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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Audi A3 8V Engine Water Coolant Pipe Tube Line Hose 1.4 TFSI Petrol 5Q0122073L

€32.95

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Audi RS3 8V Water Pipe Hose Line Engine Cooling Coolant Unit Hose 8V0121073

€37.95

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Ford Transit Mk7 Radiator Coolant Hose Tube Pipe Line CC11-8286-BC

€47.95

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Audi A4 B8 A7 4G8 A6 4G C7 Q7 4L 3.0 TDi V6 EGR Vacuum Hose Pipe Line 059131056R

€23.95

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Audi A4 B8 A5 8T Coolant Breather Hose Pipe Line 1.8 TFSI Petrol 8K0121081BH

€23.95

Part no. FPLA-8C202-CB

Range Rover Sport L494 Coolant Hose Pipe Line 3.0 Diesel Engine FPLA8C202CB

€23.95

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BMW X3 Series E83 LCI E83N Radiator Cooling System Water Hose Pipe 3421987

€23.95

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Coolant Hose BMW X3 F25 18dX 20dX Diesel Heater Water Pipe Line Hose 8571617

€23.95

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Mercedes SLK R172 Diesel OM651 Coolant Hose Left N/S Radiator Line A1725010682

€23.95

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Jaguar XK8 X100 Heater Coolant Control Valve Hose Pipe Tube Line H43-5000-000

€23.95

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Turbocharger Cooling Line VW Golf MK7 Audi A3 8V 1.4 TSI Water Pipe 04E122157H

€23.95

Part no. 5N0122447BD

Audi Q3 8U Water Coolant Cooling Pipe Hose Line 2.0 TDI Diesel 5N0122447BD

€23.95

Part no. 7E0121086Q

Volkswagen Transporter T5 T6 Engine Coolant Hose Cooling Water Pipe 7E0121086Q

€32.95

Part no. 5K0121064A

Volkswagen Passat B7 CC Water Coolant Pipe Hose 2.0 TDI CFGC 5K0121064A

€23.95

Part no. 03C121065F

Volkswagen VW Touran 1T Petrol Engine Coolant Pipe Hose Vent 03C121065F

€23.95

Part no. 7537605

BMW F20 F21 Water Coolant Hose Pipe N13 Petrol 7537605

€42.95

Part no. 8K0819377AA

Audi A5 8T Water Hose Cooling Radiator Coolant Pipe Line 8K0819377AA

€28.95

Part no. 8654824

BMW G20 G21 Petrol Coolant Hose Expansion Tank Cylinder Head Pipe Line 8654824

€32.95

Part no. 03N122157E

VW Volkswagen Tiguan AD1 Water Coolant Pipe Hose Line 2.0 TDI Diesel 03N122157E

€37.95

Part no. 5Q0122157AT

Audi A3 8V VW Golf 5G Engine Water Coolant Tube Pipe 1.4 TFSI Petrol 5Q0122157AT

€37.95

Part no. L8D2-8B160-AD

Land Rover Discovery Sport L550 Water Coolant Pipe Hose 1.5 PHEV L8D2-8B160-AD

€42.95

Part no. 8572908

Water Hose BMW G30 G31 G11 B57 Diesel Coolant Expansion Tank Pipe Line 8572908

€23.95

Part no. 06L133583G

Audi A4 B9 Water Coolant Pipe Hose Line 2.0 TFSI Petrol 06L133583G

€23.95

Part no. A2712002552

Water Pipe Mercedes W204 M271 Engine Cooling Radiator Coolant Hose A2712002552

€37.95

Part no. 7540666

Radiator Return Hose BMW E60 E61 E63 N62N Petrol Pipe Cooling Water 7540666

€23.95

Part no. K8D2-8274-AC

Land Rover Discovery Sport L550 Coolant Hose Pipe Line K8D2-8274-AC

€37.95

Part no. 7611148

BMW F01 F01 LCI F02 F02 LCI F03 F03 LCI Coolant Hose Tube Pipe Line 7611148

€42.95

Part no. 4G0816743AP

Audi S6 C7 A7 Refrigerant Hose Pipe Line 4G0816743AP

€66.95

Part no. 5182585

Ford Mondeo Mk5 Coolant System Hose Pipe Line 2.0 Petrol Engine DS78-8286-BB

€23.95

Part no. 7952843

Mini F65 F66 F67 BMW F70 F74 Engine Coolant Hose Pipe 2.0 Petrol 7952843

€51.95

Part no. 8W0122055CA-1

Audi A4 B9 A5 F5 Engine Water Coolant Pipe Hose Line 2.0 TDI 8W0122055CA

€51.95

Part no. 1K0121058BH

Volkswagen Touran 1T Oil Cooler Coolant Pipe Hose Tube 1.4 Petrol 1K0121058BH

€23.95

Part no. 6C11-8B274-EE

Ford Transit Mk7 Water Hose Engine Cooling Radiator Coolant Pipe 6C11-8B274-EE

€23.95

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Mercedes W212 OM651 Coolant Hose Connector Thermostat Pump Outlet A6512033082

