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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Cooling Hose BMW E84 N20 Petrol Engine Radiator Water Coolant Pipe Line 7612445

€23.95

Part no. A6395017982

Mercedes W639 Water Hose Coolant Expansion Tank Pipe Line A6395017982

€23.95

Part no. 7592650

Water Hose BMW F10 F11 F12 F13 N63 Petrol Cooling Coolant Pipe Line 7592650

€23.95

Part no. 8511761

Coolant Hose BMW F01 LCI F10 X3 F25 Radiator Water Cooling Pipe Diesel 8511761

€23.95

Part no. 7640014

Mini MINI F54 F56 F57 F60 BW F39 F48 Heat Exchanger Coolant Pipe Hose 7640014

€23.95

Part no. 1692736

Ford Fiesta Mk7 Focus ST180 Engine Coolant Hose 1.6 EcoBoost BM5G-8A582-DA

€23.95

Part no. A1725011125

Mercedes SLK R172 Breather Hose Expansion Tank Bleed Petrol M271 A1725011125

€23.95

Part no. 06F121057C

Audi A1 8X S3 8P VW Golf R Mk5 Water Coolant Pipe Hose Line 2.0 TSI 06F121057C

€47.95

Part no. 9355235

BMW X5 F15 Engine Coolant Hose Heat Exchanger Return Pipe 9355235

€23.95

Part no. 9398957

BMW G20 G21 Water Cooling Coolant Hose Pipe Tube Line Hybrid B46X B48X 9398957

€23.95

Part no. PCH001220

Land Rover L322 Upper Coolant Hose Pipe Line PCH001220

€32.95

Part no. 9208169

BMW F20 F21 F30 F31 F32 Petrol N20 Heater Radiator Coolant Pipe Hose 9208169

€23.95

Part no. 5QF122157AJ

Audi Q3 F3 Engine Coolant Hose Line Tube 2.0 TDI 5QF122157AJ

€23.95

Part no. 5N0122101AT

Audi Q3 8U 2.0 TDI DFTA Engine Radiator Upper Water Coolant Hose 5N0122101AT

€28.95

Part no. A6461400208

Mercedes-Benz Vito Viano W639 OM646 EGR Exhaust Gas Cooling Pipe A6461400208

€23.95

Part no. A2602004400

Mercedes W177 Heater Radiator Coolant Pipe Hose A2602004400

€66.95

Part no. 7P5122447F

Porsche Cayenne 92A Water Breather Pipe Hose Cooling Tube 7P5122447F

€28.95

Part no. 7N0819350B

Volkswagen VW Sharan 7N Water Hose Radiator Coolant Pipe Line 2.0 TDI 7N0819350B

€75.95

Part no. 6R0129637E

Audi A1 8X Air Filter Box Pipe Pipe Line Hose 1.6 TDI CAYC 6R0129637E

€23.95

Part no. 7LA121086D

Volkswagen Transporter T6 Water Coolant Pipe Hose Line 2.0 TDI 7LA121086D

€42.95

Part no. LR074126

Range Rover Evoque L538 EGR Cooling System Coolant Hose Pipe Line LR074126

€23.95

Part no. 7591089

BMW F01 F02 F03 Rolls-Royce Ghost RR4 N74 V12 Coolant Water Pipe Hose 7591089

€23.95

Part no. 7595611

BMW F01 F01 LCI F02 F02 LCI F03 F03 LCI Coolant Hose Tube Pipe Line 7595611

€146.95

Part no. 06Q121085B

VW Golf Mk8 Skoda Octavia Mk4 Audi S3 8Y 2.0 TSI Water Coolant Hose 06Q121085B

€32.95

Part no. 06J103221-1

Audi TT 8J 1.8 TFSI Tank Breather Ventilation Pipe Line 06J103221

€23.95

Part no. 7L0819857C

Audi Q7 4L Coolant Pipe Hose Line Duct Tube 3.0 TDI 7L0819857C

€23.95

Part no. 8J0121109E

Audi TT Mk2 8J Water Coolant Pipe Hose 1.8 2.0 TFSI CDAA CESA Petrol 8J0121109E

€23.95

Part no. 059121399K

Audi SQ5 8R 3.0 TDI Diesel Coolant Hose Line Tube Pipe 059121399K

€23.95

Part no. A1725012382

Mercedes SLK R172 M271 M276 Coolant Hose Cooler Water Line A1725012382

€32.95

Part no. 9299629

BMW G30 G11 G12 Coolant Hose Radiator Pipe Line Feed 2.0 Hybrid 9299629

€23.95

Part no. 7952798

Coolant Pipe BMW G30 530e LCI B48X Cooling Water Hose Line 7952798

€56.95

Part no. LR087237-1

Range Rover Evoque L538 EGR Coolant Pipe Outlet Hose Line LR087237

€23.95

Part no. 03L121157AD

Audi A4 B8 A5 8T Coolant Pipe Hose 2.0 TDi Diesel EGR 03L121157AD

