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 A4 B9 A5 F5 Water Cooling Coolant Pipe Hose Line 2.0 TDI 05L122157AS

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. A4158305800

Mercedes W415 Water Hose Coolant Cooling Pipe Line A4158305800

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. 06E121044M

Audi A6 C7 A4 B8 A7 4G A8 D3 Coolant Hose Line Tube Pipe 06E121044M

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. 6R0122101DJ

Audi A1 S1 8X 2.0 TFSI Petrol Water Coolant Pipe Hose Line 6R0122101DJ

£28.95

Free delivery: Oct 23

If paid before 14:00

Part no. 7605640

BMW F12 F13 F06 Coolant Hose Radiator Line Water Pipe 7605640

£37.95

Free delivery: Oct 23

If paid before 14:00

Part no. A2065015100

Mercedes W206 M254 Petrol Engine Coolant Hose Pipe Line Tube A2065015100

£66.95

Free delivery: Oct 23

If paid before 14:00

Part no. 9170342

BMW F07 F10 F11 F12 F13 F01 F02 Coolant Return Pipe Hose Line 9170342

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. RHD-Q0008579V002000000

Smart ForTwo C450 Water Hose Radiator Coolant Pipe Line Q0008579V002000000

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. A2602000051

Mercedes W177 Water Hose Water Coolant Cooling Pipe Line A2602000051

£28.95

Free delivery: Oct 23

If paid before 14:00

Part no. A2068300602

Mercedes W206 M254 Petrol Engine Coolant Hose Pipe Line Tube A2068300602

£75.95

Free delivery: Oct 23

If paid before 14:00

Part no. 7P6121070AK

VW Volkswagen Touareg 7P Gearbox Coolant Pipe Hose Tube 3.0 Diesel 7P6121070AK

£28.95

Free delivery: Oct 23

If paid before 14:00

Part no. 9119192

BMW F07 F10 F12 Water Hose Inlet Coolant Pipe Line Tube 9119192

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 8W0819342L-1

Audi A5 F5 Water Return Coolant Pipe Hose Flow Line 8W0819342L

£28.95

Free delivery: Oct 26 – Nov 2

If paid before 14:00

Part no. A2118303996

Water Hose Mercedes W211 CLS W219 Engine Coolant Cooling Pipe Line A2118302596

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. A2782000551

Mercedes W212 M157 Water Coolant Return Pipe Hose Line A2782000551

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. A2068307402

Mercedes W206 M254 Petrol Engine Coolant Hose Pipe Line Tube A2068307402

£32.95

Free delivery: Oct 23

If paid before 14:00

Part no. 99610650204

Porsche Boxster 986 Engine Coolant Cooling Water Pipe Hose Tube Line 99610650204

£66.95

Free delivery: Oct 23

If paid before 14:00

Part no. rhd-A2118302896

Water Hose Mercedes W211 CLS W219 Engine Coolant Cooling Pipe Line A2118302896

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 8573220

Water Hose BMW G30 G31 G11 B57 Diesel Radiator Coolant Pipe Line 8573220

£28.95

Free delivery: Oct 23

If paid before 14:00

Part no. 9886652

BMW U06 U11 F70 F74 Coolant Hose Line Return Tube Pipe 9886652

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. A2065010200

Mercedes W206 M254 Lower Cooler Coolant Hose Pipe Line Tube A2065010200

£89.95

Free delivery: Oct 23

If paid before 14:00

Part no. A2205011882

Mercedes W220 W215 Water Coolant Pipe Hose Petrol Engine A2205011882

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 03L121131K

VW Transporter T5 2.0 TDI CAAA Sealing Flange Temperature Sender 03L121131K

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. 8W0145925P

Audi A4 B9 A5 F5 Water Coolant Pipe Hose 2.0 TDI 8W0145925P

£28.95

Free delivery: Oct 23

If paid before 14:00

Part no. 04L121070AB

Audi Q3 8U 2.0 TDI DFUA Diesel Water Coolant Hose Pipe Tube Line 04L121070AB

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 8475691

BMW i4 G26 Water Hose Radiator Coolant Cooling Tube Pipe Line 8475691

£42.95

Free delivery: Oct 23

If paid before 14:00

Part no. 8514442

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

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. 8W0145920M

Audi A5 F5 Water Hose Cooling Radiator Coolant Pipe Line 2.0 TDI 8W0145920M

£37.95

Free delivery: Oct 23

If paid before 14:00

Part no. 2754423

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

£28.95

Free delivery: Oct 23

If paid before 14:00

Part no. A2055011691

Mercedes W205 Hybrid Water Hose Radiator Coolant Cooling Pipe Line A2055011691

£56.95

Free delivery: Oct 23

If paid before 14:00

Part no. 99610662751

Porsche Boxster 986 Engine Water Coolant Pipe Hose Line 99610662751

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. rhd-A2118302996

Water Hose Mercedes W211 CLS W219 Engine Coolant Cooling Pipe Line A2118302996

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. A2782000651

Mercedes W212 M157 Water Coolant Feed Pipe Hose Line A2782000651

£32.95

Free delivery: Oct 23

If paid before 14:00

Part no. 8629959

