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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Engine Water Hose BMW F20 LCI M135iX F30 335iX Coolant Cooling Pipe Line 7649301

€37.95

Part no. 8571801

BMW F10 F11 LCI B47 Hose Cylinder Head Radiator 8571801

€47.95

Part no. 1K0122157JH

Coolant Hose Audi A3 8P VW Golf 6 1.6 TDI Diesel Water Pipe Line 1K0122157JH

€23.95

Part no. 7552339

BMW E81 E82 E90 E91 N53 Hose Pipe Cylinder Head Thermostat 7552339

€23.95

Part no. 7635807

BMW F20 F21 F30 E31 LCI B47 Water Coolant Radiator Pipe Hose 7635807

€23.95

Part no. 7521361

BMW E81 E87 116i N45 Hose Engine Feed Radiator Top Pipe 7521361

€23.95

Part no. 03L121132AC

Audi A4 B8 A5 8T 2.0 TDI Water Coolant Thermostat Housing 03L121132AC

€23.95

Part no. 7812943

BMW F30 F32 LCI 330d 430d N57N Engine Radiator Coolant Hose Pipe Line 7812943

€23.95

Part no. 8514456

BMW F10 F20 F22 F30 F32 B47 Cylinder Head Coolant Hose Pipe Line 8514456

€28.95

Part no. A4638203789

Mercedes W212 Radio Antenna Splitter Control Unit Module A4638203789

€23.95

Part no. 5N0121065

Volkswagen Tiguan 5N Water Pipe Hose Coolant Cooling Line 5N0121065

€23.95

Part no. A1645060835

Mercedes-Benz M ML W164 Heater Radiator Coolant Pipe Hose Part A1645060835

€32.95

Part no. 7565092

BMW 1 Series E81 E87 LCI N43 E90 E91 Ventilation Line Hose Radiator Top 7565092

€23.95

Part no. 1439125

BMW X5 Series E53 Engine Cooling Radiator Expansion Tank Hose Petrol 1439125

€23.95

Part no. 03L121071C

Audi A4 B8 2.0 TDI Water Hose Radiator Coolant Pipe Line 03L121071C

€23.95

Part no. 8514079

Coolant Hose BMW F20 F21 LCI Expansion Tank Pipe Radiator B37 Diesel 8514079

€37.95

Part no. 2283594

Water Hose BMW E90 E92 E93 LCI M3 Radiator Cooling Coolant Pipe 2283594

€23.95

Part no. 7798496

Coolant Hose BMW E70 E71 M57N2 Water Cooling Pipe Radiator 7798496

€32.95

Part no. 5Q0122157CL

Audi A3 8V 35 TDI Water Hose Cooling Radiator Coolant Pipe Line 5Q0122157CL

€28.95

Part no. 7555342

BMW 3 Series E90 320si Radiator Water Pump Hose Pipe 7555342

€26.95

Part no. 7846363

BMW F10 M5 F12 M6 Coolant Hose Radiator Cooling Water Pipe Connector 7846363

€80.95

Part no. 7514406

BMW Z4 Series E85 M54 Radiator Water Hose Coolant Pipe 7514406

€37.95

Part no. 7525641

BMW E92 LCI Engine Coolant Radiator Hose Pipe Tube Line N47N Diesel 7525641

€23.95

Part no. 7518503-1

Mini Cooper S R52 R53 1 Engine Cooling Coolant Line Pipe Hose 7518503

€32.95

Part no. 7519247

BMW 5 6 Series E60 E61 E63 E64 Radiator Coolant Vent Pipe Hose Petrol 7519247

€23.95

Part no. 03G121071A

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

€37.95

Part no. 7848501

BMW F80 M3 F82 M4 Engine Inlet Radiator Hose Pipe 7848501

€47.95

Part no. A2762006651

Coolant Hose Mercedes C238 Turbo Cooling Return Line A2762006051

€56.95

Part no. 7515501

Mini Cooper S R52 R53 W11 Petrol Radiator Water Coolant Pipe Hose 7515501

€23.95

Part no. 3422606

BMW X3 Series E83 LCI Engine Water Valve Pipe To Engine Coolant Hose 3422606

€23.95

Part no. A9075282300

Mercedes Sprinter W907 Diesel Intercooler Left N/S Hose Air Line A9075282300

€23.95

Part no. A2468304596

Water Hose Mercedes W176 W246 Diesel OM651 Cooling Coolant Pipe A2468304596

€23.95

Part no. 8514234

Coolant Hose BMW F10 F11 N47N Radiator Water Cooling Pipe Diesel 8514234

€23.95

Part no. 059121065AK

