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 A5 8T Water Hose Cooling Coolant Radiator Pipe Line 059121070E

€28.95

Part no. 03F121065A

Volkswagen VW Polo 6R Engine Water Coolant Pipe Hose 1.2 TSI 03F121065A

€23.95

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Audi A6 C7 4.0 TFSI CRDB Coolant Hose Pipe Tube 4G0819377Q

€23.95

Part no. CPLA-9P923-CC

Range Rover L405 Fuel Cooler Inlet Outlet Hose Pipe CPLA-9P923-CC

€23.95

Part no. 06Q121497D

Skoda Superb SE Engine Coolant Pipe Hose Tube Line 2.0 Petrol DNNA 06Q121497D

€56.95

Part no. 5N0122157BG

Audi Q3 SE Mk1 Water Coolant Pipe Hose Line Tube 5N0122157BG

€23.95

Part no. 1K0121101CP

Volkswagen Golf 1K 1.6 TDI Water Hose Cooling Coolant Pipe Line 1K0121101CP

€23.95

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BMW Z4 Series E85 Intake Turbo Silencer Rubber Boot Hose Line 7541704

€23.95

Part no. 2E0122101F-1

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

€28.95

Part no. A6542039600

Mercedes W205 W447 OM654 Water Hose Engine Cooling Coolant Pipe Line A6542039600

€42.95

Part no. 04L121064AC

Audi A3 8V Engine Water Coolant Pipe Cooling Hose Line 04L121064AC

€28.95

Part no. FPLA-8C481-CD

Range Rover Sport L494 Engine Water Coolant Hose Pipe Tube Line FPLA-8C481-CD

€23.95

Part no. 1512863

Ford Kuga C394 Water Pipe Coolant Hose Engine Cooling 2.0 TDCI 8V41-8260-AB

€32.95

Part no. 5N0122086F

Audi Q3 SE Coolant Hose Engine Cooling System Hose Line Tube Pipe 5N0122086F

€51.95

Part no. 5Q0122073AL

Volkswagen Passat B8 Water Coolant Hose Tube Line Pipe 2.0 TDI 5Q0122073AL

€23.95

Part no. LPLA-8C481-AC

Range Rover Sport L494 Defender L663 Water Coolant Pipe Hose Line LPLA-8C481-AC

€23.95

Part no. 05C122447Q

Seat Ibiza Mk5 KJ1 Audi A3 8Y Water Coolant Pipe Hose 1.0 Petrol 05C122447Q

€23.95

Part no. 9G230707904

Porsche 718 Boxster 982 Return Coolant Hose Pipe Line 2.0 Petrol 9G230706300

€66.95

Part no. 165710Y010

Toyota Yaris P9 Radiator Hose Tube Line Pipe 1.33 Petrol 1NRFE 165710Y010

€23.95

Part no. 04E121070AJ

Volkswagen Golf Sportsvan 1.5 TSI Water Coolant Pipe Hose Line 04E121070AJ

€23.95

Part no. 8519112

BMW X5 F15 Diesel Engine Coolant Hose Line Tube Supply Return 8519112

€23.95

Part no. A9065010682

Mercedes-Benz Sprinter W906 Diesel Radiator Water Coolant Pipe Hose A9065010682

€23.95

Part no. A2702030182

Mercedes C117 W176 X156 W246 Coolant Thermostat Pipe Hose Line OM270 A2702030182

€23.95

Part no. 03L122157AA

Audi A4 B8 Water Hose Radiator Coolant Pipe Line 2.0 TDI Diesel 03L122157AA

€23.95

Part no. 9G230706300

Porsche 718 Boxster 982 Feed Coolant Hose Pipe Line 2.0 Petrol 9G230706300

€56.95

Part no. 9P1317233

Porsche 718 Boxster 982 Water Coolant Heater Valve Pipe Hose Line 2.0T 9P1317233

€66.95

Part no. 8W0122101B-1

Audi A4 B9 A5 F5 Water Hose Cooling Coolant Radiator Pipe Line 8W0122101B

€23.95

Part no. 079121065BD

Audi RS4 B7 Radiator Coolant Hose Pipe Line A079121065BD

€23.95

Part no. 165020Q010

Toyota Yaris P9 Radiator Water Filler Neck Pipe Hose Tube Line 165020Q010

€47.95

Part no. PCH503320

Land Rover Discovery 3 L319 Water Coolant Heater Pipe Hose Line PCH503320

€56.95

Part no. A2135015301

Mercedes W213 Water Coolant Pipe Hose Line Tube A2135015301

€23.95

Part no. FPLA-8C480-CD

Range Rover Sport L494 Engine Water Coolant Pipe Hose Tube Line FPLA-8C480-CD

€23.95

Part no. 99110601502

Porsche 718 Cayman S 982C Water Coolant Hose Pipe 2.5 Petrol Engine 99110601502

