine Coolant Hose Water Line Pipe A2742001682

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Part no. A2742001682-1

Mercedes W204 M274 Petrol Engine Coolant Hose Water Line Pipe A2742001682

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Mercedes W213 S213 Water Hose Cooling Coolant Pipe Line A2538305500

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Part no. A2538305500

Mercedes W213 S213 Water Hose Cooling Coolant Pipe Line A2538305500

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Ford Fiesta MK7 1.6 TDCI Radiator Lower Hose Coolant Cooling Pipe Line 1827185

-5%

Part no. 1827185

Ford Fiesta MK7 1.6 TDCI Radiator Lower Hose Coolant Cooling Pipe Line 1827185

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BMW G20 Water Hose Radiator Coolant Cooling Tube Pipe Line 8650981

-5%

Part no. 8650981

BMW G20 Water Hose Radiator Coolant Cooling Tube Pipe Line 8650981

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Part no. 9844478

BMW G30 LCI Coolant Hose Cylinder Head Expansion Tank Line Tube Pipe 9844478

€23.95

Part no. 982121036B

Porsche 718 Boxster 982 Water Coolant Pipe Hose Line Tube 2.0T 982121036B

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Porsche Boxster 986 Coolant Pipe Hose Line Tube 99610667401

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