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.

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

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 03L122157Q

Audi A4 B8 A5 8T Coolant Pipe Water Cooling Line 2.0 TDI 03L122157Q

£18.95

Free delivery: Sep 08

If paid before 14:00

Part no. 8K0959455K

Audi A5 S5 8T Engine Cooling Radiator Fan Shroud Panel 8K0959455K

£23.95

Free delivery: Sep 08

If paid before 14:00

Part no. 03L121065T

Audi A3 8P 2.0 TDI Hose Thermostat Coolant Pipe Line 03L121065T

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 5Q0959455AM-1

Audi S3 8V Radiator Fan Engine Motor Cooling 5Q0959455AM

£118.95

Free delivery: Sep 08

If paid before 14:00

Part no. 03C121111T

Audi A1 8X 1.4 TSI Petrol Engine Water Coolant Thermostat Housing 03C121111T

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 8K0145673AM

Audi A5 8T 2.0 CNCD Petrol Intercooler Pipe Hose Line Tube 8K0145673AM

£37.95

Free delivery: Sep 08

If paid before 14:00

Part no. 06K121132

Audi S3 8V Water Coolant Engine Cooling Flange Pipe Hose Line Petrol 06K121132

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 8K0819376F

Audi A4 B8 Q5 8R A5 8T Water Coolant Hose Pipe Line TFSI Petrol 8K0819376F

£28.95

Free delivery: Sep 08

If paid before 14:00

Part no. 4F0121251Q

Audi A6 C6 2.0 TDI Engine Cooling Radiator For Manual Gearbox 4F0121251Q

£47.95

Free delivery: Sep 08

If paid before 14:00

Part no. 7L8121073J

Audi Q7 4L 3.0 TDI Coolant Hose Radiator Pipe Water Cooling Line 7L8121073J

£18.95

Free delivery: Sep 08

If paid before 14:00

Part no. 4G0145804A

Audi Q5 8R 2.0 TDI Quattro Engine Coolant Radiator Intercooler 4G0145804A

£75.95

Free delivery: Sep 08

If paid before 14:00

Part no. 5Q0121205R

Audi S1 8X S3 8V Engine Cooling Radiator Fan Shroud Motor 2.0 TFSI 5Q0121205R

£189.95

Free delivery: Sep 08

If paid before 14:00

Part no. 7L6122109D

Audi Q7 4L TFSI Water Hose Cooling Coolant Radiator Pipe Line 7L6122109D

£18.95

Free delivery: Sep 08

If paid before 14:00

Part no. 8W0819334F

Audi A4 B9 35 TFSI Water Hose Cooling Radiator Coolant Pipe Line 8W0819334F

£19.95

Free delivery: Sep 08

If paid before 14:00

Part no. 06K109121B

Audi A3 8V TT FV 2.0 TFSI Volkswagen Golf 7 Petrol Water Pump Cover 06K109121B

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 06K121075Q

Audi S3 8V Water Hose Cooling Coolant Radiator Pipe Line 06K121075Q

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 8R0122055

Audi Q5 8R Heater Water Cooling Coolant Pipe Hose Line 8R0122055

£47.95

Free delivery: Sep 08

If paid before 14:00

Part no. 8E0121251A

Audi A4 B7 2.0 TDI Diesel Coolant Radiator Water Cooling Radiator 8E0121251A

£18.95

Free delivery: Sep 08

If paid before 14:00

Part no. 06K109121E

Audi S3 8Y 2.0 TFSI Volkswagen Golf 8 Petrol Water Pump Cover 06K109121E

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 5Q0121251EC

Audi Q2 GA Coolant Radiator Engine Cooling Unit Radiator 1.6 TDI 5Q0121251EC

£51.95

Free delivery: Sep 08

If paid before 14:00

Part no. 059121065EA

Audi A4 B9 A5 F5 Water Hose Cooling Coolant Radiator Pipe 3.0 TDI 059121065EA

£18.95

Free delivery: Sep 08

If paid before 14:00

Part no. 8R0121081AQ

Audi Q5 8R Expansion Coolant Radiator Hose Pipe Tube Line Cooling 8R0121081AQ

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 1K0122073GE

Audi A3 8P VW Golf Mk6 Water Hose Cooling Coolant Radiator Pipe Line 1K0122073GE

£28.95

Free delivery: Sep 08

If paid before 14:00

Part no. 03L906088BE

Audi Q5 8R 2.0 TDI CJCA Diesel Engine Exhaust Temperature Sensor 03L906088BE