€23.95

Part no. 2249206

BMW 1 3 4 5 F10 F20 F30 F32 Turbocharger Oil Supply Hose Pipe Diesel 2249206

€23.95

Part no. 7604542

BMW F87 M2 F20 F30 Coolant Hose Pipe Line Tube Radiator N55 7604542

€23.95

Part no. 7559476

Mini Cabrio R50 R52 Lower Radiator Coolant Pipe Hose Line 7559476

€23.95

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Audi A4 B8 A5 8T Coolant Cooling Hose Pipe Line Tube 2.0 TDI 8K0819350D

€23.95

Part no. 5N0121070F

Volkswagen Tiguan 5N Water Coolant Cooling Pipe Line 2.0 TDi Diesel 5N0121070F

€23.95

Part no. A1725012982

Mercedes SLK R172 Water Hose Radiator Coolant Cooling Pipe Line A1725012982

€23.95

Part no. A2035016382

Water Hose Mercedes W203 W209 M272 Expansion Tank Coolant Pipe Line A2035016382

€23.95

Part no. A2215010225

Mercedes W221 Water Hose Radiator Coolant Cooling Pipe Line A2215010225

€32.95

Part no. 3AA122051A

Volkswagen Passat B7 CC Water Coolant Pipe Hose 2.0 TDI CFGC 3AA122051A

€23.95

Part no. 03L121071

Audi A4 B8 A5 8T A6 C6 Water Coolant Cooling Pipe Hose Line 2.0 TDI 03L121071

€23.95

Part no. L8D2-18N252-AC

Land Rover Discovery Sport L550 Coolant Water Hose Pipe Hose Line L8D2-18N252-AC

€32.95

Part no. 7L8121058

Audi Q7 4L 4.2 TDI Coolant Hose Radiator Pipe Water Cooling Line 7L8121058

€23.95

Part no. 9671124980

Water Hose Peugeot 207 1.6 HDI Engine Cooling Coolant Pipe Line 9671124980

€23.95

Part no. 4G0819374M

Audi A6 C7 A7 4G Heater Coolant Cooling Hose Pipe Line 4G0819374M

€28.95

Part no. 8511303

BMW X5 E70 Radiator Coolant Hose Line Tube Pipe 8511303

€32.95

Part no. A2218320423

Mercedes-Benz S W221 Diesel OM642 Water Coolant Cooling Pipe Hose A2218320423

€23.95

Part no. 4R83-8C289-AD

Jaguar XF X250 XJ X350 Coolant Hose Pipe Line 2.7 Diesel 4R83-8C289-AD

€23.95

Part no. 1K0121447BN

Volkswagen Golf Mk6 Audi A3 8P Water Coolant Pipe Hose 1.6 FSI BLF 1K0121447BN

€42.95

Part no. 8512419

BMW X3 F25 Coolant Water Hose Cooling Radiator Pipe Line 35dX N57Z 8512419

€28.95

Part no. 8K0121109H

Audi A5 8T Water Hose Cooling Coolant Radiator Pipe Line 2.0 TDI 8K0121109H

€23.95

Part no. 3C0122051CS

Volkswagen Passat B6 Engine Coolant Hose Pipe Tube Line 2.0 TDI 3C0122051CS

€23.95

Part no. AH22-8584-AC

Land Rover Discovery 4 L319 Water Coolant Pipe Hose Line 3.0 D AH22-8584-AC

€32.95

Part no. 8514233

Coolant Hose BMW F10 520d X3 F25 20dX N47N Radiator Water Cooling Pipe 8514233

€23.95

Part no. 7843266

Coolant Hose BMW F10 M5 F12 F13 M6 Engine Cooling Pipe Line 7843266

€23.95

Part no. 5Q0122101BP-1

Audi A3 8V Water Coolant Radiator Pipe Hose Line 2.0 TDI 5Q0122101BP

€37.95

Part no. 078133753A

Audi RS4 B7 Jet Pump Intake Vacuum System Pipe Hose Line 4.2 FSI 078133753A

€80.95

Part no. 2754220-2

Mini Cooper S R55 R56 R57 N14 Engine Radiator Coolant Cooling Hose Pipe 2754220

€32.95

Part no. 2314903

Ford Ranger Mk6 Engine Water Coolant Hose Pipe 2.0 EcoBlue Diesel JB3G-9U469-AD

€37.95

Part no. AH22-9A263-AC

Land Rover Discovery L319 Water Coolant Pipe Hose Line 3.0 Diesel AH22-9A263-AC

€23.95

Part no. 6C1118K582DB

Ford Transit Mk7 Water Hose Coolant Line 2.2 TDCi 6C1118K582DB

€23.95

Part no. 6Q0121109BF

Skoda Fabia Mk1 6Y Water Hose Radiator Coolant Pipe Line 1.9 Diesel 6Q0121109BF

€28.95

Part no. 9091603084

Lexsus LS400 Cooling Coolant Thermostat Water 9091603084

€23.95

Part no. 1K0133366BB

Audi A3 8P A4 B7 Golf Mk6 Water Coolant Pipe Hose Line 2.0 TSI 1K0133366BB