Mini F55 F56 F57 F60 Petrol Turbo Charger Coolant Hose Oil Pipe Line 8629959

£37.95

Free delivery: Oct 23

If paid before 14:00

Part no. rhd-A2038302696

Mercedes-Benz C CLK Class W203 C209 Heater Hose Pipe Line A2038302696

£14.95

Free delivery: Oct 23

If paid before 14:00

Part no. RHD-A2138302505

Coolant Hose Mercedes W213 C238 W253 OM654 Water Pipe Line A2138300603

£28.95

Free delivery: Oct 23

If paid before 14:00

Part no. 04E121070L

Volkswagen Audi Seat Skoda Engine Plastic Water Coolant Pipe Hose 04E121070L

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. 059121511BT

Audi A4 S4 B9 A5 S5 F5 Water Coolant Hose Line Tube Pipe 3.0 Diesel 059121511BT

£37.95

Free delivery: Oct 23

If paid before 14:00

Part no. 5Q0122101CK

Audi A3 8V 1.6 Diesel Engine Coolant Hose Line Tube Pipe Right O/S 5Q0122101CK

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. CPLA-6F074-CC

Range Rover Sport L494 Coolant Hose Pipe Line 3.0 SDV6 Diesel CPLA-6F074-CC

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 9236675

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

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. 75164140

BMW E60 N53 Petrol Thermostat Coolant Hose Line Tube Pipe 7516414070

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. A2208324494

Mercedes C215 W220 Heating Water Return Pipe Hose Line Petrol Engine A2208324494

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 6R0121070L

Audi A1 8X 1.4 TSI Petrol Engine Water Hose Coolant Pipe Line 6R0121070L

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. A2602030082

Coolant Hose Mercedes W177 M260 Engine Coolant Cooling Pipe Line A2602030082

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. A2478306800

Water Hose Mercedes W177 W247 Heat Exchanger Coolant Return Pipe A2478306800

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. 7L6122096M-2

VW Touareg 7L Water Coolant Hose Pipe Line Tube 3.0 TDI Diesel Engine 7L6122096M

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. 7805600

BMW X5 X6 E70 E71 Radiator Hose Coolant Line Pipe 3.0d 3.0sd Diesel 7805600

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. 7L5122096D

Porsche Cayenne 9PA Engine Coolant Hose Water Pipe Line 3.0 TDI 7L5122096D

£28.95

Free delivery: Oct 23

If paid before 14:00

Part no. MB3G-8B274-PAD

VW Volkswagen Amarok Mk2 Water Coolant Pipe Hose Line 3.0 TDI MB3G-8B274-PAD

£28.95

Free delivery: Oct 23

If paid before 14:00

Part no. 99610662553

Porsche Boxster 986 Engine Water Coolant Pipe Hose Line 99610662553

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. A2642007500

Mercedes W205 M264 Petrol Radiator Coolant Pipe Line Tube Hose A2642007500

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. A2515014782

Mercedes W251 Coolant Hose Radiator Cooling Water Pipe Line A2515014782

£28.95

Free delivery: Oct 23

If paid before 14:00

Part no. A2048305596

Water Pipe Mercedes W204 S204 OM646 Cooling Coolant Hose Line A2048305596

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. A9068322215-1

Mercedes Sprinter W906 Water Hose Diesel Radiator Cooling Pipe A9068322215

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 6968107

BMW X5 X6 E70 E71 E72 Water Pipe Coolant Tube Hose 6968107

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. RHD-8K2819350AD

Audi A4 B8 A5 8T Heater Coolant Hoses Pipes Water Line 2.0 TDI 8K2819350AD

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. 7P0121065M

Porsche Cayenne 92A ATF Preheater Coolant Pipe Hose Bracket 7P0121065M

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 5N0121070G

Volkswagen Tiguan 1 5N 2,0 TDi Diesel Coolant Pipe Water Line 5N0121070G

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 8K0819337A

Audi A4 B7 2.0 TDI BRE Diesel Water Coolant Pipe Hose Line Tube 8K0819337A

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. 1K0122101CK

Audi Q3 8U Water Hose Cooling Radiator Coolant Pipe Line 1K0122101CK

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. AV41-8260-AC

Ford Kuga Mk1 Water Cooling Coolant Pipe Hose 2.0 TDCI Diesel AV41-8260-AC

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. A6395017482

Water Hose Mercedes Vito Viano W639 Cooling Coolant Pipe Line OM651 A6395017482

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. A2742000751

Mercedes W204 Coolant Pipe M274 Petrol Coolant Water Pump Line A2742000751

£37.95

Free delivery: Oct 23

If paid before 14:00

Part no. 8853293

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

£28.95

Free delivery: Oct 23

If paid before 14:00

Part no. A6542039600

Mercedes W205 W447 OM654 Water Hose Engine Cooling Coolant Pipe Line A6542039600

£37.95

Free delivery: Oct 23

If paid before 14:00

Part no. RHD-4G2819350AC

