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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Water Hoses Volkswagen Tiguan 5N 1.6 TDI Radiator Coolant Pipe Line 5N0121051J

€28.95

Part no. 9X23-8286-BD

Jaguar XF X250 Water Coolant Bottom Hose Pipe Line Tube 3.0 V6 9X23-8286-BD

€23.95

Part no. 8475729

BMW F45 F46 Mini F54 Engine Cooling Radiator Expansion Tank Hose B47 8475729

€28.95

Part no. 8676894

BMW 3 Series F30 LCI 330e B48X Radiator Water Coolant Hose Pipe Return 8676894

€23.95

Part no. 06E131831S

Audi A4 B8 A5 8T A6 C7 A7 4G Engine Water Coolant Hose Pipe 3.0 TFSI 06E131831S

€23.95

Part no. 4M0819927C

Audi Q7 4M Water Coolant Hose Tube Line Pipe 3.0 TDI Diesel Set 4M0819927C

€80.95

Part no. 8V61-18286-KD

Ford C-Max Mk2 Water Coolant Pipe Hose Line 1.6 TDCI 8V61-18286-KD

€23.95

Part no. A2642001001

Mercedes W205 Water Hose Engine Coolant Cooling Pipe Line M264 A2642001001

€32.95

Part no. 1K0121447BG

Volkswagen Golf Mk5 2.0 FSI Petrol Water Coolant Pipe Hose 1K0121447BG

€32.95

Part no. 7591091

BMW F01 F02 F03 F10 F11 Coolant Cooling Pipe Hose Line Petrol Engine 7591091

€23.95

Part no. 7H0815801

Volkswagen Transporter T5 Water Coolant Pipe Hose 2.5 TDI 7H0815801

€28.95

Part no. A9065010482

Coolant Hose Mercedes Sprinter W906 Diesel OM642 Radiator Water Line A9065010482

€37.95

Part no. 6927808

BMW 5 6 Series E60 E61N M5 E63 E64 M6 Hose From Water Valve and Radiator 6927808

€23.95

Part no. 1K0122101KS

Audi A3 8P 2.0 TFSI Petrol Engine Radiator Coolant Hose Line Pipe 1K0122101KS

€23.95

Part no. A2125019882

Mercedes W212 OM651 Water Pipe Engine Cooling Coolant Hose Line A2125019882

€23.95

Part no. 6939213

BMW Z4 Series E85 Roadster Cabrio Hose From Radiator From Additional Water Pump

€23.95

Part no. A9078300102

Mercedes Sprinter W907 Water Coolant Pipe Hose Cooling Line A9078300102

€32.95

Part no. 7541062

BMW Z4 E85 Roadster Cabrio Radiator Cooling Coolant Water Hose 7541062

€32.95

Part no. 7270982

BMW 3 4 Series F30 F31 F32 F33 Radiator Coolant Vent Pipe Hose Petrol 7270982

€23.95

Part no. 4G0122293BF

Audi A6 RS6 C7 Radiator Coolant Hose Adapter Rear Left N/S 4G0122293BF

€80.95

Part no. L8D2-8D198-AB

Land Rover Discovery Sport L550 Coolant Water Hose Pipe 1.5 L8D2-8D198-AB

€23.95

Part no. JHB501670

Land Rover Discovery 4 L319 2.7 V6 Lion Water Coolant Pipe Hose Line JHB501670

€42.95

Part no. 7591092

BMW F01 F02 F03 F10 F11 Coolant Cooling Pipe Hose Line Petrol Engine 7591092

€23.95

Part no. A2055016100

Mercedes W205 Water Hose Radiator Coolant Cooling Pipe Line Petrol A2055016100

€23.95

Part no. 8K0819334E

Audi A4 B8 Heat Exchanger Heater Pipe Hose Line 2.0 TDI 8K0819334E

€113.95

Part no. 9P1121465

Porsche 718 Boxster 982 Coolant Overflow Line Hose Pipe Left N/S 9P1121465

€70.95

Part no. A6402032282

Mercedes W169 W245 Heater Radiator Water Cooling Hose Diesel A6402032282

€23.95

Part no. A6512030902

Mercedes W447 OM651 Diesel Water Coolant Pipe Hose Line A6512030902

€37.95

Part no. 94810605001

Porsche Cayenne 9PA Engine Water Coolant Pipe Tube Hose 4.5 Petrol 94810605001

€23.95

Part no. 6C0122101T

Audi A1 8X Volkswagen Polo 6C Engine Water Coolant Pipe Hose 1.0 TFSI 6C0122101T

€32.95

Part no. 8K0121052C

Audi A4 S4 B8 A5 8T Engine Water Coolant Pipe Hose Tube Line 8K0121052C

€23.95

Part no. 059121445L

Audi A6 C8 Engine Cooling Coolant Water Hose Line Pipe Tube 059121445L

€23.95

