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 R171 M272 Petrol Engine Radiator Hose Expansion Tank Line A1715010082

€47.95

Part no. 1K0122109CM

Volkswagen Golf Mk6 Scirocco Mk3 Water Coolant Pipe Hose 1.6 TDI 1K0122109CM

€23.95

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Volkswagen Touareg 7P Preheater Pipe Hose Line 3.0 TDI 7P0121065AC

€28.95

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BMW F20 F21 F32 N20 Turbo Charger Coolant Return Line Pipe Hose Tube 8853293

€32.95

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Mercedes W177 Engine Coolant Hose Pipe Tube Line 2.0 Diesel 654920 A6542031802

€66.95

Part no. L8D2-7H256-AC

Land Rover Discovery Sport L550 Water Coolant Pipe Hose 1.5 PHEV L8D2-7H256-AC

€37.95

Part no. 1K0122101CC-1

Audi A4 B7 Water Hose Cooling Coolant Radiator Pipe Line Tube 1K0122101CC

€23.95

Part no. AH22-7752-AC

Land Rover Discovery 4 L319 Coolant Water Pipe Hose 3.0 Diesel AH22-7752-AC

€23.95

Part no. 7P0819278B

VW Volkswagen Touareg 7P Coolant Pipe Hose Line 3.0 TDI Diesel Engine 7P0819278B

€70.95

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BMW 3 Series E46 Hose Engine Inlet Diesel Water Pump 6902683

