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 C117 W176 AMG Water Coolant Pipe Hose Line M133 A1330106800

€42.95

Part no. 7605432

BMW F01 LCI F12 F13 Coolant Hose Petrol N55 Thermostat Inlet Pipe 7605432

€28.95

Part no. 1K0122447GC

Skoda Octavia RS 1Z 1.8 BZB Petrol Engine Coolant Hose Line Tube 1K0122447GC

€23.95

Part no. 4K0122101AT

Audi A6 C8 Water Pipe Hose Line Cooling Coolant 4K0122101AT

€23.95

Part no. 1J0122051H

VW Volkswagen Golf Mk3 Radiator Coolant Hose Pipe Line Tube 1J0122051H

€23.95

Part no. 9230749

BMW Mini Cooper R55 R56 R57 LCI R58 R59 N47N Water Pipe Coolant Hose 9230749

€23.95

Part no. 7572158

BMW E46 E87 E90 E91 Petrol N42 N45 N46 Cooling System Radiator Water Hose Pipe

€23.95

Part no. A6542032801

Coolant Hose Mercedes W177 C118 W247 Diesel OM654 Water Line A6542032801

€42.95

Part no. 5A30C15

BMW X1 U11 Water Coolant Feed Line Radiator Pump Hose Line B38X 5A30C15

€23.95

Part no. A2134300229

Mercedes W253 W213 C238 Coolant Hose Line Tube Pipe A2134300229

€42.95

Part no. BK3Q8K512BB

Ford Transit Engine Water Coolant Pipe Cooling Hose Line BK3Q8K512BB

€23.95

Part no. LR001264

Land Rover Freelander 2 L359 Engine Breather Pipe Hose 2.2 Diesel 6G9Q-6A664-BA

€23.95

Part no. PIH500101

Land Rover Discovery 3 L319 Water Coolant Pipe Hose Line 2.7 PIH500101

€51.95

Part no. JHB501670-1

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

€51.95

Part no. LK62-4090-AC

Land Rover Discovery Sport L550 Vacuum Pipe Hose Line 2.2 Diesel LK62-4090-AC

€104.95

Part no. 7515486-1

BMW Mini Cooper One R50 W10 Coolant Water Hose Pipe Expention Tank 7515486

€23.95

Part no. 5A0C5A6

BMW F70 F74 U06 U10 U11 U12 Mini F65 F66 Coolant Hose Pipe Tube Line 5A0C5A6

€37.95

Part no. 7P5422881M

Porsche Cayenne S 92a Coolant Pipe Hose Tube Line 7P5422881M

€28.95

Part no. 7605150

BMW F01 LCI F06 F12 F13 N55 Water Coolant Pipe Hose Line 7605150

€37.95

Part no. 9V61-8286-CC

Ford Kuga C520 Engine Coolant Pipe Hose Tube Line 2.0 TDCi Diesel 9V61-8286-CC

€23.95

Part no. PZ31-180476-PAC

Ford Transit Custom Water Coolant Hose Pipe 2.0 Diesel PZ31-180476-PAC

€42.95

Part no. 06L121497D

Audi A5 8T A4 B8 Water Coolant Pipe Hose Turbocharger 2.0 TFSI 06L121497D

€47.95

Part no. 5N0122101BB

VW Volkswagen Tiguan Mk1 2.0 TDI Water Coolant Pipe Hose 5N0122101BB

€23.95

Part no. 7L8121070BG

Audi Q7 4L Water Coolant Pipe Hose Line 3.0 TDI 7L8121070BG

€28.95

Part no. 2517705

Ford Transit Custom Engine Cooling Radiator Coolant Pipe Hose GK2Q-8A589-AC

€42.95

Part no. 8514442

BMW X3 F25 B47 Diesel Coolant Pump Water Hose Electric Changeover Valve 8514442

€23.95

Part no. QEH500443

Land Rover Discovery 3 L319 Water Coolant Pipe Hose Line 2.7 QEH500443

€23.95

Part no. 059121064N

Audi A6 C8 Q5 FY Q7 4M Water Hose Coolant Pipe Line 3.0 TDI 059121064N

€32.95

Part no. 06E121045AS

Audi A4 S4 B8 S5 8T Water Hose Radiator Coolant Pipe Line 3.0 TFSI 06E121045AS

€61.95

Part no. 7E0121101B-1

Volkswagen Transporter T5 Coolant Hoses Water Cooling Pipe 2.0 TDI 7E0121101B

€23.95

Part no. 059122471AB

Audi Q7 4M Q8 Mk1 Engine Coolant Hose Line Tube Pipe Set 3.0 Diesel 059122471AB

€94.95

Part no. CPLA-9P924-CB

Land Range Rover L494 Vogue L405 Water Coolant Pipe Hose Line CPLA-9P924-CB

€23.95

Part no. 4K0819374Q

Audi A6 C8 Engine Coolant Pipe Water Hose Cooling Line Tube 4K0819374Q

€23.95