€23.95

Part no. 9802099-2

Mini Countryman R60 Paceman R61 Coolant Water Cooling Hose Pipe Line 9802099

€23.95

Part no. 8J0121447E

Audi TT 8J Engine Coolant Vent Hose Pipe 2.0 TDI Diesel CBBB 8J0121447E

€23.95

Part no. 5Q0816743D

Audi A3 8V VW Golf Mk7 Air Conditioning Hose A/C Pipe Line 5Q0816743D

€23.95

Part no. 8654852

BMW G20 G21 Water Coolant Return Pipe Hose Line Tube B48X 8654852

€23.95

Part no. 1K0121049CG-1

Volkswagen Golf Mk6 Jetta Mk5 Radiator Water Pipe Hose 1.4 TSI 1K0121049CG

€61.95

Part no. 8U0121485

Audi RSQ3 8U Front Water Coolant Pipe Hose Line Tube 2.5 TFSI 8U0121485

€51.95

Part no. KK21-8W005-BC

Ford Transit Custom Mk8 Coolant Radiator Pipe Hose Line KK21-8W005-BB

€23.95

Part no. 05L122157CD

Audi A5 F5 Engine Coolant Hose Tube Line Pipe 2.0 TDI Diesel DTNA 05L122157CD

€51.95

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Range Rover Sport L494 Evoque L538 Coolant Hose Line GJ32-8K012-AA LR071986

€23.95

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Audi A8 D4 Engine Water Coolant Pipe Hose Line Feed 3.0 TDI 059121598AB

€37.95

Part no. 8W0122291AK

Audi A4 B9 35 TFSI DMSB Petrol Water Coolant Hose Line Tube Pipe 8W0122291AK

€37.95

Part no. 04L131850A

Volkswagen Passat B8 Water Cooling Coolant Pipe Pipe Hose 2.0 TDI 04L131850A

€23.95

Part no. 8J0121124A

Audi RS3 8P Gearbox Oil Cooler Coolant Pipe Hose Line 2.5 TFSI CEPA 8J0121124A

€37.95

Part no. KX73-65007-AB

Land Rover Discovery Sport L550 Water Cooler Valve 1.5 PHEV KX73-65007-AB

€61.95

Part no. A2702031582

Coolant Hose Mercedes W177 M260 Engine Coolant Cooling Pipe Line A2702031582

€23.95

Part no. PCH001250

Land Rover L322 Radiator Hose Pipe Cooler Line PCH001250

€113.95

Part no. 4G0819337

Audi A6 C7 3.0 TFSI Water Coolant Pipe Hose Line 4G0819337

€23.95

Part no. 7540667

Radiator Return Hose BMW E60 E61 E63 N62N Petrol Pipe Cooling Water Pump 7540667

€23.95

Part no. LR071992

Land Rover Discovery L550 Water Pipe Coolant Hose Line 2.0 Diesel GJ32-8B159-AA

€23.95

Part no. C2S16877

Jaguar X-Type X400 Water Outlet Water Rail Hose Pipe Tube 2.5 Petrol C2S16877

€37.95

Part no. A2475010258

Water Hose Mercedes C118 W177 W247 Engine Coolant Pipe Line A2475010258

€23.95

Part no. 059121507M

Audi A4 S4 8K A5 S5 8T Engine Coolant Pipe Hose Tube Line 059121507M

€23.95

Part no. 8K0121055L

Audi A4 B8 Water Hose Cooling Coolant Radiator Pipe Line Diesel 8K0121055L

€28.95

Part no. 5A30C20

BMW U06 Active Tourer X1 U11 Coolant Hose Pipe Line 5A30C20

€32.95

Part no. 9398956

BMW G20 G21 Water Coolant Pipe Hose Line B46X B48X Hybrid Engine 9398956

€23.95

Part no. 059121465B-1

Audi A4 B8 A5 8T A6 C7 Q7 4L Coolant Pipe Water Hose 3.0 TDI 059121465B

€56.95

Part no. 5N0121447C

VW Volkswagen Tiguan 5N Water Hose Coolant Cooling Tube Pipe Line 5N0121447C

€23.95

Part no. A2055010891-1

Mercedes W205 Water Hose Radiator Coolant Cooling Pipe Line A2055010891

€23.95

Part no. 6R0121070N

Audi A1 8X Engine Coolant Water Pipe Hose Line 1.6 TDI CAYC 6R0121070N

€51.95

Part no. A1775010403

Mercedes W177 Coolant Expansion Tank Hose Pipe Line A1775010403

€42.95

Part no. 6W93-6F073-AB

Jaguar XF X250 Intercooler Pipe Hose Line Diesel 6W93-6F073-AB

€23.95

Part no. 2247638

Ford Fiesta Mk7 1.0 Ecoboost Coolant Pipe Hose Water Line CM5G-8B451-GA

€23.95

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