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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Volkswagen Polo 6C Audi A1 8X Radiator Coolant Hose Pipe 1.0 TFSI 6C0122049A

€28.95

Part no. 04L121131A

Audi A4 B8 A5 8T Water Coolant Flange Pipe Hose Line 2.0 TDI 04L121131A

€23.95

Part no. 8667356

BMW 3 Series F30 LCI 330e B48X Radiator Coolant Return Hose Line Pipe 8667356

€23.95

Part no. 4G0122109AA

Audi A6 C7 A7 4G Radiator Water Coolant Pipe Hose Line 3.0 TDI 4G0122109AA

€23.95

Part no. A2535018382

Mercedes X253 GLC220D Radiator Transmission Cooler Expansion Tank Coolant Hose

€32.95

Part no. 04L121131AB

Audi A3 8V 2.0 TDI DGCA Coolant Water Flange Housing Hose Line 04L121131AB

€28.95

Part no. 5Q0122291BB-1

Seat Leon Cupra 5F Water Coolant Hose Line Tube Pipe Quick Coupling 5Q0122291BB

€23.95

Part no. 9314672

BMW G11 G12 G30 Coolant Hose Pipe Line Supply Hybrid 9314672

€32.95

Part no. K6D38B159E

Range Rover Sport L494 Water Coolant Pipe Hose Line 3.0D Aj20D6 K6D3-8B159-E

€70.95

Part no. 7952845

Mini F65 F66 F67 BMW F70 X1 U11 Coolant Water Hose Pipe Line 2.0 Petrol 7952845

€42.95

Part no. 8W0122449CK

Audi A4 B9 A5 F5 Water Coolant Pipe Hose Line 3.0 TDI 8W0122449CK

€23.95

Part no. 05E121497A

Volkswagen Golf CD1 Coolant Pipe Turbocharger Flow Line Hose Pipe 05E121497A

€23.95

Part no. A2098300196

Mercedes CLK-Class C209 W209 Engine Motor Cooling Coolant Hose Line A2098300196

€23.95

Part no. 06A103217G

VW Golf Mk5 Audi A3 8P Engine Breather Line Cylinder Head Hose 06A103217G

€23.95

Part no. 9X2Q9C993HB

Land Rover Range Sport L320 3.0d Fuel Injection Line Pressure Pipe Injector Set

€51.95

Part no. 8K0121081AT

Audi A4 B8 A5 8T Engine Breather Hose Tube Pipe Line 8K0121081AT

€23.95

Part no. 7H0819320A

Volkswagen Transporter T5 Cooling Water Hose Coolant Pipe 2.5 TDI 7H0819320A

€23.95

Part no. 5Q0122101CN-1

Skoda Superb Mk3 1.6 2.0 Diesel Water Coolant Pipe Hose Line 5Q0122101CN

€28.95

Part no. K8D2-8B504-CA

Land Rover Range Rover Evoque L551 Coolant Hose Tube Line Pipe K8D2-8B504-CA

€23.95

Part no. A2742030382

Mercedes W204 W205 W213 Water Coolant Pipe Hose Line A2742030382

€32.95

Part no. 06E103217K

Audi A4 B7 Engine Breather Vent Hose Pipe Line 3.2 Petrol 06E103217K

€28.95

Part no. 8J0121051L

Audi A4 B8 TT 8J Radiator Coolant Hose Pipe Cooling Line 8J0121051L

€32.95

Part no. 5Q0121049CL-2

Volkswagen Golf Mk7 Audi A3 8V Water Hose Coolant Radiator Pipe Line 5Q0121049CL

€51.95

Part no. A2602000051

Mercedes W177 Water Hose Water Coolant Cooling Pipe Line A2602000051

€23.95

Part no. PCH501003

Land Rover Discovery 3 L319 Water Hose Coolant Hose Pipe Line PCH501003

€23.95

Part no. LR125476

Range Rover Sport L494 Water Coolant Pipe Hose 3.0D AJ20D6 K6D3-8C480-AA

€32.95

Part no. 2380441

Ford Transit Courier Mk1 Intercooler Hose Pipe Line Insert JT76-6F073-BA

€70.95

Part no. 8U0122101

Audi RS Q3 8U Coolant Hose Upper Front With Quick Release Coupling 8U0122101

€23.95

Part no. 2H6145708A

Volkswagen Amarok 2H Intercooler Pressure Pipe Hose Line 3.0 TDI V6 2H6145708A

€70.95

Part no. 9X23-8B273-BB

Jaguar XF X250 XJ X351 Water Coolant Hose Pipe 3.0 V6 Diesel 9X23-8B273-BB

€23.95

Part no. A2642002501

Water Hose Mercedes W205 W213 Coolant Return Pipe Line A2642002501

€56.95

Part no. 5K0121064J-1

VW Caddy 2k Passat A3 Water Coolant Pipe Hose Tube Line 2.0 TDI 5K0121064J

€23.95

Part no. CC11-8286-AC

