What is the construction and purpose of engine cooling?

Engine cooling is a set of parts responsible for maintaining the proper operating temperature of the powertrain. A typical system consists of a radiator, water pump, thermostat, hoses, fan, sensors, and an expansion tank. These elements are located mainly in the engine compartment and connected by a coolant circuit.

What is engine cooling used for?

Engine cooling is used to absorb excess heat from the block and cylinder head and to stabilize the operating temperature during driving and when stationary. An efficient system limits the risk of overheating and also affects the proper operation of the heater, fan, and control sensors. Without proper cooling, engine performance may drop, and cooperating components may fail.

What role does the expansion tank play in the cooling system?

The expansion tank is a cooling system element that absorbs fluid volume changes resulting from temperature increases and decreases. It is used to maintain the correct fluid level and works with a pressure cap that stabilizes the system's operating conditions. Fluid levels and the condition of return hoses are often checked within its vicinity.

How to choose a cooling system part for a specific car version?

It is safest to compare the OEM number, engine version, body type, and mounting location. It is also worth checking the number of pins in the plug, pipe diameter, mounting type, and the presence of additional sensors. For parts such as a fan or auxiliary pump, the control method also matters.

What symptoms indicate cooling system problems?

Typical symptoms include rising engine temperature, fluid leaks, the fan not turning on, steam from under the hood, or the unit taking too long to warm up. In some cars, temperature sensor errors or weaker interior heating also appear. Symptoms should be analyzed in conjunction with the operation of the thermostat, water pump, and hose tightness.

What to pay attention to when installing engine cooling parts?

After installation, you must check the tightness of connections, correct seating of mounts, and the condition of seals. It is also important to top up with the correct fluid and bleed the system according to the manufacturer's procedure. In the case of electrical parts, you should additionally verify the plugs, wiring harness, and fan control operation.

Engine cooling

At the Global Parts automotive store, we offer a wide selection of original used car parts, including engine cooling components, for many popular car brands such as BMW, Mini, Mercedes, Audi, Volkswagen, and others. Each of our car parts undergoes quality control to ensure you receive a top-quality product.