€51.95

Part no. 5N0121070M

Audi A3 8P Water Hose Cooling Radiator Coolant Pipe Line 5N0121070M

€23.95

Part no. 4K0819460

Audi A6 C8 Engine Coolant Pipe Line Heating Hose 2.0 TFSI Hybrid 4K0819460

€47.95

Part no. 5N0122073AH

Audi Q3 SE Mk1 2.0 TDI Water Coolant Pipe Hose Line Tube 5N0122073AH

€42.95

Part no. A6071500054-1

Water Heater Mercedes W176 W246 Pre Heater Auxiliary A6071500054

€47.95

Part no. 982121049

Porsche 718 Boxster Cayman 982 Coolant Water Hose Pipe 2.0T Petrol 982121049

€37.95

Part no. 7617381

Mini F56 BMW F45 F46 Water Coolant Pipe Hose Line B37 B47 7617381

€28.95

Part no. 8T0941717D

Audi A4 RS4 B8 Headlight Lamp Drain Hose Pipe Line Tube Left N/S 8T0941717D

€23.95

Part no. 9222751

BMW X5 E70 LCI Auxiliary Water Radiator Coolant Pipe Hose Pipe Supply 9222751

€23.95

Part no. 6Q0122101CD

Skoda Fabia Mk2 Volkswagen Polo 6R Water Coolant Hose Pipe 6Q0122101CD

€23.95

Part no. 8W0819332D

Audi A4 B9 A5 F5 Water Hose Engine Cooling Coolant Pipe Line Diesel 8W0819332D

€23.95

Part no. 6986793

BMW E60 E61 Engine Water Coolant Pipe Hose Line 550i N62N 6986793

€32.95

Part no. 7645482

Water Coolant Hose BMW F45 Mini F60 Countryman Pipe Line 7645482

€23.95

Part no. 5Q0121447G

Audi A3 8V VW Golf Mk7 Engine Coolant Pipe Water Hose Line 5Q012144

€23.95

Part no. 99110655101

Porsche 718 Boxster 982 Water Coolant Pipe Hose Line 2.0T 99110655101

€32.95

Part no. 8K0121101P

Audi A4 B8 2.0 TDI Diesel Water Pipe Engine Cooling Coolant Hose Line 8K0121101P

€23.95

Part no. 8584143

Water Hose BMW F20 F30 F31 F10 F11 LCI B47 Coolant Water Pump Pipe Line 8584143

€32.95

Part no. A2055011091

Mercedes W205 Water Hose Radiator Coolant Cooling Pipe Line M276 A2055011091

€51.95

Part no. JT73-8B273-CD

Ford Transit Connect Water Pipe Hose Tube Line 1.0 EcoBoost JT73-8B273-CD

€23.95

Part no. 3AA122101E

Volkswagen Passat CC Engine Water Coolant Pipe Hose Tube Line 2.0 TDI 3AA122101E

€23.95

Part no. 8W0122291AH

Audi A4 B9 A5 F5 Coolant Water Pipe Grommet 2.0 TDI Diesel 8W0122291AH

€23.95

Part no. 7557364

BMW E60 E90 E91 F10 Radiator Coolant Pipe Hose Line 7557364

€23.95

Part no. 5N0122101AS

Audi Q3 SE Coolant Hose With Quick Release Coupling Upper 5N0122101AS

€85.95

Part no. A2475010425

Bleed Line Mercedes W118 W177 W247 Coolant Expansion Tank Hose A2475010425

€23.95

Part no. 7P5121070R-1

Porsche Cayenne S 92A Coolant Hose Pipe Line Right O/S 7P5121070R

€37.95

Part no. 06H121057H

Audi A4 S4 B8 8K A5 S5 8F 8T Thermostat Coolant Hose Pipe Line 06H121057H

€23.95

Part no. 165720Y010

Toyota Yaris P9 Engine Coolant Hose Tube Line Pipe 1.33 Petrol 1NRFE 165720Y010

€23.95

Part no. 079121071CF-1

AUDI S5 8T Petrol 4.2 FSI V8 Coolant Hose Rear Engine Water Pipe 079121071CF

€56.95

Part no. 4G0121081EJ

Audi A7 Sportback 4G Coolant Hose Pipe 3.0 TDI Diesel 4G0121081EJ

€23.95

Part no. A1775016102

Coolant Pipe Mercedes C118 W177 W247 Heater Water Cooling Hose Line A1775016102

€23.95

Part no. LR073713

Land Rover Discovery Sport L550 Water Coolant Pipe Hose Line 2.0 G4D3-18B402-BA

€23.95

Part no. 5Q0122157EP

Seat Leon Cupra 5F Water Coolant Pipe Hose Tube Line 2.0 TFSI Petrol 5Q0122157EP

€28.95

Part no. 4K0121052H

Audi A6 C8 Engine Coolant Pipe Line Heating Hose 2.0 TFSI Hybrid 4K0121052H

€23.95

Part no. A2045010482

Radiator Hose Mercedes W204 M272 Coolant Right Radiator Water Line A2045010482

€28.95

