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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Ford Kuga Mk1 Cooling System Coolant Water Pipe Hose 2.0 Diesel AV61-8C351-BC

£18.95

Free delivery: Sep 08

If paid before 14:00

Part no. 9292729

BMW i3 I01 Water Coolant Cooling Hose Return Pipe Line Expansion Tank 9292729

£18.95

Free delivery: Sep 08

If paid before 14:00

Part no. 7644104

BMW X5 F15 Water Hose Coolant Cooling Tube Pipe Line 7644104

£56.95

Free delivery: Sep 08

If paid before 14:00

Part no. 8K0133889B

Audi RS4 B8 4.0 FSI CFSA Petrol Coolant Hose Upper Top Left O/S 8K0133889B

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 079121071BN

Audi A5 S5 8T 4.2 V8 FSI Solid Coolant Pipe Water Hose Line 079121071BN

£18.95

Free delivery: Sep 08

If paid before 14:00

Part no. RHD-8W2819332

Audi A4 B9 A5 F5 Engine Cooling Water Coolant Water Hose Pipe Line 8W2819332

£23.95

Free delivery: Sep 08

If paid before 14:00

Part no. 4G2819350K

Audi A7 4G Heater Radiator Hose Line Pipe 4G2819350K

£28.95

Free delivery: Sep 08

If paid before 14:00

Part no. A2125016184

Coolant Pipe Mercedes C207 C218 M276 Petrol Water Hose A2125016184

£28.95

Free delivery: Sep 08

If paid before 14:00

Part no. 4K0121520B

Audi A6 C8 Engine Water Cooling Pipe Hose Line 50 TFSIe 4K0121520B

£37.95

Free delivery: Sep 08

If paid before 14:00

Part no. AH22-9P924-AA

Land Rover Discovery 4 L319 Water Coolant Pipe 3.0 TDV6 AH22-9P924-AA

£23.95

Free delivery: Sep 08

If paid before 14:00

Part no. A2125019882

Mercedes W212 OM651 Water Pipe Engine Cooling Coolant Hose Line A2125019882

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. RHD-A2065014300

Mercedes W206 M254 Petrol Engine Water Coolant Hose Line Pipe Tube A2065014300

£85.95

Free delivery: Sep 08

If paid before 14:00

Part no. A4475013182-1

Mercedes W447 OM651 Coolant Hose Radiator Engine Water Cooling Line A4475013182

£18.95

Free delivery: Sep 08

If paid before 14:00

Part no. 1K0121049CJ

Volkswagen Scirocco Mk3 Golf MK6 Water Radiator Pipe Hose 1.4 TSI 1K0121049CJ

£47.95

Free delivery: Sep 08

If paid before 14:00

Part no. RHD-A2065014400

Mercedes W206 M254 Petrol Engine Water Coolant Hose Line Pipe Tube A2065014400

£66.95

Free delivery: Sep 08

If paid before 14:00

Part no. A1665003475

Mercedes W166 W292 Petrol Engine Cooler Coolant Hose Line Tube Pipe A1665003475

£23.95

Free delivery: Sep 08

If paid before 14:00

Part no. A2712030382

Mercedes W205 Engine Water Coolant Pipe Hose M271 Petrol A2712030382

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 05C122447Q

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

£18.95

Free delivery: Sep 08

If paid before 14:00

Part no. CPLA-18C266-AB

Range Rover L405 Water Coolant Hose Pipe Line 4.4 Diesel CPLA-18C266-AB

£23.95

Free delivery: Sep 08

If paid before 14:00

Part no. A2058308402-1

Mercedes W205 S205 W213 S213 Water Hose Cooling Coolant Pipe Line A2058308402

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 7846363

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

£70.95

Free delivery: Sep 08

If paid before 14:00

Part no. A2125011684

Cooling Pipe Mercedes C207 W212 C218 M276 Coolant Hose Water A2125011684

£18.95

Free delivery: Sep 08

If paid before 14:00

Part no. 4G0121485AF

Audi S6 C7 S7 4G Water Radiator Coolant Pipe Hose Lower Right O/S 4G0121485AF

£18.95

Free delivery: Sep 08

If paid before 14:00

Part no. 9800488

Mini Cooper One R60 R61 Cooling System Water Vent Hose 9800488

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. A9108303000