More information

Find it faster

Match to your vehicle

Make

Audi S4 B8 Engine Water Coolant Pipe Hose Left N/S Outer 3.0 TFSI 8K0145931D

Product currently unavailable

Part no. 4K0122055AK

Audi A6 C8 Water Coolant Pipe Hose Line 3.0 TDI 4K0122055AK

Product currently unavailable

Part no. 8R0819332J

Audi Q5 8R 2.0 TDI Engine Water Coolant Pipe Hose Line Diesel 8R0819332J

Product currently unavailable

Part no. 06M129666F

Audi RS5 F5 Turbo Coolant Hose Line Tube Pressure Pipe Petrol 06M129666F

Product currently unavailable

Part no. 5N0921051A

Audi A3 8P 2.0 TDI Water Hose Radiator Coolant Pipe Line 5N0921051A

Product currently unavailable

Part no. 06N121492C

Audi A4 B9 A5 F5 A6 C8 Water Coolant Hose Pipe Line 06N121492C

Product currently unavailable

Part no. 8K0122101G-1

Audi A4 B8 A5 8T Heater Water Coolant Pipe Hose Line 1.8 2.0 Petrol 8K0122101G

Product currently unavailable

Part no. 8V0121124-1

Audi RS3 8V Engine Oil Coolant Hose Pipe 2.5 TFSI 8V0121124

Product currently unavailable

Part no. 4F0121055AC

Audi A6 C6 Engine Cooling Coolant Hose Pipe Line 2.7 TDI 4F0121055AC

Product currently unavailable

Part no. 04E122157AC

Audi A4 B9 Turbo Charger Coolant Pipe Hose Line Tube 1.4 TFSI 04E122157CA

Product currently unavailable

Part no. 4K0265356AC

Audi A6 C8 A7 4K Coolant Pipe Hose Line 50 TFSIe 4K0265356AC

Product currently unavailable

Part no. 06M919501

Audi A5 S5 F5 Water Coolant Temperature Control Sensor Unit 06M919501

Product currently unavailable

Part no. 07K121061B

Audi RSQ3 F3 Water Coolant Hose Pipe Line 2.5 TFSI 07K121061B

Product currently unavailable

Part no. 06M121031D

Audi A4 B9 A5 RS5 F5 Engine Water Pump Pulley 2.9 TFSI DECA Petrol 06M121031D

Product currently unavailable

Part no. 05L121111H

Audi A4 B9 A5 F5 Engine Coolant Thermostat Housing Diesel 2.0 TDI 05L121111H

Product currently unavailable

Part no. 06B121070H

Audi A4 B7 1.8 T BFB Coolant Hose Line Tube Pipe 06B121070H

Product currently unavailable

Part no. 1K0121157AT

VW Golf Mk5 Audi A3 8P EGR Coolant Hose Pipe Line 2.0 TDI 1K0121157AT

Product currently unavailable

Part no. 079115277AJ

Audi RS4 B8 Oil Pump Pickup Pipe 4.2 FSI Petrol 079115277AJ

Product currently unavailable

Part no. 8R0121036A

Audi Q5 8R Heater Water Cooling Coolant Pipe Hose Line 8R0121036A

Product currently unavailable

Part no. 4G0122449K

Audi A6 C7 A7 4G Water Coolant Pipe Hose Line 3.0 TDI 4G0122449K

Product currently unavailable

Part no. 04L965559

Audi A4 B8 Auxiliary Water Coolant Pump Mount Bracket 2.0 TDI 04L965559

Product currently unavailable

Part no. 04L121070D

Audi A3 8V 2.0 TDI Diesel Water Coolant Hose Pipe Tube Line 04L121070D

Product currently unavailable

Part no. 07L121053E

Audi S6 C6 S8 D3 Quattro 5.2 FSI V10 BSM Coolant Pipe Hose Water Line 07L121053E

Product currently unavailable

Part no. 06L133583G

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

Product currently unavailable

Part no. 06M115401F

Audi A4 S4 B9 Oil Filter Housing Oil Cooler 3.0 TFSI V6 Petrol 06M115401F

Product currently unavailable

Part no. 5Q0122447AQ

Audi A3 8V Water Pipe Engine Cooling Radiator Coolant Hose 2.0 TDI 5Q0122447AQ

Product currently unavailable

Part no. 079115289S

Audi A5 RS5 Oil Sump Separator Baffle Plate Panel 4.2 V8 Petrol 079115289S

Product currently unavailable

Part no. 8K0121109H

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

Product currently unavailable

Part no. 03L121157B

Audi A4 B8 A5 8T 2.0 TDI Water Hose Cooling Pipe Line 03L121157B

Product currently unavailable

Part no. 06M121132B

Audi RS5 F5 Water Coolant Pipe Hose Cooling Line Connection Flange 06M121132B

Product currently unavailable

Part no. 8R0121081C

Audi Q5 8R 3.0 TDI Water Hose Cooling Radiator Coolant Pipe Line 8R0121081C

Product currently unavailable

Part no. 06M103515F

Oil Separator Audi S4 B9 S5 5F 3.0 TFSI V6 Breather Valve 06M103515F

Product currently unavailable

Part no. 06L121111M-2

Audi S3 8Y Q5 FY Water Pump Thermostat Regulator 2.0 TFSI 06L121111M

Product currently unavailable