Part no. 6R0122051BR

Water Hose Audi A1 S1 8X 2.0 Cooling Radiator Coolant Pipe Line 6R0122051BR

€66.95

Part no. 7830714

BMW E46 Engine Cooling Water Radiator Coolant Tube Pipe Hose Line 7830714

€94.95

Part no. A6398324823

Mercedes W639 Heat Exchanger Water Coolant Hose Pipe A6398324823

€23.95

Part no. A4535013482

Smart ForTwo C453 1.0 Petrol Heater Matrix Exchange Pipe Hose Line A4535013482

€23.95

Part no. 6Q0122051BR

Skoda Fabia Mk2 Water Hose Radiator Coolant Return Pipe Line Petrol 6Q0122051BR

€23.95

Part no. 7848500-1

Coolant Hose BMW F80 M3 F82 M4 S55 Water Pump Cooling Pipe Line 7848500

€89.95

Part no. 04E103474G

Audi A3 8V Tank Crankcase Breather Vent Pipe Line 04E103474G

€23.95

Part no. 99610661153

Porsche Carrera 996 Coolant Water Hose Pipe Feed Line 9603 Petrol 99610661153

€23.95

Part no. 03G121065H

Volkswagen Golf MK5 Audi A3 8P Seat Skoda Diesel Engine Coolant Pipe 503G121065H

€23.95

Part no. A9078306901

Mercedes W907 Auxiliary Water Pump Coolant Hose Line Pipe 9078306901

€23.95

Part no. 7P6129572

Porsche Cayenne 92A Air Intake Hose Pipe Line 4.2 TDI Diesel Right O/S 7P6129572

€23.95

Part no. A2055061535

Mercedes W205 Hybrid Water Hose Radiator Coolant Cooling Pipe Line A2055061535

€37.95

Part no. A4534700564

Smart Fortwo C453 Radiator Overflow Coolant Water Pipe Hose Line A4534700564

€23.95

Part no. A2058300001

Mercedes W205 Water Hose Cooling Radiator Coolant Pipe Line A2058300001

€56.95

Part no. 057121073C

Audi Q7 4L 4.2 TDI Coolant Hose Pipe Hose Line 057121073C

€23.95

Part no. A2135010401

Mercedes W213 S213 C238 Coolant Hose Pipe Line A2135010401

€37.95

Part no. 7838756-1

BMW M3 E46 Z4 E85 E86 Coolant Return Pipe Water Line S54 Petrol 7831527

€23.95

Part no. A6542032801-1

Mercedes W177 W247 C118 Coolant Hose Water Line OM654 Diesel A6542032801

€23.95

Part no. 982121625B

Porsche 718 Boxster 982 Water Coolant Hose Pipe Line 2.0 Petrol 982121625B

€23.95

Part no. A6512032282

Mercedes W204 W212 OM651 Engine Water Pipe Cooling Coolant Hose A6512032282

€23.95

Part no. 5Q0122051B

Skoda Octavia 5E Audi A3 8V VW Golf VII Water Coolant Hose Pipe Line 5Q0122051B

€42.95

Part no. 079121071BB

Audi RS4 B7 Radiator Coolant Hose Pipe Line A079121071BB

€32.95

Part no. 7548240

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

€32.95

Part no. CPLA-9F287-DB

Range Rover L405 Heat Exchanger Water Coolant Cooling Hose Pipe CPLA-9F287-DB

€23.95

Part no. JT76-8C351-CG

Ford Transit Connect Engine Thermostat Hose Tube Line Pipe SFCA JT76-8C351-CG

€23.95

Part no. KK21-8B273-BD

Ford Transit Custom Coolant Hose Water Pipe Tube Line 2.0 EcoBlue KK21-8B273-BD

€51.95

Part no. M8B2-8464-BB

Range Rover Defender L663 Coolant Expansion Bottle Hose Line Tube M8B2-8464-BB

€85.95

Part no. 1K0121101CP-1

Volkswagen Golf Mk6 1.6 TDI Water Hose Cooling Coolant Pipe Line 1K0121101CP

€23.95

Part no. A1765010000-1

Coolant Hose Mercedes W176 C117 CLA A45 AMG Petrol M133 Water Line A1765010000

€23.95

Part no. 982265381C

Porsche 718 Boxster 982 Water Coolant Hose Pipe Line 2.0T 982265381C

€51.95

Part no. 8514071

Water Hose BMW X3 F25 X4 F26 B47 Coolant Expansion Tank Pipe Line 8514071

€23.95

Part no. C1B1-8C012-AD

Ford Fiesta Mk7 Coolant Overflow Pipe 1.0 EcoBoost Petrol C1B1-8C012-AD

€28.95

Part no. CC11-18K579-BB

Ford Transit Mk7 Water Coolant Pipe Hose Line 2.2 Diesel CC1118K579BC

€23.95

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