Mercedes Sprinter W910 OM651 Water Hose Cooling Coolant Pipe Line A9108303000

£37.95

Free delivery: Sep 08

If paid before 14:00

Part no. 2532016

Ford Transit Connect Water Coolant Pipe Hose Line 2.0 EcoBlue GK21-8260-BD

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 996106611-1

Porsche Boxster 986 Coolant Supply Hose Line Tube Pipe Left N/S 996106621

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 5QH815097C

Volkswagen Tiguan Ad1 Coolant Pipe Feed Return Hose Tube Line 5QH815097C

£70.95

Free delivery: Sep 9 – 16

If paid before 14:00

Part no. A2642001001

Mercedes W205 Water Hose Engine Coolant Cooling Pipe Line M264 A2642001001

£28.95

Free delivery: Sep 08

If paid before 14:00

Part no. RHD-4G2819350Q

Audi A6 C7 Water Pipe Hose Engine Coolant Cooling Line 4G2819350Q

£23.95

Free delivery: Sep 08

If paid before 14:00

Part no. 04E122157H

Turbocharger Cooling Line VW Golf MK7 Audi A3 8V 1.4 TSI Water Pipe 04E122157H

£18.95

Free delivery: Sep 08

If paid before 14:00

Part no. RHD-A4478301302

Mercedes W447 Refrigerant Expansion Valve Pressure Line Hose Tube A4478301302

£37.95

Free delivery: Sep 08

If paid before 14:00

Part no. 3C0121157AA

Audi A3 8P Engine Water Coolant Pipe Hose Line 1.9 TDI 3C0121157AA

£18.95

Free delivery: Sep 08

If paid before 14:00

Part no. A2468308800

Mercedes W176 W246 Heat Exchanger Water Coolant Hose Pipe Line A2468308800

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 7547185

BMW 5 7 Series E60 E61 E65 545i 735i Crankcase Ventilation Vent Pipe 7547185

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. A2078301396

Mercedes C207 M276 Petrol Engine Water Coolant Pipe Hose Tube Line A2078301396

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 8654907

BMW G20 G21 G22 G23 G26 G42 Automatic Gearbox Oil Cooling Hose 8654907

£28.95

Free delivery: Sep 08

If paid before 14:00

Part no. 5Q0122051AR

Skoda Octavia Mk3 Audi A3 8V Engine Water Coolant Pipe Hose 1.6 TDI 5Q0122051AR

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 996106615-1

Porsche Boxster 986 Petrol Engine Water Coolant Pipe Hose Line Tube 996106627

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 5Q0121064AT

Skoda Octavia RS 5E 2.0 TFSI Engine Coolant Pipe Hose Line 5Q0121064AT

£23.95

Free delivery: Sep 08

If paid before 14:00

Part no. 7926446

BMW X3 G01 Coolant Radiator Line Pipe Cooler Tube 7926446

£28.95

Free delivery: Sep 08

If paid before 14:00

Part no. 8629960

Mini F55 F56 Petrol Turbo Charger Coolant Hose Oil Pipe Line 8629960

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 5Q0122058G

Skoda Superb 3V VW Golf MK7 Audi Water Coolant Hose Pipe Line 5Q0121064AD

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 8W0819885B

Audi A5 S5 F5 Water Hose Cooling Coolant Radiator Pipe Line 3.0 TDI 8W0819885B

£28.95

Free delivery: Sep 08

If paid before 14:00

Part no. 06J133781BE

Audi TT 8J Water Hose Cooling Radiator Coolant Pipe Line 06J133781BE

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. A6398321823

Water Hose Mercedes Vito W639 Cooling Radiator Coolant Pipe Hose A6398321823

£28.95

Free delivery: Sep 08

If paid before 14:00

Part no. RHD-8W2819371

Audi A4 B9 A5 F5 Coolant Water Hose Line Tube Pipe 8W2819371

£23.95

Free delivery: Sep 08

If paid before 14:00

Part no. 6775533

BMW 1 Series E81 E87 LCI Petrol Radiator Return Hose Line Pipe 6775533

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 94810613005

Porsche Cayenne 9PA Water Sleeve Coolant Cooling System 94810605904 94810613005

£151.95

Free delivery: Sep 9 – 16

If paid before 14:00