Part no. 7591097

BMW F01 F02 F03 Expansion Tank Coolant Pipe Hose Line N74 Petrol 7591097

€23.95

Part no. 5Q0122063

Audi A3 8V Water Coolant Pipe Radiator Hose Fluid Line 1.4 TSI Petrol 5Q0122063

€23.95

Part no. 03L121065T

Audi A3 8P 2.0 TDI Hose Thermostat Coolant Pipe Line 03L121065T

€23.95

Part no. 83A816738

Audi Q3 RSQ3 F3 Petrol Hose Air Con A/C Intercooler Pipe Line 83A816738

€56.95

Part no. 059121103H

Audi SQ5 8R 3.0 TDI CGQB Coolant Hose Line Tube Pipe 059121103H

€23.95

Part no. AH22-8B273-AA-1

Land Rover Discovery 4 L319 Thermostat Coolant Hose Pipe AH22-8B273-AA

€23.95

Part no. 2754224

BMW Mini Cooper R55 R56 R57 Cooling System Coolant Radiator Water Hose 2754224

€28.95

Part no. M8D2-5H209-AA

Range Rover Evoque L551 EGR Pressure Sensor Hose Line Pipe Set WAP500380

€23.95

Part no. A2742003782-1

Mercedes W205 Water Hose Engine Cooling Coolant Pipe Line A2742003782

€32.95

Part no. 9802831-2

Mini R60 R61 Diesel Engine Inlet Heater Radiator Water Hose Part 9802831

€23.95

Part no. 9485277

Coolant Pipe BMW G30 G31 G38 LCI B48X Hybrid Water Hose Line 9485277

€80.95

Part no. 9P1317233-1

Porsche 718 Boxster 982 Water Coolant Heater Valve Pipe Hose 2.0T 9P1317233

€113.95

Part no. BH42-8D010-AC

Land Rover Range Rover L322 Coolant Hose Pipe 4.4 TDV8 Diesel BH42-8D010-AC

€32.95

Part no. 8616559

BMW F20 F22 F30 F32 LCI F36 Coolant Hose Pipe B48 B58 Petrol 8616559

€51.95

Part no. KV61-8B274-VB

Ford Transit Connect Mk2 Water Coolant Hose Pipe 1.5 Diesel KV61-8B274-VB

€23.95

Part no. PEL500380

Land Rover Discovery 3 L319 2.7 Diesel Water Coolant Pipe Hose Line PEL500380

€28.95

Part no. A2055000900

Mercedes W205 Water Pipe Engine Cooling Coolant Hose Line OM651 A2055000900

€28.95

Part no. 2284288-2

Coolant Hose BMW F10 M5 F12 F13 M6 Water Cooling Pipe Radiator 2284288

€108.95

Part no. 7555633

BMW 3 Series F30 LCI 330e B48X Radiator Water Coolant Hose Line Pipe 7555633

€23.95

Part no. 7811780

BMW Mini Cooper R55 R56 R57 LCI R58 R59 N47N Water Pipe Coolant Hose 7811780

€23.95

Part no. 7796871

BMW X1 E81 E87 E90 E91 N47 Cooling Radiator Water Pipe Hose 7797259

€23.95

Part no. A2742003782-2

Mercedes W205 Water Hose Engine Cooling Coolant Pipe Line A2742003782

€37.95

Part no. 9222701

BMW 3 Series E90 E91 LCI E92 E93 N57 Diesel Coolant Hose Pipe Line Tube 9222701

€23.95

Part no. A2055011600

Mercedes W205 Water Hose Radiator Coolant Cooling Pipe Line Petrol A2055011600

€23.95

Part no. A2515002875

Mercedes W251 V251 Engine Coolant Hose Tube Line Pipe M642 A2515002875

€23.95

Part no. L8D2-8D336-AC

Land Rover Discovery Sport L550 Coolant Hose Pipe Line 1.5 PHEV L8D2-8D336-AC

€23.95

Part no. 2K0122157AH

Volkswagen Caddy C20 2K Maxi 2K Engine Coolant Hose Tube Line Pipe 2K0122157AH

€23.95

Part no. 7C0121487E

VW Volkswagen Crafter SY Water Hose Cooling Coolant Pipe Line 2.0 TDI 7C0121487E

€23.95

Part no. 059121511CK

Audi A6 C8 Auxiliary Water Pump Engine Coolant Hose Line Pipe Tube 059121511CK

€94.95

Part no. 03P121157A

Volkswagen Polo 5 Seat Ibiza 6J Coolant Radiator Hose 1.2 TDI CFWA 03P121157A

€23.95

Part no. 3Q0121058C

Audi Q3 F3 Water Hose Cooling Radiator Coolant Pipe Line 2.0 TDI 3Q0121058C

€23.95

Part no. A2822030082

Water Hose Mercedes C118 W177 W247 M282 Engine Coolant Pipe Line A2822030082

€32.95

Part no. 8K0121081BB

Audi A4 S4 B8 A5 8F Radiator Coolant Tank Hose Pipe Line Tube 8K0121081BB

€23.95