Audi A6 C7 A7 4G Water Pipe Hose Engine Coolant Cooling Line 3.0 TDI 4G2819350AC

£28.95

Free delivery: Oct 23

If paid before 14:00

Part no. 4G0122101G

Audi A6 C7 2.0 TDI CGLC Water Coolant Hose Line Tube Pipe 4G0122101G

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 1771300

Ford Transit Mk8 Water Coolant Pipe Hose Line 2.2 TDCI Diesel CK2Q-9F476-AA

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 6C11-8W005-EA

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

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 7L5122109B

Porsche Cayenne 9PA Water Coolant Pipe Hose Tube 3.2 V6 7L5122109B

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. 8W0145924P

Audi A4 B9 Water Hose Cooling Radiator Coolant Pipe Line 8W0145924P

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. A2055013782

Mercedes W205 Hybrid Water Coolant Pipe Hose Line A2055013782

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. A2515018482

Coolant Hose Mercedes W251 Diesel OM642 Water Pump Radiator Line A2515018482

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 8513337

BMW F10 F11 F30 F31 F36 LCI X5 F15 Water Coolant Pipe Hose N57N Diesel 8513337

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. 99610623700

Porsche Boxster 986 Engine Water Coolant Pipe Hose Line 99610623700

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. LR114275

Land Rover Discovery Sport L550 Water Coolant Pipe Hose Line G4D3-8A594-BD

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. 7565782

BMW 5 6 Series E60 E61 E63 LCI Petrol Cooling System Coolant Return Hose Pipe

£37.95

Free delivery: Oct 23

If paid before 14:00

Part no. KK21-8B273-BB

Ford Transit Custom 2.0 EcoBlue Coolant Hose Water Pipe Line KK21-8B273-BB

£28.95

Free delivery: Oct 23

If paid before 14:00

Part no. A1332000053

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

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. 7612446

Cooling Hose BMW E84 N20 Petrol Engine Radiator Water Coolant Pipe Line 7612446

£37.95

Free delivery: Oct 23

If paid before 14:00

Part no. A6542033401

Mercedes W177 Water Coolant Cooling Pipe Line Hose A200d Diesel A6542033401

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 99610624700

Porsche Boxster 986 Engine Water Coolant Pipe Hose Line 99610624700

£23.95

Free delivery: Oct 23

If paid before 14:00

Part no. A2122701296

Mercedes W212 M156 E63 AMG Oil Cooler Coolant Pipe Hose Line A2122701296

£94.95

Free delivery: Oct 26 – Nov 2

If paid before 14:00

Part no. 4K0122061Q

Audi A6 C8 High Voltage Battery Cooling Hose Tube 50 55 TFSIe 4K0122061Q

£75.95

Free delivery: Oct 23

If paid before 14:00

Part no. 04E103474G

Audi A3 8V Tank Crankcase Breather Vent Pipe Line 04E103474G

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. 06K121065R

Seat Leon Mk3 Cupra VW Golf GTI Water Coolant Pipe 2.0 TFSI 06K121065R

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 7636413

Coolant Hose BMW i3 I01 Hybrid Rex Water Cooling Pipe Electric Motor 7636413

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. A2742002551

Mercedes W213 Water Hose Cooling Coolant Pipe Line A2742002551

£18.95

Free delivery: Oct 23

If paid before 14:00

Part no. 1K0121063S

Seat Ibiza 6J Coolant Cooling Engine Pipe Hose Line Radiator 1K0121063S

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 7611338

BMW 7 Series E65 E66 E67 Engine Cooling System Vacuum Pipe 7611338

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 8473704

Water Hose BMW G20 G21 G30 G31 X3 G01 Diesel Cooling Coolant Pipe Line 8473704

£28.95

Free delivery: Oct 23

If paid before 14:00

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

-2%

Part no. 7540666

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

Promo price

£28.95

£28.45

Free delivery: Oct 23

If paid before 14:00

Part no. 8571606

Coolant Hose BMW X3 F25 X4 F26 Diesel Radiator Water Pipe Line N57N 8571606

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. A2215010725

Mercedes W221 Hose Radiator Coolant Cooling Pipe Line A2215010725

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. M8B2-2A457-AA

Range Rover Sport L494 Coolant Pipe Hose Line Tube M8B2-2A457-AA

£118.95

Free delivery: Oct 26 – Nov 2

If paid before 14:00

Part no. 9301572

BMW E81 E87 E90 E91 F20 F30 F31 Condensation Water Outlet Hose 9301572

£13.95

Free delivery: Oct 23

If paid before 14:00

Part no. 7P6122447T

Volkswagen VW Touareg 7P Coolant Hoses Pipes Lines 3.0 TDI 7P6122447T

£37.95

Free delivery: Oct 23

If paid before 14:00

Part no. 06L121075B

Audi A4 B8 A5 8T A6 C7 Water Coolant Pipe Hose Line 1.8 2.0 TFSI 06L121075B

£23.95

Free delivery: Oct 23

If paid before 14:00

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