Part no. A2219970952

Mercedes W221 S65 AMG M275 Oil Pipe Hose from Cooler to Tank A2219970952

£37.95

Free delivery: Sep 08

If paid before 14:00

Part no. 80A121030N-1

Audi Q5 FY Engine Water Coolant Pipe Hose Line Tube 2.0 TDI 80A121030N

£42.95

Free delivery: Sep 08

If paid before 14:00

Part no. A2128304096

Mercedes C218 S212 W212 Auxiliary Water Pump Cooling Pipe Line Hose A2128304096

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 7580963

BMW F12 Drive Cooling Coolant Hose Line Pipe 7580963

£23.95

Free delivery: Sep 08

If paid before 14:00

Part no. A2215014682

Mercedes W221 Radiator Coolant Hose Pipe Line S350 Petrol Engine A2215014682

£23.95

Free delivery: Sep 08

If paid before 14:00

Part no. RHD-4K2819377E

Audi A6 C8 Engine Cooling Water Pipe Coolant Hose Line Set 4K2819377E 4K0819377R

£75.95

Free delivery: Sep 08

If paid before 14:00

Part no. 9326896

Water Hose BMW G30 G31 G11 B57 Diesel Radiator Coolant Pipe Line 9326896

£18.95

Free delivery: Sep 08

If paid before 14:00

Part no. A2515002175

Mercedes W251 Diesel OM642 Coolant Hose Engine Water Cooling Line A2515002175

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 7636951

BMW i3 I01 Coolant Hose Water Cooling Pipe Line 7636951

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 5Q0121096C

Skoda Octavia Mk3 VW Golf Mk7 Water Coolant Pipe Hose Line 2.0 TFSI 5Q0121096C

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 5Q0121156C

Volkswagen VW Golf SV Petrol Engine Coolant Pipe Hose Vent 5Q0121156C

£18.95

Free delivery: Sep 08

If paid before 14:00

Part no. 80A122055CH-1

Audi Q5 FY Engine Coolant Pipe Hose Line 40 TDI 80A122055CH

£28.95

Free delivery: Sep 08

If paid before 14:00

Part no. 06F121132G

Audi S3 8P 2.0 TFSI CDLA Coolant Flange Pipe Hose Line 06F121132G

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 7616039

BMW i3 I01 Coolant Hose Water Cooling Pipe Line 7616039

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 80A121400B-1

Audi Q5 FY Water Hose Cooling Coolant Radiator Pipe Line 40 TDI 80A121400B

£32.95

Free delivery: Sep 08

If paid before 14:00

Part no. 5N0121070M

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

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 9166925

BMW X3 F25 N47N Diesel Engine Water Hose Coolant Cooling Pipe Line 9166925

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. A2515018382

Coolant Hose Mercedes W251 Diesel OM642 Radiator Water Cooling Line A2515018382

£23.95

Free delivery: Sep 08

If paid before 14:00

Part no. 8519112

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

£23.95

Free delivery: Sep 08

If paid before 14:00

Part no. 8517590

BMW X5 F15 X6 F16 Radiator Coolant Cooling Pipe Hose Line 40d Diesel 8517590

£18.95

Free delivery: Sep 08

If paid before 14:00

Part no. 8W0122291AB

Audi A4 B9 35 TFSI DMSB Petrol Water Coolant Hose Line Tube Pipe 8W0122291AB

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. A2215013584

Mercedes W221 Water Coolant Pipe Hose Line S350 M272 Petrol A2215013584

£18.95

Free delivery: Sep 08

If paid before 14:00

Part no. 8K0121049AF

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

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 7649301

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

£42.95

Free delivery: Sep 08

If paid before 14:00

Part no. RHD-Q0008582V002000000

Smart ForTwo C450 Water Hose Radiator Coolant Pipe Line Q0008582V002000000

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 4K0121140B

Audi A6 C8 Engine Water Coolant Cooling Pipe Hose Line 50 TFSIe 4K0121140B