Part no. 8N0422885F

Audi TT 8N Low Pressure Return Power Steering Pipe Line 3.2 Petrol 8N0422885F

Product currently unavailable

Part no. 079121013

Audi S7 4G Water Pump Coolant Cooling Unit 079121013

Product currently unavailable

Part no. 4G0122101

Audi A6 C7 Radiator Upper Hose Line Pipe Left N/S 2.8 Petrol 4G0122101

Product currently unavailable

Part no. 6R0121093B

Audi A1 8X Additional Coolant Pump Bracket Mount Support Holder 6R0121093B

Product currently unavailable

Part no. 1J0122109AQ

Audi TT 8N 1.8 T AUQ Cooler Water Hose Line Tube Pipe 1J0122109AQ

Product currently unavailable

Part no. 04L121058F

Audi A3 8V A4 B8 Coolant Water Hose Pipe Line 2.0 TDI 04L121058F

Product currently unavailable

Part no. 03G906088AN

Audi A3 8P A4 B7 VW Golf Mk6 Exhaust Gas Temperature Sensor Diesel 03G906088AN

Product currently unavailable

Part no. 079121065BD

Audi RS4 B7 Radiator Coolant Hose Pipe Line A079121065BD

Product currently unavailable

Part no. 8E0121321

Audi A6 C6 Radiator Water Coolant Expansion Tank Cap Cover Lid 8E0121321

Product currently unavailable

Part no. 8W0819334G

Audi A4 S4 8W B9 A5 S5 F5 Heater Water Coolant Hose Pipe Line 8W0819334G

Product currently unavailable

Part no. 8E0121049N

Audi A4 B7 Water Hose Cooling Radiator Coolant Pipe Line 8E0121049N

Product currently unavailable

Part no. 6C0122101AC

Audi A1 8X Water Coolant Pipe Hose Line Flange 1.4 TFSI 6C0122101AC

Product currently unavailable

Part no. 4F0959455J

Audi A6 C6 Coolant Radiator Fan Motor Shroud Right O/S TDI 400W 4F0959455J

Product currently unavailable

Part no. 06E121045E

Audi A4 B7 Water Hose Radiator Coolant Pipe Line Tube 3.2 TFSI 06E121045E

Product currently unavailable

Part no. 1J0122291C

Audi A1 8X A3 8P 8V Skoda Octavia Water Coolant Pipe Hose Line 1J0122291C

Product currently unavailable

Part no. 6C0129637

Audi A1 8X 1.8 TFSI TSI Engine Water Coolant Pipe Hose Line Tube 6C0129637

Product currently unavailable

Part no. 079121014M

Audi A7 S7 4G 4.0 TFSI Water Pump Coolant Cooling Unit 079121014M

Product currently unavailable

Part no. 04L122157BB

Audi A4 B8 A5 8T Water Coolant Pipe Line Hose Tube 2.0 TDI 04L122157BB

Product currently unavailable

Part no. 059121454C

Audi A4 B8 A6 C7 A8 D4 A7 4K Radiator Coolant Hose Pipe Line 3.0 TDI 059121454C

Product currently unavailable

Part no. 8W0819342B

Audi A4 S4 B9 8W A5 S5 F5 Heater Water Coolant Hose Pipe Line 8W0819342B

Product currently unavailable

Part no. 7L0965561-1

Audi Q7 4L VW Touareg Additional Auxiliary Water Coolant Pump 3.0 TDI 7L0965561

Product currently unavailable

Part no. 059131056R

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

Product currently unavailable

Part no. 06E121065H

Audi A4 B7 A8 A6 Coolant Hose Pipe Line 06E121065H

Product currently unavailable

Part no. 079121071BB

Audi RS4 B7 Radiator Coolant Hose Pipe Line A079121071BB

Product currently unavailable

Part no. 8K0121081BH

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

Product currently unavailable

Part no. 8R0121071H

Audi Q5 8R Coolant Water Hose Line Tube Pipe 8R0121071H

Product currently unavailable

Part no. 03L121157AE

Audi A6 S6 4G 4F Q5 8R Engine Coolant Pipe Hose Tube Line 2.0TDi 03L121157AE

Product currently unavailable

Part no. 04L122157AQ

Audi A4 B9 A5 F5 Engine Coolant Pipe Hose 2.0 TDI Diesel 04L122157AQ

Product currently unavailable

Part no. 5Q0121070BR-1

Audi A3 8V 2.0 TFSI Water Hose Engine Coolant Cooling Pipe Line 5Q0121070BR

Product currently unavailable

Part no. 04L121011E-1

Audi A3 8V A4 B8 Electric Water Pump Unit 2.0 TDI Diesel Engine 04L121011E

Product currently unavailable

Part no. 8P0820741A

Audi RS3 8P Refrigerant Hose Cooling Radiator Coolant Pipe Line 8P0820741A

Product currently unavailable

Part no. 06F145383N

Audi TTS 8J Turbocharger Coolant Pipe Hose Line 2.0 TFSI 06F145383N

Product currently unavailable

Part no. 022121117C

Audi A3 8P 3.2 BMJ Petrol Engine Water Thermostat Coolant Housing 022121117C

Product currently unavailable

Part no. 4F0819378F