€23.95

Part no. A4475014500

Mercedes W447 Radiator Coolant Hose Cooling Pipe Bleed Line A4475014500

€23.95

Part no. 7LA121096S

VW Volkswagen Transporter T6 Water Coolant Hose Pipe Line 2.0 TDI 7LA121096S

€42.95

Part no. 4G0122293CA

Audi A4 B8 A6 C7 2.0 TDI Water Coolant Pipe Hose Line Tube 4G0122293CA

€23.95

Part no. 04L122157BA

Audi A5 8T Heater Water Cooling Coolant Pipe Hose Line 04L122157BA

€23.95

Part no. 1K0121447S

Volkswagen VW Passat B6 Water Hose Radiator Coolant Pipe Line 1K0121447S

€23.95

Part no. 06J121075B

Audi A3 8P VW Scirocco Mk3 Coolant Hose Water Pipe Line Tube Petrol 06J121075B

€32.95

Part no. 4R83-8C012-A

Jaguar Xf X250 Coolant Hose Return Pipe Line 4R83-8C012-A

€23.95

Part no. LR071993

Land Rover Discovery L550 Water Pipe Coolant Hose Line 2.0 Diesel GJ32-8B160-AA

€23.95

Part no. 7603511

Water Hose BMW F20 F30 F31 F32 N20 Engine Coolant Radiator Pipe Line 7603511

€23.95

Part no. 8W0819337

Audi A4 A5 S5 F5 Engine Coolant Hose Pipe Line Tube 8W0819337

€23.95

Part no. 2754247-1

Mini Cooper One R55 R56 R57 R58 Engine Water Coolant Hose Pipe 2754247

€23.95

Part no. 9169918

BMW F01 F10 F11 F13 Return Hose Coolant Cooling Pipe Auxiliary Heater 9169918

€23.95

Part no. A1725012082

Mercedes SLK R172 Petrol OM271 Coolant Radiator Hose Line Right O/S A1725012082

€32.95

Part no. 7E0122051E-2

VW Volkswagen Transporter T5 Radiator Coolant Hose Water Pipe Line 7E0122051E

€23.95

Part no. 7591095

BMW F01 F02 F03 Water Coolant Cooling Pipe Hose Line N74 Petrol Engine 7591095

€56.95

Part no. 7591094

BMW F01 F01 LCI F02 F02 LCI F03 F03 LCI Coolant Hose Tube Pipe Line 17127591094

€23.95

Part no. 8K0145923F

Audi A4 S4 B8 S5 8T Radiator Coolant Hose Tube Pipe Line 8K0145923F

€23.95

Part no. A2602000400

Mercedes W177 A35 AMG M260 Coolant Hose Water Pump Pipe Line A2602000400

€23.95

Part no. 7803608

BMW 1 X1 Series E81 E84 E87 LCI N47S Engine Exhaust Manifold Return Pipe

€23.95

Part no. 2501590

Ford Transit Connect Water Hose Cooling Coolant Pipe Line BK21-18K580-BC

€32.95

Part no. A2742032302

Mercedes W212 Petrol OM274 Coolant Pipe EGR Cooler Line A2742032302

€23.95

Part no. 1K0121051T

Volkswagen Eos Audi A3 8P Coolant Water Pipe Hose Line Tube 1K0122051AP

€23.95

Part no. 9299627

BMW G11 G12 G30 G31 Engine Coolant Water Hose Pipe Line 2.0 9299627

€23.95

Part no. A1728301396

Mercedes SLK R172 OM651 Engine Water Coolant Pipe Cooling Hose Line A1728301396

€23.95

Part no. 8654845

BMW G20 G21 Coolant Water Hose Pipe Cooling Line 2.0 PHEV Hybrid 8654845

€28.95

Part no. 8654846

BMW G20 G21 Water Coolant Pipe Hose Line B46X B48X 8654846

€23.95

Part no. YC1Q8N039AB

Ford Transit MK6 2.4 Diesel Water Hose Coolant Cooling Pipe Line YC1Q8N039AB

€23.95

Part no. 06F145317E

Skoda Octavia RS 1Z Audi TT 8N BWA Petrol Engine Water Coolant Line 06F145317E

€23.95

Part no. 7L5122073A

Porsche Cayenne 9PA Engine Coolant Hose Water Pipe Line 4.5 V8 7L5122073A

€28.95

Part no. 1870817-1

Ford Fiesta 1.25 Engine Water Cooling Coolant Hose Pipe 1.25 SNJA 8V21-8C351-DB

€23.95

Part no. LR021657

Land Rover Discovery 4 L319 Coolant Hose Line Pipe Set AH22-18B402-AB

€23.95

Part no. 3R0121071B

Seat Exeo 3R Water Hose Radiator Coolant Pipe Line 2.0 TDI 3R0121071B

€51.95

Part no. 72344265

BMW F30 Coolant Hose Radiator Cooling Water Pipe Line 72344265

€37.95

Part no. 4K2819377E-2