Part no. GJ32-8286-BB

Land Rover Discovery Sport L550 Coolant Hose Pipe Line GJ32-8286-BB

€23.95

Part no. LR076780

Land Rover Discovery Sport L550 Water Coolant Hose Pipe Tube Line G4D3-8A512-CB

€80.95

Part no. 6C11-8W005-FB

Ford Transit Mk7 Water Hose Engine Cooling Radiator Coolant Pipe 6C11-8W005-FB

€28.95

Part no. A2722030182

Mercedes W204 W212 Coolant Cooling Hose Pipe Line M272 Engine A2722030182

€28.95

Part no. 7N0820721

Volkswagen Sharan 7N A/C Air Con Refrigerant Hose Pipe Line 7N0820721

€28.95

Part no. 8514437

Water Hose BMW F20 F30 F31 F10 F11 LCI B47 EGR Cooler Coolant Pipe Line 8514437

€23.95

Part no. 98710627002

Porsche Cayman 987 Coolant Hose Feed Pipe Line Tube 98710627002

€23.95

Part no. 06N121075C

Audi A4 B9 A5 F5 A6 A7 C8 A8 D5 Q5 F8 Radiator Water Hose Pipe Line 06N121075C

€47.95

Part no. A2762001051

Mercedes W212 M276 Petrol Coolant Water Pipe Hose Line Tube A2762001051

€47.95

Part no. K8D2-8286-AB

Land Rover Discovery Sport L550 Coolant Hose Thermostat Line Pipe K8D2-8286-AB

€42.95

Part no. 99610622215

Porsche Cayman 987C Coolant Hose Return Pipe Line 99610622215

€23.95

Part no. 7599450

BMW E90 LCI E91 LCI E92 LCI Radiator Water Cooling Hose Pipe Tube Line 7599450

€32.95

Part no. 04L121131AB-1

VW Tiguan 5N Coolant Water Flange Housing Connector 2.0 TDI 04L121131AB

€23.95

Part no. A2468304900-1

Water Coolant Hose Mercedes W176 Diesel Water Pump Pipe Line A2468304900

€37.95

Part no. A1668304096

Hose Mercedes W166 M276 Coolant Heater Hose Heating Water Line A1668304096

€23.95

Part no. 5A30C14

BMW U06 X1 U11 Water Coolant Feed Line Radiator B38X 5A30C14

€23.95

Part no. 8654850

BMW G20 G21 Charger Electronics Coolant Circuit Hose Tube Line Pipe 8654850

€23.95

Part no. 03L201360G

Volkswagen Tiguan 5N Fuel Injection Line Pressure Pipe Rail Injector 03L201360G

€23.95

Part no. 1K0122101AF

Audi A3 8P Engine Coolant Hose Pipe Tube Line 2.0 Petrol AXW 1K0122101AF

€23.95

Part no. 7509984

BMW F10 F11 X5 F15 X6 F16 Radiator Coolant Water Hose Pipe Line 7509984

€28.95

Part no. 9236675

Coolant Hose BMW X3 F25 X4 F26 Diesel Heater Water Return Pipe Line 9236675

€23.95

Part no. 7531581

Thermostat Coolant Pipe BMW E87 E90 E91 Hose Radiator Bottom 7531581

€23.95

Part no. 03G121473

Audi A4 S4 Avant 8E Water Coolant Pipe Hose 2.0 Diesel Engine Vent 03G121473

€23.95

Part no. 5A0C594

BMW X1 U11 Electric Pump Coolant Hose Line Pipe 5A0C594

€28.95

Part no. JB3G-8B274-AG

Ford Ranger T6 Engine Coolant Hose Pipe Line 2.0 Bi-Turbo Diesel JB3G-8B274-AG

€23.95

Part no. 8W0122055BN-2

Audi A4 B9 A5 F5 Coolant Pipe Radiator Hose Line Tube 2.0 Petrol 8W0122055BN

€23.95

Part no. 4M0819927CP

Audi Q7 4M Water Coolant Hose Tube Line Pipe 3.0 TDI Diesel Set 4M0819927CP

€56.95

Part no. 059121512N

Audi A6 4G Q5 8R 2.0 TDI Diesel Water Hose Line Tube Pipe 1K0121096R 059121512N

€23.95

Part no. A2535015101

Mercedes X253 Water Hose Radiator Coolant Cooling Pipe Line A2535015101

€28.95

Part no. LR024243

Range Rover Evoque L538 Water Pipe Coolant Hose Line 2.2 TDCI BJ32-8274-AA

€23.95

Part no. 06L121075A

Audi A5 8T A4 B8 Engine Coolant Pipe Hose Line Tube 06L121075A

€37.95

Part no. HPLA-8286-DA

Range Rover Evoque L538 Radiator Coolant Hose Pipe Line 3.0 Diesel HPLA-8286-DA

€23.95

Part no. 8841814

BMW U06 Active Tourer X1 U11 Coolant Water Hose Pipe Line B38X Engine 8841814