Part no. 1375346

Ford Kuga C394 Radiator Hose Cooling Pipe 6M5Y-8260-AB

€28.95

Part no. 8N0121088

Audi A3 8L TT TTS 8N Engine Coolant Water Hose Pipe Tube Line 8N0121088

€66.95

Part no. 7588936

Cooling Line Hose BMW F10 F11 F30 F31 N20 Engine Coolant Return Pipe 7588936

€23.95

Part no. 7636409

Coolant Pipe BMW i3 I01 Rex Hybrid Radiator Cooler Water Hose Line 7636409

€23.95

Part no. A1322030402

Smart Fortwo 451 Coolant Feed Line Front Inlet Expansion Tank Hose A1322030402

€23.95

Part no. 9485281

Coolant Pipe BMW G30 G31 G38 LCI B48X Hybrid Radiator Water Hose Line 9485281

€80.95

Part no. 5A60782

Mini F65 F66 BMW F74 Crankcase Ventilation Scavenge Air Line Pipe 5A60782

€32.95

Part no. A6512031782

Water Hose Mercedes W176 W246 OM651 Water Coolant Pump Pipe Line A6512031782

€23.95

Part no. BK3Q-8K512-BC

Ford Transit Mk7 2.4L Duratorq-TD Radiator Water Coolant Pipe Hose BK3Q-8K512-BC

€23.95

Part no. 1764346

Ford Mondeo Mk4 Engine Coolant Hose Tube Line Pipe 1.6 TDCi BG91-8274-JA

€23.95

Part no. 2773653

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

€23.95

Part no. 9368333

BMW 3 F30 LCI 330e B48X Hybrid Air Conditioning Coolant Pipe Tube 9368333

€28.95

Part no. 1K0121070BD

Audi TT 8J Water Hose Cooling Tank Coolant Pipe Line 1K0121070BD

€28.95

Part no. 9247858

Coolant Hose BMW F10 M5 F12 F13 M6 S63N Water Cooling Pipe Radiator 9247858

€23.95

Part no. 1K0121096BQ

Volkswagen Golf Mk6 Water Hose Cooling Radiator Coolant Pipe Line 1K0121096BQ

€23.95

Part no. A2742000082

Mercedes W204 Engine Coolant Hose Tube Line Pipe A2742000082

€23.95

Part no. 9314673

BMW G30 G11 G12 Coolant Hose Radiator Feed Line Pipe Hybrid 2.0 Petrol 9314673

€28.95

Part no. 8J0121123

Audi RSQ3 8U Engine Water Coolant Pipe Hose Line 2.5 TFSI 8J0121123

€51.95

Part no. 8R0819334AP

Audi Q5 8R Water Coolant Pipe Hose Line Tube 8R0819334AP

€23.95

Part no. A1724603824

Mercedes R172 Power Steering Radiator Cooling Hose Pipe Line A1724603824

€23.95

Part no. 6C11-18K579-AG

Ford Transit Mk7 2.4 TDCi Water Hose Heat Exchanger Coolant Line 6C11-18K579-AG

€23.95

Part no. 2754423

Mini R55 R56 Water Coolant Hose Radiator Pipe Line W16 Diesel 2754423

€23.95

Part no. A2535015301

Mercedes GLC X253 Hybrid Battery Coolant Pipe Hose Line A2535015301

€32.95

Part no. 8W0121400B-2

Audi A4 B9 A5 F5 Gearbox Oil Coolant Hose Pipe Line Tube 8W0121400B

€32.95

Part no. JB3G-58271-AE

Ford Ranger Wildtrak Mk6 Water Coolant Pipe Hose Line 2.0 Diesel JB3G-58271-AE

€23.95

Part no. 4K0819552C

Audi A6 C8 Coolant Hose Water Line Pipe Tube 4K0819552C

€23.95

Part no. 95510607100

Porsche Cayenne 9PA 92A Water Coolant Pipe Hose Tube Line 95510607100

€75.95

Part no. 8673992

BMW 3 Series F30 LCI 330e B48X Radiator Coolant Feed Line Hose Pipe 8673992

€94.95

Part no. 8K0819374Q

Audi A5 8T Water Hose Cooling Radiator Coolant Pipe Line 8K0819374Q

€32.95

Part no. 8475682

BMW i4 G26 Water Hose Radiator Coolant Cooling Tube Pipe Line 8475682

€70.95

Part no. 3424499

BMW X3 Series E83N LCI Radiator Bottom Coolant Water Hose 3424499

€23.95

Part no. 1724201

Ford Focus Mk3 Engine Coolant Radiator Hose Tube Line Pipe 8V61-8260-BC

€23.95

Part no. 8U0121036

Audi RS Q3 8U Engine Coolant Hose Pipe Hose Tube Line 8U0121036

€28.95

Part no. 1K0122101DK-2

Audi A3 S3 TT 8J CDLA Upper Radiator Coolant Hose Line Pipe Tube 1K0122101DK

€37.95

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