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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Mercedes-Benz A B W169 W245 Radiator Water Cooling Pipe Hose Bottom A1695010182

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5Q0122101BE

Audi A3 8V Water Hose Radiator Coolant Pipe Line Diesel 5Q0122101BE

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8W0122293AE

Audi A4 B9 2.0 TDI DETA Water Coolant Hose Line Tube Pipe 8W0122293AE

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 4F0819378F

Audi A6 C6 2.0 TFSI Coolant Water Heater Pipe Hose Line 4F0819378F

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5Q0122109J

Audi S3 8V VW Volkswagen Golf 7 Water Coolant Pipe Hose Line Tube 5Q0122109J

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A6395017482

Water Hose Mercedes Vito Viano W639 Cooling Coolant Pipe Line OM651 A6395017482

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 1K0122101DK-1

Audi TT 8J Upper Radiator Coolant Hose Pipe 2.0 TFSI BWA 1K0122101DK

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7507149

BMW G30 G31 G32 G11 G12 Radiator Coolant Pipe Hose Line 2.0 Hybrid 7507149

€42.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2044661381

Water Pipe Mercedes W204 M271 Engine Cooling Radiator Coolant Hose A2044661381

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A6512031482

Coolant Hose Mercedes W204 W212 OM651 Diesel Heater Water Pipe A6512031482

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. LR072039

Land Rover Discovery Sport L550 Water Coolant Pipe Hose Line 2.0 D GJ32-8C480-AA

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A6542030001

Mercedes W205 W213 OM654 Oil Cooler Pipe Hose Line A6542030001

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 07L121481H

Audi A6 C6 S8 D3 Engine Water Coolant Pipe Line Tube Hose 07L121481H

€66.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8J0201216C

Audi TT 8J Water Coolant Hose Line Return Tube Pipe 8J0201216C

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. M8D2-8C480-BB

Land Rover Discovery Sport L550 Coolant Hose Pipe 2.2 Diesel M8D2-8C480-BB

€42.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A1635010182

Mercedes W163 Engine Radiator Hose Tube Line Pipe ML 350 112970 A1635010182

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5Q0122073H

Seat Leon 5F Water Coolant Pipe Hose Cooling Line 2.0 TDI Diesel 5Q0122073H

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6R0122447K-1

Audi A1 8X Coolant Water Pipe Hose Line Engine Cooling 6R0122447K

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2575012900

Bleed Line Mercedes W213 Diesel M656 Coolant Water Hose A2575012900

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2538308801

Heater Coolant Hose Mercedes C253 W213 Water Pump Heater Line A2538308801

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7P0121065AC

Volkswagen Touareg 7P Preheater Pipe Hose Line 3.0 TDI 7P0121065AC

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2742031202

Water Hose Mercedes W204 C207 W212 W205 W213 M274 Coolant Line Pipe A2742031202

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7852352

Coolant Hose BMW F90 M5 F92 M8 Water Cooling Pipe Line 7852352

€42.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A1332000551

Mercedes W176 M133 45 AMG Coolant Pipe Hose Line Tube A1332000551

€37.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8515509

BMW X5 F15 Radiator Top Coolant Pump Hose Cooling System 8515509

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 1335277

Land Rover Discovery 3 L319 Water Coolant Pipe Hose Line 2.7 V6 4H2Q-6720-CD

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. M8D2-8260-AB

Range Rover Evoque L551 Radiator Coolant Pipe Hose 2.0 Diesel M8D2-8260-AB

€42.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7515489

BMW Mini Cooper One R50 R52 Petrol W10 Radiator Coolant Hose 7557167

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 1K0121070BB

Volkswagen Touran 1T Water Coolant Pipe Hose Line Tube 1.4 TSI 1K0121070BB

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6922394

Mini Cooper R50 Hose Heater Radiator 6922394

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A1332000582

Mercedes W176 M133 A45 AMG Coolant Water Pipe Hose Line Tube A1332000582

€61.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7827842-1

BMW F10 X5 F15 X6 F16 Coolant Hose Cooling Water Line Diesel N57N 7827842

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 3Q0121156D

Volkswagen Caddy SB Engine Cooling System Hose Pipe 2.0 TDI 3Q0121156D

€89.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7P6122051D

Volkswagen VW Touareg 7P Coolant Hose Pipes Line 3.0 TDI Diesel 7P6122051D

€56.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7L0815857C

VW Volkswagen Touareg 7L Water Heater Coolant Pipe Hose Line 7L0815857C

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7592652

Water Hose BMW F10 F11 F12 F13 N63 Petrol Cooling Coolant Pipe Line 7592652

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A6510101782

Vent Hose Mercedes Vito W447 Diesel OM651 Engine Breather Line A6510101782

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7795909

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

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 1K0122101GG

Audi A3 8P Water Coolant Pipe Hose Line 1.8 FSI BZB Petrol Engine 1K0122101GQ

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8841819

BMW U06 X2 U10 X1 U11 Water Coolant Return Pipe Hose Line B38X 8841819

€118.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 1K0122447GF

Volkswagen Passat B7 Coolant Pipe Hose Line 2.0 TDI 1K0122447GF

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5Q0122073BK

Audi Q3 8U Water Coolant Hose Tube Line Pipe 2.0 TDI Diesel 5Q0122073BK

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7840661

BMW 3 Series E90 E91 E92 M3 S65 Radiator Bottom Thermostat Coolant Hose 7840661

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 1437493

Accumulator Flange BMW X5 E53 E38 Cooling System 1702200

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8S0201801

Audi TT FV Petrol Activated Charcoal Tank Reservoir 8S0201801

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7P0121065M-1

Volkswagen Touareg 7P Oil Cooler Cooling Tube Pipe Hose Line 3.0 TDI 7P0121065M

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2125018282

Mercedes W204 W212 Water Pipe OM651 Engine Cooling Coolant Hose Line A2125018282

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2223270044-1

Mercedes C216 W212 S212 Water Hose Coolant Cooling Pipe Line A2223270044

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. PCH001150

Range Rover L322 Radiator Cooling Hose Pipe Line PCH001150