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

€28.95

Part no. 7541094

Mini Cooper S R52 R53 Petrol W11 Radiator Coolant Hose Pipe Automatic 7541094

€23.95

Part no. 7500752

BMW X5 Series E53 M62 PETROL Cooling System Water Hose Pipe 7500752

€23.95

Part no. 8645545

Coolant Pipe Mini F54 F56 F60 BMW F45 F46 F48 B38 Cooling Hose Water 8645545

€28.95

Part no. 4378817

Ford Transit Connect Water Coolant Hose Pipe Line 1.8 TDCi 2T14-8B274-BC

€23.95

Part no. 7L6122291AC

Porsche Cayenne 92A Coolant Hose Water Pipe Line 7L6122291AC 7P6122051G

€37.95

Part no. LR125617

Range Rover Sport L494 Coolant Hose Pipe Line Connector K6D3-8K588-AB

€23.95

Part no. 03C121070B

Audi A3 8P Water Pipe Hose Line Engine Cooling Coolant Unit Hose 03C121070B

€23.95

Part no. 8571346

BMW X3 F25 X4 F26 Coolant Hose Diesel Radiator Water Pipe Line N57N N57Z 8571346

€32.95

Part no. 95510605100

Porsche Cayenne 9PA Water Coolant Hose Pipe Line 95510605100

€28.95

Part no. 2216435

Ford Ranger Wildtrak Mk6 Coolant Overflow Hose 2.0 EcoBlue Diesel JB3G-8W005-A

€23.95

Part no. 4G0819350B

Audi A6 C7 A7 4G8 Water Radiator Coolant Pipe Hose Tube Line Petrol 4G0121485T

€23.95

Part no. 7639026

Cooling Hose BMW E84 N20 Petrol Engine Radiator Water Coolant Pipe Line 7639026

€23.95

Part no. K8D2-18C266-BA

Land Rover Discovery Sport L550 Evoque L551 Coolant Water Pipe Hose K8D218C266BA

€23.95

Part no. 7611149

BMW F01 F01 LCI F02 F02 LCI F03 F03 LCI Coolant Hose Tube Line Pipe 17127611149

€23.95

Part no. 2E0121096

VW Volkswagen Crafter 2E 2.0 Diesel Water Coolant Pipe Line Tube Hose 2E0121096

€23.95

Part no. 8654869

BMW G20 G21 Coolant Radiator Feed Hose Pipe Line B46X B48X Engine 8654869

€23.95

Part no. 8U0121056

Audi RS Q3 8U Radiator Coolant Hose Pipe Line 8U0121056

€28.95

Part no. A2055010782

Mercedes W205 Water Radiator Pipe Hose Coolant Cooling Line A2055010782

€32.95

Part no. A1725011225

Mercedes R172 Water Coolant Pipe Hose Line 250CDI BlueEfficiency A1725011225

€23.95

Part no. 8V61-8286-KE

Ford Focus Mk3 Radiator Coolant Pipe Hose Tube Line 1.5 TDCi Diesel 8V61-8286-KE

€23.95

Part no. 95B121049E

Porsche Macan 95B Engine Water Coolant Hose Pipe Tube Line 2.0 TFSI 95B121049E

€56.95

Part no. XR849076

Jaguar X200 XF X250 XJ X350 Water Coolant Hose Pipe Line 2.7 Diesel XR849076

€32.95

Part no. FPLA6N650

Range Rover Sport L494 Intercooler Hose Pipe 3.0 Diesel FPLA-6N650

€23.95

Part no. A2045012982

Water Pipe Mercedes W204 OM642 Engine Cooling Radiator Coolant Hose A2045012982

€28.95

Part no. 5A07782

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

€75.95

Part no. 8489610

Mini F65 F66 F67 BMW F70 F74 Turbocharger Coolant Supply Pipe 2.0 Petrol 8489610

€37.95

Part no. 4M0819350F

Audi Q7 4M Q8 Mk2 VW Touareg Mk3 Water Coolant Hose Line Tube Pipe 4M0819350F

€23.95

Part no. 7L8122051B

Audi Q7 4L VW Touareg 7L 4.2 TDi Coolant Hose Water Pump Pipe 7L8122051B

€32.95

Part no. A6512001651-1

Mercedes W204 Engine Coolant Water Pump Pipe Line OM651 Diesel A6512001651

€32.95

Part no. 04L122157BC

Audi A5 8T Heater Water Cooling Coolant Pipe Hose Line 04L122157BC

€32.95

Part no. 8384422

Land Rover L322 Air Con A/C Air Conditioning Pipe Hose Line 8384422

€113.95

Part no. XR849073

Jaguar XF X250 X200 XJ X350 Lower Tube Radiator Hose Pipe Line Diesel XR849073

€23.95

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