Ford Transit Mk8 Water Hose Engine Cooling Coolant Pipe 2.2 Diesel CC11-8286-AC

€23.95

Part no. A1330109500

Mercedes W176 C117 Engine Breather Bleed Line Pipe Hose A1330109500

€222.95

Part no. 038121132C

Volkswagen Transporter T5 Engine Coolant Flange Hose 1.9 TDI 038121132C

€23.95

Part no. 1K0121096AQ

Audi A3 8P Engine Coolant Hose Tube Line Pipe 1.6 Petrol BSE 1K0121096AQ

€28.95

Part no. 7824519

BMW F70 F74 Coolant Feed Return Line Pipe Battery Cooling Hose 7824518 7824519

€142.95

Part no. 5Q0121051B

Audi S3 8V VW Golf Mk7 Water Pipe Hose Engine Coolant Line 1.6 TDI 5Q0121051B

€23.95

Part no. 1K0121096BH

Audi A3 8P Water Hose Cooling Radiator Coolant Pipe Line 1K0121096BH

€23.95

Part no. KPLA-8063-AB

Range Rover Discovery L462 Engine Coolant Water Hose Pipe Line 3.0 KPLA-8063-AB

€51.95

Part no. 7P0815249

Porsche Cayenne 92A Coolant Pipe Hose Line 3.0 TFSI Petrol Engine 7P0815249

€28.95

Part no. 06K121085M-1

Audi VW Seat Petrol Water Pipe Engine Coolant Hose Line 2.0 TFSI 06K121085M

€23.95

Part no. 98150484300

Porsche 718 Cayman 982 Cooling Hose Support Bracket Mount Carrier 98150484300

€32.95

Part no. L8D2-8D280-AC

Land Rover Discovery Sport L550 Coolant Water Hose Pipe 1.5 PHEV L8D2-8D280-AC

€37.95

Part no. 03C121065B

Water Hose Volkswagen Golf 6 Audi A1 A3 8P Petrol Coolant Pipe 03C121065B

€23.95

Part no. 6C0122157K

Audi A1 8X Volkswagen Polo 6R Water Coolant Pipe Hose 1.0 TFSI 6C0122157K

€37.95

Part no. 06E121044AB

Audi S4 B8 S5 8T Engine Coolant Pipe Water Hose Line 3.0 TFSI 06E121044AB

€23.95

Part no. A6398320793

Heater Hose Mercedes Vito W639 OM646 Water Coolant Return Pipe A6398320793

€23.95

Part no. LPLA-8D033-AC

Range Rover Sport L494 Radiator Coolant Hose Pipe Line LPLA-8D033-AC

€85.95

Part no. 7P0122109C

Porsche Cayenne 92A Water Coolant Hose Pipe Line 3.0 TFSI Petrol 7P0122109C

€23.95

Part no. 5Q0122058B

Seat Leon Cupra 5F 2.0 TSI Water Hose Cooling Coolant Pipe Line 5Q0122058B

€23.95

Part no. A2118302515

Mercedes-Benz E CLS Class W211 W219 Engine Water Coolant Hose Pipe A2118302515

€23.95

Part no. A2742002982

Mercedes W204 Water Hose Coolant Cooling Pipe Line A2742002982

€32.95

Part no. 8053466

Coolant Hose BMW X3 F97 X4 F98 Water Charge Cooling Pipe 8053466

€32.95

Part no. 5Q0121063Q

Volkswagen Golf CD1 Water Pipe Hose Coolant Cooling Line 5Q0121063Q

€23.95

Part no. L8D2-8B159-BC

Land Rover Discovery Sport L550 Coolant Water Hose Pipe 1.5 PHEV L8D2-8B159-BC

€51.95

Part no. A6512000556

Mercedes C117 W176 W246 OM651 Engine Coolant Flange Connector Hose A6512000556

€23.95

Part no. 7L0815985

Audi Q7 4L VW Touareg 7L Auxiliary Heater Coolant Hose Pipe 3.0 TDi 7L0815985

€23.95

Part no. HJ32-8C012-AA

Land Rover Discovery Sport L550 Coolant Expansion Tank Pipe Hose HJ32-8C012-AA

€32.95

Part no. A2702000851

Water Pipe Mercedes C117 W176 W246 M270 Coolant Hose Line A2702000851

€32.95

Part no. A2055012601

Mercedes W205 Water Coolant Pipe Hose Bleed Line M274 Petrol A2055012601

€37.95

Part no. 03C121065L

Audi A1 8X Petrol Water Coolant Hose Pipe 03C121065L

€23.95

Part no. 9221117

BMW X3 F25 Engine Coolant Radiator Water Feed Hose Pipe Diesel 9221117

€23.95

Part no. 03C103493AG

VW Volkswagen Golf Mk6 Audi A3 8P Coolant Pipe Hose Genuine 03C103493AG

€23.95

Part no. A2742001751

Mercedes W204 M274 Engine Coolant Water Pipe Hose A2742001751

€28.95

Part no. LR125619

Range Rover Sport L494 Turbo Water Pipe Tube Hose 3.0D AJ20D6 K6D3-8K598-FB

