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

€37.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 2283594

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

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 03L122157F

Audi A4 B8 2.0 TDI Water Hose Radiator Coolant Pipe Line 03L122157F

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 8K0819332G

Audi A4 B8 2.0 TDI Water Hose Cooling Radiator Coolant Pipe Line 8K0819332G

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 7555342

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

€26.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 7846363

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

€80.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 7L6122051T

Audi Q7 4L 3.0 TDI BUG Water Coolant Hose Pipe Line Tube 7L6122051T

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 7514406

BMW Z4 Series E85 M54 Radiator Water Hose Coolant Pipe 7514406

€37.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 7518503-1

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

€28.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 03G121071A

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

€37.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 7515501

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

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 3422606

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

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. A9075282300

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

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. A2662000052-1

Coolant Hose Mercedes W169 W245 M266 Water Pipe A2662000052

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 03C121497F

Audi A1 8X Water Pipe Hose Line Engine Cooling Coolant Unit Hose 03C121497F

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 5Q0122073AE

Audi Q3 8U Water Coolant Hose Tube Line Pipe 2.0 TDI DFTA Diesel 5Q0122073AE

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. A2468304596

Water Hose Mercedes W176 W246 Diesel OM651 Cooling Coolant Pipe A2468304596

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 7797258

BMW 1 3 er E90 E91 E92 E93 N47 Diesel Radiator Bottom Thermostat Hose 7797258

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 6939219

BMW Z4 er E85 E86 Cooling Radiator Expansion Tank Hose Pipe 6939219

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 8514234

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

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 059121065AK

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

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 8571595

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

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 8K0819342J

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

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 8512420

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

€28.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. A9078304700

Mercedes Sprinter W907 Diesel OM654 Coolant Hose Heating Water Line A9078304700

€28.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 04L122157BF

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

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 7565091

BMW E81 E82 E87 Radiator Expansion Tank Ventilation Line Pipe Hose Top 7565091

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 8573157

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

€37.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 6C0122109A

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

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 8K0121049L

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

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. A2515002175

Mercedes W251 Diesel OM642 Coolant Hose Engine Water Cooling Line A2515002175

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 2E0122096E-1

VW Volkswagen Crafter 2E Coolant Hoses Water Cooling Pipe 2E0122096E

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. A2465010482

Mercedes W176 W246 OM651 Water Hose Engine Radiator Coolant Pipe A2465010482

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 7843264

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

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. A6120160681

Mercedes W906 OM611 OM612 OM646 OM647 Cylinder Head Molded Hose Line A6120160681

€28.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 06F121065H

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

€42.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 5Q0122073AN

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

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. A2045010224

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

€37.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 7795909

Radiator Cover BMW E70 E71 F15 M57N2 N55 N57S Coolant Bottom Trim Panel 7795909

€23.95

Free delivery: Sep 9 – 11

If paid before 14:00

Part no. 7508012

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

€28.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. GJ32-8286-AB

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

€32.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 6C1Q8250AA

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

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 1K0122101GQ

Audi A3 8P 1.4 TFSI CAXC Water Coolant Pipe Hose Line 1K0122101GQ

€28.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 3AA122073A

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

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 7552391

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

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 8K0121049AF

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

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 7627104

Coolant Hose BMW F30 F87 M2 N55 Engine Radiator Cooling Pipe Line 7627104

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 7596837

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

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. A2048301096

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

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 8611277

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

€32.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 2754222-1

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

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. A1645011182

Mercedes-Benz M ML W164 Engine Radiator Coolant Hose Pipe Bottom A1645011182

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 1K0122157JH

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

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. A2215011582

Mercedes Radiator Hose W221 Lower Coolant Line Hose Diesel A2215011582

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 5Q0122073AB

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

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. BK3Q8K520BB

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

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 9329645

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

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 8K0121055B

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

€32.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 7848500

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

€108.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 03L122157K

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

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 8571606

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

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 7552405

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

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. A6462030482

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

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 7525022

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

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 9222651

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

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 9800480

Mini Cooper R60 R61 Cooling System Coolant Radiator Water Hose 9800480

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. A2048308496

Water Pipe Mercedes W204 W207 OM651 Cooling Coolant Hose Line A2048308496

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 6C1Q8N039AC

Ford Transit Mk7 Oil Cooler Hose Engine Coolant Pipe 2.2 TDCI 6C1Q-8N039-AC

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 8645546

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

€28.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. A6512001482

Coolant Hose Mercedes W204 Diesel OM651 Water Engine Cooling Line A6512001482

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 3C0122051AT

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

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 8380127

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

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. A2135014100

Water Hose Mercedes W213 S213 Radiator Cooling Coolant Pipe A2135014100

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 8510307

BMW F20 F21 F31 N47S1 Radiator Coolant Hose Pipe Line 8510307

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 5Q0122051BE

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

€42.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 7798496

Coolant Hose BMW E70 E71 M57N2 Water Cooling Pipe Radiator 7798496

€32.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 1K0121157BJ

Audi A4 B7 2.0 TDI Diesel Water Hose Cooling Coolant Pipe Line 1K0121157BJ

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 7853727

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

€28.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 06E121065H

Audi A4 B7 A8 A6 Coolant Hose Pipe Line 06E121065H

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. A2128301896

Water Pipe Mercedes W212 Engine Cooling Coolant Hose Line A2128301896

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 6C1118K579BD

Ford Transit Mk7 V Water Hose Engine Cooling Radiator Coolant Pipe 6C1118K579BD

€28.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. A2468302896

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

€28.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 6C0122157A

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

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 8662836

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

€47.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. A2055017601

Bleed Hose Mercedes W205 Coolant Expansion Tank To Radiator Line A2055017601

€28.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 8K0819337A

Audi A4 B7 2.0 TDI BRE Diesel Water Coolant Pipe Hose Line Tube 8K0819337A

€28.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 8K0121049AF-1

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

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 3422607

BMW X3 Series E83 LCI Radiator And Engine Return Hose 3422607

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. BK3Q8K520B2B

Ford Transit Mk8 Water Hose Cooling Coolant Pipe Line 2.2 TDCI BK3Q8K520B2B

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. A6402001452

Thermostat Hose Mercedes W169 W245 OM640 Water Coolant Pipe Line A6402001452

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 06D121085C

Audi A4 B7 A6 C6 Water Coolant Hose Line Tube Pipe 2.0 TFSI BWE 06D121085C

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 8C1Q-9Y438-AA

Ford Transit Water Hose Engine Cooling Radiator Coolant Pipe 8C1Q-9Y438-AA

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 7552404

BMW 1 Series E81 E82 E87N N43 Cooling Radiator Water Hose Pipe Petrol 7552404

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 8E0121101AA

Audi A4 B7 2.0 TDI Water Hose Cooling Coolant Radiator Pipe Line 8E0121101AA

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 7794156

BMW X5 Series E70 Engine Pipe Coolant Hose Radiator 7794156

€47.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 7794153

BMW X5 E70 Engine Pipe Coolant Hose Radiator 7794153

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 7535900

Mini Cooper R50 R52 Radiator Cooling System Coolant Hose 7535900

€32.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 3400409

BMW X3 Series E83 M47N2 Heater Water Valve Flow Radiator Hose Pipe Line 3400409

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 6C1Q8K520AB

Coolant Flange Pipe Ford Transit MK7 Tdci Diesel Water Line 6C1Q8K520AB

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

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