€23.95

Part no. 03C121050G

Audi A3 8P Volkswagen Golf Mk 7 Heater Water Cooling Pipe Hose Line 03C121050G

€23.95

Part no. 5251183

Ford Ranger Mk6 Expansion Tank Coolant Pipe Hose Line 2.2 TDCI AB39-8W005-AD

€23.95

Part no. 3C0121087A

Volkswagen Passat B7 Radiator Coolant Hose Pipe 2.0 TDI 3C0121087A

€23.95

Part no. 8E0121101C

Audi A4 B7 1.9 TDI Water Pipe Engine Cooling Radiator Coolant Hose 8E0121101C

€23.95

Part no. 6R0122101DD-1

Coolant Hose VW Polo 6R Seat Ibiza 6J 1.2 TSI CBZB Radiator Line 6R0122101DD

€28.95

Part no. 6Y0122073B

Volkswagen Polo 9N Mk4 Coolant Return Hose Pipe 1.2 Petrol 6Y0122073B

€23.95

Part no. 1929874

Ford Kuga C520 Engine Water Hose Tube Pipe 1.5 Petrol Ecoboost F1F1-6B851-DE

€23.95

Part no. 8K0145673AM

Audi A5 8T 2.0 CNCD Petrol Intercooler Pipe Hose Line Tube 8K0145673AM

€47.95

Part no. 3413819

BMW X3 SERIES E83 Water Engine Radiator Return Hose Pipe 3413819

€23.95

Part no. 7532063

BMW 1 SERIES E81 E87 Petrol Heater return engine cooling water hose pipe 7532063

€23.95

Part no. 06H121057G

Audi A4 B8 A5 8T Water Hose Cooling Coolant Radiator Pipe Line 06H121057G

€23.95

Part no. 1K0122101DK-1

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

€32.95

Part no. A2055011500

Mercedes W205 Water Hose Radiator Coolant Cooling Pipe Line A2055011500

€75.95

Part no. 7541146

BMW E65 E66 740i 750i Radiator Coolant Ventilation Vent Pipe Hose 7541146

€28.95

Part no. 7507149

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

€42.95

Part no. 8W2819350L

Audi A4 S4 B9 A5 F5 Engine Water Coolant Hose Pipe Line 2.0 TFSI 8W2819350L

€23.95

Part no. 99610622554

Porsche Boxster 986 Engine Coolant Water Pipe Breather Hose Left N/S 99610622554

€32.95

Part no. A2055013482

Mercedes C205 OM651 Diesel Water Coolant Hose Pipe Line Tube A2055013482

€28.95

Part no. A2048307296

Mercedes W204 Water Line Coolant Hose Ruber Pipe A2048307296

€23.95

Part no. 7P0819926B

VW Volkswagen Touareg 7P 3.0 TDI Coolant Water Pipe Hose Line 7P0819926B

€23.95

Part no. 04L122157CC

Audi A4 B9 2.0 TDI Diesel Engine Coolant Hose Line Pipe Tube 04L122157CC

€28.95

Part no. A2702031782

Water Pipe Mercedes C117 W176 W246 M270 Coolant Hose Line A2702031782

€23.95

Part no. 7524335

BMW 1 Series E81 E87 E87N Petrol N45 N46 Oil Gearbox Cooling Pipe Hose 7524335

€23.95

Part no. A2722000054

Mercedes C218 C218 W221 Water Coolant Control Valve M273 A2722000054

€23.95

Part no. 07K121057A

Coolant Hose Audi RS3 8V TTRS 8S 2.5 TFSI Cooling Pipe Line 07K121057A

€23.95

Part no. A1635010182

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

€23.95

Part no. 5Q0121619A

Audi A3 8V TT FV VW Golf Mk7 Water Coolant Connector Flange Diesel 5Q0121619A

€23.95

Part no. 6R0122447K-1

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

€23.95

Part no. 99710662103

Porsche Cayman 987C Engine Coolant Hose Tube Line Pipe Feed Left N/S 99710662103

€23.95

Part no. 55213798

Fiat Doblo 1.6 Diesel JTD Multijet Engine Water Coolant Pipe Hose Line 55213798

€23.95

Part no. 8478420

BMW F74 Gran Coupé Electric Coolant Pump Line Hose Tube B38A15P 8478420

€80.95

Part no. A6542030001

Mercedes W205 W213 OM654 Oil Cooler Pipe Hose Line A6542030001

€23.95

Part no. 07L121481H

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

€66.95

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