£18.95

Free delivery: Sep 08

If paid before 14:00

Part no. 8K0959455P

Audi Q3 8U Radiator Fan Engine Cooling Cooler Blower Unit 8K0959455P

£32.95

Free delivery: Sep 08

If paid before 14:00

Part no. 059130299AS

Audi A4 B9 Q7 4M Fuel Line Pressure Sensor Pipe Hose 3.0 TDI Diesel 059130299AS

£37.95

Free delivery: Sep 08

If paid before 14:00

Part no. 5Q0121058AE

VW Polo GTI AW Audi A3 8V Water Hose Cooling Coolant Pipe 2.0 TFSI 5Q0121058AE

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 06A121133AL

Audi A3 8P 1.6 MPI BSE Petrol Coolant Thermostat Housing Sensor 06A121133AL

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 8K0819332M

Audi A4 B8 Water Coolant Pipe Hose Line Tube 2.0 TDI CNHC 8K0819332M

£32.95

Free delivery: Sep 08

If paid before 14:00

Part no. 4H0959455T

Audi A5 8F Radiator Fan Engine Cooling Motor Unit Brose 4H0959455T

£94.95

Free delivery: Sep 08

If paid before 14:00

Part no. 8W0122101AL

Audi A5 8T Coolant Water Hose Line Tube Pipe 2.0 TDI Diesel 8W0122101AL

£23.95

Free delivery: Sep 08

If paid before 14:00

Part no. 8K0145919C

Audi A4 B8 2.0 TDI CNHC Engine Water Coolant Hose Pipe Line 8K0145919C

£47.95

Free delivery: Sep 08

If paid before 14:00

Part no. 04E121070AC

Audi A1 8X 1.4 TFSI CZCA Radiator Coolant Hose Line Tube Pipe 04E121070AC

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 03C121050P

Audi A1 8X Oil Cooler Water Pipe 1.4 TSI Engine 03C121050P

£18.95

Free delivery: Sep 08

If paid before 14:00

Part no. 04L121026Q

Audi TT FV A3 8V Water Pump Thermostat Housing Pipe Connector 04L121026Q

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 4G0122449D

Audi A7 4G Engine Water Coolant Cooling Hose Pipe Line 3.0 TDI 4G0122449D

£32.95

Free delivery: Sep 08

If paid before 14:00

Part no. 8W0122055AM

Audi S4 B9 Turbo Coolant Hose Line Tube Pressure Pipe 3.0 Petrol 8W0122055AM

£23.95

Free delivery: Sep 08

If paid before 14:00

Part no. 8W0122101B-1

Audi A4 B9 A5 F5 Water Hose Cooling Coolant Radiator Pipe Line 8W0122101B

£18.95

Free delivery: Sep 08

If paid before 14:00

Part no. 059121031L

Audi A4 B8 2.7 TDI Diesel Coolant Pump Pulley Water Pump Wheel 059121031L

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 5Q0121251HA-1

Seat Leon Cupra 5F Engine Cooling Radiator Coolant Unit 2.0 Tfsi 5Q0121251HA

£142.95

Free delivery: Sep 08

If paid before 14:00

Part no. 4F0121403N

Audi A6 C6 Coolant Expansion Tank Reservoir Bottle Fluid Tank 4F0121403N

£18.95

Free delivery: Sep 08

If paid before 14:00

Part no. 8K0121049L

Audi A4 B8 Water Hose Radiator Coolant Pipe Line 2.0 TDI 8K0121049L

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 03G121096

Audi A4 B8 2.0 TDI Water Hose Radiator Coolant Pipe Line 03G121096

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 03C121497F

Audi A1 8X Water Pipe Hose Line Engine Cooling Coolant Unit Hose 03C121497F

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 04L121065AK

Audi A5 8T Heater Water Cooling Coolant Pipe Hose Line 04L121065AK

£18.95

Free delivery: Sep 08

If paid before 14:00

Part no. 06H121601P

Audi A6 C8 A5 F5 Q7 4M Electric Additional Auxiliary Water Pump 06H121601P

£37.95

Free delivery: Sep 08

If paid before 14:00

Part no. 8W0819332E

Audi A4 S4 B9 3.0 TFSI Water Hose Cooling Engine Coolant Pipe Line 8W0819332E

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 03N115389H-1

Audi A4 B8 A5 8T Q5 8R Oil Filter Housing Cover 2.0 TDI 03N115389H

£28.95

Free delivery: Sep 08

If paid before 14:00

Part no. 7L6122051T