Audi A6 C6 2.0 TFSI Coolant Water Heater Pipe Hose Line 4F0819378F

Product currently unavailable

Part no. 079121115BD

Audi A7 4G 4.0 TFSI Petrol Engine Water Coolant Thermostat Housing 079121115BD

Product currently unavailable

Part no. 6R0121447P

Audi A1 8X 1.2 TFSI CBZA Radiator Water Coolant Pipe Hose Line 6R0121447AJ

Product currently unavailable

Part no. 06L121111M-1

Audi A3 S3 8V Water Pump Thermostat Coolant Regulator 2.0 TFSI 06L121111M

Product currently unavailable

Part no. 079121115E

Audi RS4 B7 4.2 FSI Water Pump Thermostat Coolant Housing 079121115E

Product currently unavailable

Part no. 8K0819374D

Audi S4 B8 A5 8T Water Pipe Engine Cooling Coolant Hose Line 3.0 TFSI 8K0819374D

Product currently unavailable

Part no. 06H121497A

Audi A5 8T Turbine Cooling Hose Line Pipe 06H121497A

Product currently unavailable

Part no. 06B121065

Audi A4 B7 1.8 T BFB Petrol Engine Coolant Return Pipe Hose Line 06B121065

Product currently unavailable

Part no. 06A145735AA

Audi TT 8N 1.8T AUM Turbo Oil Return Pipe Hose Line Tube 06A145735AA

Product currently unavailable

Part no. 7L8121058A

Audi Q7 4L 4.2 TDI Coolant Hose Radiator Pipe Water Cooling Line 7L8121058A

Product currently unavailable

Part no. 06H115251M

Audi A5 8T 2.0 TFSI CDNB Oil Suction Line Tube Pipe Hose 06H115251M

Product currently unavailable

Part no. 7L8121058

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

Product currently unavailable

Part no. 059121008A

Audi A7 4G8 Water Pump Wheel Coolant Unit 3.0 TDI Diesel 059121008A

Product currently unavailable

Part no. 06D121085

Audi A4 B7 2.0 TFSI BGB Turbo Water Coolant Hose Line Tube Pipe 06D121085

Product currently unavailable

Part no. 07C121599A

Audi A6 C6 2.0 TFSI Auxiliary Water Pump Coolant Unit 07C121599A

Product currently unavailable

Part no. 079121081

Audi S7 4G 4.0 TFSI Coolant Hose Engine Water Pipe Front Upper 079121081

Product currently unavailable

Part no. 8E0121101T-1

Audi A4 B7 Upper Radiator Coolant Hose Pipe Line 3.2 AUK 8E0121101T

Product currently unavailable

Part no. 4K0145963C

Audi A6 C8 Water Coolant Pipe Hose Line 50 TFSIe 4K0145963C

Product currently unavailable

Part no. 4G0122449

Audi A7 4G Engine Water Coolant Cooling Hose Pipe Line 3.0 TDI Diesel 4G0122449

Product currently unavailable

Part no. 8K0145923B

Audi A4 S4 B8 A5 S5 8T Radiator Coolant Hose Tube Pipe Line 3.0 TFSI 8K0145923B

Product currently unavailable

Part no. 06A121497Q

Audi TT 8N 1.8T AUM Turbo Coolant Return Feed Pipe Hose Line Tube 06A121497Q

Product currently unavailable

Part no. 04C133320F

Audi A1 8X Fuel Injection Line Pressure Pipe Rail Injector 1.0 TFSI 04C133320F

Product currently unavailable

Part no. 420121233

Audi R8 42 Radiator Support Mount Bracket Left N/S Side 4.2L Petrol 420121233

Product currently unavailable

Part no. 4K0819374R

Audi A6 C8 3.0 TDI Engine Coolant Pipe Water Hose Cooling Line Tube 4K0819374R

Product currently unavailable

Part no. 4K0145947E

Audi A6 C8 A7 4G Water Coolant Pipe Hose Line 50 TFSIe 4K0145947E

Product currently unavailable

Part no. 8J0121284A

Audi TT 8J Mk2 Radiator Air Guide Duct Cover Right O/S 8J0121284A

Product currently unavailable

Part no. 4G0121448AK

Audi A6 C7 A7 4G Water Coolant Hose Pipe Line 3.0 TDI 4G0121448AK

Product currently unavailable

Part no. 2Q0122109E

Audi A1 GB Water Coolant Cooling Pipe Hose Line 1.0 TFSI Petrol 2Q0122109E

Product currently unavailable

Part no. 07K121011J

Audi RS3 8V TTRS 8S Engine Water Coolant Pump 2.5 TFSI DAZA 07K011J

Product currently unavailable

Part no. 8K0121052C

Audi A4 S4 B8 A5 8T Engine Water Coolant Pipe Hose Tube Line 8K0121052C

Product currently unavailable

Part no. 4K0145050C

Audi A6 C8 Engine Water Coolant Pipe Hose Line 50 TFSIe 4K0145050C

Product currently unavailable

Part no. 2Q0122101BP-1

Audi A1 Coolant Cooling Hose Pipe Line 1.0 TFSI Petrol 2Q0122101BP

Product currently unavailable

Part no. 8V0121397A

Audi RSQ3 F3 Engine Water Coolant Hose Pipe Left N/S 2.5 TFSI 8V0121397A

Product currently unavailable

...

Showing 1486-1584 of 1822 products