€75.95

Part no. 8U0121109

Audi Q3 RSQ3 8U Engine Water Coolant Hose Pipe Cooling Line 8U0121109

€23.95

Part no. 2544406

Ford Transit Courier Water Coolant Pipe Hose Line 1.5 TDCI JT76-8B274-DC

€28.95

Part no. 038121121D

Volkswagen Transporter T5 Coolant Thermostat Housing Pipe 1.9 TDI 038121121D

€23.95

Part no. 03H121058B

Volkswagen Passat CC Engine Coolant Hose Water Pipe Line 03H121058B

€23.95

Part no. 8W0819334F

Audi A4 B9 35 TFSI Water Hose Cooling Radiator Coolant Pipe Line 8W0819334F

€23.95

Part no. A6398328123

Mercedes Vito W639 Heat Exchanger Water Coolant Hose Pipe Line A6398328123

€23.95

Part no. CC11-3691-AB

Ford Transit Mk7 Coolant Hose Cooling Water Line Pipe Diesel CC11-3691-AB

€23.95

Part no. A6398320893

Water Hose Mercedes Vito W639 Cooling Radiator Coolant Pipe Hose A6398320893

€23.95

Part no. 2094289

Ford Ranger Mk6 Water Coolant Hose Pipe Line 2.2 TDCI Diesel AB39-18K579-AC

€32.95

Part no. 1487291

Ford Fiesta ST Mk5 Thermostat Coolant Hose Line Tube Pipe 1487291

€42.95

Part no. A4535034382

Smart 453 Water Coolant Pipe Hose Line M281 924004422R

€23.95

Part no. A6398321893

Mercedes W639 Engine Coolant Water Hose Cooling Pipe OM651 Diesel A6398321893

€23.95

Part no. 8605434

BMW 1 3 Series F20 F21 F30 F31 LCI Radiator Thermostat Hose 17128605434 8605434

€23.95

Part no. 04L121026R-1

Audi A5 8T 2.0 TDI CNHA Thermostat Housing Pipe Hose Line Tube 04L121026R

€23.95

Part no. 1J0122291C

Audi A1 8X A3 8P 8V Skoda Octavia Water Coolant Pipe Hose Line 1J0122291C

€23.95

Part no. JB3G-18K580-AD

Ford Ranger Wildtrak Mk6 Water Heater Hose Pipe Line JB3G-18K580-AD

€28.95

Part no. 8K0819350A

Audi RS4 B8 4.2 FSI CFSA Coolant Hose Pipe Line Tube 8K0819350A

€23.95

Part no. LPLA-8260-AD

Range Rover Sport L494 Radiator Water Coolant Hose Pipe 3.0 Diesel LPLA-8260-AD

€94.95

Part no. 1918774

Ford Ranger Mk6 Water Coolant Hose Pipe Line 2.2 TDCI Diesel AB39-18K582-AD

€32.95

Part no. 07K121109A

Audi RS Q3 8U Engine Water Coolant Pipe Hose Line Tube 2.5 TFSI 07K121109A

€70.95

Part no. 2544412

Ford Transit Courier Water Coolant Pipe Hose Line Tube 1.5 TDCI JT76-8B273-DD

€32.95

Part no. 05L122157CP

Audi A5 F5 Engine Coolant Pipe Hose Tube Line 2.0 TDI Diesel 05L122157CP

€37.95

Part no. 04L122157BQ

Audi A5 8T 2.0 TDI CNHA Water Coolant Pipe Line Hose Tube 04L122157BQ

€23.95

Part no. JB3G-8C351-AG

Ford Ranger Wildtrak Mk6 Water Coolant Hose Pipe Line 2.0 Diesel JB3G-8C351-AG

€23.95

Part no. 7530923

BMW E93 Engine Coolant Hose Pipe Line N53B30A 3.0 Petrol Automatic 7530923

€23.95

Part no. A2742000153

Coolant Pipe Mercedes W205 W213 X253 Petrol M274 Water Line A2742000153

€28.95

Part no. 7H0122058C

Volkswagen Transporter Camper T5 Coolant Water Hose Pipe Line 7H0122058C

€23.95

Part no. 059121511G

Audi A5 8T Coolant Pipe Water Hose Cooling Line 2.7 TDI Diesel 059121511G

€23.95

Part no. 7600591

BMW F20 F21 F30 Radiator Coolant Hose Turbo Feed Pipe 7600591

€32.95

Part no. 8J0121447D

Audi TT 8J 2.0 Petrol Engine Coolant Pipe Hose Line Tube 8J0121447D

€23.95

Part no. JB3G-18C266-CG

Ford Ranger Wildtrak Mk6 Water Heater Hose Pipe Line JB3G-18C266-CG

€32.95

Part no. 8W0122101H

Audi A4 B9 2.0 TDI Diesel Coolant Water Hose Line Tube Pipe 8W0122101H

€23.95

Part no. 1826758

Ford Fiesta Mk7 Engine Water Coolant Hose Pipe Petrol 1.6 C1BY-8B274-AB

€23.95

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