€25.95

Part no. 9208183

BMW F30 F32 LCI 330d 335dX 430d 435dX Engine Radiator Return Coolant Hose Pipe

€23.95

Part no. 6C11-8W005-AL

Ford Transit Mk7 Water Coolant Hose Expansion Tank Radiator Pipe 6C11-8W005-AC

€23.95

Part no. YC1Q-8A544-AC

Ford Transit MK7 TDCI Water Pump Pipe Engine Coolant Flange YC1Q-8A544-AC

€23.95

Part no. GJ32-8C480-AB

Land Rover Discovery Sport L550 Engine Water Coolant Pipe Hose GJ32-8C480-AB

€28.95

Part no. A2468302796

Mercedes W176 W246 OM651 Radiator Water Coolant Hose Engine Cooling A2468302796

€23.95

Part no. A6542033502

Mercedes W213 C238 X253 OM654 Water Coolant Pipe Hose Line A6542033502

€37.95

Part no. 8K0121055N

Audi A4 B8 A5 8T 1.8 2.0 TFSI Petrol Engine Water Coolant Pipe Hose 8K0121055N

€32.95

Part no. 8K0819334BC

Audi A4 B8 A5 8T Water Coolant Hose Line Pipe 3.0 TFSI Petrol 8K0819334BC

€23.95

Part no. 3401564

BMW X3 Series E83 2.0d Cooling Radiator Expansion Tank Coolant Hose Pipe 3401564

€23.95

Part no. 5Q0121058R

Audi VW Seat Skoda Water Hose Cooling Radiator Coolant Pipe Line 5Q0121058R

€23.95

Part no. A6542034000

Coolant Pipe Mercedes W213 Diesel OM654 Oil Cooler Feed Coolant Hose 6542034000

€32.95

Part no. A2742002551

Mercedes W213 Water Hose Cooling Coolant Pipe Line A2742002551

€23.95

Part no. 059121075ES

Audi A6 C7 A7 4G Q7 4M Engine Coolant Water Pipe 3.0 TDI 059121075ES

€99.95

Part no. A2055011700

Mercedes W205 Water Hose Engine Coolant Cooling Pipe Line A2055011700

€23.95

Part no. 8650981

BMW G20 Water Hose Radiator Coolant Cooling Tube Pipe Line 8650981

€23.95

Part no. 5QF122051BB

Volkswagen Tiguan AX1 1.5 Petrol Engine Coolant Hose Line Tube Pipe 5QF122051BB

€42.95

Part no. XS7H-18495-FA

Ford Transit Mk7 Heater Water Hose Pipe Line 2C11-8A589-AC

€113.95

Part no. 8J0121109A

Audi TT 8J 2.0 TFSI Water Hose Cooling Coolant Radiator Pipe Line 8J0121109A

€23.95

Part no. 5Q0121070AG

VW Scirocco Mk3 Golf 5g Jetta A6 Water Coolant Pipe Hose Line Tube 5Q0121070AG

€28.95

Part no. 3Q0122058G

Skoda Karoq VW Golf Mk8 Coolant Hose Quick Release Coupling 2.0 TDI 3Q0122058G

€23.95

Part no. 6921428

BMW 5 6 Series E60 E63 E64 LCI Engine Cooling Radiator Water Hose Pipe 6921428

€23.95

Part no. GK2Q-8N039-AC

Ford Transit Mk8 Engine Coolant Hose Pipe Line 2.0 Diesel GK2Q-8N039-AC

€23.95

Part no. 7T16-8K012-AA

Ford Transit Connect Water Coolant Pipe Hose Line 1.8 TDCI 7T16-8K012-AA

€23.95

Part no. 4010098

Mercedes CL203 Metzger Water Pump Thermostat Coolant Outlet Pipe Hose 4010098

€23.95

Part no. 1343LP

Citroën C4 Grand Picasso Radiator Water Hose Tube Line Pipe 1.6 Diesel 1343LP

€23.95

Part no. 4447828

Ford Transit Mk7 Lower Radiator Hose Pipe Line 2.0 DI Diesel 1C15-8B274-EE

€23.95

Part no. 2078986

Ford Fiesta Mk7 Focus Mk3 Thermostat Housing Pipe Hose TDCi Diesel 9M5Q-8A586-DA

€23.95

Part no. 059121071CK

Audi Q7 4L 3.0 TDI Diesel Coolant Water Pipe Hose Line 059121071CK

€42.95

Part no. A2185012882

Water Hose Mercedes C207 W212 W218 Engine Cooling Coolant Pipe A2185012882

€28.95

Part no. 3C0121447L

Audi A3 8P VW Passat 3C Touran 1T Coolant Hose Pipe Line Tube 3C0121447L

€51.95

Part no. 06K121075BF

Engine Coolant Pipe Audi A3 S3 8V 2.0 TFSI Water Cooling Hose Line 06K121075BF

€28.95

Part no. LR081668

Land Range Rover Sport L494 Water Heater Hose Tuber Pipe Line HPLA-8A589-CA

€28.95

Part no. 059121054C

Audi A8 D4 3.0 TDI Diesel Coolant Water Hose Line Tube Pipe Engine 059121054C

€23.95

Part no. 8053463

BMW X3 F97 X4 F98 Coolant Hose Cooling Pipe Water Radiator Line 8053463

€32.95

Part no. 059121511CT

Audi Q7 4M Q8 Mk2 Water Coolant Hose Line Tube Pipe 3.0 Diesel 059121511CT

€80.95

Part no. A2208321794

Mercedes W220 Heating Water Line Hose M113 Engine A2208321794

€23.95

Part no. 1K0121109AK

Audi A3 8P Water Cooling Coolant Pipe Hose Line Petrol Engine 1K0121109AK

€23.95

Part no. 6C0121070G

Audi A1 8X Engine Coolant Water Pipe Hose Tube Line 1.6 TDI Diesel 6C0121070G

€32.95

Part no. L8D2-8A589-AB

Land Rover Discovery Sport L550 Coolant Water Hose Pipe 1.5 PHEV L8D2-8A589-AB

€32.95

Part no. 2501983

Ford Kuga Mk3 A/C Air Con Coolant Hose Pipe 2.5 Hybrid LX6H-19N602-VA

€75.95

Part no. 8674926

BMW G01 G02 G05 G07 G20 Engine Coolant Hose Pipe 3.0 Petrol M40i B58D 8674926

€32.95

Part no. 1C15-8C351-AD

Ford Transit Mk7 Radiator Water Hose Line Pipe 1C15-8C351-AD

€23.95

Part no. 1K0122051GL

Audi S3 8P VW Golf VI Water Coolant Hose Radiator Pipe Line 2.0 TFSI 1K0122051GL

€23.95

Part no. JB3G-8B550-AC

Ford Ranger Wildtrak Mk6 Coolant Hose Tube Line Pipe 2.0 Diesel JB3G-8B550-AC

€28.95

Part no. 94810604907