Audi Q7 4L 3.0 TDI BUG Water Coolant Hose Pipe Line Tube 7L6122051T

£18.95

Free delivery: Sep 08

If paid before 14:00

Part no. 4G0122101AJ

Water Hose Audi A6 C7 A7 4G Diesel Cooling Radiator Pipe Line 4G0122101AJ

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 06E121083N

Audi A4 S4 B8 3.0 TFSI Water Hose Coolant Pipe Line Tube 06E121083N

£32.95

Free delivery: Sep 08

If paid before 14:00

Part no. 8E0121107AG

Audi A4 B7 2.0 TDI Water Hose Vent Coolant Radiator Pipe Line 8E0121107AG

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 7H0819617-1

Audi Q7 4L Webasto Auxiliary Water Heater Air Filter Unit 7H0819617

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. RHD-4G2122449A

Audi A6 C7 A7 4G Water Coolant Pipe Line Hose 3.0 TDI 4G2122449A

£23.95

Free delivery: Sep 08

If paid before 14:00

Part no. 6C0122101E

Audi A1 8X 1.4 TFSI Water Coolant Pipe Hose Cooling Line 6C0122101E

£28.95

Free delivery: Sep 08

If paid before 14:00

Part no. 1K0133366BK

Audi A3 8P FL TT 8J 1.8 Petrol CDAA Water Coolant Connection Hose 1K0133366BK

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 8W0959455J

Audi A4 B9 Radiator Fan Engine Cooling Fan Motor Blades 400W 8W0959455J

£94.95

Free delivery: Sep 08

If paid before 14:00

Part no. 8J0121447F

Audi TT 8J 1.8 Petrol CDAA Engine Coolant Vent Hose Pipe 8J0121447F

£18.95

Free delivery: Sep 08

If paid before 14:00

Part no. 5Q0121064BB

Audi A3 8V Water Pipe Hose Engine Cooling Coolant Unit Line 5Q0121064BB

£18.95

Free delivery: Sep 08

If paid before 14:00

Part no. 1K0121063J

Audi TT 8J Water Coolant Hose Pipe Line Tube 1K0121063J

£18.95

Free delivery: Sep 08

If paid before 14:00

Part no. 4G0317818S

Audi A7 4G Oil Pipe Line Tube Hose Automatic Gearbox Transmission 4G0317818S

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 8K0121101J

Audi A4 B8 Engine Water Coolant Hose Pipe Line Coolant 8K0121101J

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 5Q0122101BL

Audi A3 8V 2.0 TDI Water Hose Radiator Coolant Pipe Line Diesel 5Q0122101BL

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 04L122157BC

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

£28.95

Free delivery: Sep 08

If paid before 14:00

Part no. 4H0906088AA

Audi A8 D4 Temperature Sensor Diesel Engine Exhaust Gas Sensor Probe 4H0906088AA

£18.95

Free delivery: Sep 08

If paid before 14:00

Part no. 4H0906088AB

Audi A8 D4 Temperature Sensor Diesel Engine Exhaust Gas Sensor Probe 4H0906088AB

£18.95

Free delivery: Sep 08

If paid before 14:00

Part no. 04L121131AD

Audi A5 8T Water Coolant Flange Pipe Hose Line 04L121131AD

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 03N115389H

Oil Filter Housing Audi A4 B8 A5 8T Q5 8R 2.0 TDI Engine Oil Cooler 03N115389H

£23.95

Free delivery: Sep 08

If paid before 14:00

Part no. 4G0121071N

Audi A7 4G8 3.0 TDI CDUC Diesel Water Coolant Hose Line Tube Pipe 4G0121071N

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. RHD-5WC819021A

Audi A3 8Y 30 TFSI DXDE Air Heater Blower Motor Fan Resistor 5WC819021A

£18.95

Free delivery: Sep 08

If paid before 14:00

Part no. 06D145778C

Audi A4 B7 2.0 TFSI BGB Oil Supply Feed Hose Line Pipe Tube 06D145778C

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 06J121075F

Audi TT 8J A3 8P Petrol Coolant Hose Diesel Water Pipe Line Tube 06J121075F

£23.95

Free delivery: Sep 08

If paid before 14:00

Part no. 4F0121055J

Audi A6 C6 Water Hose Coolant Cooling Tube Pipe Line 4F0121055J

£18.95

Free delivery: Sep 08

If paid before 14:00

Part no. 06D121071R