VW Touareg 7L Audi A4 B7 Water Cooling Coolant Pipe Hose 3.0 TDI 059121065AK

€23.95

Part no. 8571595

BMW G20 G21 G30 G31 X5 G05 B57 Water Hose Heat Exchanger Pipe Line 8571595

€23.95

Part no. 8K0819342J

Audi A5 8T 2.0 TDI Coolant Water Hose Line Cooling Tube Pipe 8K0819342J

€23.95

Part no. 8512420

BMW F30 F32 335dX 435dX Engine Radiator Return Coolant Hose Pipe 8512420

€23.95

Part no. 04L122157BF

Audi A4 B8 2.0 TDI CNHC Diesel Engine Water Coolant Pipe Hose Line 04L122157BF

€23.95

Part no. A2035015582

Mercedes-Benz C W203 Kompressor Radiator Bottom Hose Pipe Petrol A2035015582

€23.95

Part no. 5Q0122051BJ

Audi A3 8V 1.6 TDI CRKB Water Coolant Pipe Hose Line Tube 5Q0122051BJ

€56.95

Part no. 8573157

Water Hose BMW F10 F11 LCI N57N N57Z Diesel EGR Coolant Pipe Line 8573157

€37.95

Part no. 6C0122109A

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

€23.95

Part no. A6462030182

Mercedes Vito W639 OM646 Water Hose Pipe Coolant Line Heat Exchanger A6462030182

€23.95

Part no. 8K0121049L

Audi A4 B8 Water Hose Radiator Coolant Pipe Line 2.0 TDI 8K0121049L

€23.95

Part no. A2515002175

Mercedes W251 Diesel OM642 Coolant Hose Engine Water Cooling Line A2515002175

€23.95

Part no. A2465010482

Mercedes W176 W246 OM651 Water Hose Engine Radiator Coolant Pipe A2465010482

€23.95

Part no. A2468302996

Mercedes W176 Coolant Hose Heater Line to Water Pump Return A2468302996

€32.95

Part no. 7843264

Coolant Hose BMW F10 M5 F12 F13 M6 Water Cooling Pipe Radiator 7843264

€23.95

Part no. 06F121065H

Audi A3 8P TT 8J VW Golf GTI 2.0 TFSI Coolant Water Pipe Hose Line 06F121065H

€42.95

Part no. 5Q0122073AN

Volkswagen Golf Mk7 Water Coolant Pipe Hose Line 1.4 TSI 5Q0122073AN

€23.95

Part no. A2045010224

Coolant Pipe Mercedes W204 M274 Oil Cooler To Radiator Coolant Hose A2045010224

€23.95

Part no. A2702000651

Water Pump Pipe Mercedes C117 W176 W246 M270 Coolant Hose Line A2702000651

€47.95

Part no. 7508012

BMW 7 Series E65 E66 E67 Petrol Engine Cooling Radiator Vent Pipe 7508012

€28.95

Part no. GJ32-8286-AB

Land Rover Discovery Sport L550 Water Coolant Pipe Hose Line 204DT GJ32-8286-AB

€32.95

Part no. 6C1Q8250AA

Ford Transit MK7 2.4 TDCi Diesel Water Pipe Coolant Hose Line 6C1Q-8250-AA

€23.95

Part no. 3AA122073A

Audi TT 8J Engine Coolant Hose Pipe Line Tube Quick Release Coupling 3AA122073A

€23.95

Part no. 7552391

BMW E81 E82 E87 LCI E87N E88 Hose Cooling Module Low-Temperature 7552391

€23.95

Part no. 8K0121049AF

Audi A4 B8 2.0 TDI Water Coolant Hose Tube Line Pipe 8K0121049AF

€23.95

Part no. 7526941

Hose Heat Exchanger BMW E81 E87 E90 E91 Transfer Oil Pipe 7526941

€23.95

Part no. 7596837

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

€23.95

Part no. A2048301096

Water Pipe Mercedes W204 C207 W212 OM642 Cooling Coolant Hose Line A2048301096

€23.95

Part no. GJ32-8B504-AA

Land Rover Discovery Sport L550 Water Coolant Pipe Hose 2.0 Diesel GJ32-8B504-AA

€23.95

Part no. 7531579

BMW E81 E87 E90 E91 E92 Petrol Hose From Engine Radiator Top 7531579

€28.95

Part no. 8611277

BMW 1 3 Series F20 F21 F30 LCI M140i 340i Engine Coolant Hose Pipe Line Tube

€32.95

Part no. 2754222-1

Mini Cooper R55 R56 R57 Cooling System Coolant Radiator Water Hose Pipe 2754222

€23.95

Part no. A2215011582

Mercedes Radiator Hose W221 Lower Coolant Line Hose Diesel A2215011582

€23.95

Part no. 5Q0122073AB