£23.95

Free delivery: Sep 08

If paid before 14:00

Part no. 7623678

Coolant Hose BMW i3 I01 Hybrid Rex Water Cooling Pipe Radiator 7623678

£23.95

Free delivery: Sep 08

If paid before 14:00

Part no. A2065011700

Mercedes W206 M254 Petrol Engine Water Coolant Hose Pipe Line Tube A2065011700

£28.95

Free delivery: Sep 08

If paid before 14:00

Part no. 9307242

BMW 3 4 Series F80 M3 F82 E83 M4 Radiator And Engine Return Hose 9307242

£28.95

Free delivery: Sep 08

If paid before 14:00

Part no. A1645061535

Mercedes ML W164 Coolant Water Cooling Hose Pipe Line Petrol A1645061535

£28.95

Free delivery: Sep 08

If paid before 14:00

Part no. 05L122157AS

Audi A4 B9 A5 F5 Water Cooling Coolant Pipe Hose Line 2.0 TDI 05L122157AS

£23.95

Free delivery: Sep 08

If paid before 14:00

Part no. A4158305800

Mercedes W415 Water Hose Coolant Cooling Pipe Line A4158305800

£23.95

Free delivery: Sep 08

If paid before 14:00

Part no. 06E121044M

Audi A6 C7 A4 B8 A7 4G A8 D3 Coolant Hose Line Tube Pipe 06E121044M

£23.95

Free delivery: Sep 08

If paid before 14:00

Part no. 6R0122101DJ

Audi A1 S1 8X 2.0 TFSI Petrol Water Coolant Pipe Hose Line 6R0122101DJ

£47.95

Free delivery: Sep 08

If paid before 14:00

Part no. 7605640

BMW F12 F13 F06 Coolant Hose Radiator Line Water Pipe 7605640

£37.95

Free delivery: Sep 08

If paid before 14:00

Part no. A2065015100

Mercedes W206 M254 Petrol Engine Coolant Hose Pipe Line Tube A2065015100

£66.95

Free delivery: Sep 08

If paid before 14:00

Part no. 9170342

BMW F07 F10 F11 F12 F13 F01 F02 Coolant Return Pipe Hose Line 9170342

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. RHD-Q0008579V002000000

Smart ForTwo C450 Water Hose Radiator Coolant Pipe Line Q0008579V002000000

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. A2602000051

Mercedes W177 Water Hose Water Coolant Cooling Pipe Line A2602000051

£28.95

Free delivery: Sep 08

If paid before 14:00

Part no. A2068300602

Mercedes W206 M254 Petrol Engine Coolant Hose Pipe Line Tube A2068300602

£75.95

Free delivery: Sep 08

If paid before 14:00

Part no. 9119192

BMW F07 F10 F12 Water Hose Inlet Coolant Pipe Line Tube 9119192

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 8W0819342L-1

Audi A5 F5 Water Return Coolant Pipe Hose Flow Line 8W0819342L

£28.95

Free delivery: Sep 9 – 16

If paid before 14:00

Part no. A2118303996

Water Hose Mercedes W211 CLS W219 Engine Coolant Cooling Pipe Line A2118302596

£23.95

Free delivery: Sep 08

If paid before 14:00

Part no. A2782000551

Mercedes W212 M157 Water Coolant Return Pipe Hose Line A2782000551

£18.95

Free delivery: Sep 08

If paid before 14:00

Part no. A2068307402

Mercedes W206 M254 Petrol Engine Coolant Hose Pipe Line Tube A2068307402

£32.95

Free delivery: Sep 08

If paid before 14:00

Part no. 99610650204

Porsche Boxster 986 Engine Coolant Cooling Water Pipe Hose Tube Line 99610650204

£66.95

Free delivery: Sep 08

If paid before 14:00

Part no. rhd-A2118302896

Water Hose Mercedes W211 CLS W219 Engine Coolant Cooling Pipe Line A2118302896

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 8573220

Water Hose BMW G30 G31 G11 B57 Diesel Radiator Coolant Pipe Line 8573220

£28.95

Free delivery: Sep 08

If paid before 14:00

Part no. 9886652

BMW U06 U11 F70 F74 Coolant Hose Line Return Tube Pipe 9886652

£23.95

Free delivery: Sep 08

If paid before 14:00

Part no. A2065010200

Mercedes W206 M254 Lower Cooler Coolant Hose Pipe Line Tube A2065010200

£89.95

Free delivery: Sep 08

If paid before 14:00

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