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5N0121086J

Volkswagen Tiguan 5N Audi Q3 8U Coolant Hose Pipe Line 2.0 TDI 5N0121086J

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 06K121132

Audi S3 8V Water Coolant Engine Cooling Flange Pipe Hose Line Petrol 06K121132

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 1K0121058D

VW Volkswagen EOS 1F Golf Gti 1K Coolant Hose Tube Line Pipe 2.0 TDI 1K0121058D

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. M8A2-8B505-CB

Range Rover Velar L560 Water Coolant Hose Pipe Line 2.0 Diesel M8A2-8B505-CB

€37.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7521067

BMW E81 E87 E90 Petrol Radiator Engine Oil Cooling Hose Pipe 7521067

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 07K121133E

Audi RS3 8V RSQ3 F3 Water Coolant Pump Regulator Flange 2.5 TFSI 07K121133E

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8841818

BMW U06 X1 U11 Water Coolant Feed Pipe Hose Line B38X 8841818

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8K0122293AE

Porsche Macan 95 Audi A4 S4 8K A5 S5 8F Thermostat Quick Coupling 8K0122293AE

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2048304496

Mercedes C204 S04 W204 Recirculation Pump Hose Tube Line Pipe A2048304496

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5Q0122051CM

Volkswagen Golf 5G 2.0 TDI Water Hose Radiator Coolant Pipe Line 5Q0122051CM

€61.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7812944

BMW F30 F32 LCI 330d 335dX 430d 435dX Engine Radiator Coolant Hose Pipe Line

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 99610621206

Porsche Boxster 986 Cooling Engine Water Coolant Hose Pipe 99610621206

€37.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7627104

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

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 1781999

Ford B-Max Water Coolant Hose Pipe Line C1B1-18K580-CA

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 3Q0121070AG

Audi Q2 GA 2.0 TDI Water Hose Cooling Radiator Coolant Pipe Line 3Q0121070AG

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A6542032901

Mercedes C118 Water Coolant Pipe Hose Line A6542032901

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 06F121492B

Volkswagen Golf GtI 1K Audi A3 8P Engine Coolant Hose Tube Line Pipe 06F121492B

€184.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5Q0122101DA

Seat Lean Cupra 5F Ibiza 6P Coolant Flange Pipe Line Tube Coupling 5Q0122291DA

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 03E121065A

VW Volkswagen Polo 6R Solid Water Coolant Pipe Hose Line Tube 03E121065A

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A6422030017

Mercedes W203 W204 A207 W906 Breather Hose Pipe Hose Line Diesel A6422030017

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2045010325

Coolant Hose Mercedes W204 C207 OM642 Radiator Expansion Tank Pipe A2045010325

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A6512033482

Mercedes W447 M651 Diesel Water Coolant Pipe Cooling Hose A6512033482

€23.95

Free delivery: Aug 5 – 10

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: Aug 5 – 10

If paid before 14:00

Part no. A1332000382

Mercedes W176 Water Hose Heat Exchanger Thermostat Pipe A45 AMG A1332000382

€42.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5K0121070C

Volkswagen Golf Mk6 Water Hose Cooling Coolant Radiator Pipe Line 5K0121070C

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 03L121131K

VW Transporter T5 2.0 TDI CAAA Sealing Flange Temperature Sender 03L121131K

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 3C0122101FL

Volkswagen Seat Skoda Audi Water Coolant Pipe Line Hose 2.0 TDI 3C0122101FL

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A9068322223

Mercedes W906 OM646 Water Coolant Heater Return Hose Pipe Tube Line A9068322223

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 059121075BT

Audi Q7 4L 3.0 TDI BUG Diesel Engine Water Coolant Hoses Line Pipe 059121075BT

€80.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A6512030602

Mercedes W176 Coolant Pipe Engine Block Water Line Diesel OM651 A6512030602

€23.95

Free delivery: Aug 5 – 10

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: Aug 5 – 10

If paid before 14:00

Part no. 8833572

BMW i4 G26 Battery Cooling System Accumulator Coolant Connector Flange 8833572

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 1337652

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

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. G4D3-8555-BC-1

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

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8V0121124-1

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

€56.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A6422001556

Mercedes W213 C238 W222 Engine Water Coolant Hose Connector OM642 A6422001556

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 982121101C

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

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2215019282

Mercedes C216 W221 S65 AMG M275 Auxiliary Radiator Coolant Pipe A2215019282

€56.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5A07782

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

€75.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. AV41-8K012-BB

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

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7531581

Thermostat Coolant Pipe BMW E87 E90 E91 Hose Radiator Bottom 7531581

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6C0122101E

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

€37.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6C0122051AE

Audi A1 8X 1.4 TFSI CZCA Coolant Hose Line Tube Pipe 6C0122051AE

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. DG93-18C266-FE

Ford Mondeo Mk5 Coolant Radiator Water Hose Pipe Tube Line DG93-18C266-FE

€42.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. FPLA-8584-CB

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

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7515989-1

Mini R50 R52 Top Upper Radiator Coolant Hose 7515989

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2055014900

Mercedes W205 Heater Water Cooling Coolant Pipe Hose Line A2055014900

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2135015301

Mercedes W213 Water Coolant Pipe Hose Line Tube A2135015301

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8509274

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

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7509966

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

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

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