Audi A3 8V 2.0 TFSI Water Coolant Hose Tube Line Pipe 5Q0122073AB

€23.95

Part no. 7546064

Water Coolant Pipe BMW E60 E61 E63 E64 Hose Engine To Radiator Top Petrol N52

€37.95

Part no. BK3Q8K520BB

Ford Transit MK7 2.2 TDCI Water Hose Cooling Coolant Pipe Line BK3Q-8K520-BB

€23.95

Part no. 9329645

Water Hose BMW F20 F21 F30 LCI B48 Coolant Cooling Pipe Line 9329645

€23.95

Part no. 8K0121055B

Water Hose Cooling Audi A4 S4 8B A5 S5 8T Radiator Coolant Pipe Line 8K0121055B

€32.95

Part no. 7848500

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

€108.95

Part no. 03L122157K

Volkswagen Sharan 7N Water Pipes Hoses Coolant Cooling Line 03L122157K

€23.95

Part no. 5Q0121049AD

Volkswagen Audi A3 8V Seat Petrol Water Coolant Pipe Hose Line 5Q0121049AD

€23.95

Part no. 8571606

Coolant Hose BMW X3 F25 X4 F26 Diesel Radiator Water Pipe Line N57N 8571606

€23.95

Part no. 7552405

BMW E81 E82 E87 LCI E87N Line Heater Return Thermostat Engine Cooling

€23.95

Part no. A6462030482

EGR Cooler Hose Mercedes W203 W211 OM646 Heat Exchange Coolant Line A6462030482

€23.95

Part no. A2135017400

Mercedes A238 Water Coolant Filling Hose Pipe Line A2135017400

€23.95

Part no. 7525022

BMW 1 SERIES E81 E82 E87 LCI Petrol N46 Cooling radiator water hose pipe 7525022

€23.95

Part no. 9222651

BMW E90 E91 E92 E93 LCI N47N Radiator Engine Return Hose Line 9222651

€23.95

Part no. 9800480

Mini Cooper R60 R61 Cooling System Coolant Radiator Water Hose 9800480

€23.95

Part no. A2048308496

Water Pipe Mercedes W204 W207 OM651 Cooling Coolant Hose Line A2048308496

€23.95

Part no. 8645546

Mini Cooper S F55 F56 Petrol Engine Water Pump Cooling Coolant Pipe Hose 8645546

€28.95

Part no. A6512001482

Coolant Hose Mercedes W204 Diesel OM651 Water Engine Cooling Line A6512001482

€23.95

Part no. 3C0122051AT

Volkswagen Passat B6 Audi A3 8P Coolant Hose Pipe Line 3C0122051AT

€23.95

Part no. 5Q0121070AH

Audi A3 8V VW Golf Mk7 Water Coolant Pipe Hose Line Diesel 5Q0121070AH

€23.95

Part no. 04L121065CR

Water Hose Audi A3 8V Skoda Octavia IV 1.6 TDI Coolant Line Pipe 04L121065CR

€47.95

Part no. 8380127

BMW X5 Series E53 3.0i M54 Pipe Hose Engine Expansion Tank 8380127

€23.95

Part no. A2135014100

Water Hose Mercedes W213 S213 Radiator Cooling Coolant Pipe A2135014100

€23.95

Part no. 8510307

BMW F20 F21 F31 N47S1 Radiator Coolant Hose Pipe Line 8510307

€23.95

Part no. 5Q0122051BE

Volkswagen Golf Mk7 5G Water Coolant Pipe Radiator Hose Line 2.0 TDI 5Q0122051BE

€42.95

Part no. 8507246

BMW F30 F31 F34 F36 Coolant Hose Engine Cooling Radiator Line 8507246

€23.95

Part no. 7853727

BMW F20 F21 F87 M2 N55 Engine Radiator Return Coolant Hose Pipe Line 7853727

€28.95

Part no. 06E121065H

Audi A4 B7 A8 A6 Coolant Hose Pipe Line 06E121065H

€23.95

Part no. A2128301896

Water Pipe Mercedes W212 Engine Cooling Coolant Hose Line A2128301896

€23.95

Part no. 05C121070A

Volkswagen Golf Mk8 Water Coolant Pipe Hose Line 1.0 TSI DLAA Petrol 05C121070A

€23.95

Part no. A2468302896

Water Hose Mercedes W176 W246 OM651 Coolant Water Pump Pipe Line A2468302896

€28.95

Part no. 6C0122157A

Volkswagen Polo 6R Water Pipes Hoses Coolant Cooling Line 6C0122157A

€23.95

Part no. 8662836

BMW F20 F21 F30 F31 LCI B48 Hose Radiator Top Thermostat Coolant Water 8662836

€47.95

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