Audi A4 B7 2.0 TFSI BGB Water Coolant Hose Tube Line Pipe 06D121071R

£23.95

Free delivery: Sep 08

If paid before 14:00

Part no. 5Q0121109S

Audi A3 8V Water Coolant Engine Cooling Flange Pipe Hose Line 5Q0121109S

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 03L121157AQ

Audi A4 B8 A5 8T 2.0 TDI Water Hose Cooling Radiator Pipe Line 03L121157AQ

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 6R0145805F

Audi A1 8X Motor Engine Coolant Radiator Intercooler Diesel 6R0145805F

£37.95

Free delivery: Sep 08

If paid before 14:00

Part no. 2Q0121321A-1

SEAT Audi Volkswagen Skoda Water Coolant Expansion Tank Cap Cover 3C0121321

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 8K0121003AD

Audi A7 4G8 Engine Cooling Radiator Twin Coolant Fan Diesel 8K0121003AD

£37.95

Free delivery: Sep 08

If paid before 14:00

Part no. 8J0121109A

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

£18.95

Free delivery: Sep 08

If paid before 14:00

Part no. 4G0122101B

Audi A6 C7 3.0 TDI Diesel Radiator Upper Hose Line Pipe Left N/S 4G0122101B

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 7H0819617

Audi Q7 4L Webasto Auxiliary Water Heater Air Filter Unit Pipe 7H0819617

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 06D145735B

Audi A4 B7 2.0 TFSI BGB Petrol Oil Hose Line Tube Pipe 06D145735B

£23.95

Free delivery: Sep 08

If paid before 14:00

Part no. 7L6121212B

Audi Q7 4L 4.2 TDI Diesel Additional Radiator Right O/S Auxiliary 7L6121212B

£18.95

Free delivery: Sep 08

If paid before 14:00

Part no. 5Q0121051K

Audi S3 8V Water Pipe Hose Engine Coolant Cooling Line 5Q0121051K

£32.95

Free delivery: Sep 08

If paid before 14:00

Part no. 06H145771

Audi A4 B8 Turbocharger Oil Feed Tube Pipe Line Hose 1.8 TFSI Petrol 06H145771

£28.95

Free delivery: Sep 08

If paid before 14:00

Part no. 06E121031B

Audi A4 S4 B8 3.0 V6 Coolant Pump Pulley Water Pump Wheel Petrol 06E121031B

£18.95

Free delivery: Sep 08

If paid before 14:00

Part no. 8R0121081M

Audi Q5 8R Expansion Bottle Tank Radiator Hose Line Tube Pipe 8R0121081M

£18.95

Free delivery: Sep 08

If paid before 14:00

Part no. 8K0959455F

Engine Cooling Radiator Audi A4 B8 Q5 8R Coolant Fan Motor 200W 8K0959455F

£47.95

Free delivery: Sep 08

If paid before 14:00

Part no. 05L121111P

Audi A4 B9 A5 F5 Engine Coolant Thermostat Housing Diesel 2.0 TDI 05L121111P

£94.95

Free delivery: Sep 9 – 16

If paid before 14:00

Part no. 03G121065R

Audi A4 B7 2.0 TDI BRE Water Coolant Pipe Hose Line 03G121071A

£123.95

Free delivery: Sep 08

If paid before 14:00

Part no. 06K121075BF

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

£23.95

Free delivery: Sep 08

If paid before 14:00

Part no. 6C0122051AE

Audi A1 8X 1.4 TFSI CZCA Coolant Hose Line Tube Pipe 6C0122051AE

£18.95

Free delivery: Sep 08

If paid before 14:00

Part no. 8K0121055N

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

£28.95

Free delivery: Sep 08

If paid before 14:00

Part no. 5Q0121599AA

Audi A3 S3 8V Auxiliary Water Pump Coolant Circulation Cooling Unit 5Q0121599AA

£56.95

Free delivery: Sep 08

If paid before 14:00

Part no. 8R0121101J

Audi Q5 8R 2.0 TDI Coolant Water Hose Line Tube Pipe 8R0121101J

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. RHD-4E0959617C-1

Audi A8 S8 D3 Auxiliary Water Pump Electric Coolant Unit Valve 4E0959617C

£108.95

Free delivery: Sep 08

If paid before 14:00

Part no. 8K0317823B

Oil Pipe Audi A4 B8 A5 8T Diesel Gearbox Cooler Line 8K0317823B

£61.95

Free delivery: Sep 08

If paid before 14:00

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