Porsche Cayenne Turbo 9PA Engine Water Coolant Pipe Tube Line Hose 94810604907

€66.95

Part no. 4G0819350S

Audi A6 C7 Engine Water Coolant Pipe Hose Tube Line 2.0 TDI Diesel 4G0819350S

€28.95

Part no. A2538308801

Heater Coolant Hose Mercedes C253 W213 Water Pump Heater Line A2538308801

€28.95

Part no. 06K121085M

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

€23.95

Part no. 06E121045AA

Audi A4 S4 B8 S5 8T A6 C7 Engine Coolant Hose Tube Line Pipe 06E121045AA

€23.95

Part no. 4H0819334L

Audi A8 D4 3.0 TDI Heater Hose Cooling Coolant Radiator Pipe Line 4H0819334L

€23.95

Part no. 6796332-1

BMW E90 E91 E92 N47 Power Steering Fluid Reservoir Pipe 6796332

€23.95

Part no. 059121512AE

Audi A6 C7 A7 4G Engine Coolant Water Pipe Line 3.0 TDI Diesel 059121512AE

€23.95

Part no. A1725014482

Mercedes SLK R172 OM651 Engine Coolant Water Pipe Hose A1725014482

€23.95

Part no. 6R0121447AN

Seat Ibiza 6J VW Polo 6R Coolant Water Hose Pipe 1.2 TDI 6R0121447AN

€23.95

Part no. A6542033401

Mercedes W177 Water Coolant Cooling Pipe Line Hose A200d Diesel A6542033401

€23.95

Part no. 7648352

Mini F54 F55 F56 F60 B36 B38 Engine Turbocharger Coolant Feed Line Pipe 7648352

€23.95

Part no. 135223

Citroën C4 Grand Picasso Radiator Hose Tube Line Pipe 1.6 Diesel 135223

€23.95

Part no. L8D2-18K596-AC

Land Rover Discovery Sport L550 Coolant Water Hose Pipe 1.5 PHEV L8D2-18K596-AC

€23.95

Part no. LX61-8D059-HCE

Ford Kuga Mk3 Coolant Hose Pipe Line 2.5 Hybrid LX61-8D059-HCE

€23.95

Part no. 9166925

BMW X3 F25 N47N Diesel Engine Water Hose Coolant Cooling Pipe Line 9166925

€23.95

Part no. 7592646

Hose BMW F13 Coupe N63 Heat Exchanger Coolant Cooling Pipe Line 7592646

€23.95

Part no. A1765011582

Mercedes W176 C117 X156 M133 Petrol Engine Water Coolant Hose Pipe A1765011582

€47.95

Part no. 2754222-2

Coolant Hose Mini Cooper R55 R56 R57 Cooling System Radiator Water Pipe 2754222

€23.95

Part no. 7565781

BMW 5 6 E60 E61 E63 LCI N52N N53 Radiator Coolant Return Hose Line Pipe 7565781

€47.95

Part no. 9292728

BMW i3 I01 Water Coolant Cooling Hose Supply Pipe Line 9292728

€23.95

Part no. LR125477

Range Rover Sport L494 Water Coolant Pipe Hose Line 3.0 MHEV K6D3-8C481-AB

€42.95

Part no. 8482258

BMW G01 G02 G05 G20 G23 Engine Coolant Connecting Pipe Hose M40i B58D 8482258

€51.95

Part no. 7596835-1

BMW F20 F21 F30 N13 Coolant Hose Engine Cooling Water Pipe Line 7596835

€23.95

Part no. 7P0815373

VW Volkswagen Touareg 7P Coolant Hose Pipe Line 3.0 TDI Diesel 7P0815373

€28.95

Part no. 9894757

BMW X3 G01 X4 G02 Coolant Cooling Pipe Hose Line B48 Petrol Engine 9894757

€28.95

Part no. 8571609

Coolant Hose BMW X3 F25 X4 F26 30dX N57N N57Z Water Cooling Pipe 8571609

€23.95

Part no. 99710655103

Porsche Cayman 987 Engine Cooling Coolant Hose Connector Sleeve 2.7 99710655103

€23.95

Part no. A1332000053

Mercedes CLA W176 AMG M133 E20 Coolant Hose Cooling Water Pipe Line A1332000053

€28.95

Part no. A2058309005

Heating Line Mercedes W205 Return Water Hose To Circulation Pump A2058309005

€23.95

Part no. 8K0819332J

Audi A5 8F 2.0 TDI Water Hose Cooling Radiator Coolant Pipe Line 8K0819332J

€23.95

Part no. 9X2Q-6C661-BB

Land Rover Discovery 4 L319 Coolant Hose Pipe Line Tube 9X2Q-6C661-BB

€23.95

Part no. 5N0121109F

Audi Q3 8U Engine Water Coolant Pipe Hose Line 1.4 TFSI 5N0121109F

€23.95

Part no. 079121070CK

Coolant Pipe Audi A6 C7 S7 4G 4.0 TFSI Water Hose Line 079121070CK

€37.95

Part no. 1503721

Ford Mondeo Mk4 Engine Cooling Coolant Hose Tube Line Pipe 6G91-8274-EE

€23.95

Part no. 8054850

Coolant Hose BMW X3 F97 X4 F98 Cooling Pipe Radiator Return Line 8054850

€66.95

Part no. LX61-8D031-HCE

Ford Kuga Mk3 Coolant Hose Pipe Line 2.5 Petrol Hybrid LX61-8D031-HCE

€23.95

Part no. AB39-8C351-CA

Ford Ranger Mk6 Coolant Hose Pipe Line 3.2 Diesel AB39-8C351-CA

€23.95

Part no. 7P0815983

VW Volkswagen Touareg 7P Coolant Water Pipe Hose Line Diesel Engine 7P0815983

€23.95

Part no. 8W0121400B

Audi A4 B9 Oil Coolant Hose Pipe Line Tube 8W0121400B

€32.95

Part no. 7N0122101F

Volkswagen Sharan 7N Engine Cooling Water Pipes Hoses 1.4 TSI 7N0122101F

€42.95

Part no. 06K121051P

Volkswagen Scirocco Mk3 Audi A3 8P Coolant Pipe Hose Line Tube 06K121051P

€23.95

Part no. 8054849

Coolant Hose BMW X3 F97 X4 F98 Cooling Pipe Radiator Return Line 8054849

€66.95

Part no. 7T16-8K276-AA

Ford Transit Connect Coolant Expansion Tank Pipe Hose 1.8 TDCI 7T16-8K276-AA

€23.95

Part no. 7L0122101E

Volkswagen Touareg 7L Engine Water Coolant Pipe Hose 3.2 V6 Petrol 7L0122051

€47.95

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